Using temperature and frequency converter high-precision temperature control circuit diagram

Published:2011/8/9 2:28:00 Author:Rebekka | Keyword: high-precision temperature control | From:SeekIC

Because the RB changes with temperature, the fc also changes with temperature. Audio decoder phase lock loop uses a single audio decoder integrated circuit IC2 (LM567), the center frequency is xsl-fo = 1/1.1 Rw1C4. The adjustment of W1can setxsl-fotemperature frequency. When the IC1 oscillation frequency is the same with the center of the IC2, fc frequency xsl-fo is consistent. The LM567 outputs low level (8) foot) and makes relay J suck close. It will open the load.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/Temperature_Control/Using_temperature_and_frequency_converter_high_precision_temperature_control_circuit_diagram.html

Print this Page | Comments | Reading(3)