Multiplier-divider circuit for a PFC controller

Details Multiplier-divider circuit for a PFC controller Multiplier-divider circuit for a PFC controller

2006-06-06

2006-06-06

Patel, Rajnikant B. (Department: 2838)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

Combining of plural signals

C327S356000, C327S360000, C363S089000

Reexamination Certificate

active

07057440

ABSTRACT:
The present invention introduces an integrated analog multiplier-divider circuit. The multiplier-divider block according to the present invention is ideal for use in the power factor correction (PFC) controllers of many switch-mode power supplies. The analog multiplier-divider according to the present invention is built with CMOS devices. Because of this, it has many advantages over prior-art multiplier-dividers. One important advantage is that the die-size and the cost can be reduced. Another important advantage of the multiplier-divider according to the present invention is substantially reduced temperature dependence.

REFERENCES:
patent: 5619405 (1997-04-01), Kammiller et al.
patent: 5644214 (1997-07-01), Lee

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