4 x 45W Quad Bridge Audio Amplifier

4 x 45W Quad Bridge Audio Amplifier

This is an AB class audio amplifier based on the TDA7388 chip and it is a great choice for car audio applications. This compact board has 4 channels each 26W with 4 ohms speaker. Then IC consists of a fully complementary PNP/NPN configuration and the TDA7388 allows a rail-to-rail...

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Dual 105mW Headphone Amplifier with Digital Volume Control and Shutdown Mode

Dual 105mW Headphone Amplifier with Digital Volume Control and Shutdown Mode

This is a low noise Headphone Amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply. The project is based on the LM4811 chip from the boomer series. The board provides high-quality output power with a...

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2.5W Stereo Audio Amplifier using LM4752

2.5W Stereo Audio Amplifier using LM4752

The Stereo Audio Amplifier project shown here is capable of delivering 2.5W per channel of continuous average output power to 4Ω loads using a single 12V supply at 10% THD+N. The project is built using the LM4752 chip. This chip is specifically designed for single supply operations...

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Current-Sense Amplifier with Dual Over Current Level Monitor & Alert Output

Current-Sense Amplifier with Dual Over Current Level Monitor & Alert Output

The project presented here is a high common-mode current sense amplifier with two high-speed comparators to detect out-of-range current conditions. The comparators are configured to detect and respond to dual over current conditions. These devices feature an adjustable limit threshold...

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SPI Programmable-Gain Amplifier with Input VOS Trim and Output OPAMP

SPI Programmable-Gain Amplifier with Input VOS Trim and Output OPAMP

The project presented here is an SPI programable Gain Amplifier using MAX9939. The MAX9939 is a general-purpose, differential-input programmable-gain amplifier (PGA) that is ideal for conditioning a variety of wide dynamic range signals such as those found in motor current-sense,...

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Dual 40W Audio Power Amplifier with Mute

Dual 40W Audio Power Amplifier with Mute

The stereo audio amplifier project shown here is capable of delivering typically 40W per channel continuous average output power into an 8Ω load with less than 0.1% (THD+N). The project is built using an LM4766 chip from Texas Instruments, The performance of the LM4766, utilizing its...

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49W BTL 4 Channel Audio Power Amplifier

49W BTL 4 Channel Audio Power Amplifier

This is a 49W - 4 Channel audio amplifier project that is built using TB2941HQ power Integrated Circuit which has a built-in four-channel BTL amplifier developed for car audio applications. The maximum output power is 49W using a pure complementary P-Ch and N-Ch DMOS output stage. In...

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1.122
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10W Class-D Stereo Audio Amplifier with Mute, Shutdown and Four Gain Settings

10W Class-D Stereo Audio Amplifier with Mute, Shutdown and Four Gain Settings

This is a Class-D Stereo audio amplifier project that provides 10W stereo output. The amplifier includes Gain control using 2 x Jumpers, Mute function, and shutdown function. RCA female connectors are provided for the audio source input, screw terminals are provided for an easy...

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