REDUNDANT ENERGY ACQUISITION CIRCUIT OF POWER MODULE, AND CONTROL METHOD THEREOF

Title:

REDUNDANT ENERGY ACQUISITION CIRCUIT OF POWER MODULE, AND CONTROL METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/2019/149104

Kind Code:

A1

Abstract:

The present application provides a redundant energy acquisition circuit of a power module and a control method thereof. The power module comprises at least one power semiconductor device, a first capacitor, and a first branch circuit switch, and is characterized in that the redundant energy acquisition circuit of the power module comprises: a first power supply board acquiring energy from the first capacitor, supplying power to a control board, and charging a discharge circuit; a first charging circuit having one terminal connected to a positive electrode of the first capacitor and another terminal connected to the discharge circuit, and charging the discharge circuit when the power supply board is not operating normally; the control board controlling the discharge circuit to close; and the discharge circuit discharging and triggering the first branch circuit switch to close after the discharge circuit has been closed.

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Inventors:

XIE YEYUAN (CN)
LI HAIYING (CN)
JIANG TIANGUI (CN)
ZHU MINGLIAN (CN)
CAO DONGMING (CN)
ZHANG ZHONGFENG (CN)

Application Number:

PCT/CN2019/072533

Publication Date:

August 08, 2019

Filing Date:

January 21, 2019

Export Citation:

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Assignee:

NR ELECTRIC CO LTD (CN)
NR ENGINEERING CO LTD (CN)

International Classes:

H02M1/32

Foreign References:

CN108111007A	2018-06-01
CN106374767A	2017-02-01
CN102427270A	2012-04-25
CN106981973A	2017-07-25
CN201710228027A	2017-04-10

Other References: