Gas leakage automatic alarm, automatic circuit shut-off
Source: InternetPublisher:toothache Keywords: Automatic alarm D trigger potentiometer Updated: 2020/02/16
Circuit working principle: The gas sensors G and R3 in the dotted box, the potentiometer Rp3,
the resistor R1, etc. form a bridge circuit . When the gas does not leak, the bridge is in balance,
no current flows through R8, and there is no voltage pulse output. The CH4044 terminal of the D flip -flop outputs low
level, and the relay K does not close, and the green light is on at this time.
- How to Build a Smart Knock Detection Door Lock Using Arduino
- How to build an electric vehicle EV charger
- Disconnected anti-theft alarm circuit (1)
- Differential voltage or differential current alarm
- Water dispenser double sheet control circuit
- Catillac luggage compartment opening circuit diagram
- Infrared blind cane circuit diagram
- Smart transmitter circuit diagram with hart interface
- Stapler control circuit
- Low cost alarm circuit
- BA1404 FM transmitter chip internal principle block diagram and application circuit diagram
- Automobile oil level detection and alarm circuit
- Bipolar regulated power supply circuit using SW1468 voltage regulator block 3
- Mains undervoltage and overvoltage protection circuit 2
- Salt bath resistance furnace temperature control circuit
- Desk lamp dimming soft switch circuit
- Transistor attenuated tone control circuit
- The production of several super bass circuits 02
- Simple and practical temperature control circuit
- Timing circuit composed of D flip-flop