This is the list of electronic parts needed for the Megapower circuit. Note that the links to suppliers should help you to find the right components. However we have no control over their inventory. Therefore it is possible that some of the parts are not available anymore or (even worse) some parts have been changed. Therefore it is important, that you check again that you order the right components.

Electronic parts

Mains transformer

In addition you will need a mains transformer with two secondaries and the necessary power rating. For HiFi use I would recommend 1 transformer with 2x24V secondaries and 150W power rating (for a stereo pair). If you use Megapower as the power stage for the SinCos circuit, check what voltage is needed for your motor and use the same voltage for the transformer. This gives you enough headroom, because the peak voltage of the secondaries will be 1.4 x secondary voltage.

Heat sink

Also the LM3886 always need a heat sink. The necessary thermal resistance highly depends on your use case. For motors I’ve used very small heatsinks. Check out this picture from the data sheet:

If you’re not sure, ask in our forum. You should know what voltage your are using and what the resistance of your load is.