Inductive load driving amplifier

Details Inductive load driving amplifier Inductive load driving amplifier

1977-04-15

1978-06-20

Mullins, James B.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307270, 361111, H03K 1760

Patent

active

040964000

ABSTRACT:
An inductive load driving amplifier is disclosed which includes two serially connected transistors, with Zener diodes limiting the collector-emitter voltage of the one and diverting the collector-base current of the other when the first one switches off. The driver is implemented as an integrated circuit. This collector isolation constitutes a high voltage Zener diode which contributes to limit the collector voltages. The combination of these features prevents the device from being exposed to second breakdown when switching highly inductive loads (e.g. several Henrys under 50V), thereby avoiding the harmful effects of breakdowns during switching.

REFERENCES:
patent: 3112431 (1963-11-01), Pederson
patent: 3872327 (1975-03-01), Rudert et al.
patent: 3896317 (1975-07-01), Alcorn et al.

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