US 2021/0242782 A1 · DC-DC CONVERTER AND DISPLAY DEVICE HAVING THE SAME

Abstract

A DC-DC converter including a first power supply including a first converter outputting a first power voltage, a first sensor detecting a panel current from an output of the first converter; and a first output group including a plurality of inverting converters outputting a second power voltage based on the panel current; a second power supply including a second converter outputting the first power voltage, and a second output group including a plurality of inverting converters outputting the second power voltage based on the panel current; and a first phase controller controlling operations of the inverting converters included in each of the first and second output groups based on the detected panel current. The second power supply operates when the panel current exceeds a predetermined enable value.

Claims19

Dependent claims

A DC-DC converter comprising:

a first power supply comprising:
a first converter configured to convert an input power to a first power voltage;
and
a first output group including a plurality of inverting converters configured to convert the input power to a second power voltage based on a panel current;
a second power supply comprising a second output group including a plurality of inverting converters configured to convert the input power to the second power voltage based on the panel current;
and
a first phase controller configured to control the inverting converters based on the panel current,
wherein the second power supply operates when the panel current exceeds a predetermined enable value.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/236,542Filed 21 Apr 2021

Priority

KR 10-2018-013866113 Nov 2018

Published

5 Aug 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

H02M 1/32
Details of apparatus for conversion: means for protecting converters other than automatic disconnection
H02M 3/33507
Using semiconductor devices only: with automatic control of the output voltage or current, e.g. flyback converters
G09G 3/3208
Semiconductive, e.g. using light-emitting diodes [LED]: organic, e.g. using organic light-emitting diodes [OLED]
H02M 3/158
With automatic control of output voltage or current, e.g. switching regulators: including plural semiconductor devices as final control devices…

Dc-dc converter and display device having the same

Life of this patent

Dc-dc converter and display device having the same

Life of this patent

Abstract

Claims19