Driving apparatus for an inductive load

Details Driving apparatus for an inductive load Driving apparatus for an inductive load

1998-03-13

1999-11-02

Berhane, Adolf Deneke

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

G05F 144

Patent

active

059777567

ABSTRACT:
A first switching element opens or closes a power supply route of an inductive load in accordance with a first driving signal. A clamping element prevents a voltage ot the power supply route from exceeding a first clamp voltage when the power supply route is opened. A second switching element opens or closes the current flow route, provided in parallel with the power supply route, in response to a second driving signal. A rectifying means is responsive to the second switching element to change the clamp voltage to a second clamp voltage when the first switching element is turned off. The second switching element is constituted by a MOSFET. A charging element charges a capacitor of MOSFET.

REFERENCES:
patent: 4429359 (1984-01-01), Anderson
patent: 5420532 (1995-05-01), Teggatz et al.
patent: 5519311 (1996-05-01), Widmayer
"Multifunction Injection Interface", Oct. 1991, pp. 1/11 to 11/11.

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