Wide voltage input and invariable voltage output power supply module

Abstract

The invention relates to a wide voltage input and invariable voltage output power supply module, which comprises a protection circuit, a voltage conversion circuit and an invariable voltage output circuit, wherein the protection circuit is connected with the voltage conversion circuit through a filter circuit, the voltage conversion circuit is directly connected with the invariable voltage outputcircuit; the protection circuit consists of an overcurrent protection circuit and an EMC (Electro Magnetic Compatibility) protection circuit, the overcurrent protection circuit is connected with an input voltage, and is connected with the filter circuit through the EMC protection circuit. The wide voltage input and invariable voltage output power supply module has the advantages of reasonable structure, high reliability, strong practicability, wide voltage input, invariable voltage high-precision output, strong antijamming capability, high isolation voltage and high conversion efficiency, andcan be used under any worse electric environment. The overcurrent protection circuit can protect devices in circuits from being damaged when the input voltage generates overcurrent or short-circuit; by the protection of the EMC circuit, the noise and ripple waves in the input voltage can be reduced, and the antijamming capability is strong.

Description

technical field [0001] The invention relates to a wide-voltage input high-isolation regulated output power supply module, and mainly relates to a power supply module for the application occasions where a power supply that is isolated from the input power supply and needs to be converted and stabilized in a distributed power supply system on a circuit board. . Background technique [0002] At present, there are power modules on the market. Due to their low electrical isolation capability, they generally cannot be used directly. When used, they need the cooperation of peripheral components, and generally cannot realize wide voltage input, low efficiency and reliability, and low isolation voltage. The impact resistance is average, the anti-interference ability is poor, the product is bulky, and it is inconvenient to use. Contents of the invention [0003] The purpose of the present invention is to provide a wide voltage input, stable voltage and high-precision output, and an...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wide voltage input, stable voltage and high-precision output, and anti-interference ability for the above-mentioned problems such as low isolation voltage, low efficiency and reliability, and poor anti-interference ability of the existing power supply module. Wide voltage input and regulated output power module with strong, high isolation voltage and high conversion efficiency

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