公开(公告)号：EP2280468A1

公开(公告)日：2011-02-02

申请号：EP10170644.8

申请日：2010-07-23

Applicant: STMicroelectronics S.r.l.

Inventor： Amighini, Matteo ,  Poma, Alberto ,  Di Biase, Giuseppe ,  Poletto, Vanni

IPC: H02H5/10 ,  H02M1/32

CPC classification number: H02H5/10 ,  H02H7/12 ,  H02M3/156 ,  H02M2003/1555

Abstract: An electronic circuit (100) is disclosed, comprising a node (EX), which connectable to a load (LD) to be driven and a power device (PD), which can be switched between activation and deactivation and having a first terminal connected to said node. The circuit further comprises:
a current generator (I) having an output connected to said node and that can be enabled to generation, at least when the power device is deactivated;
a comparator (CP) of an electric voltage of said node (V(EX)) with a reference voltage (V(REF)) configured to obtain comparison signals (RESETN), from which distinct conditions of electric connection of the load to said node will be detected.

Abstract translation: 公开了一种电子电路（100），其包括可连接到待驱动的负载（LD）和功率器件（PD）的节点（EX），其可以在激活和去激活之间切换，并且具有连接到 说节点。 所述电路还包括：电流发生器（I），其具有连接到所述节点的输出，并且至少当所述功率器件被去激活时，所述电流发生器（I）能够被产生; 配置为具有参考电压（V（REF））的所述节点（V（EX））的电压的比较器（CP），以获得比较信号（RESETN），从而从负载到所述节点的电连接的不同条件 将被检测到。