Lg Innotek Co., Ltd.

Soo Hong Kim

Ju Young Jang

Jeong Heum Lee

Young Woo Jeong

Jeong Heum Park

Yoon Tai Kim

Jae Geun Lee

Kweon Jin Lee

Kwang Soon Jung

Ui Seon Hwang

Sung Jae Kong

Hyung Mook Oh

A DC-DC converter according to an embodiment of the present invention comprises: a maximum power point tracking control unit for performing a maximum power point tracking control when a communication module is connected to a solar panel; and a constant current/constant voltage control unit for receiving an input of power output from the maximum power point tracking control unit, outputting power having a constant voltage at the time of constant voltage control, and outputting power having a constant current at the time of constant current control.

DC-DC converter, power conversion device, and solar power generation system

A printed circuit board module comprises: a first printed circuit board; a second printed circuit board arranged on one surface of the first printed circuit board; a third printed circuit board arranged on the other surface of the first printed circuit board; and a core passing through the first printed circuit board to the third printed circuit board, wherein the second printed circuit board includes a first coil, the third printed circuit board includes a second coil, and the cross-sectional area of the second printed circuit board and the third printed circuit board is less than the cross-sectional area of the first printed circuit board.

Printed circuit board module

A converter for connecting a battery end and a link end, according to one embodiment of the present invention, comprises: a switch unit including at least four switches connected in series to link; an inductor for connecting a node between two of the four switches with a battery end; a capacitor unit which includes a first capacitor and a second capacitor connected in series and which are connected in parallel with the switch unit; a resistor having one end connected to a node between the first capacitor and the second capacitor; a flying capacitor connected in parallel with at least two of the four switches; a first diode connected to the other end of the resistor and one end of the flying capacitor; and a second diode connected to the other end of the resistor and the other end of the flying capacitor.

Converter

According to an embodiment, disclosed is a DC-DC converter in a solar-linked system, the DC-DC converter including: an initial charging circuit which connects an inverter with a first node and is used for charging an inverter-side capacitor; an intermediate capacitor; and a switching circuit connected in parallel to the intermediate capacitor and composed of a first switch and a second switch that are connected in series, wherein the initial charging circuit applies a voltage to a first node according to a received control signal, and performs charging of a battery.

DC-DC converter for solar-linked system

One embodiment discloses a DC-DC converter which, in a solar-related energy storage system, cuts-off the over-discharging of a battery, and a control method thereof. Specifically, disclosed are a DC-DC converter which protects a battery by appropriately switching between a sleep mode which minimizes battery consumption by maintaining only minimized functions and a cut-off mode which prevents the battery from over-discharging by physically cutting off a circuit connected to the battery, and a control method thereof. Also, an embodiment discloses a DC-DC converter or reverse wiring protection device for between a solar panel and a battery. Specifically, disclosed is a DC-DC converter or reverse wiring protection device comprising: a reverse current pass circuit comprising a current sensor, a voltage sensor, a diode and a fuse; a breaker circuit which cuts-off the supply of power if reverse wiring is sensed by the current sensor or the voltage sensor; a capacitor which is connected in parallel to the reverse current pass circuit; and a switch which connects the reverse current pass circuit and the battery pack.

DC-DC converter for solar-related energy storage system, and control method thereof

A DC-DC converter includes a bridge circuit electrically connected to a DC link capacitor; an inductor and a capacitor electrically connected to the bridge circuit, in which the inductor is connected to a first end of a battery, and the capacitor is connected to the first end and a second end of the battery; a sensor configured to sense a voltage between the bridge circuit and the DC link capacitor; and a controller configured to control switching operations of the bridge circuit so that a power output by the DC-DC converter and supplied to the first end of the battery has a droop curve-shaped power value according to the sensed voltage.

Power supply system including DC-to-DC converter and control method therefor

A touch window includes a substrate, and an electrode part on the substrate. The sensing electrode includes a base substrate formed with a pattern part, and an electrode layer on the pattern part, where the electrode layer has a thickness in a range of 0.03 &#x3bc;m to 3 &#x3bc;m.

Growing community of inventors

Seoul, South Korea

Soo Hong Kim