Autonomous triggering and detecting device for detecting smoke in building, has adjusting and control circuit including transistor that is assembled on transmitter whose collector voltage controls voltage applied to actuator

摘要

The device has a power supply, and an adjusting and controlling circuit for controlling and adjusting voltage applied to an actuator (135). The adjusting and control circuit is powered by the power supply and comprises a transistor (205) that is assembled on a transmitter, whose base voltage is controlled according to a signal of a detector that detects a value of a physical magnitude, where transmitter voltage is proportional to control voltage applied to the actuator. Collector voltage of the transmitter controls the voltage applied to the actuator.