RobertEagle
New Member
Hi guys,
I have a problem regarding a DC to DC converter circuit.
Firstly, the circuit is collecting the signals from 2 coils. The voltage on them is somewhere around 1000VAC. It's a sinusoidal form and the 2 signals when they're add look okay. I've used there some diodes, to get 1000VDC.
The problem is at the MOSFET. This one takes the 1000VDC signal and makes it around 0-17VDC depending on the potentiometer. The idea is that I get mostly no current at all at the output. The potential between the gate and source is 3.2Volts. In the datasheet it says that it should be greater than 4Volts.
Just for the record, I've tried measuring the output current using a resistor. What I got was 0.2mA at 17Volts.
I have here the circuit: **broken link removed**
And this is the MOSFET datasheet: https://datasheet.octopart.com/IRFBG30PBF-Vishay-datasheet-57413.pdf
Could somebody help me regarding this circuit?
Thank you in advance,
RobertEagle
I have a problem regarding a DC to DC converter circuit.
Firstly, the circuit is collecting the signals from 2 coils. The voltage on them is somewhere around 1000VAC. It's a sinusoidal form and the 2 signals when they're add look okay. I've used there some diodes, to get 1000VDC.
The problem is at the MOSFET. This one takes the 1000VDC signal and makes it around 0-17VDC depending on the potentiometer. The idea is that I get mostly no current at all at the output. The potential between the gate and source is 3.2Volts. In the datasheet it says that it should be greater than 4Volts.
Just for the record, I've tried measuring the output current using a resistor. What I got was 0.2mA at 17Volts.
I have here the circuit: **broken link removed**
And this is the MOSFET datasheet: https://datasheet.octopart.com/IRFBG30PBF-Vishay-datasheet-57413.pdf
Could somebody help me regarding this circuit?
Thank you in advance,
RobertEagle