Samsung Electro-mechanics Co., Ltd.

Sungkyunkwan University

Magnachip Semiconductor, Inc.

Dong Seong Oh

Jin Wook Kim

Jae Sun Won

Jong Hae Kim

Jong Sun Kim

Byoung Kuk Lee

Sang Kyoo Han

Sung Soo Hong

Chung Wook Roh

Tae Won Lee

Don Sik Kim

Jae Sik Choi

Chung Yuen Won

Si Hyeon Go

Gun Woo Moon

Jong Soo Kim

Gyu Yeong Choe

Byoung Woo Ryu

Tae Won Heo

Yong Hyok Ji

Seong Wook Choi

Sug Chin Sakong

Jae Hyung Kim

Dea Min Jang

Young Ho Kim

In Wha Jeong

Hugh Wook Kim

Chong Eun Kim

Dong Joong Kim

Moon Taek Sung

Young Gun Hong

Jun Young Heo

Hee Sung Moon

Jeong Min Ko

Il Woon Lee

Sung Woo Kim

Tae Hoon Kim

Jong Han Kim

Young Min Lee

Hyun Jung Kim

Jong Pil Kim

Bong Chul Kim

Zhi Yuan Cui

Hyo Young Kim

Sang Hoon Jung

Jong Duck Kim

Doo Young Song

Ki Bum Park

Hak Ryong Kim

Sang Cheol Bong

Hwi Beom Shin

Myung Ho Park

Jeong Man Han

Kwang Seung Cho

Young Joo Kim

Beom Su Kim

Ku Yong Kim

Jun Gu Kim

Jin Woo Cho

Byung Ki Kim

Jin Wok Kim

Soo Han Woo

Byoung Hee Lee

Kang Hyun Yi

Erlan Dzhunusbekov

Dmitry Berdnikov

Sang Hun Lee

Byeong Woo Ryu

Hyung Ran Lee

A method to manufacture a semiconductor package includes: preparing a metal substrate; attaching semiconductor dies to the metal substrate at an interval; attaching a bonding film to the semiconductor dies; applying a mold material on the semiconductor dies and the metal substrate, and curing the mold material to form a mold member; grinding the mold member and the metal substrate to a thickness; removing the bonding film; attaching a redistribution layer to the semiconductor dies; and cutting between the semiconductor dies.

Semiconductor package and a method of manufacturing the same

A power semiconductor module includes: a substrate including first, second, and third metal patterns separated from each other, a semiconductor element located on the substrate, a lead frame located on the substrate and including first, second, third, and fourth bodies; a first terminal connected to the first body, a second terminal connected to the second body, and a third common terminal that connects the third body and the fourth body, wherein a length of the third common terminal is longer than that of the first and second terminals.

Power semiconductor module and method for manufacturing the same

A multi-chip package of power semiconductor includes a lead frame, a first segment group, a second segment group, a first power semiconductor chip and a second power semiconductor chip. The lead frame includes a first segment group having a first gate segment, a first source segment, and a first drain segment that are separated from each other. The second segment group has a second gate segment, a second source segment, and a second drain segment that are separated from each other. The first power semiconductor chip is formed on the first segment group. The second power semiconductor chip is formed on the second segment group. The first source segment is physically connected to the second drain segment.

Multi-chip package of power semiconductor

A high voltage start-up circuit includes a power supply terminal configured to supply power, a latch unit connected to the power supply terminal and comprising a first P-type Metal-Oxide-Semiconductor (PMOS) transistor, a first N-type metal-oxide semiconductor (NMOS) transistor connected to the first PMOS transistor, a second PMOS transistor, and a second NMOS transistor connected to the second PMOS transistor, wherein the transistors form a latch structure, a charge sharing unit comprising a first capacitor configured to supply a first voltage to a drain of the second PMOS transistor and a second capacitor configured to supply a second voltage to a drain of the first PMOS transistor, and a switching unit configured to form a current path that charges an external capacitor using a voltage supplied from the power supply terminal as a power voltage, based on the first voltage and the second voltage.

High voltage start-up circuit for zeroing of standby power consumption and switching mode power supply having the same

A composite electronic component includes: a power stabilization unit including a capacitor and an inductor connected to each other in series and configured to rectify input voltage to generate output voltage; and a switch unit including a first switch connected to the capacitor in parallel and a second switch connected to the inductor in parallel.

Composite electronic component

A wireless signal transmitting apparatus, includes: a piezoelectric harvester configured to generate electrical energy responsive to user switch manipulation; and, a wireless communication circuit configured to generate wireless signals from the electrical energy and wirelessly transmit the wireless signals to an external wireless power receiving device.

Wireless signal transmitting apparatus and wireless illumination control apparatus using the same

Disclosed are a maximum power point tracker, a power conversion controller, a power conversion device having an insulating structure, and a method for tracking maximum power point. The power conversion device includes: a DC/AC converter including a primary DC chopper unit having a primary switch, a transformer, and an AC/AC conversion unit including a secondary switch; a current detector detecting current from an input stage of the DC/AC converter and providing a detected current value; a voltage detector detecting a system voltage from an output stage of the DC/AC converter; and a power conversion controller generating a primary PWM signal to be provided to the primary DC chopper unit and secondary first and second PWM signals, having the mutually opposing phases, to be provided to the AC/AC conversion unit by using the detected current value and the system voltage.

Maximum power point tracker, power conversion controller, power conversion device having insulating structure, and method for tracking maximum power point thereof

There are disclosed a photovoltaic and fuel cell (PV-FC) hybrid generation system using a single converter and a single inverter, and a method of controlling the same. The PV-FC hybrid generation system includes a DC/DC converter unit converting an FC output voltage from a fuel cell, converting chemical energy into electrical energy, into a preset voltage, a DC link unit commonly connecting an output terminal of a photovoltaic cell, converting the sunlight into electrical energy, and an output terminal of the DC/DC converter unit, and linking the converted FC output voltage from the DC/DC converter unit with a PV output voltage from the photovoltaic cell to thereby generate a DC voltage, and a DC/AC inverter unit converting the DC voltage from the DC link unit into a preset AC voltage. Furthermore, a method of controlling the PV-FC hybrid generation system is proposed.

Photovoltaic and fuel cell hybrid generation system using single converter and single inverter, and method of controlling the same

There are provided an apparatus and method for charging and discharging a photovoltaic PCS integrated battery applied to a system that includes a first DC/DC converterconnected to a solar cell, a DC/AC inverter, a DC link unitconnected in common to output terminals of the first DC/DC converterand the DC/AC inverter, and a second DC/DC converterhaving a bidirectional DC/DC conversion function connected between the DC rink unitand the battery. The present invention calculates the amount of photovoltaic power produced by the solar cellbased on voltage and current detected in the voltage/current detector, determines one of predetermined control modes according to the amount of photovoltaic power and the connection or not of the battery, and controls the first DC/DC converter, the second DC/DC converter, and the DC/AC inverter according to the determined control mode.

Apparatus and method for charging and discharging photovoltaic PCS integrated battery

There are provided an apparatus and a method for controlling the power quality of a power generation system. According to the present invention, there is provided an apparatus for controlling the power quality of a power generation system including a DC/AC inverter converting DC voltage into AC voltage and supplying inverter current to a grid, including: a grid voltage phase follower generating a grid signal; a fundamental extractor extracting a magnitude of a fundamental wave of a load current introduced into a non-linear load connected between the DC/AC inverter and the grid; a first calculator subtracting a preset current compensation value from the magnitude of the fundamental wave from the fundamental extractor; and a second calculator generating an inverter current instruction value for the DC/AC inverter by using the output value of the first calculator and the grid signal and the load current from the grid voltage phase follower.

Apparatus and method for controling power quality of power generation system

Provided is a DC/DC converter including a power supply unit that includes a transformer having one primary side and a plurality of secondary sides and outputs a plurality of driving voltages for driving a load; and a constant current converting unit that is connected to one secondary side and a low-voltage stage of another secondary side adjacent to the one secondary side among the plurality of secondary sides of the transformer and boosts a driving voltage output from the one secondary side.

DC/DC converter

The present invention relates to an adapter power supply, which includes a switching unit for switching a DC voltage; a transformer which has a primary winding connected to the switching unit, a secondary winding electromagnetically coupled to the primary winding, and an auxiliary winding electromagnetically coupled to the primary winding; a rectifier for rectifying a voltage outputted from the transformer; and a controller for controlling the switching unit to operate according to the PWM scheme in a normal operation mode, and to operate according to a quasi-resonant scheme in a standby mode, by detecting information of a load connected to the rectifier.

Adapter power supply having variable switching mode

Growing community of inventors

Incheon, South Korea

Dong Seong Oh