Title:
POWER SUPPLY
Document Type and Number:
WIPO Patent Application WO/2019/172643
Kind Code:
A1
Abstract:
A power supply according to the present invention comprises: a conversion unit for controlling a level of an input voltage according to a pulse control signal applied to a first switch element and then outputting an output voltage to a load; a detection unit for detecting an output current of the load; and a control unit for generating the pulse control signal according to the output current of the load and driving the first switch element according to the generated pulse control signal, whereinthe control unit comprises: a first reference signal outputting unit for receiving a first power voltage and outputting a first reference signal corresponding to a reference voltage by using the first power voltage; a second reference signal outputting unit for receiving a second power voltage and the first reference signal and outputting a second reference signal corresponding to the first reference signal by using the second power voltage; a detection signal outputting unit for outputting a detection signal corresponding to the output current detected by the detection unit; and a current compensation unit for comparing the second reference signal and the detection signal and generating a pulse control signal to compensate the output current of the load according to a result of the comparison.
Inventors:
YOON DONG KEUN (KR)
Application Number:
PCT/KR2019/002590
Publication Date:
September 12, 2019
Filing Date:
March 06, 2019
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02M3/156; H02M1/08; H05B44/00
Foreign References:
| KR20150133607A | 2015-11-30 | |||
| KR20140145814A | 2014-12-24 | |||
| KR101167807B1 | 2012-07-25 | |||
| KR100941509B1 | 2010-02-10 | |||
| US20130229832A1 | 2013-09-05 |
Other References:
See also references of EP 3764530A4
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
Download PDF: