公开(公告)号：US20030165072A1

公开(公告)日：2003-09-04

申请号：US10090281

申请日：2002-03-04

Applicant: International Rectifier Corp.

Inventor： Bruno C. Nadd ,  David C. Tam ,  Mark Pavier ,  Glyn Connah

IPC: H02M001/00

CPC classification number: H02P29/02 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/13055 ,  H01L2924/13091 ,  H02M1/32 ,  H02M1/36 ,  H02M1/38 ,  H02M7/003 ,  H01L2924/00014 ,  H01L2924/00

Abstract: A fully protected H-bridge for a d-c motor consists of two high side MOSFETs and a control and logic IC on a first conductive heat sink all within a first package and two discrete low side MOSFETs. The entire bridge is controlled by the IC. Shoot thru protection is provided for each leg, and a PMW soft start sequence is provided through the control of the low side MOSFETs, programed by an external, chargeable RC circuit. Input signals to the high side MOSFETs select the operation modes. Protective circuits are provided for short circuit current and over current conditions. Sleep mode and braking/non braking control is also provided.

Abstract translation: 用于d-c电机的完全受保护的H桥由两个高边MOSFET组成，第一导电散热器上的控制和逻辑IC都在第一封装和两个分立的低侧MOSFET内。 整个桥梁由IC控制。 为每条支路提供射击保护，通过控制低端MOSFET提供PMW软起动序列，由外部可充电RC电路编程。 输入高边MOSFET的信号选择工作模式。 为短路电流和过流条件提供保护电路。 还提供睡眠模式和制动/非制动控制。