ECE PROJECTS

      
 

     

 

 

 

 Electronics Projects

   

Power Supply Circuits

Power Supply Circuit # 1

Power Supply Circuit # 2

Regulated Power Supplies

Negative/Positive DC Supplies

Multiple +/- DC Supplies

Shunt Voltage Stabilizers

Series Voltage Stabilizers

Op Amp Voltage Regulator

DC Voltage Polarity Inverter

DC Voltage Ripple Remover

Low-to-High DC Voltage Converter

Low-Cost Buffered Voltage Reference
 

Audio/RF Circuits

Microphone Pre-Amplifier

LM380-Based Audio Amp Circuits

Simple Audio Amplifier

Non-Inverting AC Amplifier

Inverting AC Amplifier

Simple Audio Mixer

Op Amp-based Low Pass Filter

Op Amp-based High Pass Filter

Butterworth Low Pass Filters

Butterworth High Pass Filters

Tunable Band Pass Filter

Wien Bridge Notch Filter

Twin-T Notch Filter

Peaking Amplifier
 

Tone/Wave Generators

Audible Metronome

555-based Warbler Siren

555-based Tone Burst Generator

556-based 3-Mode Tone Generator

555-based Toy Organ

Voltage-Controlled Oscillator (VCO)

Sine Wave Generator

Quadrature Oscillator

Function/Waveform Generator

Variable Frequency Tone Generator
 

Switching Circuits

Touch-Triggered Switch

555 Timer Switch Debouncer

Digital Reset Switch

Flip-flop Transistor Circuit

SCR Equivalent Transistor Circuit
 

Timing Circuits

Basic Monostable Multivibrator

Basic Astable Multivibrator

Op Amp Square Wave Generator

Op Amp Monostable Multivibrator

555 Timer Astable Multivibrator

555 Timer Monostable Multivibrator

Dual-Frequency PLL Oscillator

Frequency Divider

Math Function Circuits

Non-inverting Amplifier

Op Amp Differentiator Circuits

Op Amp Integrator Circuits

Absolute Value Circuit

Voltage Doubler

Voltage Squaring Circuit
 

Sensing Circuits

Op Amp-based Sound Detector

Light-Activated Buzzer

Darkness-Activated Buzzer

Light-Controlled Oscillator

Comparator-based Light Detector

Water Level Sensing Circuit

Flame/Fire Detecting Circuit

LM335-based Temperature Sensor
 

Event Detection Circuits

Digital Counter Circuits

Missing Pulse Detector

Peak Voltage Detector

Event Interruption Alarm

Dual Op-Amp Window Comparator
 

Motor Control Circuits

Two-Transistor DC Motor Driver

Four-Transistor DC Motor Driver

4-Phase Stepper Motor Driver
 

Measurement Circuits

Op-Amp 'Bar Graph' Voltmeter

3914-based 'Bar Graph' Voltmeter

Low-Voltage AC Voltmeter

Bridge Transducer In-Amp

Simple Frequency Meter
 

Special Function Circuits

AC Lamp Flasher

Simple Logic Probe

Electronic Combination Lock

Sound-to-'Dancing Lights' Converter

9400 Voltage-Frequency Converter 1

9400 Voltage-Frequency Converter 2

9400 Frequency-Voltage Converter

Op Amp Summer DAC

R-2R Ladder Network DAC

Clipper / Inverting Clipper

Ultrasonic Transmitter

Ultrasonic Receiver
 
   

 Programming Projects