| 摘要 |
The invention relates to a circuit for the dynamic control of ceramic solid-state actuators such as piezo-electric translators with power recovery by means of magnetic buffer memories and/or memory capacitors as well as synchronized switches. According to the invention a predefined linear voltage curve at the level of the piezo-electric translator is achieved by connecting a single inductive buffer memory in series with the piezo-electric translator in the secondary circuit, which is configured as a half-bridge. The switches provided for in each half-bridge are controlled at a high elementary or switching frequency by an external controller. In addition, a superposed continuous bridge current flows through the piezo-electric translator and inductive buffer memory connected in series so as to ensure the desired charge of the capacity of the piezo-electric translator and optimize power recovery. |
