Power factor correction device

The invention relates to a power factor correction device. An analog and digital conversion module is used for respectively converting one output signal, one sensing signal and one input signal of a power converter to generate a first digital signal, a second digital signal and a third digital signa...

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Bibliographische Detailangaben
Hauptverfasser:	LAI ZHITING, YANG HUICONG, ZHANG ZHAOJU, CHEN ZHILIANG, HUANG QINGHUO, GUAN YOUAN
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The invention relates to a power factor correction device. An analog and digital conversion module is used for respectively converting one output signal, one sensing signal and one input signal of a power converter to generate a first digital signal, a second digital signal and a third digital signal, a feedback circuit is coupled with the analog and digital conversion module and generates a feedback signal according to the first digital signal, an operational circuit is coupled with the feedback circuit and receives and operates the feedback signal, the second digital signal and the third digital signal to generate a timing signal, a counting circuit is coupled with the operational circuit and generates a switching signal according to one triggering signal and the timing signal to switch a switch of the power converter. Therefore, the power factor correction device can be digitalized so that the stability of a system is increased, and the power factor correction device can be effectively digitalized so that the complexity of a circuit is reduced.