Title:
DIRECT CURRENT TOPOLOGICAL CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/196062
Kind Code:
A1
Abstract:
A direct current topological circuit comprises: a control chip (10), a first field-effect transistor (Q1), a second field-effect transistor (Q2), a third field-effect transistor (Q3), a fourth field-effect transistor (Q4), and a first inductor (L1). A subtracter (12) and a control module (11) electrically connected with an output end of the subtracter are provided in the control chip. Two input ends of the subtracter are connected with an input voltage (Vin) and a load rated voltage (VN) respectively; a subtraction on the input voltage and the load rated voltage is performed by means of the subtracter; the control module correspondingly controls, according to the computation result, on and off of multiple field-effect transistors so that the direct current topological circuit enters different work modes; in the case that loads use the same connecting port and the same communication protocol, the direct current topological circuit can supply power to different loads having different rated voltages, thus expanding the application range of the direct current topological circuit.
Inventors:
CAO DAN (CN)
Application Number:
PCT/CN2017/085170
Publication Date:
November 01, 2018
Filing Date:
May 19, 2017
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECT (CN)
International Classes:
H02M3/158
Foreign References:
| CN102336149A | 2012-02-01 | |||
| CN104467427A | 2015-03-25 | |||
| JP2005198411A | 2005-07-21 |
Other References:
See also references of EP 3618251A4
Attorney, Agent or Firm:
COMIPS INTELLECTUAL PROPERTY OFFICE (CN)
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