OK I just tested my mg400q1us41 igbts. I used the 12v battery method
they work . connected as follows for the test
1) connected the collector to a 12v bulb load. then to battery 12v battery pos.
2) connected the emitter to the battery neg terminal.
3) then I touched the 12v pos battery post to gate turn on IGBT "light on"
4) then touch battery negative post to gate turn off "light off"
OK perfect. now the question. How long will the igbt stay on
without any volt connected to gate?
is there any decay in the gate curcuit with out any volts applied?
or will it stay on indefinitly?
another issue , I noticed if I did not touch the gate to 12v pos for a long enough time, the bulb was only partially on.
Thus I became the resistor for the gate "my body " no direct connection eccept though me.
thank you for the answer
they work . connected as follows for the test
1) connected the collector to a 12v bulb load. then to battery 12v battery pos.
2) connected the emitter to the battery neg terminal.
3) then I touched the 12v pos battery post to gate turn on IGBT "light on"
4) then touch battery negative post to gate turn off "light off"
OK perfect. now the question. How long will the igbt stay on
without any volt connected to gate?
is there any decay in the gate curcuit with out any volts applied?
or will it stay on indefinitly?
another issue , I noticed if I did not touch the gate to 12v pos for a long enough time, the bulb was only partially on.
Thus I became the resistor for the gate "my body " no direct connection eccept though me.
thank you for the answer