Patent ID: 9318977
Filing Date: 2016-04-19
CPC Classification: H02M,H03K

Claim Text:
1. An actuating circuit comprising: a primary-side circuit part having an actuating logic circuit and a primary-side reference potential; at least one three level inverter having a negative voltage connection; a first secondary-side circuit part having a first driver stage for actuating a phase of one of said at least one three-level inverters, and a first semiconductor switch, each of said first secondary-side circuit part and said first semiconductor switch having a first secondary-side reference potential; a first level shifter connected to said primary-side circuit part and to said first secondary-side circuit part; a second secondary-side circuit part having a second driver stage for actuating a phase of one of said at least one three-level inverters, and a second semiconductor switch, each of said second secondary-side circuit part and said second semiconductor switch having a second secondary-side reference potential; a second level shifter connected to said primary-side circuit part and to said second secondary-side circuit part; a third secondary-side circuit part having a third driver stage for actuating a phase of one of said at least one three-level inverters, and a third semiconductor switch, each of said third secondary-side circuit part and said third semiconductor switch having a third secondary-side reference potential; a third level shifter connected to said primary-side circuit part and to said third secondary-side circuit part; a fourth secondary-side circuit part having a fourth driver stage for actuating a phase of one of said at least one three-level inverters, and a fourth semiconductor switch, each of said fourth secondary-side circuit part and said fourth semiconductor switch having a fourth secondary-side reference potential; and a fourth level shifter connected to said primary-side circuit part and to said fourth secondary-side circuit part; wherein said primary-side reference potential corresponds to said first secondary-side reference potential and is directly connected to said negative voltage connection of said three-level-inverter; and wherein at least said actuating logic circuit, said first and second level shifters and said first and second driver stages are monolithically integrated in a first HVIC.