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Mini Ups System
This circuit provides an uninterrupted power supply (UPS) to operate 12V, 9V and 5V DC-powered instruments at up to 1A current. The backup...
Temperature warning indicator circuit
The circuit is a low temperature regulator, supervisor, warns us about global warming. Temperature control is done by the thermistor TH1,...
Simple Triangle wave, Square wave Generator Circuit
In tnis post we learn a simple circuit idea which may be used for producing important waveforms such as triangle waveform and square wavefo...
Adjustable Voltage, Current Power Supply Circuit Using IC L200
IC2 is connected as a differential amplifier and compares the signals at its two inputs. Referring to the circuit diagram: the input compris...
Using Home Music Power Amplifier Circuit Diagram
This is the simple Using Home Music Power Amplifier Circuit Diagram. This Power Amplifier built on a chip TDA7386. a sample of a simple b...
Simplest Single Phase Preventor Circuit for Three Phase Motor Potection
For a 3-phase induction motor,Lit is necessary that all the three phases of supply are present while it is on load. When any one of the fus...
12V 50W Switching Regulator Circuit Diagram
The schematic diagram below shows a simple trivial low-cost 12 volt DC 50W off-line SMPS switching power supply circuit. It can be used for...
Precision Full-Wave Ac-Dc Converter Circuit Diagram
A dc level is produced that corresponds to the ac input rms value (if sine wave), -i set the gain of IC2 to 1.11. This factor is the average...
Pure Sine Wave Inverter, Using IC 555
The proposed circuit generates accurately spaced PWM pulses which imitates a sine wave very closely and thus can be considered as good as ...
Simple Portable battery Powered USB Charger Circuit
This is a portable battery powered USB charger circuit. This circuit is able to charge your PDAs, Ipods, Mp3 players and any device that ...
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MOTOR PWM CIRCUIT
By using this circuit we can adjust the speed of motor 5% to 95%.
Circuit Diagram
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0-30 Volt Power Supply
0-30 Volts - 2-5A Variable Power Supply Circuit Diagram
100 Watt Inverter
100Khz Multiple Output Switching Power Supply Circuit
12 Vdc Battery Operated 120 Vac Power source Circuit Diagram
12 volt
12 Volt / 2 A Switching Power Supply Circuit Diagram
12 Volt Inverter for Soldering Iron
12 Volt Lamp Dimmer Circuit
120 VAC Lamp Dimmer Circuit
12V & 5V Combo power supply
12V 50W Switching Regulator Circuit Diagram
12V fixed voltage power supply
1KVA (1000 watts) Pure Sine Wave Inverter Circuit
2 in 1 Room Bell
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24 volt Lead Acid Battery Charger
2km Long Range FM Transmitter
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4 - 20 mA current signal in Instrumentation
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40 LED Bicycle Light Circuit Diagram Using 555 IC
500 Watt Pure Sine Wave Inverter Circuit
555 Amplifier Circuit
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A Car Battery Monitor
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Adjustable Voltage
Automatic 6 volt
Automatic Emergency Light
Automatic Fuse Circuit
Automatic heat detector
Automatic Lamp Control with Light Sensitive Switch
Automatic night lamp
Automatic street light switch
Automobile turn signal circuit.
Automotive Voltage Indicator
Battery charger circuit using L200
Battery Charger for 12v SLA Project
Battery Equality Monitor
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CAPACITOR FED POWER SUPPLY.
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DTMF Decoder
DTMF Proximity Detector
Dual Power Supply
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Fire alarm circuit.
FM Beacon Broadcast Transmitter (88-108 MHz) Circuit
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Gain and Volume Adjustment for Balance Input
Headphone Amplifier with IR Communication
Hi-Fi audio amplifier by ic TDA2003
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Introduction To Relay
INTRODUCTION TO TRANSISTORS
Inverter 12V to 220V 100W by Transistor
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Light sensor using photo diode
Line Following Robot Sensor
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Long duration timer circuit.
low and high voltage cut circuit
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Mains Powered White LEDs using Resistor only
Make a 25 Amp Solar Battery Charger Power Supply Circuit
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Making a Subwoofer Crossover Network
metal detector circuit
Micro Sized Amplifier Circuit Diagram
Midnight Security Light
Mini Ups System
Mobile cellphone charger
Mobile Jammer Circuit
Motor Bike Brake Horn
Motor Controller using transistors.
MOTOR PWM CIRCUIT
Motor Turn Stall Detector
Music transfer by IR by amplification
Night security light circuit
Outdoor Lighting Controller
Over voltage Protection for Logic Circuit Diagram
Parking sensor circuit
Peak Indicator Circuit
Petrol/Diesel Level Sensor
Photoelectric smoke detector circuit using RE46C190
Piezo Buzzer Driver Circuit Diagram
PIR Sensor Based Security System
Plant moisture level monitor
Police Lights associate crystal rectifier Project
Power Amplifier Genneral Purpose by IC TDA2030
Power supply
Power Supply for Walkie-Talkies
Power-Saving Relay Driver Circuit Diagram
Precision Full-Wave Ac-Dc Converter Circuit Diagram
Pure Sine Wave Inverter
Pyro Electric Fire Alarm
REGULATED POWER SUPPLY
Remote controlled appliance switch circuit
Remote Operated Home Appliances
Reset Protection For Computers Circuit Diagram
Reverse Lamp Dimmer Circuit for Simulating Sunrise Effect
RF Remote Control Encoder and Decoder Chip Pinouts Explained
Room Noise Detector Schematic Circuit
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Security system
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Simple 1000W Power Inverter circuit
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Simple 12 Volt Day Night Switch
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simple Acoustic Sensor-Circuit Diagram
Simple Audio Power Amplifier Circuit
Simple Automatic Curtain Opener Circuit Diagram
Simple Automatic Emergency Lamp Circuit
Simple Comparator with time out Circuit Diagram
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SIMPLE ELECTRONIC CODE LOCK
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Simple GSM Cell Phone Jammer Circuit Diagram
Simple L200 Charger
Simple Lithium Ion Charger 2 Cell Circuit
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Simple Mobile Phone Jammer Circuit Diagram
Simple Mobile Voltage Regulator Circuit Diagram
Simple Music operated Dancing Light Circuit
Simple Park Assist Circuit Diagram
Simple Portable battery Powered USB Charger Circuit
Simple Portable Solar Lantern Circuit
Simple Relay Output Proximity Sensor Circuit
Simple Rf Output Indicator Circuit Diagram
Simple Signal Injector Circuit Diagram
Simple Stethoscope Circuit Diagram
Simple Temperature Sensor + Arduino
Simple Temperature Sensor Circuit using 1N4148 diode
Simple Touch Sensitive Switch Circuit
Simple Transistor Latch Circuit
Simple Transmission Indicator Circuit Diagram
Simple Triac Dimmer Circuit
Simple Triangle wave
Simple Two 555 Timers Bell Circuit Diagram
Simple UPS
Simple Voltage to Current Converter Circuit
Simplest Single Phase Preventor Circuit for Three Phase Motor Potection
Simplest Transformerless LED Drivers
Simulated inductor Circuit Diagram
Single chip metal detector circuit
Solar Charger Circuit Project Using Transistors
Solar Powered SLA Battery Maintenance
Soldering Iron Inverter
Sound Operated Light
Sound Operated Music Bell
Square wave Generator Circuit
Step Up Converter
Step up Down DC - DC Converter Circuit Diagram
Telephone In-Use Indicator
Temperature controller
Temperature warning indicator circuit
Tester for 74xx04 and 74xx14 ICs Circuit Diagram
Tester for Inductive Sensors
TESTING AN unknown TRANSISTOR
The multi-purpose Amplifier using TDA2030
Thermostat Heating System
Tiny Dew Sensor Circuit Diagram
Touch Activated Alarm System
Touch Activated Security System
Touch Based Blinking Lights
TRANSFORMER LESS POWER SUPPLY
Transistor intercom circuit
Tunable Bandpass Filter Circuit Diagram
TV Remote Jammer Using 555 IC Circuit Diagram
UNDERSTANDING LIGHT EMITTING DIODES( LEDs)
USB 5V to 12V DC-DC Step-Up Converter by LT1618
USB Cell Phone Charger
USB Powered Mobile Phone Charger Circuit
Using Home Music Power Amplifier Circuit Diagram
Using IC 555
Using IC 555 Burglar Alarm Circuit Diagram
Using Lm 358 Siren Alarm Circuit Diagram
Using LM3914 Test a car battery voltage Circuit Diagram
Using TDA1562Q 54 W Amplifier Circuit Diagram
Using TE555-5 LED FX LED Circuit Diagram
Variable power supply
Vibration sensors Circuit Diagram
Voltage Doubler Circuit
Voltage Inverter Circuit Using IC NE555
Voltage Stepper
WATER LEVEL INDICATOR
Water-Level Controller
Water-Tank Level Meter Sensor
Whistle Remote Control Circuit - Appliances ON/OFF through Whistle
with Adjustable Timing Facility
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Simple 1000W Power Inverter circuit
40 LED Bicycle Light Circuit Diagram Using 555 IC
Voltage Inverter Circuit Using IC NE555
Extend Timer Range For The 555
IC 555 Design Note
TV Remote Jammer Using 555 IC Circuit Diagram
Simple Two 555 Timers Bell Circuit Diagram
simple Acoustic Sensor-Circuit Diagram
Water-Tank Level Meter Sensor
LM35 Temperature Sensor Circuit Diagram
Simple Temperature Sensor Circuit using 1N4148 diode
Vibration sensors Circuit Diagram
How to Using Diodes as a photosensor Circuit diagram
Build a Passive Infrared Sensor Circuit
Room Noise Detector Schematic Circuit
Tiny Dew Sensor Circuit Diagram
Simple Park Assist Circuit Diagram
Shutter Guard Circuit diagram
Fog Lamp Sensor-Circuit Diagram
Colour Sensor Circuit
Tester for Inductive Sensors
Simple Temperature Sensor + Arduino
Sensor and Detector Liquids Circuit
Line Following Robot Sensor
Simple Relay Output Proximity Sensor Circuit
Simple Dual Trace Scope Switch Circuit
Simple Comparator with time out Circuit Diagram
Simple Voltage to Current Converter Circuit
Frequency to voltage converter using LM331
Battery charger circuit using L200
Simple Lithium Ion Charger 2 Cell Circuit
100Khz Multiple Output Switching Power Supply Circuit
Infrared Proximity Detector Circuit
Sawtooth to Triangle Converter for Oscillator Circuit
Simple Portable Solar Lantern Circuit
Controller of Solar charger Circuit
Class-A amplifier Circuit Diagram
5W Audio Amplifier With Ac Power Supply Circuit
Using TE555-5 LED FX LED Circuit Diagram
Battery Charger for 12v SLA Project
USB Powered Mobile Phone Charger Circuit
Simple Portable battery Powered USB Charger Circuit
Using LM3914 Test a car battery voltage Circuit Di...
Home security monitor system Circuit Diagram
Simple Automatic Curtain Opener Circuit Diagram
Lead Acid Battery Charger Circuit
Micro Sized Amplifier Circuit Diagram
Simple Rf Output Indicator Circuit Diagram
Reset Protection For Computers Circuit Diagram
20W 1296Mhz Amplifier Module Circuit Diagram
Using Home Music Power Amplifier Circuit Diagram
Cheap cost Universal charger for NiCD - NiMH batte...
Battery operated emergency light Circuit Diagram
12 Vdc Battery Operated 120 Vac Power source Circu...
A Handy Pen Torch Circuit Diagram
Battery operated emergency light Circuit Diagram
Tester for 74xx04 and 74xx14 ICs Circuit Diagram
Simple Transmission Indicator Circuit Diagram
Using IC 555 Burglar Alarm Circuit Diagram
Simulated inductor Circuit Diagram
Using Lm 358 Siren Alarm Circuit Diagram
Low cost LM358 op-amp Audio Amplifier Circuit Diagram
Power-Saving Relay Driver Circuit Diagram
Simple Stethoscope Circuit Diagram
Simple Ac line Voltage Announcer Circuit Diagram
4-Channel Selector Stereo Audio Circuit Diagram
IC LM3914 Battery Monitor Circuit Diagram
Using TDA1562Q 54 W Amplifier Circuit Diagram
Cell Phone Jammer Circuit Diagram
Simple Mobile Voltage Regulator Circuit Diagram
Simple GSM Cell Phone Jammer Circuit Diagram
Cell Phone Jammer RF Amplifier Circuit Diagram
Simple Mobile Phone Jammer Circuit Diagram
Full Power Mobile Phone Jammer Circuit Diagram
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0-30 Volts - 2-5A Variable Power Supply Circuit Di...
3- Rail Power supply Circuit Diagram
12V 50W Switching Regulator Circuit Diagram
12 Volt / 2 A Switching Power Supply Circuit Diagram
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LOW-COST HEARING AID
1KVA (1000 watts) Pure Sine Wave Inverter Circuit
500 Watt Pure Sine Wave Inverter Circuit
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