Output voltage circuit with PWM feedback regulation

The utility model discloses an output voltage circuit with PWM feedback regulation, and the circuit comprises a processing chip, a PWM modulation unit, a feedback unit, an input filtering unit, an enabling unit, a rectification unit, and an output filtering unit. The PWM modulation unit is used for...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GAO LUFANG, LIN YANHAO, LIU JUAN, YANG MING, YANG ZHENTING, FU SHENG, ZHANG WEI, SU MURONG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model discloses an output voltage circuit with PWM feedback regulation, and the circuit comprises a processing chip, a PWM modulation unit, a feedback unit, an input filtering unit, an enabling unit, a rectification unit, and an output filtering unit. The PWM modulation unit is used for receiving PWM pulse signal input and level signal input; the processing chip is used for adjusting the output voltage of an external inductance pin of the processing chip according to a level signal output by the feedback unit, the input filtering unit is used for receiving the level signal output by the power supply signal, and the enabling unit is used for outputting the level signal output by the power supply signal to an enabling pin of the processing chip. The rectifying unit is used for receiving a level signal output by an external inductance pin of the processing chip, and the output filtering unit is used for receiving the level signal output by the rectifying unit. The circuit has the beneficial effects t