Control circuits for electrically driven vehicles

Details Control circuits for electrically driven vehicles Control circuits for electrically driven vehicles

1974-06-05

1976-03-16

Dobeck, Benjamin

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318139, 318345, H02P 516

Patent

active

039449009

ABSTRACT:
In a control circuit for an electrically driven vehicle, there is a main thyristor in series with a traction motor and a commutating thyristor for turning the main thyristor off. Firing pulses for the thyristors are provided by an operational amplifier having two states in which it fires the main thyristor and commutating thyristor respectively, and delay means operates when the main thyristor is fired to drive the operational amplifier to its other state after a predetermined delay.

REFERENCES:
patent: 3497786 (1970-02-01), Lombardo
patent: 3624475 (1971-11-01), Smith
patent: 3739198 (1973-06-01), Clements
patent: 3761793 (1973-09-01), Naito

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