Title:
PARALLEL EXCITATION DC MOTOR DRIVING DEVICE AND ELECTRIC EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2020/133637
Kind Code:
A1
Abstract:
A parallel excitation DC motor driving device and electric equipment. Wherein the parallel excitation DC motor driving device (100) comprises: a parallel excitation DC motor (10); a DC power supply (30); and a chopper (20), which converts a constant voltage into a variable voltage on the basis of a control signal and provides it to the parallel excitation DC motor, wherein, the chopper is provided with m chapping units (21), the control signal contains m unit control signals respectively corresponding to m chopping units and formed according to a predetermined phase staggering rule, each unit control signal comprises w switch control signals corresponding to w switch control terminals (2110) in the corresponding chopping unit, m first power supply output terminals (2211) of all chopping units and m second power supply output terminals (2212) of all chopping units respectively form corresponding m pairs of power supply output terminals (221), m pairs of external wiring terminals (151) of the parallel excitation DC motor and m pairs of power supply output terminals are connected in one-to-one correspondence, m is a positive integer not less than 2, and w is 1, 2 or 4.
Inventors:
JIN AIJUAN (CN)
LI SHAOLONG (CN)
LI SHAOLONG (CN)
Application Number:
PCT/CN2019/074395
Publication Date:
July 02, 2020
Filing Date:
February 01, 2019
Export Citation:
Assignee:
UNIV OF SHANGHAI FOR SCIENCE AND TECHNOLOGY (CN)
International Classes:
H02P7/292
Foreign References:
| CN107086831A | 2017-08-22 | |||
| CN107086830A | 2017-08-22 | |||
| CN106899245A | 2017-06-27 | |||
| CN102412777A | 2012-04-11 | |||
| JPH03273894A | 1991-12-05 |
Attorney, Agent or Firm:
SHANGHAI DANRONG & ZONGDE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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