SIMPLE CIRCUIT PROJECTS Archive

simple easy electronic circuits hobby applications student projects

Transformerless Led Lighting Led Lamp Circuit

Transformerless circuit with 220V AC LED lamp is working . Half -polar LEDs 1 uF capacitor to run the transformer is used instead . High- voltage transformerless all LEDs are..

Led Wall Washer Led Lighting

LED Wall Washer quite popular very sophisticated applications , there are those made ​​in larger sizes will share the cost of the circuit can be used for small-scale jobs is..

Simple Motor Controller Circuit with phototransistor

2 bc547 transistors prepared with phototransistor and a simple electronic motor control circuit phototransistor beginners to understand the operation of `simple, a good example .. 5v dc motor control circuit..

Electronics Circuits Book for the Hobbyist

I do not know who has prepared the book, but a very simple circuit diagram found on the internet’s opamps circuits, transistor circuits, integrated circuits, etc. 555. There is also..

Simple Sounder Alarm Circuit With 555

A simple alarm circuit but Mr. deterrent siren voice of the author would not last 🙂 circuits infrared transmitter and as a receiver consists of two parts transmitter circuit also..

Single Trigger Circuit NE555 Timer

When triggered by a button integrated in the circuit relay 555 timer is energized and immediately set is full when you leave the ignition again. working time is determined by..

Transistor Adjustable ZENER Diode

Alternative to a zener diode circuit adjustable Zener. According to the current PNP transistor where you will use a more powerful zener diode can be achieved. voltage adjustment every 10k..

Battery Alarm Circuit for Model Helicopters ATtiny13

ATTINY13 Atmel microcontroller installed on the circuit model helicopter is checking the voltage of the battery the battery (or battery) voltage circuit when the level set LEDs, buzzer, giving the..

Digital Controlled Current Limiting Circuit

With this circuit current limitation can set digitally uln2003a. by the combination of resistors R-2 was used. proportional to the binary number value of the current limiting is set. mje3055..

Timer relay transformerless 555 Circuit

Made with 555 timer integrated timer circuit is supplied from the power supply transformerless transformerless voltage to the circuit drawing too much current is available with leveling . However, where..