Switching power supply
A switching power supply, switching circuit technology, applied in electrical components, output power conversion devices, AC power input into DC power output and other directions, can solve the problem of large feedback control error of switching power supply circuit, achieve accurate reference voltage, reduce Loss and error reduction effect
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[0023] The present invention will be further described below in conjunction with embodiment.
[0024] A switching power supply, such as figure 1 As shown, it includes input module, transformation module, output module and control module. The input terminal of the input module is connected to the mains, and the output terminal is connected to the input terminal of the conversion module; the output terminal of the conversion module is connected to the input terminal of the output module; the output terminal of the output module is the output terminal of voltage and current; the input terminal of the control module It is connected with the output end of the output module, and the output end is connected with the transformation module.
[0025] The input module includes an input filter circuit, a surge suppression circuit and an input rectification circuit. The input end of the input filter circuit is connected with the mains; the output end of the input filter circuit is connec...
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