Switched mode power supply

Details Switched mode power supply Switched mode power supply

1997-12-17

1999-10-05

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

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

323285, 323222, 363 89, G05F 110, G05F 140, H02M 542

Patent

active

059630248

ABSTRACT:
The present invention concerns a switched mode power supply with a timed switching regulator (1), whereby an electronic switching component (T.sub.1) is periodically switched on and off in such a particular pulse duty ratio, that an output control voltage (U.sub.B) is produced from a rectified input voltage (U.sub.E) across a storage circuit (2) with a smoothing choke (L), an intermediate circuit memory backup capacitor (C.sub.Z), and a free-wheeling diode (D.sub.F). The switching component (T.sub.1) is composed of a transistor, namely an FET or an IGBT, whose base or gate (G) is preconnected to a special control circuit (4) in such a way that an increased trigger current briefly flows in the trigger circuit for gating, and a substantially smaller holding current subsequently flows in the gated state, respectively.

REFERENCES:
patent: 4994954 (1991-02-01), Katz et al.
patent: 5301095 (1994-04-01), Teramoto et al.
patent: 5424932 (1995-06-01), Inou et al.
patent: 5574357 (1996-11-01), Otake et al.
patent: 5689178 (1997-11-01), Otake
patent: 5726871 (1998-03-01), Choi
patent: 5777866 (1998-07-01), Jacobs et al.

Affiliated with

Also associated with

Rating

Switched mode power supply does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switched mode power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switched mode power supply will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1175540