TEMPERATURE CONTROLLER Russian patent published in 2000 - IPC

FIELD: devices responsible for temperature conditions of different heating systems. SUBSTANCE: temperature controller has temperature sensitive elements 1 and 2 connected to corresponding inputs of adder 5 through the first and second comparison circuits 3 and 4, respectively. Output of adder 5 is connected to control unit responsible for operation of mains switch 7. Mains switch 7 is connected to heating assembly of fluid medium 9 through current transformer 8. Current transformer is series-connected to scaling amplifier 10 and to current stabilization circuit 11 including sync-pulse former 12. Current stabilization circuit 11 is connected to the second input of control unit 6. Scaling amplifier 10 is also connected to alarm-signalling circuit 13 which is in its turn connected to respective input of adder 5. Temperature controller may also be provided with circuit of formation of at least one automatic post-emergency starting 14 and room temperature set-point device 15. Temperature controller provides for maintenance of preset temperature in heated room 16. EFFECT: reliable current protection. 3 cl, 3 dwg