This post describes how to build a High power Touch Sensor using three NPN Transistors. Two TiP3055 Transistors and one BC547 Transistor are used. This Touch Sensor Circuit is powered by a 12V DC Supply. In this you can connect more power load to the output.
Touch Sensor Circuit Diagram :
I designed a circuit Diagram From Easy Eda Site
Components Needed :
- Tip3055 Transistor – 2no
- BC547 Transistor – 1no
- 12v DC Motor – 1no
- 1k Resistor – 1no
Tools Needed :
- Soldering Iron
- Soldering Iron Stand
- cutter
- Lead
- Past
- PCB Holding Stand
