Hi,
Just wondering if you could have a look at another section of the power supply.
I was going to use a transistor similar to the circuit I posted earlier but in light
of the fet circuit, I feel that would work better.
Not sure if this would work. Let me explain the usage.
I have +-16V (130mA) PSU and the module I want to power is +24V (110mA)
So I have decided to use a DC-DC converter.
**broken link removed**
However the in rush is causing the regs to shut off.
So I'm gonna use a constant current source. And then thought that maybe it would
be better if the dc converter started after the rails were up near full.
So, am I on right track with this circuit? Or is there a better approach.
The DC converter starts at 18V it states. So not sure it will start if current is limited to 130mA. I guess it depends how much it tries to draw on turn on. (240mA maybe in which case I think the voltage will drop to around 16V)
Any opinions/ideas welcomed!
http://i50.tinypic.com/2uetkdj.png
PS. the RC pin is a switch (when open, converter is off. When shorted it to -Vin the converter turns on (0-0.4)
(Also, not sure the best way to simulate the dc-dc converter, but when I've just added a resistor drawing around 240mA, the circuit appears to be very picky in regards to which MOSFET works correctly.)