Title:
POWER SUPPLY CIRCUIT, CONTROLLING METHOD AND LIGHTING EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2019/227270
Kind Code:
A1
Abstract:
A power supply circuit, a controlling method and a lighting equipment. The power supply circuit includes: a current generator, configured to generate at least two ranges of DC (direct current) voltage, and output the at least two ranges of DC voltage from at least two output ports, respectively; and a judging circuit, configured to determine which output port is connected to an external circuit, according to ripples on the at least two output ports. Therefore, the output port which is connected to an external circuit can be identified.
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Inventors:
LI XINHAI (CN)
LIN YAOFENG (CN)
LIN YAOFENG (CN)
Application Number:
PCT/CN2018/088636
Publication Date:
December 05, 2019
Filing Date:
May 28, 2018
Export Citation:
Assignee:
TRIDONIC GMBH & CO KG (AT)
LIN YAOFENG (CN)
LIN YAOFENG (CN)
International Classes:
H02M3/335
Foreign References:
| CN106558992A | 2017-04-05 | |||
| CN205726555U | 2016-11-23 | |||
| CN101841249A | 2010-09-22 | |||
| CN102348310A | 2012-02-08 | |||
| US20140232270A1 | 2014-08-21 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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