October 8, 2016, 9:00 pm
Power MOSFETs are widely used in switch mode applications such as pulse width modulated electrical motor controllers and switching mode power supplies. While they are also routinely used in linear mode applications such as power amplifiers and linear power supplies, standard MOSFETs are prone to secondary breakdowns due to hot-spotting or current focusing when operated in linear mode. Continue reading ‘Linear MOSFET and Its Use in Electronic Load’ »
Tags:
Current Focusing,
Electronic Load,
FBSOA,
Hot Spotting,
IRFP150N,
IXTK90N25L2,
IXYS,
Linear MOSFET,
LT1636,
SOA,
ZTC Category:
Electronics |
15 Comments
October 24, 2013, 1:42 pm
A while back I built a simple constant current electronic load using an aluminum HDD cooler case as the heatsink. While it was sufficient for a few amps’ load under low voltages, it could not handle load much higher than a few dozen watts at least not for a prolonged period of time. So this time around, I decided to build a much beefier electronic load so it could be used in more demanding situations. Continue reading ‘Building a Constant Current/Constant Power Electronic Load’ »