| 摘要 |
A device and a method trigger a piezo actuator by use of a DC/DC converter supplying a supply voltage at the output end, the supply voltage is applied to a series connection encompassing a high-side switching transistor and a low-side switching transistor. A series connection containing a high inductance coil and the piezo actuator that is to be triggered is disposed between the junction of the two switching transistors and a reference potential. An excitation signal having a predefined pulse duty factor (effective voltage) and a predefined switching frequency is applied to the junction in order to charge or discharge the piezo actuator.
|
