I'm trying to build a +/- 150V battery powered DC power supply variable power supply.
I have two of these 150V nixie power supplies: http://desmith.net/NMdS/Electronics/NixiePSU.html
And was thinking about putting two of them in series, and setting ground to the middle which gives me -150V and +150V. I would then feed these into two IRF740A MOSFETs (same as those used in the PSU). The IRF740s would then receive an external control voltage to control the output. In my mind the MOSFETs kind of work as a voltage divider. Here is the basic schematic:
Does this idea make sense? What have I missed?