Charge transfer load sensor

Details Charge transfer load sensor Charge transfer load sensor

1998-01-27

2000-08-15

Paladini, Albert W.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

180273, 280734, 307121, 340436, 340666, 361179, 3645284, 701 45, B60R 2132

Patent

active

061041009

ABSTRACT:
A charge transfer load sensor. A first and second electrode are disposed a fixed distance apart, and a third electrode is disposed between the first and second electrodes. The third electrode is grounded and its position between the first and second electrodes varies in response to an applied force. A switch arrangement applies a predetermined voltage level to the first electrode and couples the second electrode to ground during a first predetermined timing interval. During a second predetermined timing interval, the first electrode is coupled to the second electrode to transfer the charge of a first capacitor formed by the first and third electrodes to a second capacitor formed by the second and third electrodes. An output port coupled to the second electrode provides an output voltage as a function of the applied force.

REFERENCES:
patent: 5232243 (1993-08-01), Blackburn et al.
patent: 5506454 (1996-04-01), Hanzawa et al.
patent: 5869751 (1999-02-01), Bonin
patent: 5900592 (1999-05-01), Sohns et al.
patent: 5957491 (1999-09-01), Cech et al.

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