Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1993-08-10
1995-11-21
Wong, Peter S.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 97, 363 41, H02M 3335
Patent
active
054693497
ABSTRACT:
A power supply circuit for generating a stabilized power supply generally comprises a series arrangement of a primary winding of a transformer and a switch. The switch is controlled by a control circuit, an input of which receives a signal related to the output voltage of the power supply circuit. The control circuit determines the duty cycle of the switch. Dependent on the power consumption of the lead connected to the output of the power supply circuit, the duty cycle is either increased or decreased. The duty cycle has a given minimum value which is caused by the inertia of the switch upon switching on and switching off. The minimum duty cycle may be reached, inter alia, when the power supply circuit works in an apparatus using a standby mode. With reference to the power to be supplied to the lead and/or with reference to the duty cycle, the power supply circuit according to the invention determines the moment when the frequency of the control signal to be generated by the control circuit is switched to another fixed frequency.
REFERENCES:
patent: 4791544 (1988-12-01), Gautherin et al.
Blocker Edward
U.S. Philips Corporation
Wong Peter S.
LandOfFree
Power supply circuit and control circuit for use in a power supp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power supply circuit and control circuit for use in a power supp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply circuit and control circuit for use in a power supp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1142421