Electronics

1 Watt audio amplifier for Mobile device

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About LM4890 1 Watt audio amplifier for mobile device has been designed using LM4890 power amplifier. LM4890 is primarily designed for mobile phones and other portable devices. It is capable of delivering 1 watt of continuous average power to an 8 ohm load from 5v power supply. It has a distortion of less than 1%. […]

Electronics

Audio Amplifier using LM386

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Audio amplifier using LM386 is a power amplifier designed to be used in low voltage consumer applications. Typical applications are like portable AM/FM amplifier, TV sound systems. It requires minimum external parts and operate from wide range of voltage starting from as low as 4 volt.Below is the version of the circuit designed by me […]

Electronics

1 Watt Audio Amplifier

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Audio AMPLIFIER 1 watt audio amplifier shown below is very simple and easy to make. You can use this in making pocket amplifier for your mp3 player. It can fit in small mactch box size box.   Parts List for making 1 watt audio amplifier Q1 Transistor – MPSW45A R1- 50 ohms R2- 10 K […]