Light sensitive switch Circuit Diagram The 330K Ohm Resistor and LED can be replaced with virtually anything to trigger a signal or an event. For example, a 9 Volts Relay would be used to make an absence-of-light activated switch. To make this circuit operate in reverse (the LED turns on when there is light), simply just exchange the positions of the Variable Resistor and the LDR.
The 2SC2481 is an NPN transistor often used in low-power switching applications and amplifier circuits. In this DIY project, we will use the 2SC2481 to build a simple light-sensitive switch. Thisโฆ The light-sensitive switch is an ingenious electronic device that responds to the intensity of light falling on it, enabling the automatic switching of lights. In this article, we will explore a simple, cost-effective, and user-friendly light-sensitive switch circuit utilizing the popular op-amp 741. Light Sensor Circuit Working Operation. The light sensor circuit is an electronic circuit designed using (light sensor) LDR, Darlington pair, relay, diode, and resistors which are connected as shown in the light sensor circuit diagram. A 230v AC supply is provided to the load (in this case, the load is represented with a lamp).
Light Sensitive Switch Circuit Circuit Diagram
The basic components of a light sensitive switch circuit diagram include a visible light sensor, a counter, a comparator, and a trigger logic circuit. Together, these components measure the level of light by comparing the current light intensity to an input level, and then trigger a light switch when the light level drops below the set threshold.
In this circuit, protective measures must be taken because it is isolated from the network. Light Switch Circuit Diagram. Power supply circuit is taken from the bridge rectifier D1โฆD4 is filtered and stabilized by R1, C1, and D5. The bridge circuit is difficult to identify in the given diagram, but it is made of R2 โฆ.. R4, P1 and
DIY Electronic Project Using 2SC2481 Transistor: Building a Simple ... Circuit Diagram
It automatically switches ON lights when the light goes below the visible region of our eyes. ( e.g in evening after Sunset ). it automatically switches OFF lights when light fall on it ( e.g in morning ) , by using a sensor called LDR (Light Dependent Resistor) which senses the light just like our eyes.
