Semiconductor light source temperature measurement

Details Semiconductor light source temperature measurement Semiconductor light source temperature measurement

1989-12-20

1991-06-18

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

307310, 372 34, G01K 0114, G01K 0700

Patent

active

050245350

ABSTRACT:
A temperature sensing semiconductor device is fabricated in the same substrate as a semiconductor light source. A sensing voltage generated across the sensing device is proportional to light source temperature. The sensing voltage is amplified by an operational amplifier, and converted into a digital signal by an analog to digital converter. A microprocessor converts the digital signal into a corresponding temperature signal using a look-up table.

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