| 摘要 |
FIELD: thyristor automatic two-position temperature regulators for various heating devices, refrigerators, and protective equipment. SUBSTANCE: control circuit makes it possible to regulate temperature of electrical engineering objects or medium in range from minus 60 C up to plus 150 C effectively and with high precision and may be used as thermal safety device. In this case circuit of automatic temperature regulator is simplified, there is no necessity in source of constant voltage and in amplifier of constant current. Circuit may use parallel connection of group of thermal sensors for protection of various units of object against violation of set temperature conditions. Automatic temperature regulator with control circuit incorporates load, electronic relay on symmetrical thyristor, RC network, first and second threshold keys, source of pulsating voltage (220 V network), voltage divider to which midpoints threshold keys are connected. EFFECT: improved design. |
