Power factor correction circuit and method of varying...

Details Power factor correction circuit and method of varying... Power factor correction circuit and method of varying...

2006-10-17

2006-10-17

Sterrett, Jeffrey (Department: 2838)

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

C323S207000, C323S222000

Reexamination Certificate

active

07123494

ABSTRACT:
A power factor correction (PFC) circuit (10) includes a pulse width modulator (31) operating in response to a clock signal (CLK) for switching a coil current (ICOIL) over a charging period (TCHG) to correct a power factor at a node (32). The coil current discharges over a discharging period (TDSCHG) to develop an output voltage (VOUT) at an output (30). An oscillator (35) generates the clock signal to have a clock period (TCLK) longer than the sum of the charging and discharging periods, thereby operating in a discontinuous mode, and has an input (39) for sensing the input signal to modify the clock period.

REFERENCES:
patent: 4683529 (1987-07-01), Bucher, II
patent: 4942509 (1990-07-01), Shires et al.
patent: 5180964 (1993-01-01), Ewing
patent: 5442539 (1995-08-01), Cuk et al.
patent: 5682306 (1997-10-01), Jansen
patent: 5742151 (1998-04-01), Hwang
patent: 5793624 (1998-08-01), Couture et al.
patent: 5886891 (1999-03-01), Jiang et al.
patent: 6469917 (2002-10-01), Ben-Yaakov
patent: 6728121 (2004-04-01), Ben-Yaakov et al.
“Analysis and Experimental Evaluation of Single-Switch Fast-Response Switching Regulators with Unity Power Factor”, K. W. Siu et al., IEEE Transactions on Industry Applications, vol. 33, No. 5, Sep./Oct. 1997, pp. 1260-1266.

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