Multi-channel audio mixer circuit using LM3900 IC

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 Headphones Transmitter Circuit

Wireless Headphones Transmitter Circuit

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 using TDA1514 IC

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

30 Watts Audio amplifier circuit using TDA2040 IC

30 Watts Audio amplifier circuit using TDA2040 IC

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

Two Channel digital volume control circuit based on IC MAX5486

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 TL062 for Subwoofer Pre Amp

Low Pass Filter Circuit using Op-amp TL062 for Subwoofer Pre-amp

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

6 Watt Hi-Fi Audio Amplifier Circuit using TDA2613 IC

6 Watt Hi-Fi Audio Amplifier Circuit using TDA2613 IC 6 Watt Hi-Fi Audio Amplifier Circuit using TDA2613 IC: A 6 watt audio amplifier circuit using TDA2613 is shown here. TDA2613 is an integrated Hi-Fi audio amplifier IC from Philips Semiconductors. The IC is switched ON / switch OFF click proof, short circuit proof, thermally protected and … Read more

100W MOSFET Power Amplifier Circuit Diagram

100W-mosfet-power-amplifier-circuit

100W MOSFET Power Amplifier Circuit 100W MOSFET power amplifier circuit based on IRFP240 and IRFP9240 MOSFETs is shown here. The amplifier operates from a +45/-45 V DC dual supply and can deliver 100watt rms into an 8-ohm speaker and 160-watt rms into a 4-ohm speaker. 100W MOSFET power amplifier circuit this is Hi-Fi amplifier circuit is suitable … Read more