Self-oscillation type switching power supply

Details Self-oscillation type switching power supply Self-oscillation type switching power supply

1998-10-13

2000-08-08

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, H02M 3335

Patent

active

061011037

ABSTRACT:
A self-oscillation type switching power supply comprises a transformer having a primary winding, a secondary winding, a feedback winding, and a control winding as necessary, a switching transistor interrupting a current in said primary winding, a control transistor controlling a positive feedback signal from said feedback winding to the switching transistor, and a time constant circuit charged by a starting voltage of said feedback winding or said control winding with a predetermined time constant and further applying a control voltage to said control transistor. The self-oscillation type switching power supply further comprises an impedance circuit which blocks a reverse bias from said feedback winding or said control winding to said control transistor, disposed between a control voltage input block to said control transistor and said time constant circuit.

REFERENCES:
patent: 4443838 (1984-04-01), Yamada
patent: 4862338 (1989-08-01), Tanaka
patent: 5638262 (1997-06-01), Brown

Affiliated with

Also associated with

Rating

Self-oscillation type switching 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 Self-oscillation type switching power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-oscillation type switching power supply will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1156393