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Title: Electronic switching power supply

Abstract

An electronic switching power supply for supplying power to an electrical load from a variable voltage level AC or DC voltage source having first and second terminals, the power supply including a transformer having a primary coil and a secondary coil, a first terminal of the secondary coil being connected to the electrical load, a first transistor connected in series with the primary coil, a first diode connected in series with the secondary coil and the electrical load, a first capacitor connected between the base of the first transistor and a second terminal of the secondary coil, a second transistor, the collector-emitter line of which is connected across the voltage source, a first resistor connected between the first terminal of the secondary coil and the collector of the second transistor, a second resistor connected between the first terminal of the secondary coil and the emitter of the first transistor, and a discharge circuit connected between the first capacitor and the electrical load, whereby the first capacitor is electrically charged during a conducting phase of the first transistor, and during a subsequent blocking phase of the first transistor, the electrical load receives the charge built up in the first capacitor duringmore » the preceding conducting phase.« less

Inventors:
;
Publication Date:
OSTI Identifier:
6498196
Patent Number(s):
US 4523139
Assignee:
Braun Aktiengesellschaft (Germany, Federal Republic Of)
Resource Type:
Patent
Resource Relation:
Patent Priority Date: Priority date 11 May 1983, Germany, Federal Republic of (F.R. Germany); Other Information: PAT-APPL-493460
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; 42 ENGINEERING; POWER SUPPLIES; TRANSISTOR SWITCHING CIRCUITS; CAPACITORS; ELECTRIC COILS; ELECTRIC POTENTIAL; SEMICONDUCTOR DIODES; TRANSFORMERS; TRANSISTORS; ELECTRICAL EQUIPMENT; ELECTRONIC CIRCUITS; ELECTRONIC EQUIPMENT; EQUIPMENT; SEMICONDUCTOR DEVICES; SWITCHING CIRCUITS; 200104* - Fossil-Fueled Power Plants- Components; 420800 - Engineering- Electronic Circuits & Devices- (-1989)

Citation Formats

Schwarz, G, and Bergk, G. Electronic switching power supply. United States: N. p., 1985. Web.
Schwarz, G, & Bergk, G. Electronic switching power supply. United States.
Schwarz, G, and Bergk, G. Tue . "Electronic switching power supply". United States.
@article{osti_6498196,
title = {Electronic switching power supply},
author = {Schwarz, G and Bergk, G},
abstractNote = {An electronic switching power supply for supplying power to an electrical load from a variable voltage level AC or DC voltage source having first and second terminals, the power supply including a transformer having a primary coil and a secondary coil, a first terminal of the secondary coil being connected to the electrical load, a first transistor connected in series with the primary coil, a first diode connected in series with the secondary coil and the electrical load, a first capacitor connected between the base of the first transistor and a second terminal of the secondary coil, a second transistor, the collector-emitter line of which is connected across the voltage source, a first resistor connected between the first terminal of the secondary coil and the collector of the second transistor, a second resistor connected between the first terminal of the secondary coil and the emitter of the first transistor, and a discharge circuit connected between the first capacitor and the electrical load, whereby the first capacitor is electrically charged during a conducting phase of the first transistor, and during a subsequent blocking phase of the first transistor, the electrical load receives the charge built up in the first capacitor during the preceding conducting phase.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {6}
}