公开(公告)号：US20040051421A1

公开(公告)日：2004-03-18

申请号：US10619482

申请日：2003-07-16

Applicant: C.R.F. SOCIETA CONSORTILE PER AZIONI

Inventor： Mario Montuschi ,  Eugenio Faggioli ,  Paolo Reggio

IPC: H01L041/09

CPC classification number: F02D41/2096 ,  F02D2041/201 ,  F02D2041/2051 ,  F02D2041/2082

Abstract: The system makes it possible to control at least one piezoelectric actuator having a capacitive impedance and includes a source of voltage, a control circuit branch in parallel with the source, in which the actuator is connected in series to two electronic switches each having a respective parallel diode; an energy accumulating inductor with one terminal connected between the said switches and the other connected to the voltage source; and an electronic unit operable to control the said controlled switches according to predetermined modes of operation.

Abstract translation: 该系统使得可以控制至少一个具有电容性阻抗的压电致动器，并且包括电压源，与源并联的控制电路，其中致动器串联连接到两个电子开关，每个电子开关具有各自的平行 二极管; 一个蓄电电感器，一个端子连接在所述开关之间，另一端连接到电压源; 以及电子单元，其可操作以根据预定的操作模式来控制所述受控开关。