摘要 |
The actuator (300) has four nodes (301-304), where a collector (331) and an emitter (332) of a transistor (330) are connected with the first and fourth nodes, respectively. A cathode (341) and an anode (342) of a diode (340) are connected with the first and fourth nodes, respectively. A collector (351) and an emitter (352) of another transistor (350) are connected with the fourth and second nodes, respectively. A cathode (361) and an anode (362) of another diode (360) are connected with the fourth and second nodes, respectively. A coil (370) is arranged between the third and fourth nodes. The transistors are designed as Insulated gate bipolar transistors (IGBTs). Independent claims are also included for the following: (1) a method for operating a two-quadrant actuator (2) a drive circuit for an electric drive. |