Current sharing circuit

Details Current sharing circuit Current sharing circuit

1986-04-14

1987-09-15

Shoop, Jr., William M.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Running-speed control

307242, 307254, 307296R, 323272, H03K 1756

Patent

active

046942270

ABSTRACT:
A controller for a wheelchair motor or the like including two power transistors each having a base and a collector-emitter path, the collector-emitter paths being connected in parallel. At least one oscillator and a flip-flop are provided to supply pulses alternately to the transistor bases so that the transistors are never turned on simultaneously. In another system, two or more transistors are connected in parallel and are gated on in digital succession responsive to the outputs of a ring counter.

REFERENCES:
patent: 3421025 (1969-01-01), Mitchell et al.
patent: 3633051 (1972-01-01), Press
patent: 4489256 (1984-12-01), Brodsky
patent: 4616142 (1986-10-01), Upadhyay et al.

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