GAS SENSOR DRIVING CIRCUIT

摘要

PURPOSE: A gas sensor driving circuit is provided to improve the detecting performance by driving a gas sensor and a CO sensor through a microprocessor. CONSTITUTION: A gas sensor driving circuit includes a gas sensor driver(20) for detecting combustible gas and outputting a corresponding electric signal and a CO sensor diver(30) for detecting CO and outputting electric signal. A microprocessor(10) compares the signals from the gas sensor driver(20) and the CO sensor driver(30) with standard values and outputting output signals when it is determined that the gas and CO are detected. An alarming member warns the gas leakage according to the output signals from the microprocessor.