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Record Details

Record 22 of 28154
Temperature-Controlling Circuit
Author and Affiliation:
Temple, Gerald(NASA Ames Research Center, Moffett Field, Calif.)
Abstract: Simple circuit switches current to electrical heater on and off to maintain temperature of room at 25 plus or minus 0.5 degree C. Lightweight, compact, reliable, insensitive to electrical noise, and uses single 5-Vdc power supply. Handles ac loads of 10 A. Designed to operate outside temperature controlled environment over range of -55 to +85 degree C. Thermistor provides input signal for simple temperature controller. Output of controller applied to solid-state relay, which in turn switches current to resistance heater.
Publication Date: Nov 01, 1987
Document ID:
19870000512
(Acquired Nov 04, 1995)
Accession Number: 87B10512
Subject Category: ELECTRONIC COMPONENTS AND CIRCUITS
Report/Patent Number: ARC-11707
Document Type: NASA Tech Brief
Publication Information: NASA Tech Briefs (ISSN 0145-319X); 11; 10; P. 28
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Description: In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: HEATING EQUIPMENT; TEMPERATURE CONTROL; THERMOSTATS
Availability Source: National Technology Transfer Center (NTTC), Wheeling, WV
Availability Notes: No additional information available: For specific technical questions contact TU Officer at Center of origin.
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