555 On Delay Timer Circuit Diagram

555 On Delay Timer Circuit Diagram

The 555 timer is a versatile integrated circuit that can be used to create a variety of timing and triggering circuits. One common application for the 555 timer is to create an on delay timer. An on delay timer is a circuit that delays the turn-on of an output for a specified amount of time. This can be useful for applications such as turning on a light after a door is opened, or starting a motor after a button is pressed. The following circuit diagram shows a simple on delay timer circuit using a 555 timer:

555 On Delay Timer Circuit Diagram

The circuit consists of a 555 timer, a capacitor, a resistor, and a switch. The 555 timer is configured in astable mode, which means that it will produce a square wave output. The frequency of the square wave output is determined by the values of the capacitor and resistor. When the switch is closed, the capacitor charges through the resistor. When the capacitor reaches a certain voltage, the 555 timer triggers and the output goes high. The output will remain high for a period of time determined by the value of the capacitor. When the capacitor discharges, the 555 timer resets and the output goes low. The amount of time that the output is high is called the delay time. The delay time is determined by the following formula: ``` Delay time (seconds) = 1.1 * R * C ``` where R is the resistance of the resistor in ohms and C is the capacitance of the capacitor in farads. The 555 on delay timer circuit can be used to create a variety of timing and triggering applications. For example, the circuit could be used to turn on a light after a door is opened, or to start a motor after a button is pressed. ## How to Use the 555 On Delay Timer Circuit The 555 on delay timer circuit is very easy to use. To use the circuit, simply follow these steps: 1. Connect the circuit according to the circuit diagram. 2. Set the desired delay time by adjusting the values of the resistor and capacitor. 3. Connect the input to the trigger pin of the 555 timer. 4. Connect the output to the load that you want to control. 5. When the input is triggered, the output will be delayed for the specified amount of time. ## Example Applications of the 555 On Delay Timer Circuit The 555 on delay timer circuit can be used to create a variety of timing and triggering applications. Some common applications include: * Turning on a light after a door is opened * Starting a motor after a button is pressed * Delaying the start of a process * Controlling the speed of a motor * Synchronizing two or more devices ## Conclusion The 555 on delay timer circuit is a versatile and easy-to-use circuit that can be used to create a variety of timing and triggering applications. If you are looking for a way to delay the turn-on of an output, the 555 on delay timer circuit is a great option.


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