Hi all,
I have a problem with a HV power supply for a tube tester
The circuit around the power mosfet don't work, no voltage at the output and all components are good !
See red circle)
J3 receive 12 VDC for the optocoupler circuit
J4 go to an ADC for measuring the output voltage
J5 dor to an ADC for measuring the current
J6 come from an DAC for setting the max current (0-5V)
J7 come from an DAC for setting the output voltage (0-5V)
I don't know what is wrong but no voltage at J2
maybe somebody have a typ
regards
Francis
I have a problem with a HV power supply for a tube tester
The circuit around the power mosfet don't work, no voltage at the output and all components are good !
See red circle)
J3 receive 12 VDC for the optocoupler circuit
J4 go to an ADC for measuring the output voltage
J5 dor to an ADC for measuring the current
J6 come from an DAC for setting the max current (0-5V)
J7 come from an DAC for setting the output voltage (0-5V)
I don't know what is wrong but no voltage at J2
maybe somebody have a typ
regards
Francis