25-12-2013 дата публикации
Номер: CN103475197A
Принадлежит:
The invention discloses a digital switching power supply including a feedback element. The digital switching power supply comprises an input unit, an input rectification filter unit, a power factor correcting unit, a drive protection unit, an output rectification filter unit, an output unit, a sampling unit, an analog-digital conversion unit, a comparator, a control unit and a reference value setting unit. The input unit is connected with the first input end of the drive protection unit through the input rectification filter unit and the power factor correcting unit in sequence, the output end of the drive protection unit is connected with the first input end of the comparator through the output rectification filter unit, the output unit, the sampling unit and the analog-digital conversion unit in sequence, the reference value setting unit is connected with the second input end of the comparator, and the output end of the comparator is connected with the second input end of the drive protection ...
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