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U.S. Department of Energy
Office of Scientific and Technical Information

Up-and-down chopper circuit

Patent ·
OSTI ID:5376924

An improved up-and-down chopper circuit is provided which is useful for voltage regulation in a bidirectional dc power system. In the down mode, power is switched from a dc power source to a lower voltage energy storing load while in the up mode stored energy in the load is transferred to the higher voltage source. The system uses Darlington transistor switches in a conventional connection. The improvement relates to circuit additions to eliminate the effects of inter-electrode capacitance inherent with this Darlington transistor switching arrangement. 3 claims.

Assignee:
Dept. of Energy
Patent Number(s):
US 4161023
OSTI ID:
5376924
Country of Publication:
United States
Language:
English

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