Simple Lighting Surge Protector Circuit

GDT’s are special type of gas filled tubes used for wide range of electronic/electrical circuits for providing protection against lightning ...

Simple Alarm Circuit Keeps Wandering Children

The receiver circuit in Figure 1 sounds an audio alarm when the transmitter (Figure 2) moves beyond a designated perimeter. The transmitte...

Simple Water Sensor Circuit Diagram using IC 555

This is a water sensor /rain alarm circuit diagram; it can be used on motorcycle, car or other device that we want to protect from water, ra...

Simple Infra red Receiver

This very simple infra-red receiver is intended to form an infra-red remote control system with the simple infra-red transmitter described i...

Simple Mobile Car Stereo Player

Using a mobile phone while driving is dangerous. It is also against the law. However, you can use your mobile phone as a powerful music play...

Simple But Electronic Telephone Ringer

This circuit produces a ringing sound similar to that made by more recent telephones. It consists of three almost identical oscillators conn...

Simple Gated Alarm

Sometimes the need arises for a simple, gated, pulsed alarm. The circuit shown here employs just four components and a piezo sounder and is ...

Simple LED Driver Design

The Simple LED Driver Design TCA62735AFLG is a charge pump type DC DC Converter specially designed for constant current driving of white L...

Simple 1 Hour Timer Circuit with Buzzer

  THE DESIGN CRITERIA to be satisfied by this timer are that it is simple to operate, reliable, pocket sized, has an audio output and is che...

Simple Meter Impedance speaker Circuit Diagram

A simple impedance meter can be useful to measure the actual impedance of a speaker or headset, ideal for anyone working with sound, makin...

Simple Accurate Bass Tone Control

A difficult problem in the design of conventional stereo tone controls is obtaining synchronous travel of the potentiometers. Even a slight...

Build a Simple FM Transmitter Circuit Diagram

Build a Simple FM Transmitter Circuit Diagram . This FM transmitter is about the simplest and most basic FM transmitter it is possible to ...

Simple Audio Power Meter Circuit

This simple circuit indicates the amount of power that goes to a loudspeaker. The dual-color LED shows green at an applied power level of ab...

Simple Siren Circuit

This circuit will generate siren sound when S1 pressed and increate sound frequency becuase capacitor C1 charged when switch S1 released th...

Simple Micro Inverter circuit DC voltage AC 12v x110v

This is a micro - inverter DC voltage to AC from a 12v battery can generate a voltage of 110 or 220 volts AC and a frequency of...

Simple Music Generator Schematic Using UM66

UM66 is a pleasing music generator IC which works on a supply voltage of 3V. the required 3V supply is given through a zener regulator. its...

build a Simple 12v to 9v converter

This little circuit uses a LM317 variable voltage regulator to adjust the input voltage down to +9 volt, or whatever else you need. Just a s...