This is a stereo audio amplifier circuit which will deliver 12W audio power output on each channel. This circuit built based on single IC TDA1521 or TDA1521Q, supported with a few external components. General purpose power supply can be used to operate this amplifier circuit, recommended voltage: 24VDC (asymmetrical). The TDA1521/TDA1521Q is a dual hi-fi… Read More »
This is a class AB 6-10W audio power amplifier circuit which built using a TDA2002 or TDA2003 power amplifier IC module. These are replacements for the original LM383 which is no longer available. It is easy to build and has a minimum of external components. The module has both short circuit protection and thermal protection.… Read More »
Here the circuit diagram of 25 watt Hi-Fi (high fidelity) audio amplifier that build based on single power amplifier IC LM1875 that should be run using heatsink attached on its. Components List: R1 _____________ 1K R2 _____________ 1M R3 _____________ 22K R4 _____________ 10K R5 _____________ 180K R6 _____________ 1R IC1 ____________ LM1875 C1 _____________… Read More »
This 2x10W audio amplifier circuit power output will be 10 watt on each channel with 4 ohm speaker resistance. The supply voltage required for this circuit is 8 – 24V DC at 1 to 2 Amps. Maximum output power will only be obtained with a power supply of at least 20V and greater than 1.5… Read More »
This is a 18 Watt audio amplifier circuit based on power IC HA13118. The supply voltage required for this circuit is 8 – 18V DC, at least 1 to 2 Amps. Maximum output power will only be obtained with a power supply of 18V at greater than 2 A, using a 4 ohm speaker. The… Read More »
This is an amplifier circuit with gain music output power up to 7W. It uses IC TDA2003 as main component. This 7 watt audio amplifier circuit is small but powerful multi purpose amplifier. IC TDA2003 provides a high output current capability (up to 3.5A) very low harmonic and cross-over distortion.
This is 1W stereo audio amplifier with LM386N. The output power is 1 watt for each channel, so it should be use two ICs of LM386N National Semiconductor for stereo channel. This circuit belongs to kitsrus.com and the kit is available there or at electronickits.com. This circuit only need 10mA current with best voltage supply… Read More »
This is the circuit diagram of 1W audio amplifier which use TDA7052 as the main component and other 5 pieces of components to support the main component. The ideal supply voltage of this circuit is about 6-12V and no heatsink required. The schematic is for mono audio channel, just build two similar circuit for stereo… Read More »
This 4W Audio Amplifier circuit is powered by 2 pieces of transistor TIP41. The circuit is very simple and incorporates darlington output transistors that will provide more than enough output current than is needed to drive a 3-ohm speaker. The 4W audio amplifier circuit is very simple and incorporates darlington output transistors that will provide… Read More »