Temperature stable circuit for controlled current discharge duri

Details Temperature stable circuit for controlled current discharge duri Temperature stable circuit for controlled current discharge duri

1994-02-23

1996-11-19

Nelms, David C.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

327378, 327389, 327427, 327434, 323282, 323284, H03K 300, H03K 1716, H03K 17687, G05F 140

Patent

active

055766480

ABSTRACT:
A circuit for controlled discharge of energy stored in an inductive load, comprising an active semiconductor device (T) connected serially with the inductive load (L) between first and second terminals of a voltage supply source and having a control terminal for connection to a driver circuit (C), and a control circuit (R1, R2, COMP) connected between the inductive load and said control terminal. The control circuit comprises a voltage divider (R1, R2) connected between the inductive load (L) and the first terminal of the voltage supply source, and a comparator (COMP) having first and second input terminals respectively connected to the voltage divider and to a voltage reference and an output terminal which is coupled to the control terminal of the active element (T).

REFERENCES:
patent: 4287436 (1981-09-01), Tezuka et al.
patent: 4860152 (1989-08-01), Osborn
patent: 4882532 (1989-11-01), Gariboldi et al.
patent: 4967309 (1990-10-01), Hoffman

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