Hello, a boost regulator after the stator doesn't really need an inductor, as we can exploit the stator itself for this purpose. Is my idea wrong? In practice I would "short" the stator via a MOSFET, which would be controlled by an oscillator. This way the peak voltage across the stator should become higher, without the need of the classical boost inductor. If it works, will it work also on the secondary of an AC transformer? Of course I will design the control logic to be very careful not to overload the source for a long time (I mean low % of duty cycle). Thanks for Your insights, Mario --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .