smazzer
Newbie
Hi everyone. I'm struggling with a tedious question about recovery losses associated withe body diode of the freewheling switch.
Let's assume positive current entering the choke of a buck converter.
During the dead time, body diode of freewheeling switch is ignited. What happen when the freewheeling MOSFET (low side device) is then gated? Current is transferred from body diode to MOSFET, but what about reverse recovery? I think this contribution will be dissipated along the channel. It is true? This thing cannot be directly verified with any SPICE simulators, and is not mentioned explicitly in any scientific article that I've consulted.
What's your opinion?
Thanks in advance
SM
Let's assume positive current entering the choke of a buck converter.
During the dead time, body diode of freewheeling switch is ignited. What happen when the freewheeling MOSFET (low side device) is then gated? Current is transferred from body diode to MOSFET, but what about reverse recovery? I think this contribution will be dissipated along the channel. It is true? This thing cannot be directly verified with any SPICE simulators, and is not mentioned explicitly in any scientific article that I've consulted.
What's your opinion?
Thanks in advance
SM