On Off Delay Timer Circuit Diagram

An on-off delay timer is a device that can be used to delay the turning on or off of an electrical circuit. This can be useful for a variety of applications, such as turning on a light after a certain period of time, or turning off a motor after a certain period of time. On-off delay timers are typically made up of a number of components, including a timer, a relay, and a power supply. The timer is responsible for generating the delay, while the relay is responsible for switching the circuit on or off. The power supply provides the power to the timer and the relay. The following diagram shows a simple on-off delay timer circuit:

In this circuit, the timer is a 555 timer chip. The relay is a DPDT relay. The power supply is a 9V battery. The timer is configured in the astable mode. This means that it will generate a square wave output. The frequency of the square wave is determined by the values of the resistors and capacitors in the circuit. The relay is connected to the output of the timer. When the timer output is high, the relay coil is energized and the relay contacts close. This closes the switch in the circuit and turns the circuit on. When the timer output is low, the relay coil is de-energized and the relay contacts open. This opens the switch in the circuit and turns the circuit off. The delay time is determined by the value of the capacitor in the circuit. The larger the value of the capacitor, the longer the delay time. On-off delay timers can be used in a variety of applications. Some common applications include: * Turning on a light after a certain period of time * Turning off a motor after a certain period of time * Controlling the speed of a motor * Starting a timer * Stopping a timer On-off delay timers are available in a variety of sizes and configurations. They can be purchased from a variety of electronic retailers.

555 Delay Timer With On Off Basic Project