Charge pump power factor correction circuit for power supply for

Details Charge pump power factor correction circuit for power supply for Charge pump power factor correction circuit for power supply for

1997-01-29

1999-09-28

Wong, Don

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315307, 315DIG2, 363132, H05B 3700

Patent

active

059594101

ABSTRACT:
An electric power source device includes a power converting circuit and a load circuit (LD) for receiving an output from the power converting circuit. The power converting circuit includes a rectifier element (DB) for rectifying an input from an alternating current source (AC), a smoothing capacitor (Ce) for smoothing an output from the rectifier element (DB) with a direct current, and switching elements (Q1, Q2) for generating high frequency voltage and current in response to receipt of a voltage of the smoothing capacitor (Ce). The power converting circuit makes use of a current source type charge pump (CSCP) for capturing an input current from the alternating current source (AC) by the use of one of high frequency current loops generated in the circuit as a result of switching on and off of the switching elements (Q1, Q2), and a voltage source type charge pump (VSCP) for capturing the input current from the alternating current source (AC) by the use of one of high frequency voltage nodes generated in the circuit as a result of the switching on and off of the switching elements (Q1, Q2).

REFERENCES:
patent: 4564897 (1986-01-01), Okamoto
patent: 5001400 (1991-03-01), Nilssen
patent: 5410221 (1995-04-01), Mattas et al.
patent: 5434477 (1995-07-01), Crouse et al.
patent: 5459651 (1995-10-01), Maehara
patent: 5488269 (1996-01-01), El-Hamamsy

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