Circuit and method for supplying an electrical a.c. load

Details Circuit and method for supplying an electrical a.c. load Circuit and method for supplying an electrical a.c. load

2006-03-21

2006-03-21

Nguyen, Matthew V. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

07015679

ABSTRACT:
A method and circuit for supplying a variable voltage to an electrical a.c. load (R, L), comprising: a control signal input for receiving a switching control signal to control load output voltage; first and second circuit output terminals (ACL1, ACL2) for connection to the load; first switch means (S1) having an input coupled to the control signal input and having an output coupled between one (ACL1) of the circuit output terminals (ACL1) and a first a.c. line terminal (AC1); second switch means (S2) having an input coupled to the first switch means and having an output coupled between the first and second circuit output terminals (ACL1, ACL2) and coupled to a second a.c. line terminal (AC2); and providing a switching control signal to the control signal input to switch the first and second switch means complementarily. The switch means may each comprise a power transistor (Q1; Q2) and a bridge rectifier (B1; B2).

REFERENCES:
patent: 5635826 (1997-06-01), Sugawara
patent: 6194881 (2001-02-01), Parker et al.
patent: 6266256 (2001-07-01), Lehnert et al.
patent: 6483730 (2002-11-01), Johnson, Jr.
patent: 6870132 (2005-03-01), Stava
patent: 1 017 156 (2000-07-01), None
patent: 1 304 792 (2003-04-01), None
patent: 2 660 498 (1991-10-01), None
patent: 2 267 788 (1993-12-01), None
UK Foreign Search report, date of search May 6, 2003.

Affiliated with

Also associated with

Rating

Circuit and method for supplying an electrical a.c. load does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit and method for supplying an electrical a.c. load, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit and method for supplying an electrical a.c. load will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3584521