Temperature control device of an optical semiconductor device

Details Temperature control device of an optical semiconductor device Temperature control device of an optical semiconductor device

1997-12-24

2000-01-11

Bennett, Henry

Refrigeration

Using electrical or magnetic effect

Thermoelectric; e.g., peltier effect

622592, F25B 2102

Patent

active

060122919

ABSTRACT:
A temperature control device of an optical semiconductor device is provided for keeping the optical semiconductor device constant. An optical semiconductor device is fixed to a thermal conductor. One thermistor is arranged on the thermal conductor at the portion where it is susceptible stronger to an ambient temperature rather than the optical semiconductor device is susceptible to the ambient temperature while another thermistor is arranged on the thermal conductor at the portion where it is susceptible weaker to the ambient temperature rather than the optical semiconductor device is susceptible to the ambient temperature. The difference between an average temperature of the thermal conductor at two points detected by the thermistors and a set temperature is detected by a temperature detecting means comprising a bridge circuit having the thermistors which are connected to each other so as to form opposing sides of the bridge circuit and a differential amplifier for receiving an imbalanced voltage of the bridge circuit. The thus detected difference of the temperature is outputted to a temperature control circuit, whereby the temperature control circuit controls a Peltier driving current of a Peltier element so that the average temperature of the thermal conductor at two points thereof and the set temperature become equal to each other.

REFERENCES:
patent: 3121998 (1964-02-01), Nagata
patent: 5515682 (1996-05-01), Nagakubo et al.
patent: 5522225 (1996-06-01), Eskandari
patent: 5690849 (1997-11-01), DeVilbiss et al.
patent: 5704213 (1998-01-01), Smith et al.
patent: 5927077 (1999-07-01), Hisai et al.

Affiliated with

Also associated with

Rating

Temperature control device of an optical semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature control device of an optical semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature control device of an optical semiconductor device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1453865