Touch switch circuit using 555 timer. In this touch switch circuit two ics are used one is 555 timer ic and second is d flip flop 7474 ic.
Single Touch On Off Switch Circuit Touch On Off Using One
Touch on off switch circuit diagram. In this circuit a n channel mosfet irfz44n is used as switching element. On off any appliance using single touch plate. The counter circuit is a cdb490 type and is capable to show at pin 12 states. This touch switch circuit is composed from an current amplifier and a decimal counter circuit. 1 x 33 mω resistor 14 watt 1 x 1 mω resistor 14 watt 1 x bulb with holder regular or cfl 1 x 5v relay module if relay module is not available then you need the following components 1 x 5v. If can be employed in circuit with few easy to avail components and this device can suit almost any product needing a power switch or toggle mode controlled functions.
Touch plates circuit diagram. In this simple touch switch circuit we have used timer ic 555 operated as on and off. This is a simple touch on and off switch circuit. 1 x 555 timer ic. The circuit diagram for the touch on and off switch circuit is shown in the below image. Circuit components 4 to 6 supply voltage.
You can say that on off using one touch plate or one touch point this circuittouch. A very simple touch switch circuit diagram can be constructed using this circuit schematic. This is simple touch on off switch circuit diagram using mosfet. This is the circuit diagram of a small touch plate controller using ic ne 555this circuit is ideally useful for making touch operated doorbells buzzers toys etc which when touched on the touch plate operates the relay for a preset time and then turns off automatically. Very simple touch switch circuit for touch on and touch off for appliance. This circuit will turn on off an electronic relay using the same touch sensor.
It may be now possible to convert your existing mains 220v light switch circuit with the electronic touch switch circuit explained in this post. 10µf 100nf 104 capacitors. The voltage supplied in this circuit must not exceed 6v doing so will result in ic burn out. In circuit uses an integrated circuit timer lm555 or ne555. If the touch plates are placed at a convenient place we do not require moving from our location to turn on and off the device. It can be in toggle mode touch on touch off or programmable auto delay mode this ic designed specifically for touch controls.
This third idea is built around the chip m668 and it employs just a handful of other components for implementing the proposed mains touch switch onoff application. When once touch touch the touch plate the light is on again if you touch the light is switched off. By using this circuit you can turn on and off a device by simply touching the touch plates or metal used as sensor. And a relay is connected to give the supply to the load such as ligh bulb fan etc. It has a part compares with voltage 2 group. 3 220v electronic touch switch circuit.
The aove figure shows the circuit diagram of touch switch.
Gallery of Touch On Off Switch Circuit Diagram
