BRIDGELESS PFC CONVERTER WITH AVERAGE CURRENT MODE CONTROL

PROBLEM TO BE SOLVED: To provide a bridgeless PFC converter with an average current mode control, capable of detecting input current without increasing production cost.SOLUTION: During inrush current is limited in a bridgeless PFC converter, a phase information of AC power to be input is detected ba...

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Bibliographische Detailangaben
Hauptverfasser:	ITO AKIHIRO, ASADA TETSURO, XIAO MING, TANAHASHI MASAO
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 CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a bridgeless PFC converter with an average current mode control, capable of detecting input current without increasing production cost.SOLUTION: During inrush current is limited in a bridgeless PFC converter, a phase information of AC power to be input is detected based on input voltage, and during a limitation of the inrush current is canceled and PFC boost control is implemented, current flowing from an output edge of a ground side to a ground side of upper and lower arms, is detected, the input current is calculated based on the current to obtain the input current that is a parameter required for the PFC boost control with the average current mode without using an expensive hall current sensor and high breakdown voltage differential amplifier.