Delay alarm circuit
Source: InternetPublisher:石榴姐 Keywords: Alarm circuit BSP relay contact Updated: 2021/05/15
It is a monostable circuit composed of two sets of 555 time base integrated circuits Ai and A2.
When the trigger switch S (which can be a reed switch contact , a relay contact , etc.) is closed artificially, the relay KA will close,
which is an alarm. After a period of delay, the circuit returns to the alarm state.
Latest Optoelectronic Circuits Circuits
- battery charging circuit
- Practical sensitive light-controlled switch circuit diagram
- "OR" logic element configuration circuit
- Power outage emergency lighting
- Corridor automatic light-off device
- Simple electronic doorbell circuit
- Simple light-controlled street light circuit (7)
- Electronic rapid starter for fluorescent lamps
- Fluorescent lamp dimming circuit composed of thyristors
- Photoelectric adjustment circuit
Popular Circuits
- strain sensor
- Smoking Cessation Circuit
- Egg warming circuit
- Chicken supplementary light to increase egg production rate circuit
- Greenhouse temperature control circuit
- Farmland drainage automatic control circuit
- Diode balanced amplitude modulation circuit
- Audio function generator composed of ICL8038
- Broadband high frequency power amplifier circuit
- Differential Amplifier Circuit
京公网安备 11010802033920号