To begin with, this article talk about two main parts for wireless phone charging: So, making Simple Wireless Mobile Phone Charging Circuit is easy and for that we only need resistors, capacitors, diodes, voltage regulator, copper coils and transformer to make circuit work good. Transmitter Circuit Working: Parts List: Components Values Quantity Resistor 1k 1/4 […]
Hobby Circuits
Simple Door Open Alarm Circuit using Reed Switch
Simple Door Open Alarm Circuit using Reed Switch uses reed switch which makes alarm sound when door opens; this simple circuit help protect door from people not allowed. Also, it have reed switch, transistors, resistors, buzzer, diode and LED and here, reed switch control power to alarm. Circuit Working: Parts List: Components Values Quantity Resistors […]
Simple FM Microphone Transmitter Circuit
FM mic transmitter is small device and it changes sound from mic into radio signal. FM radio can hear it in short distance and this Simple FM Microphone Transmitter Circuit uses one NPN BC547 transistor., even it is small it can send FM signal pretty far. Circuit Working: Parts List: Components Values Quantity Resistors 330Ω […]
Tone Controller Circuit using IC TL072 Op-amp
Tone Controller Circuit using IC TL072 Op-amp changes treble and bass sound, as it makes sound better and let us control treble and bass. Also, parts connect in order to cut or boost some sound frequencies. Circuit Working: Parts List: Components Values Quantity Resistors (All resistors are 1/4 watt unless specified) 1k 2 100k 2 […]
Automatic Staircase Light Circuit
Automatic Staircase Light Circuit turn ON light when someone uses stairs and after some time it turn OFF by itself automatically; also it help keep home safe and saves electricity. Circuit Introduction: Regular stair lights: We turn the system ON and OFF manually using switches at the top and bottom; however, sometimes people forget to […]
How to Build a Mini Tesla Coil Circuit
In this post for How to Build a Mini Tesla Coil Circuit these tesla coil make high voltage and low current. Furthermore, mini tesla coil is small version of big one and it can light small things or make tiny sparks and also it runs on 9V battery or other low power. Circuit Working: Parts […]