公开(公告)号：US20030156363A1

公开(公告)日：2003-08-21

申请号：US10338817

申请日：2003-01-08

Applicant: STMICROELECTRONICS N.V.

Inventor： Koen Emiel Jozef Appeltans ,  Lucas Emiel Elie Vander Voorde

IPC: H02H007/00

CPC classification number: H02M7/125

Abstract: A protection device is provided for protecting a switching device that is able to control a current through an inductive load which is subject to a supply voltage, by switching a first and a second terminal of the inductive load to the respective pole of the supply voltage. The switching device is under control of a switching control device. The switching control device operates based on a predetermined algorithm. The switching device also includes flyback body diodes. The protection device includes measuring means for measuring a voltage level on a terminal of the load, and decision means for making a decision on switching the first terminal of the load if the measured voltage level exceeds the supply voltage. The protection device also includes instructing means for instructing the switching control device based on the decision for switching a first terminal of the load.

Abstract translation: 提供了一种保护装置，用于通过将感性负载的第一和第二端子切换到电源电压的相应极点来保护能够控制通过受电源电压的电感负载的电流的开关装置。 开关装置在开关控制装置的控制下。 开关控制装置基于预定算法进行动作。 开关器件还包括回扫体二极管。 保护装置包括用于测量负载端子上的电压电平的测量装置，以及如果所测量的电压电平超过电源电压则决定是否切换负载的第一端子。 保护装置还包括用于基于用于切换负载的第一端子的决定来指示切换控制装置的指示装置。