I'm designing a stereo tube amp for my '74 MGB.
There will be two channels of the schematic below.
Requirements are:
-12VDC input, 25A max available
-200VDC - 300VDC output, 400mA max required
I'm looking at using two LTC3862 step up controllers in boost mode, but am worried about max duty cycle limitations.
Anyone have any ideas on a good step up converter? Would prefer to stay away from a fly-back converter due to space limitations.
Cheers,
-Brad
There will be two channels of the schematic below.
Requirements are:
-12VDC input, 25A max available
-200VDC - 300VDC output, 400mA max required
I'm looking at using two LTC3862 step up controllers in boost mode, but am worried about max duty cycle limitations.
Anyone have any ideas on a good step up converter? Would prefer to stay away from a fly-back converter due to space limitations.
Cheers,
-Brad
Attachments
Are you going to replace the 19.4uH inductors with 19.4uH primary side transformers to get the 300V without needing to design with 400V FET's?
I used one of these two phase controllers to try for 1.2V @ 40A (only got 25A but that was a diode issue...should have used synchronized rectification signal that was available)
Fly-back is easier (IMO) and the controller you are looking at seems to be able to convert more than your power requirements.
Research well and I would like to see the pictures when you're done.
I used one of these two phase controllers to try for 1.2V @ 40A (only got 25A but that was a diode issue...should have used synchronized rectification signal that was available)
Fly-back is easier (IMO) and the controller you are looking at seems to be able to convert more than your power requirements.
Research well and I would like to see the pictures when you're done.
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