How does IGBT compare to other charger technologies?
A Ferroresonant charger is capable of charging only one battery voltage. It has a relatively low efficiency rating. An SCR charger has multi-voltage capability; however the power factor varies depending on the specific battery voltage being charged. An IGBT charger is also multi-voltage, with a high power factor across the range of battery voltages. The IGBT system monitors the battery voltage response more than 10,000 times per second and safely maximizes the charging current without significant losses.