Title:
APPARATUS AND METHOD FOR GENERATING AN OFFSET VOLTAGE FOR ANGULAR POSITION CACULATIONS
Document Type and Number:
WIPO Patent Application WO2004008616
Kind Code:
A3
Abstract:
An apparatus and method thereof for generating an offset voltage utilized in generating angular position estimates is disclosed. A first bridge circuit comprising a first plurality of resistors is generally arranged in a bridge configuration, wherein the first plurality of resistors are coupled to a first amplifier, such that a first voltage having a sinusoidal component thereof is generated at an output of the first amplifier. A second bridge circuit comprising a second plurality of resistors can also be arranged in a bridge configuration, wherein the second plurality of resistors are coupled to a second amplifier, such that a second voltage having a cosine component thereof is generated at an output of the second amplifier. Additionally, an offset voltage amplifier circuit is generally coupled to the first bridge circuit and the second bridge circuit. The offset voltage amplifier circuit can be further comprised of at least one amplifier coupled to a node wherein at least two resistors are also coupled, such that the offset voltage amplifier circuit generates an offest voltage that is utilized to generate angular position estimations.
Inventors:
KIRKPATRICK RICHARD A
Application Number:
PCT/US2003/022699
Publication Date:
April 01, 2004
Filing Date:
July 16, 2003
Export Citation:
Assignee:
HONEYWELL INT INC (US)
International Classes:
G01D3/02; G01D5/14; G01D5/16; (IPC1-7): G01D5/16; G01D3/02
Domestic Patent References:
| WO2001088423A1 | 2001-11-22 |
Foreign References:
| US6304074B1 | 2001-10-16 | |||
| US5430375A | 1995-07-04 | |||
| DE10137294A1 | 2002-03-14 |
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