100W 2 x LM3886 Power Amplifier

PA100 GC – 100W per channel, 2x LM3886 in parallel power amplifier

This amplifier is based on the PA100 parallel amplifier detailed in National Semiconductor’s application note – AN1192.

Since my DIY speaker is 4-ohm and somewhat difficult to drive, I want to have a more powerful amplifier to match with it. Therefore I designed this amplifier which uses two LM3886 per channel, in parallel circuit. This amp can deliver about 50W into a 8-ohm speaker and 100W into a 4-ohm speaker. This is a stereo amplifier and therefore 4 LM3886s are used.

Source: Shine 7


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