Motor vehicle compartment air temp. regulator - uses voltage derived from time rate of heating air outlet temp.

摘要

Temp. regulator is used esp. for an internal compartment of a motor vehicle. The heat exchanger flow valve is adjusted by electrical drive responding to the room temp. which is regulated independently of ambient. The system uses a voltage derived from the air outlet temp. which is used in conjunction with a voltage derived from room air temp. The air outlet temp. is derived from the time variation of this temp. Both temps are derived from temp. sensitive resistors with the use of amplifiers.