Wide voltage input and invariable voltage output power supply module
A technology of wide voltage input and regulated output, applied in output power conversion devices, electrical components, emergency protection circuit devices, etc., can solve the problems of low isolation voltage, low efficiency and reliability, and poor anti-interference ability. Achieve the effect of high isolation voltage, strong practicability and strong anti-interference ability
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[0015] Specific implementation mode of the present invention one: as figure 1 with 2 As shown, a wide voltage input, regulated output power module, the power module includes a protection circuit, a voltage conversion circuit and a regulated output circuit, the protection circuit is connected to the voltage conversion circuit through a filter circuit, and the voltage conversion circuit directly It is connected with the voltage-stabilizing output circuit; the protection circuit includes an overcurrent protection circuit and an EMC protection circuit, the overcurrent protection circuit is connected with the input voltage, and is connected with the filter circuit through the EMC protection circuit; the EMC protection circuit is composed of a capacitor C1 , C2, C3, C4, resistor RV1, inductor L1 and diodes D1, D2, D3, wherein, capacitor C2 is connected in parallel with capacitor C1 after being connected in series with resistor RV1, then connected in parallel with capacitor C3, conne...
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