75_250℃_OVEN_CONTROL

Published:2009/7/7 22:55:00 Author:May | From:SeekIC

Provides propor-tional temperature control of small oven to within 1℃ over temperature range. Uses 823B voltage regulator operating from same 28-V source as oven. Temperature-setting pot should be 10-turn wirewound. Powertransistor Q1operates either saturated or almost cut off, so no heatsink is required.-R. L. Wilbur, Pro-portional Oven-Temperature Controller, EDNlEEEMagazine, Sept. 15, 1971, p 45.



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