LOAD DRIVING DEVICE AND LED DEVICE INCLUDING SAME

Title:

LOAD DRIVING DEVICE AND LED DEVICE INCLUDING SAME

Document Type and Number:

WIPO Patent Application WO/2018/207981

Kind Code:

A1

Abstract:

Disclosed is a load driving device. A load driving device according to an embodiment of the present disclosure may comprise: a conversion circuit for generating a first voltage as an output signal on the basis of an input voltage; a calibration capacitor which is connected to the conversion circuit, and performs a charging or discharging operation on the basis of at least a part of the first voltage; an energy transferring circuit which is connected to the calibration capacitor to receive at least a part of the first voltage, and outputs a second voltage to a load on the basis of the at least a part of the first voltage; and a current source which has one end connected to the energy transferring circuit and the other end connected to the conversion circuit, and provides a calibration current to the conversion circuit.

Inventors:

RYOO TAE HA (KR)
JEONG DONG YOUL (KR)

Application Number:

PCT/KR2017/012088

Publication Date:

November 15, 2018

Filing Date:

October 30, 2017

Export Citation:

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Assignee:

WELLANG CO LTD (KR)

International Classes:

H02M1/12; H05B44/00; H02M1/42

Foreign References:

US20130278157A1	2013-10-24
KR101142106B1	2012-05-08
KR101142089B1	2012-05-14
KR20150081139A	2015-07-13
US20140159616A1	2014-06-12