Electronics and Electrical Engineering Projects

Featured electronics and electrical engineering design projects.

TAGS: Amplifiers

  • BU7150NUV Headphone Amplifier IC Evaluation Board

    Posted Sunday, August 13, 2017
    BU7150NUV-EVK-001(SE) is an evaluation board of BU7150NUV headphone amplifier IC. It designed to evaluate BU7150NUV in Single-Ended (SE) mode as an audio amplifier. In SE mode, the device is applicable... More
  • Thermocouple Auto-Zeroed Reference Design

    Posted Sunday, September 18, 2016
    The MCP6V01 Thermocouple Auto-Zeroed Reference Design demonstrates how to use a difference amplifier system to measure electromotive force (EMF) voltage at the cold junction of thermocouple in order to accurately... More
  • Photosynq - a fluorometer and spectroscopic tool for plant measurements

    Posted Friday, October 16, 2015
    This is a updated design for a device to measure various plant health parameters. All open source. We are looking for suggestions for improvements before we start production. More
  • Audio Amplifier Circuit using 555 Timer

    Posted Saturday, September 27, 2014
    Here this circuit is based on the principle of audio amplification using operational amplifier and pulse width modulation using 555 Timer. More
  • How 100W Subwoofer Amplifier Circuit Works?

    Posted Wednesday, June 04, 2014
    Here we designed a subwoofer amplifier producing audio signals at low frequencies from 20 Hz to 200Hz and with an output power of 100W, used to drive a 4 ohm load.More
  • MOSFET Power Amplifier Circuit Principle

    Posted Thursday, March 20, 2014
    Here, a power amplifier circuit has been designed using MOSFET to produce 100 W output to drive a load of about 8 Ω. More
  • 150W Power Amplifier Circuit

    Posted Wednesday, March 19, 2014
    Here we designed a power amplifier circuit using push pull class AB configuration to derive a power of 150W to drive a load of 8 Ohms (speaker). More
  • Loudspeaker Using OTL Amplifier

    Posted Wednesday, August 28, 2013
    The project is a relatively easy to build 30 W OTL Amplifier. Individuals who like to listen to music comfortably would find this project interesting. You can create your own... More
  • iPhone Loudspeaker Amplifier

    Posted Friday, May 24, 2013
    The iPhone Amplifier will provide up to 2.50W/CH at 9volts supply Audio input from a headphone jack. This provides sufficient power to drive a small set of speakers such as... More
  • Transistor as an Amplifier

    Posted Sunday, May 19, 2013
    Amplification is a process of increasing the signal strength by increasing the amplitude of a given signal with out changing its characteristics. Here we will concentrate how transistor is used... More
  • Short-Circuit Finder

    Posted Monday, February 04, 2013
    The sample tester in Figure.1 Detects short circuits on assembled pc boards and also rings out cables and harnesses.  More
  • 40 Volts Power Amplifier

    Posted Wednesday, December 19, 2012
    Make a power amplifier More
  • Voltage Controlled Amplifier

    Posted Monday, October 15, 2012
    A voltage controlled amplifier using 2 JFETS produces a simple linear voltage controlled amplifier. One salient characteristic is that the bandwidth is constant over gain changes. It can be controlled... More
  • Simulation and Transient Analysis of Analog PWM Input

    Posted Friday, August 03, 2012
    Creating discreet, transistor based analog PWM input circuit. Before creating the board IRL, I made software simulation. Here are the analysis results. More