MCPWM Driving H-Bridge setup
Posted: Thu Feb 24, 2022 7:18 pm
I'm digging into driving an H-bridge using the IRSM005, because that's what I can buy. It's just a simple gate driver, with only GPIO for each mosfet. Does anyone have a sample setup for this configuration?
From what I can tell, the four outputs will need to be synchronized to eliminate shoot through, but I don't see how this feature is configured.
One thought I have is to control the high side fets with traditional IO implementing direction control, and MCPWMing the low side fets for speed. Shoot through would then be handled in software.
As flexible as the MCPWM apprears, I would think that there would be built in logic to implement shoot through protection.
From what I can tell, the four outputs will need to be synchronized to eliminate shoot through, but I don't see how this feature is configured.
One thought I have is to control the high side fets with traditional IO implementing direction control, and MCPWMing the low side fets for speed. Shoot through would then be handled in software.
As flexible as the MCPWM apprears, I would think that there would be built in logic to implement shoot through protection.