Modified semiconductor temperature sensor

Details Modified semiconductor temperature sensor Modified semiconductor temperature sensor

1978-11-16

1980-09-23

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

73362SC, 307297, 307296R, H03K 326

Patent

active

042245370

ABSTRACT:
A temperature sensor circuit is disclosed which employs a plurality of semiconductor junctions arranged either in a current-mirror configuration using a bias circuit and current source transistors or in a bridge configuration in order to provide a differential output voltage which is linearly proportional to temperature. The temperature sensor circuit is ideally suited for fabrication as an integrated circuit, and the differential output voltage is relatively insensitive to integrated circuit processing variations as well as power supply variations. By providing a differential output signal, the circuit is particularly useful in high noise environments such as automotive applications.

REFERENCES:
patent: 4029974 (1977-06-01), Brokaw
patent: 4071313 (1978-01-01), Dobkin
patent: 4123698 (1978-10-01), Timko et al.
patent: 4138616 (1979-02-01), Turner

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