Simple Electronic Circuits

12V CFL Emergency Light Circuit Using 3525 IC | Mini Inverter Circuit

This circuit is used to drive a regular a/c cfl bulb upto 32 watts. You can try it by using bulbs with higher watts or changing the transformer. The output of sg3525 is fed to the transformer through two Mosfets. The pinout diagram of sg3525 is given below: Components Required:Resistor(1/4W):R1- 4.7KR2- 18KR3- 4.7KR4- 22ER5- 22ER6- 10KR7- 10K Capacitor:C1- 0.001 uF …

Burglar Alarm Using NPN(BC548)And PNP(SK100) Transistor

The burglar alarm circuit shown here sounds an alarm when the wire loop is broken.The system is implemented by installing a sensing loop, which is basically a thin copper wire. This way, the loop is both invisible and brittle enough to break easily and initiate the alarm mechanism.At the time of an intrusion, the loop breaks and this causes the …

Water Level Indicator Circuit Project Using IC 555 With Motor Dry Run Protection Alarm

Author: Manikandan K J Components Required:Resistors (All 1/4W)R1 – R6 – 1MR7 – R12 – 220KR13 – R17 – 1KR18 – 3.3KR19 – 1MR20 – 100K (Preset)R21 – 1KR22 – 1.5K Capacitors:104(0.1uF) – Ceramic Disc – 1 no.100uF,25V – 1 no.470uF,40V – 1 no. IC:U1- CD4049 (with Base)U2-555(with Base) Diodes:D1 – LEDD2 & D3- IN4148DB1- W04 (Bridge Rectifier) Transistor:S8550 PNP Relimate Connector:Sensor – 8 …