I would like to generate 100V from one LiPo battery at a output current of 100 mA.
There are circuits with transformers but there are a bit bulky and expensive. The MCP1663 can generate 32V from 3.3V with one 10 uH coil and an output diode. Is there a nice way to build a cascade out of three MCP1663 where each output ground is connected with the output voltage of the lower stage to charge one common capacitor to 100V which can then draw 100 mA. Since there is no isolation to the input stage, what could be the problem?