High-speed switching circuit and automotive accessory...

Details High-speed switching circuit and automotive accessory... High-speed switching circuit and automotive accessory...

2005-04-05

2005-04-05

DeBeradinis, Robert L. (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Switch actuation

C307S125000, C307S131000, C307S009100, C307S010100, C307S412000

Reexamination Certificate

active

06876104

ABSTRACT:
A high-speed switching circuit with a low or zero inductance shunt resistor is constructed using a trace resistor having parallel overlying trace portions on opposite plane faces of a printed circuit board. The resulting shunt resistor is used in combination with a detector to input data to a microcontroller which controls an automotive load device such as a blower motor. The traces which form the resistor may be extended by horizontal or vertical zig-zag folding or a combination of the two.

REFERENCES:
patent: 4070641 (1978-01-01), Khalid
patent: 5457364 (1995-10-01), Bilotti et al.
patent: 5612660 (1997-03-01), Takimoto
patent: 5914545 (1999-06-01), Pollersbeck
patent: 6011416 (2000-01-01), Mizuno et al.
patent: 6031445 (2000-02-01), Marty et al.
patent: 6194990 (2001-02-01), Lee et al.

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