Inductive load driver circuit with shared flyback protection

Details Inductive load driver circuit with shared flyback protection Inductive load driver circuit with shared flyback protection

1996-08-02

1998-08-11

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307116, 361152, 361154, 327108, 327110, 327180, 327329, H02H 300

Patent

active

057931275

ABSTRACT:
An inductive load driver circuit with shared flyback protection includes a first transistor (209) which drives a first load (229), and a second transistor (231) drives a second load (251). A first clamp voltage steering diode (217) is coupled between an input terminal (207) of the first transistor (209) and a zener diode (203), and a second clamp voltage steering diode (239) coupled between an input terminal (233) of the second transistor (231) and the zener diode (203). A power supply terminal (201) is coupled to the zener diode (203).

REFERENCES:
patent: 3947776 (1976-03-01), Stevens et al.
patent: 4234903 (1980-11-01), Harper
patent: 4400756 (1983-08-01), Cave et al.
patent: 5047662 (1991-09-01), Edwards
patent: 5523632 (1996-06-01), Seragnoli

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