Relay Ldr Circuit Diagram 230v. A very simple circuit is used to obtain the dc voltage required for the light operated relay circuit to work. Ldr circuit diagram ldr sensor circuit high sensitive and flicker less tested circuit.
The diodes are connected in the form of a bridge used to alter the ac voltage into dc. The ldr is working as a light dark sensor and scr is working as a switch. Are several ways to turn on the street lights but the following circuit describes an automatic street light controller circuit that uses ldr and relay to perform this job automatically.
105j 400v 2.
The diodes are connected in the form of a bridge used to alter the ac voltage into dc. You won t need rly1 that way. This circuit changes the ac supply into a dc. Here ldr acts as shadow sensing devices and makes turn on or off the relay when ever it detects the shadow and keep the relay in either on or off condition until the next detection of shadow.
