Design & Reliability
Do MOSFETs on an RX 580 Need Cooling?
RX 580 graphics-card VRM MOSFETs need an effective thermal path, normally through thermal pads into the card's heatsink or a dedicated VRM plate with airflow.
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SiC & GaN
Where Are GaN Transistors Used?
GaN transistors are used where high switching speed, low charge, compact magnetics, and high power density justify specialized gate drive, layout, thermal, and EMI design.
Power MOSFETs
What Is a MOSFET Amplifier?
A MOSFET amplifier uses a field-effect transistor to increase signal voltage, current, or power in small-signal, RF, audio, and switching amplifier stages.
Design & Reliability
How Do Heat Sinks Cool MOSFETs?
A heatsink cools a MOSFET by conducting heat from the junction through the package and interface, spreading it through metal, and transferring it to moving…
Power Supply
How to Repair a Switch-Mode Power Supply Safely
Repair an SMPS by controlling hazardous energy, documenting symptoms, inspecting without power, testing protection components and stages methodically, and validating the repaired unit under controlled…
Design & Reliability
Can You Operate a Power MOSFET Close to Gate-Oxide Breakdown?
Do not operate a power MOSFET close to its gate-oxide breakdown or absolute maximum gate voltage; use recommended drive levels, transient margin, clamps, and low-inductance…
Power Supply
How to Select a MOSFET for a Buck Converter
Select buck-converter MOSFETs by calculating voltage stress, RMS current, conduction and switching loss, gate-drive compatibility, reverse behavior, thermal limits, package parasitics, and layout.
Power MOSFETs
What Is a MOSFET Used For?
MOSFETs are used as efficient electronic switches, amplifiers, load controllers, motor drivers, converter devices, protection elements, and the basic transistors in digital integrated circuits.