Here I will share schemes PCB layout and parts list for the power amplifier class-d full-bridge IRS20957s, power amplifier scheme is designed by Mr.Kartino surodipo. By utilizing the Logic inverter CD4049 with two IRS20957 amplifier circuits it can be transformed into a full bridge amplifier circuit.
Following is the full-bridge power amplifier circuit scheme. You can download PDF versions that already have protection and indicators and limiter input.
And for the PCB layout, I designed using EasyEDA using SMD components which are still easy to obtain. You can download the part list, Gerber file at the end of the post.
I have tested this amplifier at 70VDC, can output about 1100W RMS at a load of 4 ohms. Enough power can be released by this amplifier with a small amplifier dimension.
Eurolive Fullbridge build and test
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