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.
Light activated switch circuit components.
It could act as a photocell and switch off the light in a room or turn on the radio when it is dawning etc.
It has two internally frequency compensated operational amplifiers.
A 230v ac supply is provided to the load in this case the load is represented with a lamp.
The circuit can be used as a commercial automatic street light control system as a domestic porch light or corridor light controller or simply can be used by any school kid for displaying the feature in his school fair exhibition the following content describes four simple ways of making a light activated switch using different methods.
A simple light activated switch description.
The lm358 ic has 8 pins and can have supply voltages ranging from 3 32 volts.
The comparator ic lm358 and the ldr.
Light activated switch circuit this light activated switch circuit with ldr and an operational amplifier has many applications.
The major components used in this circuit are light sensor ldr darlington pair transistors and a relay.
The light activated switch circuit mainly consists of two components.
The automatic light sensor circuit can be designed using various electrical and electronic components.
How the light activated switch circuit works.