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How to Check Which Region a MOSFET Is Operating In
Determine a MOSFET's operating region from VGS, VDS, threshold and the model equations, then verify the conclusion with current, temperature, and safe-operating-area limits.
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Power MOSFETs
How to Check Which Region a MOSFET Is Operating In
Determine a MOSFET's operating region from VGS, VDS, threshold and the model equations, then verify the conclusion with current, temperature, and safe-operating-area limits.
Power MOSFETs
Can You Replace a MOSFET With a BJT?
A BJT can replace a MOSFET only after redesigning the drive, bias, loss, switching, protection, and thermal behavior; it is rarely a drop-in substitution.
Power MOSFETs
Are All MOSFETs the Same?
MOSFETs differ in polarity, channel mode, voltage, current, resistance, charge, capacitance, package, thermal behavior, ruggedness, and intended application.
Power MOSFETs
Does Current Flow Through the Gate of a MOSFET?
A MOSFET gate draws almost no steady DC current in normal operation, but current flows while charging capacitances and through leakage, clamps, or faults.
Power MOSFETs
Can a MOSFET Switch AC?
A MOSFET can control AC, but a single device cannot block both polarities when off; back-to-back MOSFETs or a rectified topology are normally required.
Power MOSFETs
Do MOSFETs Have a Voltage Drop?
MOSFETs do have a voltage drop: in the on state it is mainly current multiplied by hot RDS(on), while switching and body-diode intervals introduce additional…
Power MOSFETs
Do MOSFETs Conduct in Both Directions?
A fully enhanced MOSFET channel can conduct current in either direction, but the intrinsic body diode makes blocking behavior directional when the device is off.
Power MOSFETs
What Is VTN in a MOSFET?
VTN denotes the threshold voltage of an n-channel MOSFET in many textbooks and compact models; it is a model or test-defined boundary, not the full-enhancement…