Design and selection scheme of power management system for communication equipment room (data information center)

Design and selection scheme of power management system for communication equipment room (data information center)
Quan Jianhong
Shanghai Ankerui Electric Co., Ltd., Jiading, Shanghai 201801
1 Overview
"Energy saving and emission reduction" has now become an important indicator to measure the company's future sustainable development. With the expansion of telecommunications, banking, and large-scale enterprise services, the management and maintenance costs and rising electricity costs brought by huge data centers have become a major problem for corporate executives. How do electrical hazards arise? How is electricity consumed? This article introduces the power monitoring and management scheme of the data information center based on the rail-mounted power monitoring instruments. The solution is mainly composed of a touch screen, single-phase or three-phase AC signal acquisition unit, and transformers. It can collect and display voltage, current, active power, reactive power, power factor, harmonics, and energy in real time in the data center power supply.
2 Power management system should choose rail-mounted power monitoring instruments
Ankerui rail-mounted power monitoring instrument adopts DIN35mm rail-mounted structure, LCD display, measures electrical energy and other electrical parameters, can set parameters such as clock and rate period, and has energy pulse output function; available RS485 communication interface and upper position Data exchange.

This type of meter has the advantages of small size, high precision, good reliability, easy installation, etc. The performance indicators meet the technical requirements of the national standard GB / T 17215, GB / T 17883 and the power industry standard DL / T614 for electric energy meters, and are suitable The sub-metering of electric energy in government agencies and large-scale public construction can also be used in enterprises and institutions for electric energy management assessment.

4.3 Power line monitoring
The power supply line monitoring is composed of a display touch screen and DTSD1352-H.
4.3.1 Touch screen
The touch screen adopts Kunlun on-state 7-inch screen, the model is TPC7062KS, the working power supply is DC24V / 30W, the main performance characteristics are, there are two serial ports that can be used at the same time, it is used for communication of multiple instruments, and can read all the instruments collected Data, and can set the ratio of the instrument online. The data collected by the touch screen can be forwarded to other devices (such as computers) through the Modbus-RTU protocol through the RS232 interface. If RS485 transmission is required, an additional RS485-RS232 converter is required.
The main function of the touch screen is to dynamically display the data collected by various instruments to the human-computer interaction interface in time, perform alarm or alarm data storage and upload, and real-time and historical alarm display when the alarm is needed. The alarm records that can be stored are greater than 20,000.

The main detection data objects are bus current, voltage, power, electric energy, bus harmonic data, voltage, current, power, electric energy of each branch, and the branching status of each branch. The display is mainly digital display, line chart, bar chart, see Figure 3.

The installation of the touch screen is embedded, the size of the touch screen frame is 226.5 & TImes; 163mm, and the size of the opening is 215 & TImes; 152mm.
The touch screen can also be equipped with products of the same performance from other manufacturers.
IBM Research Report in the Technology Zone: Will traditional enterprises break the balance after counterattack? Time is right for everyone, Zhaoyi is deeply innovating in the layout of the memory chip industry chain. EMC design component selection and circuit design are critical. "Universal chip": Solving the new problem of the "5G era" How can Chinese semiconductor companies go their own way? And look at the ranking list TOP50

Follow WeChat

Interesting and informative information and technical dry goods

Download Audiophile APP

Create your own personal electronic circle

Follow the audiophile class

Lock the latest course activities and technical live broadcast
Collect People collection
share it:
comment
Publish

related suggestion

1. Main technical specifications of vehicles and key design of batteries

I recently converted a private car into an electric vehicle (EV), and as an engineer, I have to get it done anyway. Figure 1 shows what I received ...

Published on 2018-04-16 09:28 • 165 times read
1. Main technical specifications of vehicles and key design of batteries
Key elements for creating smart lighting solutions

The development of commercial LED lighting has prompted a comprehensive reflection on how to implement commercial lighting. This article will discuss a few used to create advanced lighting solutions ...

Published on 2018-04-13 09:03 • 1028 views
Key elements for creating smart lighting solutions
Design scheme of isolated flyback and non-isolated BUCK applications

In product design, if the application environment's requirements for power isolation are not taken into account, the system will be caused by improper design solutions when the product is applied ...

Published on 2018-04-13 08:35 • 1283 times read
Design scheme of isolated flyback and non-isolated BUCK applications
Solve the problem of excessive current leakage in battery components

Many modern portable devices must be shipped with a battery installed so that customers can turn on the device immediately without installing or charging the battery. If connected to the battery ...

Published on 2018-04-12 09:41 • 2054 views
Solve the problem of excessive current leakage in battery components
Backup solution for 5V and 12V voltage rails

The IC current is reduced to a point where the voltage across RA drops below the gate threshold level of Q2 and Q2 is turned off, so ...

Published on 2018-04-11 07:11 • 947 views
Backup solution for 5V and 12V voltage rails
Tracking system requires integrated power management application design

The vehicle tracking system is ideal for monitoring a car or an entire fleet. The tracking system consists of automatic tracking hardware and is used to collect data (if needed, there is ...

Published on 2018-04-11 06:06 • 1029 views
Tracking system requires integrated power management application design
Interpretation of two popular wireless charging transmitter solutions in the market

After the new agreement is enforced, the type of Qi certification that Apple ’s 7.5W transmitter needs to pass is EPP (MP-A11).

Published on 2018-04-10 08:55 • 1172 times read
Interpretation of two popular wireless charging transmitter solutions in the market
Read the disassembly and process of automotive battery modules in one article

There are actual material specifications here. It is difficult for non-designers to fully communicate with suppliers. However, it is better to arrange the materials according to the material number ...

Published on 2018-04-10 08:29 • 1311 views
Read the disassembly and process of automotive battery modules in one article
Design scheme of power management in electric motorcycle

Imagine: on a sunny summer day, you ride a motorcycle on a high-speed road, the sun shines on your face, and your hair flutters in the wind. When people think of motorcycles, ...

Published on 2018-04-08 09:08 • 1882 times read
Design scheme of power management in electric motorcycle
How to convert a dual power circuit to a single power circuit

A single power supply operational amplifier requires an external virtual ground. Normally, this voltage is VCC / 2. The circuit in Figure 2 can be used to generate VCC ...

Published on 2018-04-06 09:37 • 2594 views
How to convert a dual power circuit to a single power circuit
Why the interface problem in the all-solid battery has not been effectively solved

After the electrolyte is changed from liquid to solid, the lithium battery system changes from the electrode material-solid electrolyte interface to the electrode material-solid electrolyte solid ...

Published on 2018-04-06 09:17 • 1902 times read
Why the interface problem in the all-solid battery has not been effectively solved
Introduce the MOSFET drive circuits commonly used in several module power supplies

MOSFET is widely used in switching power supply because of its low on-resistance and fast switching speed. MOSFET drive is often based on electric ...

Posted at 2018-04-05 09:19 • 6436 times read
Introduce the MOSFET drive circuits commonly used in several module power supplies
The product's individual isolation performance does not meet the standard. Is the module broken?

When using isolated transceivers, you may encounter that the module functional test has passed, but there are always cases where individual isolation performance does not meet the standards when applied to the product, yes ...

Published on 2018-04-05 09:00 • 1965 reading
The product's individual isolation performance does not meet the standard. Is the module broken?
220V AC to 12V DC reference design

In the design and use of the usual logic circuit, we often use 12V power supply, then we need a power circuit to get what we can ...

Published on 2018-04-04 09:30 • 3051 views
220V AC to 12V DC reference design
Suitable for many switch mode DC / DC topologies

As an application engineer, I know that the implementation of a buck regulator inevitably involves efficiency and size tradeoffs. Although this principle applies to many open ...

Published on 2018-04-03 09:13 • 1827 times read
Suitable for many switch mode DC / DC topologies
Adopt D-CAP2 mode control to complete the design of 12V to 5V power supply

[Introduction] In the era of using 51 single-chip microcomputers for development and design, a 7805 power management chip is an indispensable thing. The biggest input ...

Published on 2018-04-02 09:12 • 2055 views
Adopt D-CAP2 mode control to complete the design of 12V to 5V power supply
Highly integrated power management solution in vehicle tracking system

The adoption of car and fleet tracking systems is rising, but what are the components of tracking systems? What is the key to the design? ... an article to help you thoroughly sort through.

Published on 2018-04-02 08:48 • 2144 times read
Highly integrated power management solution in vehicle tracking system
One article teaches you a variety of 5V to 3.3V level application circuit design

If the attenuator is behind a unity-gain follower, then the highest impedance for a 5V source. The op amp must be powered from 5V, the 3V side ...

Published on 2018-03-31 07:57 • 3081 views
One article teaches you a variety of 5V to 3.3V level application circuit design
New-energy vehicle design can not be ignored battery cells and battery materials

Recently, Tesla and BYD stock prices have been going down. Tesla has fallen by $ 100, and BYD has also dropped by 10 yuan. As new energy vehicles enter ...

Published on 2018-03-30 08:52 • 1544 views
New-energy vehicle design can not be ignored battery cells and battery materials
Battery system group mode and Bolt system

The two end plates of the lower module are fixed on the box; the plastic frame in the middle of the module is fixed on the beam of the lower box through the sheet metal parts; in addition, the module is pressed through the sheet metal parts ...

Published on 2018-03-29 08:38 • 1127 times read
Battery system group mode and Bolt system
How to accurately measure the core indicator ripple of the power supply

Ripple is the core indicator of power supply, but how to accurately measure ripple is indeed a widely ignored problem.

Published on 2018-03-29 08:34 • 1266 times read
How to accurately measure the core indicator ripple of the power supply
Tektronix at Munich Electronics Show: Focus on six areas and provide complete test solutions

Tektronix brought in IoT, Power, 3Dsensing, TekSmartLab, TekSmartLab, Dat ...

Published on 2018-03-28 18:31 • 1176 times read
Tektronix at Munich Electronics Show: Focus on six areas and provide complete test solutions
Rutronik to participate in Shenzhen for the first time to participate in the industry event CITE 2018

Rutronik Elektronische, a global distributor of electronic components and a well-known manufacturer in the Asian electronics supply chain ...

Published on 2018-03-28 14:45 • 1125 views
Rutronik to participate in Shenzhen for the first time to participate in the industry event CITE 2018
Relying on the saturation behavior of a single-supply operational amplifier to achieve rectification

When the absolute value of a signal is required, we often use a high-precision rectifier circuit, which is an integral part of the signal size measurement circuit in metrology applications. ...

Published on 2018-03-28 09:18 • 1558 times read
Relying on the saturation behavior of a single-supply operational amplifier to achieve rectification
After the power IC and MOS tube are selected, it is very close to choose the appropriate drive circuit ...

MOSFET is widely used in switching power supply because of its low on-resistance and fast switching speed. MOSFET drive is often based on power IC and ...

Published on 2018-03-28 08:33 • 1116 times read
After the power IC and MOS tube are selected, it is very close to choose the appropriate drive circuit ...
ITECH at the Munich Electronics Show: Combining the advantages of supporting hardware and software to provide the best ...

As a global professional supplier of test and measurement solutions, ITECH brings solutions in the fields of automotive electronics and smart electronics, as well as ...

Published on 2018-03-27 10:50 • 767 views
ITECH at the Munich Electronics Show: Combining the advantages of supporting hardware and software to provide the best ...
How to provide seamless PWM power saving conversion with high efficiency and low ripple

As ordinary people, we have to make trade-offs between different product options every day. I really want to drive a bright red expensive sports car, but I simply ...

Published on 2018-03-27 09:13 • 1736 times read
How to provide seamless PWM power saving conversion with high efficiency and low ripple
At 5V output voltage, quasi-resonant control can achieve over 80% efficiency

Obviously, the era of smartphones and tablets has changed everyone's life. However, the power supply designer may be the only manufacturer who notices these products ...

Published on 2018-03-27 09:13 • 912 views
At 5V output voltage, quasi-resonant control can achieve over 80% efficiency
Discrete design can reduce the cost of power components by more than 50%

One of the most frequently complained problems by power designers is that power is always the last link in the design process. It seems that after the end of most system design arrangements ...

Published on 2018-03-27 09:13 • 1127 times read
Discrete design can reduce the cost of power components by more than 50%
Introduce a simple process for accurate measurement of power supply efficiency

As a simulated field application engineer, my mission is to help customers solve system problems. Sometimes these system problems may be traced to the power supply. last year...

Published on 2018-03-26 09:15 • 1298 times read
Introduce a simple process for accurate measurement of power supply efficiency
Two power solutions that can help engineers simplify FPGAs

I have to admit that power supply to FPGAs has become more and more complicated over time. This article provides some suggestions, hoping to help simplify F ...

Published on 2018-03-26 09:08 • 2300 views
Two power solutions that can help engineers simplify FPGAs
Large-scale shortage of eight-inch wafers MediaTek's power management chip factory competes for ...

As wafer costs continue to rise, and production capacity is tight, IC design industry finds an outlet for price increases. Due to the recent urgent orders, the market spreads, wafer foundry ...

Published on 2018-03-24 09:31 • 646 views
Large-scale shortage of eight-inch wafers MediaTek's power management chip factory competes for ...
Discussion and Application of Spurs in Clock Phase Noise Measurement

A well-designed clock buffer with high gain will tend to suppress AM and pass only phase (timing) errors. However, no input clock buffer is perfect ...

Published on 2018-03-23 ​​09:07 • 1314 times read
Discussion and Application of Spurs in Clock Phase Noise Measurement
Power supply modules cannot be ignored for medium and large power consumption and inefficient regulator heat dissipation!

Used in industrial, healthcare, communications and consumer markets. With these modules, customers can take full advantage of all the advantages of the industry's switching regulators, and have the line ...

Published on 2018-03-23 ​​08:37 • 1497 times read
Power supply modules cannot be ignored for medium and large power consumption and inefficient regulator heat dissipation!
Adapting to the aging of the battery, how to prevent the phone from shutting down unexpectedly?

Most mobile devices currently in use use lithium-ion batteries, and battery performance will decline over time. The battery capacity becomes smaller and the internal impedance becomes larger.

Published on 2018-03-23 ​​08:33 • 1151 views
Adapting to the aging of the battery, how to prevent the phone from shutting down unexpectedly?
Teach you how to connect multiple audio power amplifiers to an output circuit

During design, we may connect multiple audio power amplifiers to an output circuit, the purpose is to multiplex different sources, or connect an external amplifier to ...

Published on 2018-03-21 08:22 • 1385 times read
Teach you how to connect multiple audio power amplifiers to an output circuit
Convert from 48V to 3.3V, see the power converter efficiency!

When reduced from 48 V to 12 V, the total conversion efficiency of the LTM8027 μModule regulator exceeds 92%. Second conversion step ...

Published on 2018-03-20 09:24 • 1559 views
Convert from 48V to 3.3V, see the power converter efficiency!
Complete μModule product series, power supply, interface and signal link ...

It seems surprising that the hybrid circuit technology still exists. However, the government often has broader considerations, including relative to innovation and complex operational requirements, considering the production ...

Published on 2018-03-20 09:15 • 1081 times read
Complete μModule product series, power supply, interface and signal link ...
There are various wireless charging solutions, which one will win in the end?

According to the current trend, wireless charging will be the standard for consumer electronics such as mobile phones, and the Qi standard has already occupied an absolute mainstream advantage in this field ...

Published on 2018-03-20 09:01 • 2100 views
There are various wireless charging solutions, which one will win in the end?
Apple's independent power chip has to wait for suppliers to say that they will not have ...

Apple expects to continue to use Daimler chips in most of its devices.

Published on 2018-03-19 13:42 • 558 times read
Apple's independent power chip has to wait. Suppliers say they haven't ...
Power supply product design, how to deal with conduction power consumption

We will study how to conduct a trade-off between conduction power consumption in the synchronous buck power stage, which is related to the duty cycle and FET resistance ratio. Perform this ...

Published on 2018-03-19 08:58 • 1243 times read
Power supply product design, how to deal with conduction power consumption
FPGA power management is not simple, the five design dead ends must not be ignored ...

There have been many technical discussions about designing excellent power management solutions for FPGA applications, because this is not a simple task. For this task ...

Published on 2018-03-16 11:57 • 1940 reading
FPGA power management is not simple, the five design dead ends must not be ignored ...
How to quickly choose the type through skills? On power supply design

The capacitor is the most common device in the switching power supply. It can be used to reduce ripple noise, and can be used to improve the stability and transient responsiveness of the power supply ...

Published on 2018-03-10 09:34 • 3096 views
How to quickly choose the type through skills? On power supply design
Introduction to power management in medical electronics

Different healthcare applications have different requirements for power management solutions. In terms of power management, healthcare is a very interesting market leader ...

Published on 2018-03-09 23:24 • 95 times read
Introduction to power management in medical electronics
Boost solution from 3V to 36V wide VIN range

The steady-state voltage range of a car battery is 9V to 16V, depending on its state of charge, ambient temperature, and alternator working state. However, the battery ...

Published on 2018-03-08 09:56 • 2222 times read
Boost solution from 3V to 36V wide VIN range
Power Integrations launches output specifications ...

Power Integrations, a leader in the high-voltage integrated circuit industry dedicated to energy-efficient power conversion (NASDAQ stock ...

Published on 2018-03-08 08:12 • 3590 views
Power Integrations launches output specifications ...
Which three power supply topologies of smart locks should I choose?

Linear regulators, boost (boost) or buck (buck) are the three power topologies for most smart locks. Which one do you choose for your design? why...

Published on 2018-03-08 06:30 • 2362 times read
Which three power supply topologies of smart locks should I choose?
How to solve electrical design problems in automotive and industrial applications

Current industrial systems are moving towards electrification, and as voltage levels continue to rise and peak currents increase to hundreds of amps, so when these systems are enabled ...

Published on 2018-03-06 08:44 • 1763 times read
How to solve electrical design problems in automotive and industrial applications
Simple gate pulse drive circuit, turn on or off the RF source in the shortest time?

In pulse radar applications, the high power amplifier (HPA) needs to be quickly turned on / off during the transition from transmitting to receiving operation. Typical conversion time ...

Published on 2018-03-06 08:36 • 1656 times read
Simple gate pulse drive circuit, turn on or off the RF source in the shortest time?
How do the basic phase-locked loops required by various power management affect the phase noise?

Phase-locked loops (PLLs) are the basic building blocks of modern communication systems. PLLs are usually used in radio receivers or transmitters, and mainly provide "local oscillator ...

Published on 2018-03-06 08:29 • 1350 times read
How do the basic phase-locked loops required by various power management affect the phase noise?
High real-time microprocessors will surely become the "core" competitiveness of products

A powerful brain is the soul of the system, i.MX RT series high real-time microprocessor, integrated Cortex-M7 core, up to 600 ...

Published on 2018-03-06 08:21 • 2791 times read
High real-time microprocessors will surely become the "core" competitiveness of products
Analyze multiple power supply topologies from the evolution

There are many kinds of power supply topologies, but in fact we can understand one topology, and we can understand other topological structures. Because the basic elements that make up various topologies ...

Published on 2018-03-05 09:04 • 1467 times read
Analyze multiple power supply topologies from the evolution
A good power supply design, why pay attention to output ripple noise

Ripple noise is an important indicator to measure the power supply. A good power supply must control the output ripple noise within a reasonable range. But generally ...

Published on 2018-03-05 08:35 • 1773 times read
A good power supply design, why pay attention to output ripple noise
TI launched the new 1MHz active clamp flyback chipset and the industry's first ...

TI's new chipset combines UCC28780 active clamp flyback controller and UCC24612 synchronous rectifier controller, ...

Published on 2018-03-02 14:47 • 2434 times read
TI launched the new 1MHz active clamp flyback chipset and the industry's first ...
Optimizing mobile device overload and overheating issues, a good reference design is key!

If the charging treasure overheats during the charging of mobile devices, it is easy to cause fire and explosion and other safety issues. We can often get from the media ...

Published on 2018-03-02 11:11 • 2150 views
Optimizing mobile device overload and overheating issues, a good reference design is key!
Why is the flyback power supply the best in a multi-output system topology

When choosing a system topology that can produce multiple outputs from a single power supply, a flyback power supply is a wise choice. Since the voltage on each transformer winding is related to ...

Published on 2018-03-02 09:13 • 2444 views
Why is the flyback power supply the best in a multi-output system topology
Improve the performance of power tool design, power management can not be ignored

Different losses cause different heating of the top and bottom MOSFETs. When using discrete MOSFETs in system design, you can try these different ...

Published on 2018-03-02 06:52 • 2182 times read
Improve the performance of power tool design, power management can not be ignored
Allegro MicroSystems, LLC ...

The new product is Allegro MicroSystems, a DC / DC power management IC integrated with 4 high-end gate drivers, ...

Published on 2018-02-12 18:22 • 148 times read
Allegro MicroSystems, LLC ...
2018 Infineon's key strategic outlook, intelligence is the focus of the future

It is reported that in 2017 Infineon's power management and diversified market power semiconductor rankings continue to rank first in the world. Looking forward to 2018, Infineon will seize ...

Published on 2018-02-08 11:28 • 349 times read
2018 Infineon's key strategic prospects Intelligence is the focus of the future
60v to 12v converter circuit diagram (five analog circuit design principles ...

This article mainly introduces the circuit diagram of 60v to 12v converter (detailed explanation of five analog circuit design schematics). The DC voltage is converted into inverter by push-pull ...

Published on 2018-02-06 09:01 • 2020 reading
60v to 12v converter circuit diagram (five analog circuit design principles ...
How to prevent "safe" chain off during the performance improvement of electronic products

The most popular mobile game "Glory of the King" divides players into "Bronze, Silver, Gold ..." and other segments. The author started from bronze to hit the strongest king. Is it electricity ...

Published on 2018-02-05 09:44 • 1999 times read
How to prevent "safe" chain off during the performance improvement of electronic products
A high-quality power supply must have: start-up design

A high-quality power supply must have the characteristics of good starting performance and high conversion efficiency, but have you ever thought about the wide input voltage range of the wide voltage power supply, and the power supply ...

Published on 2018-02-02 09:33 • 4567 times read
A high-quality power supply must have: start-up design
Bias timing control requirements, how to make the power supply not "deviation"!

Radio frequency (RF) and microwave amplifiers provide the best performance under specific bias conditions. The quiescent current determined by the bias point affects the linearity and efficiency ...

Published on 2018-01-30 09:16 • 452 views
Bias timing control requirements, how to make the power supply not "deviation"!
Top 10 events in the fuel cell industry in 2017

According to a report from China Hydrogen Energy Network on December 12, 2017, researchers from the Christopher Howe group and Cambridge graphite ...

Published on 2018-01-26 09:30 • 4105 times read
Top 10 events in the fuel cell industry in 2017
Lithium ion battery diaphragm detection method and method

The role of the separator is to separate the positive and negative electrodes of the battery to prevent the positive and negative electrodes from contacting and causing safety problems. At the same time, its microporous structure allows electrolyte ions to pass through

Published on 2018-01-26 09:17 • 3197 times read
Lithium ion battery diaphragm detection method and method
Second-generation multiprocessor SoC for the best low-cost power solution

Xilinx Zynq UltraScale + MPSoC is designed with multiple power domains, and then each power domain will be further refined ...

Published on 2018-01-25 09:29 • 2495 times read
Second-generation multiprocessor SoC for the best low-cost power solution
A detailed analysis of the current flowing from the source of the flyback switching MOSFET

Everyone knows that this spike occurs when the switch MOS is turned on. According to the flyback circuit, the Ids current loop is Vbus via the transformer primary side, then ...

Published on 2018-01-25 09:23 • 2500 views
A detailed analysis of the current flowing from the source of the flyback switching MOSFET
Power management IC categories and global inventory of power management chip manufacturers

1. Texas Instruments (TI, acquired the national semiconductor NS (National Semiconductor) in 2011 ...

Published on 2018-01-18 22:52 • 2511 times read
Power management IC categories and global inventory of power management chip manufacturers
Allegro MicroSystems, LLC ...

LLC announced the launch of a new power management IC ARG82800, which integrates a buck or buck / boost pre-regulator, four LD ...

Published on 2018-01-17 15:35 • 3846 views
Allegro MicroSystems, LLC ...
Buck, boost and buck-boost topology and case sharing

Although the buck converter has pulse current at the input, the inductor-capacitor (LC) filter is located at the output of the converter, and the output current ...

Published on 2018-01-17 08:54 • 2772 views
Buck, boost and buck-boost topology and case sharing
Ask everyone about a power supply problem. A residential building has its own generator. When the load of the building increases in the evening

Published on 2018-01-16 11:40 • 673 views
Ask everyone about a power supply problem. A residential building has its own generator. When the load of the building increases in the evening
How to overcome the EMI problem of power supply during design or application

With the rapid development of microelectronics technology, practical applications have put forward more demanding technical requirements for switching power supplies, not only focusing on high efficiency, high power density, but also to protect ...

Published on 2018-01-12 09:39 • 2283 times read
How to overcome the EMI problem of power supply during design or application
Tongjia launched the latest power solution to obtain Qualcomm QC ...

Tongjia Technology (TAIEX: 3588), which has extensive experience in the field of power management, officially announced its 45W NB ...

Published on 2018-01-10 10:30 • 303 times read
Tongjia launches the latest power solution to obtain Qualcomm QC ...
What will be the impact of Apple's battery replacement program in 2018?

The market is not optimistic about the iPhone X sales. Lyon Securities analyst Nicolas Baratte predicts ...

Published on 2018-01-10 06:28 • 3724 times read
What will be the impact of Apple's battery replacement program in 2018?
Specify the relationship between the voltage value and how to lay copper in orCAD

How to lay copper in OrCAD: Option bar setting, click the expand button to give or enter the network name directly, lay copper: draw a picture in the work area ...

Published on 2018-01-03 09:00 • 2019 reading
Specify the relationship between the voltage value and how to lay copper in orCAD
Teach you to quickly create, design and test IoT products

One of the most severe challenges facing Internet of Things (IoT) applications is that devices need to be semi-customized or even fully customized according to market demand.

Published on 2018-01-03 08:46 • 2177 views
Teach you to quickly create, design and test IoT products
iPhoneX realizes fast charging, the key is data transmission!

Today, I will take friends to tear down a USB-Type-C / Lightning data cable. You must know that Apple's standard charger is unchanged for thousands of years ...

Published on 2017-12-27 07:39 • 2473 times read
iPhoneX realizes fast charging, the key is data transmission!
50 years ago, the battery charger can still be used now?

This charger has been used for 20 years, I hope it can be used for another 20 years. I love the small bracket on the back of it, so you can roll the wire on it. Each...

Published on 2017-12-27 06:27 • 2115 views
50 years ago, the battery charger can still be used now?
Demystifying fast charging, how will these four stages break through

Regarding the charging of the charger, many Xiaobai think that it is enough to connect a fixed voltage and then send current into it. In fact, this is the wrong way, because the charger ...

Published on 2017-12-20 09:20 • 3325 views
Demystifying fast charging, how will these four stages break through
Gesture detection module GS100-N series scheme design

With the rapid development of science and technology, more and more smart products come to us. On a certain day, we can put aside traditional mechanical switches and buttons, just need ...

Published on 2017-12-18 09:33 • 2515 views
Gesture detection module GS100-N series scheme design
How to ensure the EMC performance of the power module when designing?

Presumably everyone is no stranger to power modules, and EMC performance is an important indicator of power modules. When selecting a model, you know how to understand each ...

Published on 2017-12-15 09:43 • 3050 views
How to ensure the EMC performance of the power module when designing?
With its modular design, the power module has obvious advantages in troubleshooting

With its modular design, the power module allows users to minimize the design and development cycle of the product. Its usage is simple, but everyone really uses electricity ...

Published on 2017-12-06 06:44 • 3855 views
With its modular design, the power module has obvious advantages in troubleshooting
A current source is used for the remote signal, why is the starting point not 0mA?

Industry often needs to measure non-electrical physical quantities such as temperature, pressure, wind speed, etc. These usually need to be converted into analog quantities before transmission to the control room or display equipment ...

Published on 2017-12-06 06:34 • 3783 times read
A current source is used for the remote signal, why is the starting point not 0mA?
LTC2978 is capable of multi-function management of up to 8 power supplies ...

Today's high-reliability systems require sophisticated digital power management solutions to sequence, monitor, monitor, and margin regulate a large number of voltage rails. ...

Published on 2017-12-04 06:29 • 200 views
LTC2978 is capable of multi-function management of up to 8 power supplies ...
Calculation of heat dissipation and heat transfer in power management circuit design

Excessive heat generated by high temperature or internal power consumption may change the characteristics of electronic components and cause them to shut down, work outside the specified operating range, or even malfunction. ...

Published on 2017-12-04 01:22 • 202 times read
Calculation of heat dissipation and heat transfer in power management circuit design
To become a stable DC power supply, the primary solution is filtering!

The general DC stabilized power supply uses 220V mains as the power supply, which is sent to the voltage stabilizing circuit after voltage transformation, rectification and filtering to stabilize, and finally becomes stable ...

Published on 2017-11-29 06:45 • 4474 times read
To become a stable DC power supply, the primary solution is filtering!
How to realize the power supply capability of a USB hub with power supply

If R3 uses a 200Ω potentiometer, the generated voltage range is: 1.25V when R3 is 0Ω and short circuit occurs, until R ...

Published on 2017-11-13 09:15 • 2655 views
How to realize the power supply capability of a USB hub with power supply
Battery management system (BMS) failure analysis and 14 common failure cases ...

Battery management system (BATTERY MANAGEMENT SYSTEM), commonly known as battery nanny or battery housekeeper, is a connected car ...

Published on 2017-11-11 08:40 • 4036 views
Battery management system (BMS) failure analysis and 14 common failure cases ...
Switching loss test plays an important role in power supply debugging

The switching loss test of MOSFET / IGBT is a very key part in power supply debugging, but many engineers still measure the switching loss ...

Published on 2017-11-10 08:56 • 1638 times read
Switching loss test plays an important role in power supply debugging
Characteristic test and method of power management IC

Capacitive loads are not easy to drive at high speed. The fundamental reason is that the current charging speed due to voltage changes is only limited by the equivalent series resistance (ESR), and so on ...

Published on 2017-11-10 08:51 • 2166 times read
Characteristic test and method of power management IC
Optimized Design of Noise Common Mode Interference and Differential Mode Interference of Power Line

The electromagnetic disturbance generated by various electrical equipment in the power grid is caused by the propagation along the power line. The noise of the power line is divided into two categories: common mode interference and differential mode interference

Published on 2017-11-09 08:33 • 2479 times read
Optimized Design of Noise Common Mode Interference and Differential Mode Interference of Power Line
Urgent, LM2596 generates -5V voltage simulation failure

Published on 2017-08-21 18:42 • 1037 views
Urgent, LM2596 generates -5V voltage simulation failure
IMX6 uses its dedicated power management chip MMPF0100 to work together and IMX6 becomes hot

Published on 2017-07-09 20:16 • 1353 times read
IMX6 uses its dedicated power management chip MMPF0100 to work together and IMX6 becomes hot
Pay attention to the "Enthusiast Classroom", watch the live broadcast of technical training dry goods, 88 yuan gift package for free. . . [Battery Management-Live Forecast Name]

Published on 2017-05-10 14:34 • 1795 views
Pay attention to the "Enthusiast Classroom", watch the live broadcast of technical training dry goods, 88 yuan gift package for free. . . [Battery Management-Live Forecast Name]
Introduction of 8 common power management IC chips

Published on 2017-02-24 18:37 • 1921 reading
Introduction of 8 common power management IC chips
New fast charging technology decryption, come to [Type-C & fast charging technology forum] to learn with all experts!

Publishe

There are two solutions of our flood light, including Build in driver and Driver on board. Build in driver can be divided into splicing type, with acrylic lens and without acrylic lens, tempered glass front cover and PC front cover.  We are the manufacturer of producing energy saving and waterproof project lamps. There are three color temperatures with cool white, warm white and natural white of flood flights. Our LED Flood Light is the best choice for park, parking lot, garden, building, billboard, park, outdoor basketball court, airport lighting and sports hall etc.

LED Flood Light

Led Security Light,Outdoor Flood Lights,Led Floodlight,Solar Powered Flood Lights

Jiangmen Lika Lighting Electrical Appliances Co., Ltd , https://www.lika-led.com