What is Body diode?
A parasitic diode formed between source and drain by the structure of a power MOSFET. It can serve as the freewheeling diode in an inverter, but its reverse recovery needs attention.
Field: Power semiconductors
Body diode in the explanations
Forward current through a SiC body diode can, via electron-hole recombination energy, expand basal-plane dislocations in the crystal into stacking faults, raising on-voltage (bipolar degradation); stacking faults are planar defects that impede conduction.
Which is a known cause of degradation when current flows co…Discrete parts tie the body to the source internally, so they look like three-terminal devices—which creates a parasitic body diode between source and drain.
Besides the gate, source and drain, what is the fourth term…In a power MOSFET, the p-type body tied to the source forms a pn junction with the n-type drift region, creating a parasitic diode that conducts from source to drain—the body diode.
What is the parasitic diode that forms structurally inside …
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Related terms
SiC (silicon carbide) Power MOSFET DC-DC converter Dead time Gate driver IGBT Normally-off On-resistance Short-circuit withstand time Snubber circuit