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

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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

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 ...

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, ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

[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 ...

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.

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 ...

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 ...

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 ...

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

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

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

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. ...

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 ...

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 ...

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 ...

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 ...

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 ...

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...

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 ...

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 ...

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 ...

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 ...

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.

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 ...

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

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 ...

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 ...

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

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 ...

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 ...

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 ...

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

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 ...

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

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...

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 ...

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 ...

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 ...

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

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 ...

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 ...

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

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 ...

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 ...

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

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

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 ...

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 ...

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 ...

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 ...

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 ...

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

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

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

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 ...

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

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

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 ...

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 ...

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

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

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 ...

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.

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 ...

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...

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 ...

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 ...

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 ...

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 ...

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 ...

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

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. ...

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 ...

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

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

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

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 ...

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