Overview of the Power Module

As we all kown, power module is a power supply that can be directly attached to a printed circuit board. Its characteristic is that it can supply power for ASIC, digital signal processor (DSP), microprocessor, memory, field programmable gate array (FPGA) and other digital or analog loads.But before that the power of this module are designed by electronic engineers to meet the demand of the power of the load, so the general overall design together with its original board, also because of considering the overall power supply demand, so only the designer know the designed power circuit of the power supply voltage conversion. Even if a slight change of load will effect the overall design,This kind of rigid design is not only time consuming, but also easy to destroy the original design circuit.In this way, the power supply from the beginning with the overall layout design, turn intoto the present two types of design respectively, one is naked PCBA and another one is modularized & standardlized power supply module with cover.

Naked PCBA have a slight advantage in terms of heat dissipation, while modularized & standardlized power supply module with cover can provide better protection for power lines and convenient installation with PCB/pins. Generally speaking, these two types of modules are called Point-of-Load (POL) power supply systems or Point-of-Use (PUPS) power supply systems.Due to the many advantages of modular structure, we hereby to list 5 points below for your reference:

1. Simple design

At present, there are a wide variety of modules on the market, such as AC-DC, DC-DC, high voltage and so on. You only need to choose a suitable power module with a small amount of discrete components to use.High integrated circuit inside the module makes the design more compact. Suppliers can also provide professional technical support and system solutions. The biggest difference with discrete is that manufacturers can provide important data such as model, peripheral circuit, module parameter curve and so on.

2. Save your cost and time

The power module has a variety of input and output choices, and can be added repeatedly or cross to form a building block combination power supply, so as to achieve multiple input and output.Compared with separate, debugging is more simple and safe, which greatly simplifies the design and application and shortens the development time.

3. High reliability 

Modules generally adopt automatic process to ensure quality and reliability.Power module (which was reserched and delveloped by a professional RD team) is in accordance with strict standards to select components. Hence it has passed a perfect reliability test and batch production test. Separate solutions are more difficult to test deeply.

4.High density, Small volume

Modules generally use multilayer PCB back aluminum substrate, high power density, small volume, save the space.

5.Easy to maintain, flexible on design

In production applications, if there is a failure, just replace another module can work normally.If you need to change the scheme in the middle of the design, you only need to change the module, without modifying the overall power supply circuit.

Especially in recent years due to the rapid development of data services and the continuous promotion of distributed power supply system, the increase of module power supply has exceeded the primary power supply.The module power supply has isolation function -the output and input can be electrically separated, with strong anti-interference ability and built-in protection function, which is easy to be integrated. With the extensive use of semiconductor technology, packaging technology and high frequency soft switch, the power density of module power supply becomes larger and larger, the conversion efficiency becomes higher and higher, and the application becomes simpler and simpler.Therefore, the two modules are widely used in smart electricity meters, instruments, electric vehicle charging piles, smart home, scientific research experiments, switching equipment, access equipment, rail transit, mobile communications, automotive electronics, aerospace and many other fields.

If you want to know more about power modules and other electrical knowledge, please continue to pay attention to IVY,Our website is www.ivy-metering.com.