Also see with a component tester if the particular IXTP is DMOS indeed and not a relabeled fake.
received the IXTP01N100D from mouser, replaced the fake EMOS and the SSHV works fine but the output current only increases from 68mA to 75mA. Have to use one for each channel and need to buy a larger case.
Those IXTP parts to produce more mA ID it seems they also need higher VDS than it can be created for Q2 in their cascode. Double mono PSUs are at least a quality upgrade on the other side of the argument.
I am not sure if it makes any significant difference other than for below 20mA use. Maybe good as anode load for around 10mA.
The schematic is to shows how implement the Bias Multiplier, using other strongest Depletion Mosfet could do the trick Salas?
Regarding more impedance vs frequency it seems to help more in the low mA ranges. As it gives little more VDS across the lower Mosfet, maybe it can also help the mA max. Takes to try it.
I need some help,
accidentally shorted outputs to ground.
Power supply before the regulator works but the led on the regulator not working and no output power.
I was taking voltage readings on the pre amp and my meter prob slipped shorting to ground terminal.
Any body know where I should start on what component or components I may have killed.
accidentally shorted outputs to ground.
Power supply before the regulator works but the led on the regulator not working and no output power.
I was taking voltage readings on the pre amp and my meter prob slipped shorting to ground terminal.
Any body know where I should start on what component or components I may have killed.
Attachments
Hi, sorry for bad luck. Anyway, in post #1 there's a link to a troubleshooting example/dialog few posts long. Read that to find clues. In short you first make sure there's still a working CCS section then you check the voltage making section semiconductors. Vbe, Vgs, are health indicators.
