Single-Supply Class D Amplifier Demo
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Uploaded by NBitWonder on May 17, 2011
We received a lot of feedback on the Class-D Amplifier experiment we showed last November, so we developed a follow-on project!
This version of the amplifier features faster gate drivers and a greatly improved board layout over the last version. It operates from a single power supply, reducing cost and complexity. The output is bridged, eliminating the need for large DC blocking capacitors while increasing output power. The parts for this project cost $32 (PCB and shipping excluded), which is not at all bad for a two-channel DIY amplifier that theoretically can achieve up to 50W per channel.
For more information, please visit http://nbitwonder.com.
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Uploader Comments (NBitWonder)
All Comments (4)
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Where did you turn it on? I didn't see a switch on the amp.
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@NBitWonder After watching it again I saw u used a transformer amd a couple of caps but no rectifier, that's probably the reason of the noise. Anyway very interesting amp! ;D
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The noise when you turned the amp on, is that the amp or the song?
DjViOd 5 months ago
@DjViOd The noise seems to come from the laptop power supply being used with this amplifier. When used with a different power supply, the noise doesn't occur.
NBitWonder 4 months ago