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Several Power Module Performance
Publisher£ºadmin¡¡Time£º2012/6/5¡¡ Read£º1762

Module power supply is a power supply, can be directly mounted on printed circuit board. Main features for ASICs, digital signal processors, microprocessors and other digital or analog load power. There are several common power supply: DC-DC power module, AC-DC power modules, SMD surface-mount power supply module. As the advantages of more modular structure, so the module power supply in recent years has been widely used. Especially in recent years due to the rapid development of data services, and distributed power supply system to continue to spread, the power module applications beyond the traditional power. However, in semiconductor technology, high-frequency soft-switching and packaging technology continues to improve and extensive use of the power module's power density increases, higher and higher conversion rates, applications are more simple.

Greater impact on the power modules of several indicators of the following main aspects:
1. Power power P = UI, is the output voltage and output current multiplied by the input voltage divided AC input and DC input. DC output voltage is generally, but there are also AC output.
2. high temperature can cause a power malfunction, because the internal power supply are fine electronic components, at high temperatures may lead to unstable performance
3. Isolation voltage input and output isolation is to carry out the separation on the circuit, the specific role of the following:
(1) The current transformation
(2) In order to prevent interference between input and output
(3) Input and output signal characteristics of the circuit that much difference, such as strong with the weak electrical signal control device

Package size with pin, patch, and spiral.

Output a single output, dual output and multiple outputs. Power modules can be directly mounted on printed circuit board power supply, which is characterized as application specific integrated circuit (ASIC), digital signal processor (DSP), microprocessors, memory, field programmable gate array (FPGA ) and other digital or analog load power. In general, these modules are called point of load (POL) power supply system or the point of use power supply system (PUPS). As the many advantages of modular structure, so the module power is widely used in switching equipment, access equipment, mobile communications, microwave communication and optical transmission, routers and other communications and automotive electronics, aerospace and so on.

 
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