TEMPERATURE REGULATOR Russian patent published in 1994 - IPC

FIELD: automatic control devices. SUBSTANCE: temperature regulator has bridge temperature transducer 1, amplifier-demodulator 2, first adder 3, threshold gate 4, which are connected in series, first control pulse shaper 5, amplifier 6, heater 7, transformer 8, second control pulse shaper 9, sawtooth voltage oscillator 10, amplitude detector 13, resistive voltage scaling circuit 14, reference positive voltage power supply 15, differential amplifier 12 and second adder 11. EFFECT: increased precision of operations due to increased stability of current running through heater when frequency of power supply changes or power supply voltage changes. 1 dwg