Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1986-11-21
1987-10-06
Miller, Stanley D.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
357 27, 338 32H, 323368, 324251, H03K 1790, H01L 4300, G01R 3306, H03H 100
Patent
active
046985220
ABSTRACT:
A Hall device is formed from a generally rectangular body of material exhibiting the Hall effect, with two excitation electrodes disposed along opposite edges of the device. Two Hall output voltage electrodes are disposed along one of the remaining edges of the main body and at least one additional output electrode is disposed on the edge of the main body opposite the first pair of electrodes. At least two of the output electrodes are offset from a centerline drawn through the electrical midpoint of the main body. By deliberately offsetting the Hall voltage output electrodes from the centerline the first and second order voltage offsets due to inhomogeneities of the Hall material and mask misalignment are eliminated or easily compensated.
REFERENCES:
patent: 3348184 (1967-10-01), Halla
patent: 4398342 (1983-08-01), Pitt et al.
Collins et al., "Elimination of DC Offset Potential of Hall Effect Devices", vol. 12, No. 12, May 1970, p. 2163.
Campbell Daniel P.
Larsen James W.
Gaudier Dale
Miller Stanley D.
Phan Trong Q.
Sangamo Weston, Inc.
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