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发明授权
US07382065B2 Circuit for controlling inductive loads, in particular of electro actuators, at high efficiency 有权
用于以高效率控制电感负载，特别是电致动器的电路

Circuit for controlling inductive loads, in particular of electro actuators, at high efficiency
摘要：
The control circuit comprises a source of dc voltage, a first electronic switch, interposed between a first terminal of the voltage source and a corresponding first terminal of the load, a second electronic switch, interposed between the other or second terminal of the load and the other or second terminal of the source, a current recirculation device, including a diode connected between the said first terminal of the load and the other or second terminal of the voltage source to allow a circulation current in the load when the first switch is open, and a control circuit arranged to control the switches in a predetermined manner. The recirculation device further includes a third electronic switch disposed between the first terminal of the load and the other or second terminal of the voltage source, and the control unit is arranged to control this third switch in a synchronous manner, but in phase opposition, in relation to the first switch.
摘要（中）：

所述控制电路包括直流电源，插入所述电压源的第一端和所述负载的对应的第一端之间的第一电子开关，插入在所述负载的另一端或第二端之间的第二电子开关， 源极的另一个或第二端子，电流再循环装置，包括连接在负载的所述第一端子和电压源的另一端子或第二端子之间的二极管，以在第一开关断开时允许负载中的循环电流， 以及控制电路，被布置成以预定方式控制开关。 再循环装置还包括设置在负载的第一端子和电压源的另一端子或第二端子之间的第三电子开关，并且控制单元被布置成以同步方式控制该第三开关，但是相位相反地 与第一个开关的关系。

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