Light trigger switch circuit
Source: InternetPublisher:偷熊计划 Keywords: switching circuit trigger operational amplifier phototransistor Updated: 2021/09/06
The circuit shown uses a Darlington phototransistor and an operational amplifier , so very weak light can cause the circuit to flip. When the positions of
Ri and the phototransistor are reversed, or the inverting and non-inverting input terminals of the operational amplifier are reversed, the circuit can be modified
into a dark trigger switch.
Latest Optoelectronic Circuits Circuits
- USB powered portable light
- DCD-1240 multifunctional rechargeable lighting
- Low cost LED automatic emergency light circuit
- Blinking LED circuit diagram based on LDR and resistor
- Gift lamp music box circuit
- Desk lamp dimming soft switch circuit
- Chandelier brightness controller circuit using thyristor
- Digital display multi-function thermometer circuit
- Shock resistant soft start constant current LED lighting circuit
- 6-digit cathode fluorescent triode display circuit
Popular Circuits
- Ultrasonic remote control lighting switch circuit b
- Sound remote control switch circuit
- Induction automatic switch circuit
- High frequency signal input switch circuit b
- FM modulator strong-weak signal switching circuit c
- Eight-way light-touch electronic interlock switch circuit
- Photo machine automatic exposure drive circuit
- Automatic periodic switching circuit 4
- One of the lighting voice-activated switch circuits using thyristors
- Light control switch circuit 3 controlled by flashlight
京公网安备 11010802033920号