Sensor circuit of alarm

Abstract

The invention discloses a sensor circuit of an alarm. The sensor circuit of the alarm comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a bus register, a first phase inverter, a second phase inverter, a first diode, a second diode, a first capacitor, a second capacitor, a first light emitting diode, a second light emitting diode and a power management chip, wherein the model of the power management chip is 9602; and a first end of the first resistor is a signal inputting end. The sensor circuit of the alarm is a CMOS (complementary metal-oxide-semiconductor transistor) alarming circuit consisting of the bus register, the phase inverters and the power management chip. The sensor circuit is mainly used for the alarm; when low level is inputted, the first light emitting diode is not turned on; when high level is inputted, the first light emitting diode is turned on; and when high level inputting is changed into low level inputting or low level inputting is changed into high level inputting, the second light emitting diode twinkles once. The sensor circuit of the alarm is simple in structure and high in sensitivity, and has popularization and using value.

Description

technical field [0001] The invention relates to a sensor circuit, in particular to a sensor circuit of an alarm. Background technique [0002] A sensor is a detection device that can sense the measured information and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, and display. , recording and control requirements, it is the primary link to achieve automatic detection and automatic control, the alarm is to prevent or prevent the consequences of an event, to remind or warn us in the form of sound, light, air pressure, etc. Electronics that take some action. Alarms are divided into mechanical alarms and electronic alarms. With the advancement of science and technology, mechanical alarms are increasingly replaced by advanced electronic alarms, which are often used in system failures, safety precautions, transportation, and m...

AI Technical Summary

Problems solved by technology

Alarms are divided into mechanical alarms and electronic alarms. With the advancement of science and technology, mechanical alarms are increasingly replaced by advanced electronic alarms, which are often used in system failures, safety precautions, transportation, and medical rescue. , emergency relief, induction detection and other fields, the structure of the traditional CMOS alarm circuit is complex and the response is not sensitive enough

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