This manual explains how to build a single-touch ON/OFF switch using a CD4013 dual D flip-flop IC, including circuit theory, component selection, and…
This document provides instructions for constructing a single-touch ON/OFF switch circuit. The design utilizes a CMOS integrated circuit, specifically the CD4013 dual D flip-flop, configured as a monostable and a bistable circuit to control a relay via a touch electrode. This manual is written in Chinese.
| IC Type | CD4013 |
|---|---|
| Transistor Type | 2SC945 |
| Resistor R4 | 2M |
| Capacitor C1 | 47u/25v |
| Capacitor C2 | 0.22 |
| Relay Voltage | 12V |
The circuit uses a CD4013 dual D flip-flop integrated circuit.
It is recommended to use a transformer to step down mains electricity to 12V, rather than using batteries directly.