公开(公告)号：US20180128652A1

公开(公告)日：2018-05-10

申请号：US15803116

申请日：2017-11-03

Applicant: Johnson Electric S.A.

Inventor： Chiping SUN ,  Qiubao WANG ,  Ken WONG ,  Enhui WANG ,  Haibo JIANG ,  Yunlong JIANG

IPC: G01D5/244 ,  H02P6/17 ,  F04D13/06 ,  G01D5/14 ,  H02P23/00 ,  G05B11/28

CPC classification number: G01D5/24409 ,  F04D13/06 ,  G01D5/145 ,  G05B11/28 ,  H02P6/17 ,  H02P23/0004 ,  H02P23/0077

Abstract: A motor-driven integrated circuit comprises a multiple-time programmable memory to store a motor driven program, a memory having a capacity larger than or equal to a capacity of the multiple-time programmable memory, and a central processing unit. When the motor-driven integrated circuit is powered or reset, the central processing unit copies the driven program from the multiple-time programmable memory to the memory.

公开(公告)号：US20180131300A1

公开(公告)日：2018-05-10

申请号：US15803229

申请日：2017-11-03

Applicant: Johnson Electric S.A.

Inventor： Chiping SUN ,  Qiubao WANG ,  Ken WONG ,  Enhui WANG ,  Haibo JIANG ,  Shujuan HUANG

IPC: H02P6/17 ,  H02P1/22 ,  F04D13/06 ,  G01D5/14 ,  H02P6/22 ,  H02K11/04 ,  H02P23/00 ,  G11B21/08

CPC classification number: H02P6/17 ,  F04D13/06 ,  G01D5/145 ,  G11B21/08 ,  H02K11/044 ,  H02P1/22 ,  H02P6/06 ,  H02P6/22 ,  H02P23/0004

Abstract: A motor-driven integrated circuit comprises a plurality of position comparators, a timer and a central processing. Each of the plurality of position comparators receives a pole detection signal denoted a position of a rotor of a motor. The timer receives a timing interrupt signal output by the plurality of position comparators when a predetermined edge of the pole detection signal is generated and records a time of the predetermined edge. The central processing unit obtains a rotation speed of the motor according to a time difference between two predetermined edges.

公开(公告)号：US20180131309A1

公开(公告)日：2018-05-10

申请号：US15803142

申请日：2017-11-03

Applicant: Johnson Electric S.A.

Inventor： Chiping SUN ,  Qiubao WANG ,  Ken WONG ,  Enhui WANG ,  Haibo JIANG ,  Yunlong JIANG

IPC: H02P29/024 ,  H02P27/08 ,  H02P6/17

Abstract: A motor-driven integrated circuit comprises a PWM output unit and an overcurrent comparator coupled with the PWM output unit. The overcurrent comparator receives a detection signal and compares the detection signal with a reference value. When the detection signal is larger than the reference value, the overcurrent comparator outputs an overcurrent protection signal to control the PWM output unit enter an overcurrent protection mode.