Apparatus for controlling a power factor correction...

Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...

Reexamination Certificate

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C323S222000, C323S284000

Reexamination Certificate

active

07102341

ABSTRACT:
An apparatus for controlling output signals at an output locus of a power converting device has a rectifier coupled to receive an input signal and present a rectified input signal for switching connection with one of a first and a second network. The first network includes the rectifier. The second network includes part of the first network and the output locus. The networks establish a return current to the rectifier. The apparatus includes: (a) a current indicating unit coupled with the output locus for combining an extant output signal with a time-integrated signal to present a calculated current signal; and (b) a comparing unit coupled with the first network and the current indicating unit for receiving the return current. The comparing unit drives the switching connection when the calculated current signal and the return current have a predetermined relationship.

REFERENCES:
patent: 5278490 (1994-01-01), Smedley
patent: 6249108 (2001-06-01), Smedley et al.
patent: 6781352 (2004-08-01), Athari et al.
patent: 2003/0222633 (2003-12-01), Hwang
“AND8124/D 90W, Universal Input, Single Stage, PFC Converter”; Semiconductor Components Industries, LLC, 2003; Dec. 2003—Rev. 4; Publication Order No. AND8124/D; http://onsemi.com.
“AND8147/D An Innovative Approach to Achieving Single Stage PFC and Step-Down Conversion for Distributive Systems”; Semiconductor Components Industries, LLC, 2004; Feb. 2004—Rev. 0; Publication Order No. AND8147/D; http://onsemi.com.

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