Switching power supply circuit having constant output for a wide

Details Switching power supply circuit having constant output for a wide Switching power supply circuit having constant output for a wide

1982-08-27

1983-06-21

Shoop, William M.

Electric power conversion systems

Current conversion

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

363 56, 363 97, 363142, H02M 3335

Patent

active

043897029

ABSTRACT:
A switching power supply is disclosed using a single transistor circuit which provides a constant output voltage for a range of input voltages extending from a nominal 115 volt power supply to a nominal 220/240 volt power supply without requiring a change in the circuit configuration throughout the range of input voltages. The circuit is disclosed in connection with a single transistor forward converter circuit, in which the transformer winding of the converter circuit is provided with a uni-directional clamp to prevent the transformer voltage of a given polarity from exceeding the clamping voltage magnitude. By clamping one polarity of the transformer voltage which is in series with the switching transistor, the maximum peak-to-peak voltage on the transistor is reduced from that which would be produced in the absence of clamping and enables the use of a power MOSFET transistor for the circuit. The clamping circuit is disclosed as a zener clamp and as a circuit including a parallel resistor and capacitor and series diode.

REFERENCES:
patent: 3621363 (1971-11-01), Ginnman et al.
patent: 3697852 (1972-10-01), Gerbitz
patent: 3963973 (1976-06-01), Vermolen
patent: 4004209 (1977-01-01), Lawson, Jr.
patent: 4016482 (1977-04-01), Cielo et al.
patent: 4187536 (1980-02-01), Govaert et al.

Affiliated with

Also associated with

Rating

Switching power supply circuit having constant output for a wide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switching power supply circuit having constant output for a wide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching power supply circuit having constant output for a wide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2113106