Circuit Lake

Electronic Project and Circuit Collection

Amplifier Related Resources

Digital Subwoofer Amplifier with Feedback

January 10, 2010 By: admin Category: Audio, Digital, Microcontroller, PIC, Project No Comments →

The project used interesting approach for reducing speaker distortion and increasing bass response. A dual coil speaker driver is used but only one of the coils is connected to the power amplifier – the other is used for electromotive feedback. This method is not new, but is difficult to implement in pure analogue world because […]

Stereo Super Ear Amplifier

February 04, 2009 By: admin Category: Analog, Audio, Electronic Kits No Comments →

The Super Ear is an ultra high gain stereo audio amplifier! And when we say high gain, we mean it! It boosts audio 50 times and you can listen to it in stereo besides! Miniature high sensitivity microphones are placed at 45 degree angles to give you maximum separation. This little kit also includes an […]

Class A Mosfet Headphone Amplifier

November 24, 2008 By: admin Category: Amplifier, Analog, Audio, Project No Comments →

This is a simple and low cost desktop headphone amplifier for the office. The amplifier concept is simple and follows a typical single-ended class A circuit utilizing an active constant current source (CCS) in place of a passive resistor. A CCS doubles the efficiency of the circuit over that where a passive load resistor is […]