公开(公告)号：US09929556B2

公开(公告)日：2018-03-27

申请号：US14753103

申请日：2015-06-29

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Vanni Poletto ,  Manuel Gaertner ,  Sergio Lecce ,  Giovanni Luca Torrisi

IPC: H02H3/05 ,  H02H7/085 ,  H02H7/09 ,  H03K19/007 ,  H02H7/08

CPC classification number: H02H3/05 ,  H02H7/0844 ,  H02H7/0851 ,  H02H7/0852 ,  H02H7/09 ,  H03K19/007

Abstract: A fail-safe device may be coupled to a main device for actuating a switch responsive to a failure. The fail-safe device may include a fail-safe circuit, and an isolation trench surrounding the fail-safe circuit and isolating the fail-safe circuit from the main device. The fail-safe device may include an internal power supply connection, an internal reference voltage connection, a self-biased drive block configured to drive the at least one switch, and a receiver configured to receive failure signals from the main device.

公开(公告)号：US09595947B2

公开(公告)日：2017-03-14

申请号：US14797571

申请日：2015-07-13

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Vanni Poletto ,  Patrizia Milazzo ,  Sergio Lecce

IPC: H03K5/04 ,  H03K17/041 ,  H03K19/003 ,  H03K19/0175 ,  H03K17/042 ,  H03K17/16

CPC classification number: H03K5/04 ,  H03K17/04106 ,  H03K17/04206 ,  H03K17/166 ,  H03K19/00323 ,  H03K19/0175

Abstract: A driver device is for switching on and off a transistor for supplying a load by driving a control electrode of the transistor. The driver device includes a first terminal connected to the control electrode of the transistor, a second terminal connected between the transistor and the load, and a current-discharge path coupled to the first terminal. The current-discharge path includes a diode and is activated when the transistor is switched off. The diode becomes non-conductive to interrupt the current-discharge path when the voltage on the second terminal reaches a threshold value.

Abstract translation: 驱动器件用于通过驱动晶体管的控制电极来接通和关断用于提供负载的晶体管。 驱动器件包括连接到晶体管的控制电极的第一端子，连接在晶体管和负载之间的第二端子以及耦合到第一端子的电流 - 放电路径。 电流放电路径包括二极管，并且当晶体管关断时被激活。 当第二端子上的电压达到阈值时，二极管变得不导通以中断电流 - 放电路径。