Combustible gas alarm circuit (3)
Source: InternetPublisher:宋元浩 Keywords: Combustible gas alarm circuit thyristor alarm Updated: 2020/04/25
Circuit working principle: The circuit is simple and reliable. When the combustible gas reaches a dangerous concentration
, the internal resistance of the gas sensor becomes smaller, the current flowing through the potentiometer Rp increases, the thyristor VS
is triggered, and the buzzer sounds an alarm. Thermistor Rr is used for temperature compensation. The circuit
is powered by 220 V AC mains power. The alarm is low cost and suitable for home installation.
Latest Industry Application Circuits
- How to improve SiC traction inverter efficiency with real-time variable gate drive strength
- Production of two-color music lantern
- Binary clock design based on FPGA
- Video doorbell design based on Raspberry Pi
- Grain temperature measuring instrument circuit
- Electronic mousetrap circuit
- Enhanced password lock circuit using AE1169
- Remote control fan speed regulator circuit
- Box type electronic mousetrap circuit
- Cadillac seat memory circuit diagram
Popular Circuits
- Zero-crossing trigger circuit diagram based on thyristor
- A new type of dimming SM9043 integrated circuit
- SH-803 Holiday Lights ASIC
- SCR control buzzer circuit
- thyristor relaxation flasher
- Series thyristor flasher that can be connected to various loads
- SCR emergency power supply
- Trigger driven thyristor
- SCR constant current and constant voltage charger
- Internal schematic diagram of contactless AC relay
京公网安备 11010802033920号