Anyone have a good circuit of measuring Rds ON on a FET vs junction temp.
N Thread Starter newb7777 Joined Mar 6, 2011 2 Sep 4, 2011 #1 Anyone have a good circuit of measuring Rds ON on a FET vs junction temp.
#12 Joined Nov 30, 2010 18,224 Sep 4, 2011 #2 I just put the victim inside a large ceramic wirewound resistor with a thermocouple beside it, add electricity to the big resistor so it heats up and measure the results. Put the answers on a piece of graph paper and you have what you need. A "curcuit" to do that is way beyond my skills.
I just put the victim inside a large ceramic wirewound resistor with a thermocouple beside it, add electricity to the big resistor so it heats up and measure the results. Put the answers on a piece of graph paper and you have what you need. A "curcuit" to do that is way beyond my skills.