Title:
BIDIRECTIONAL DC/DC POWER CONVERTER
Document Type and Number:
WIPO Patent Application WO/2018/149295
Kind Code:
A1
Abstract:
A bidirectional DC/DC power converter, in which a bypass switch is connected in parallel to a first resonant circuit on a left side and a second resonant circuit on a right side, respectively. When power is transmitted in a forward direction, a resonant inductor (Lres2) and a resonant capacitor (Cres2) in the second resonant circuit are bypassed; and when the power is transmitted in a reverse direction, a resonant inductor (Lres1) and a resonant capacitor (Cres1) in the first resonant circuit are bypassed. The power converter can reduce the inductive and capacitive consumption and improve the energy transmission efficiency, and suppress the impact of parasitic parameters to a certain extent. The power converter has a monotonous frequency gain curve during power transmission, thereby ensuring the controllability of a system and facilitating the design of a feedback loop.
Inventors:
CHEN XIAOYU (CN)
Application Number:
PCT/CN2018/074800
Publication Date:
August 23, 2018
Filing Date:
January 31, 2018
Export Citation:
Assignee:
NIO CO LTD (CN)
International Classes:
H02M3/335
Foreign References:
| CN106160500A | 2016-11-23 | |||
| CN106685235A | 2017-05-17 | |||
| KR101333285B1 | 2013-12-02 |
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
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