Title:
TEMPERATURE COMPENSATING METHOD OF ELEMENT OF FUNCTION OF FLOWING CURRENT IN SENSITIVITY AND CIRCUIT
Document Type and Number:
Japanese Patent JPS59232472
Kind Code:
A
Abstract:
A temperature compensation method and circuit for a Hall element or other element with similar characteristics comprising a pair of current carrying branches, one of which includes a resistor. A pair of transistors in the branches are controlled in unison to control the sum of the currents in the branches in response to current through the element, and controlled differentially to control the relative magnitudes of the currents in the branches in response to the voltage generated by the element. A comparator circuit including an active load in the branches compares the branch currents and provides a switched output signal upon a predetermined relationship between the currents. Switching hysteresis is provided by changing the sum of the currents depending on the state of the output signal.
Inventors:
JIEEMUSU ETSUCHI ASAATON
SHIRUBO SUTANOJIEBUIKU
SHIRUBO SUTANOJIEBUIKU
Application Number:
JP10354284A
Publication Date:
December 27, 1984
Filing Date:
May 22, 1984
Export Citation:
Assignee:
HONEYWELL INC
International Classes:
H01L23/58; G01D3/036; G01R19/32; H01L43/06; (IPC1-7): H01L43/06; H01L23/56
Domestic Patent References:
| JPS503280A | 1975-01-14 |
Attorney, Agent or Firm:
Masaki Yamakawa (3 outside)