Up-and-down chopper circuit

Patent · Mon Jan 01 00:00:00 EST 1979

OSTI ID:863382

Goffeau, Jacques R ^[1]

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1. Hermosa Beach, CA

An improved Up-and-Down Chopper Circuit is provided which is useful for voltage regulation in a bi-directional 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.

• DOE Contract Number: E(40-1)-2908
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4161023
• OSTI ID: 863382
• Country of Publication: United States
• Language: English

Related Subjects

up-and-down
chopper
circuit
improved
provided
useful
voltage
regulation
bi-directional
dc
power
mode
switched
source
energy
storing
load
stored
transferred
darlington
transistor
switches
conventional
connection
improvement
relates
additions
eliminate
effects
inter-electrode
capacitance
inherent
switching
arrangement
voltage source
dc power
power source
stored energy
voltage regulation
energy storing
chopper circuit
darlington transistor
up-and-down chopper
voltage energy
transistor switch
/363/323/327/