Over-Voltage Automatic Switch off Circuit

Over-Voltage Automatic Switch off Circuit

Over-voltage voltage switch off circuit using TL431 Shunt Regulator IC As per datasheet –  TL431A is the three-terminal programmable integrated circuit . This is a shunt regulator diode. Look like a transistor. This monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V with two external resistors. This device exhibit a wide operating […]

Transistor Working Basic

Transistor Working Basic

Transistor is 3 Terminal electronic semiconductor component/device. It has three terminals named as BASE, Emitter And Collector. Transistor name meaning lies in its own working. Trans + istor = Transistor The prefix trans tells about signal transfer from low resistance to high resistance part and istor means solid physical structure having property of resistance. A transistor has a 3 sandwich […]

Simple 5 LED Blinker/Flasher circuit

Simple 5 LED Blinker/Flasher circuit

Simple LED Flasher/chaser/Blinker Circuit This circuit is made using 5 npn transistors, some capacitors and some resistors. 5 LEDs are blinking as shown in this video gif . you can connect more LEDs as this sequence by adding some more transistors. Q1-Q5= BC547 Resistors 1K-5, 22k-5 Capacitor 22uf 25v-6 Here is an another different circuit of 5 LED running effect […]

500m FM transmitter circuit

500m FM transmitter circuit

  Easy , Simple and best FM transmitter circuit for homemade mini radio station Components Transistor- 2N3904-2 Resistor-1M-1, 470Ω-1, 47kΩ-2, 10kΩ-1 Capacitor-1nf-1, 0.1uf-3, 10pf-2, 33pf-2 Inductor- 4-5 Turn of 4 mm dia air core coil of copper wire Condenser mic-1 This simple and easy FM transmitter circuit can transmits the input signal get from the microphone upto 500 meter range […]