Hi I am working on a high current boost converter delivering max 200V 2 mA from 14-20VDC
And with low Rushing and peak currest when enabling the device (<50mA) becaus I can only have an 80mA Fast fuse at the input.
I have a circuit with LM5022 which is workin a bit after playing with components but the caculations around it does not mach my values.
and the power consumptio of the circuit is higher tha I would expect. At 1mA output current I have about 40 mA input current.
I know the device uses<4mA so lots of energy gets lost.
I have some trouble defining the L and Current sense resistor. I expect I would calulate this current sense resitor for about 20 times Iout so 40 mA
Am I correct this would mean 0.5V/0.04=12.5 ohm?
What value for the L would I need if this is correct?