Patent ID: 9537399
Date: 2017-01-03
CPC Classifications: H02M,H03K,Y02B

Claim:
1. A method for controlling a flow of direct current through an at least partially inductive load by way of driving a first semiconductor switch and a semiconductor freewheeling component, the method comprising: driving a control gate of the first semiconductor switch with a control current for controlling a resistance of a path between a load terminal connected to said at least partially inductive load and a supply terminal connected to a supply voltage source; and determining a predetermined time for adjusting the control current in a predictive manner, based on a measurement in one cycle for switching the first semiconductor switch, so as to anticipate a state change of the first semiconductor switch or the semiconductor freewheeling component; wherein, in a later cycle for switching the first semiconductor switch, adjusting the control current in order to alter the flow of current to said load terminal after said predetermined time, and wherein adjusting the control current comprises selecting parameters associated with the control current and providing these parameters to a timer comparator and to two or more charge or discharge switches for controlling the strength of the turn-on current and the strength of the turn-off current of the first semiconductor switch.