公开(公告)号：EP2237405A1

公开(公告)日：2010-10-06

申请号：EP10158288.0

申请日：2010-03-30

Applicant: STMicroelectronics S.r.l.

Inventor： Galbiati, Ezio ,  Peritore, Roberto ,  Bartolini, Michele ,  Mirabelli, Agostino

IPC: H02P6/08 ,  H02P6/22 ,  G11B5/55 ,  G11B5/596 ,  H02P25/02

CPC classification number: H02P6/08 ,  G11B5/022 ,  G11B5/5547 ,  H02P6/085 ,  H02P6/22 ,  H02P25/034

Abstract: There is described a control device for the change of the driving modality of an electromagnetic load (3); the electromagnetic load is passed through by a current (Ivcm). The device has at the input a control signal (L/P) to change the operation modality of an electromagnetic load (3) from a first operation modality (PWM) to a second operation modality (LIN) or vice versa and a signal (Tri_Peak, Tri_Mid) representative of the passage of current (Icvm) that passes through the load (3) for substantially its average value (IM). The device comprises first means (100, 201) adapted to synchronize the driving signal (L/P) for changing the first operation modality to the second operation modality or vice versa of the electromagnetic load with the signal (Tri_Peak, Tri_Mid) of the passage of current (Ivcm) passing through the load (3) for substantially its average value, and to generate a driving signal (S1p) as a function of said synchronization. ( Fig. 6 )

Abstract translation: 描述了用于改变电磁负载（3）的驱动模态的控制装置; 电流负载通过电流（Ivcm）。 该设备在输入端具有控制信号（L / P），以将电磁负载（3）的操作模式从第一操作模式（PWM）改变为第二操作模态（LIN）或反之亦然，信号（Tri_Peak ，Tri_Mid）代表通过负载（3）基本上其平均值（IM）的电流（Icvm）的通过。 所述装置包括适于使所述第一操作模态的驱动信号（L / P）与所述电磁负载的第二操作模态（或反之亦然）同步的通道的信号（Tri_Peak，Tri_Mid）的第一装置（100,201） 通过负载（3）的电流（Ivcm）基本上为其平均值，并且产生作为所述同步的函数的驱动信号（S1p）。 （图6）