1 Watt Audio Amplifier Circuit using 7905 IC A simple stereo 1 Watt Audio Amplifier Circuit using 7905 IC is built around two 7905 negative-voltage regulators (IC1 and IC2) and a few discrete components. The 1 Watt Audio Amplifier Circuit will also work with other 79XX regulators if the appropriate power supply is used. Regulator IC … Read more
Stereo preamplifier tone control Circuit Here is the Stereo preamplifier tone control Circuit with TDA1524 IC which is an excellent stereo preamplifier with tone control using the IC Stereo preamplifier tone control Circuit with TDA1524 IC from Phillips. The TDA1524 IC requires very few external components, has very low noise and has a wide power … Read more
Multi-channel audio mixer circuit Multi-channel audio mixer circuit using LM3900 series amplifiers consist of four independent and internally compensated amplifiers that are designed for single and wide power supply voltage. These amplifiers provide a wide range of voltage inputs and very good response for all audio frequencies. They also provide a large output Range. … Read more
Wireless Earphones Transmitter Circuit This wireless headphones transmitter circuit provides a quality reception over 2 meters. The oscillator frequency is between 1750KHz and 3500KHz and for an antenna, we use a ferrite bar. IC1 amplifies the audio signal and TC1 is a buffer. D1 signals that the transmitter is on and is a voltage stabilizer for … Read more
40W amplifier Circuit 40W amplifier Circuit using TDA1514 IC, Many electronic circuits dealing with audio amplifier circuits have been published here. This is just another one and here we use the TDA 1514 high-performance hi-fi amplifier from Philips. The IC has a bunch of useful features like thermal protection, mute-standby facility, low harmonic distortion etc. The … Read more
Audio amplifier circuit using TDA2040 IC 30 watts audio amplifier circuit using TDA2040 IC, is a Class AB monolithic integrated audio amplifier available in Pentawatt package. The IC has low harmonic distortion, a low crossover distortion and has a built-in circuitry for short circuit protection. 30 Watts Audio amplifier circuit using TDA2040 IC 30 Watts … Read more
LED Lamp Dimmer Project Circuit Diagram In this LED Lamp Dimmer circuit, at the starting LED glow slowly, then grown brighter and once again slowly it became dim. The basis of the whole circuit is an operational amplifier IC named LM358. LM358 IC LED Lamp Dimmer Project Circuit Diagram LM358 IC is mainly made … Read more
Class D Amplifier IC BD5460 BD5460 is a low power Class D amplifier that can be used in low power applications like handheld audio devices. BD5460 does not require an LC filter at the speaker output and can be driven using a battery, The standby current of BA5460 is typically zero and there is no … Read more
Digital Volume Control Circuit Based on IC MAX5486 Digital Volume Control Circuit Based on IC MAX5486 is shown here. MAX5486 is a 40K dual digital volume/balance controller that has a pushbutton interface. The IC has a built-in bias voltage source that eliminated the need of an external circuitry for the same purpose and thereby by … Read more
Low Pass Filter Circuit using Op-amp Low Pass Filter Circuit using Op-amp TL062 for Subwoofer Pre Amp: The circuit given here is based on the opamp TL062 from ST Microelectronics. TL062 is a dual high input impedance J-FET opamp which has very low power consumption and high slew rate. The opamp has excellent audio characteristics and … Read more