| 摘要 |
The control circuit includes an electronic switching element arranged in series with each winding cord of the motor, whereby the switching elements are controlled in dependence on a rotor position sensor, especially formed as a digital Hall-effect IC. Each winding cord is connected over respectively one decoupling diode with a common connection point. A protection transistor circuit is arranged in parallel to the winding cords and the pertinent decoupling diodes, which is controlled in such way, that voltage spikes caused by induction are eliminated. |
