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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...
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 ...
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 ...
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Cell Phone Jammer RF Amplifier Circuit Diagram
This is a simple Cell Phone Jammer RF Amplifier Circuit Diagram. This cellular Phone Jammer RF Amplifier Circuit Diagram see below circuit and make it.
Cell Phone Jammer RF Amplifier 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
20W 1296Mhz Amplifier Module Circuit Diagram
24 volt Lead Acid Battery Charger
2km Long Range FM Transmitter
3- Rail Power supply Circuit Diagram
4 - 20 mA current signal in Instrumentation
4-Channel Selector Stereo Audio Circuit Diagram
40 LED Bicycle Light Circuit Diagram Using 555 IC
500 Watt Pure Sine Wave Inverter Circuit
555 Amplifier Circuit
5W Audio Amplifier With Ac Power Supply Circuit
7 SEGMENT DISPLAY COUNTER / INCOMING PERSON COUNTER
7812 Voltage Regulator Power Supply Citcuits
9V Automatic Battery NiCd Charger
9V to 13.5kV Inverter Circuit
A Car Battery Monitor
A Charge Pump Circuit Diagram
A Handy Pen Torch Circuit Diagram
AC Mains Voltage Stabilizer Circuit
Adjustable Power Supply 0-15V / 5A Circuit Diagram
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
Battery Juicer
Battery Level Indicator
Battery operated emergency light Circuit Diagram
Battery Voltage monitor
Battery-Powered Night Lamp
Best Audio Compressor Circuit Diagram
Blown Fuse Monitor Circuit
Build a Passive Infrared Sensor Circuit
Build a Scanner Voice Squelch Circuit Diagram
CAPACITOR FED POWER SUPPLY.
Car Battery 12v Charger
Cell Phone Jammer Circuit Diagram
Cell Phone Jammer RF Amplifier Circuit Diagram
Charging a Laptop from a Car Battery - DC Laptop Charger Circuit
Cheap 12V to 220V Inverter
Cheap cost Universal charger for NiCD - NiMH batteries Circuit Diagram
Class-A amplifier Circuit Diagram
Colour Sensor Circuit
COMPONENTS AND THEIR SYMBOLS
Controller of Solar charger Circuit
Current Power Supply Circuit Using IC L200
DC to DC Double Cell Phone Charger Circuit
DC-to-DC AC Inverter Circuit Diagram
Deriving High Current from 7805
Digital Voltmeter and Ammeter Circuit Module
Digital Voltmeter Circuit
Door bell circuit
DTMF Decoder
DTMF Proximity Detector
Dual Power Supply
Electronic Water Pressure Switch Circuit
Electronics timer switch
Extend Timer Range For The 555
Fire alarm circuit.
FM Beacon Broadcast Transmitter (88-108 MHz) Circuit
Fm Transmitter
Fog Lamp Sensor-Circuit Diagram
Frequency to voltage converter using LM331
Full Power Mobile Phone Jammer Circuit Diagram
Gain and Volume Adjustment for Balance Input
Headphone Amplifier with IR Communication
Hi-Fi audio amplifier by ic TDA2003
Home security monitor system Circuit Diagram
How to build Analog Milliamp Meter Used as Voltmeter
How to build Automatic 12 Volt Lamp Fader
How to build Decibel Meter
How to build Fading Red Eyes
How to Build Long Loopstick Antenna
How to Make a FM Remote Control Using a FM Radio and a Homemade FM Transmitter Circuit
How to Make a Remote Control Circuit from a Remote Bell Unit
How to Make an Infra Red (IR) Remote Controlled Motor Circuit
How To Test a Diode
How to test an LDR
HOW TO USE BREADBOARD (FOR BEGINNERS)
How to Using Diodes as a photosensor Circuit diagram
Humidity detector circuit
IC 555 Design Note
IC LM3914 Battery Monitor Circuit Diagram
Ice warning and lights reminder circuit diagram
Infrared Proximity Detector Alarm
Infrared Proximity Detector Circuit
Infrared sensor
Introduction To Relay
INTRODUCTION TO TRANSISTORS
Inverter 12V to 220V 100W by Transistor
Laser Beam Light Activated Remote Control Circuit
Latch Debouncer Switch Circuit Diagram
Lead Acid Battery Charger Circuit
LED Christmas Lights Circuit
Li-Ion Battery Charger Circuit Using IC LP2951
Light sensor using photo diode
Line Following Robot Sensor
LM35 Temperature Sensor Circuit Diagram
Long duration timer circuit.
low and high voltage cut circuit
Low cost LM358 op-amp Audio Amplifier Circuit Diagram
LOW-COST HEARING AID
Mains Powered White LEDs using Resistor only
Make a 25 Amp Solar Battery Charger Power Supply Circuit
Make a Hi-End RF Remote Control Circuit
Make this Electronic Ignition Circuit
Making a Home Theater System Using IC TDA 7560
Making a Simple 1.25 to 35v Variable Power Supply Circuit Using IC LM338
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
Sawtooth to Triangle Converter for Oscillator Circuit
Security system
Sensor and Detector Liquids Circuit
Servo Tester and controlling Circuit
Simple 1000W Power Inverter circuit
Simple 12 -16V Converter Circuit Diagram
Simple 12 Volt Day Night Switch
Simple 8V From 5V Regulator Circuit Diagram
Simple Ac line Voltage Announcer Circuit Diagram
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
Simple Dag-gerboard Position Detector
Simple Door Bell Timer
Simple Dual Trace Scope Switch Circuit
Simple Electronic Candle Circuit
SIMPLE ELECTRONIC CODE LOCK
Simple Field Strength Meter Circuit
Simple Fish Caller Circuit
Simple Frequency Meter
Simple GSM Cell Phone Jammer Circuit Diagram
Simple L200 Charger
Simple Lithium Ion Charger 2 Cell Circuit
Simple low/high voltage cut circuit
Simple Mini Power Inverter
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
Adjustable Power Supply 0-15V / 5A Circuit Diagram
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
0-30 Volt Power Supply
DC-to-DC AC Inverter Circuit Diagram
LOW-COST HEARING AID
1KVA (1000 watts) Pure Sine Wave Inverter Circuit
500 Watt Pure Sine Wave Inverter Circuit
Pure Sine Wave Inverter, Using IC 555
How to Make an Infra Red (IR) Remote Controlled Mo...
How to Make a FM Remote Control Using a FM Radio a...
Make a Hi-End RF Remote Control Circuit
How to Make a Remote Control Circuit from a Remote...
RF Remote Control Encoder and Decoder Chip Pinouts...
Remote Operated Home Appliances
Laser Beam Light Activated Remote Control Circuit
4 - 20 mA current signal in Instrumentation
DC to DC Double Cell Phone Charger Circuit
Make a 25 Amp Solar Battery Charger Power Supply C...
Charging a Laptop from a Car Battery - DC Laptop C...
Li-Ion Battery Charger Circuit Using IC LP2951
Simple Door Bell Timer, with Adjustable Timing Fac...
Simple Transistor Latch Circuit
Simple Music operated Dancing Light Circuit
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