Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-10-03
2006-10-03
Patel, Rajnikant B. (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S222000, C363S021090
Reexamination Certificate
active
07116087
ABSTRACT:
The provided method and control circuit are employed to alternately control the dual boost PFC circuits. The control circuit for alternately controlling parallel-connected first and second boost circuits of a dual boost PFC circuit to achieve a current-sharing of the first and the second boost circuits includes: a first control circuit having a first current control loop for employing an output voltage of the PFC circuit, a feed-forward voltage, and an input reference voltage to generate a current reference, and sending the current reference to an input terminal of the first current control loop to generate a first PWM signal to drive the first boost circuit, and a second control circuit having a second current control loop for receiving the current reference through an input terminal of the second current control loop to generate a second PWM signal to drive the second boost circuit.
REFERENCES:
patent: 5905369 (1999-05-01), Ishii et al.
patent: 6009000 (1999-12-01), Siri
patent: 1353497 (2002-06-01), None
Balogh et al., Power-Factor Correction with Interleaved Boost Converters in Continuous-Inductor-Current Mode, 1993, Proceedings of APEC, pp. 168-174.
Qiu Aibin
Ying Jianping
Zeng Jianhong
Zhang Qingyou
Delta Electronics , Inc.
Patel Rajnikant B.
Volpe and Koenig P.C.
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