Electrical generator control circuit reducing minimum output loading of three-phase generator running on light load is used for road vehicle starter-generator and uses transistor switches for each phase

摘要

The stator windings (2) of the three-phase electrical machine (1) may be short-circuited for short periods of time using pairs of transistor switches (S1-S6) connected (L1-L3) to each phase winding of the stator. The switches are connected to a control circuit (6). The excitation winding (3) is controlled by its own transistor (4).