公开(公告)号：US09812856B2

公开(公告)日：2017-11-07

申请号：US14965238

申请日：2015-12-10

申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.

发明人： Won-Tae Lee ,  Ji-Hoon Jang ,  Hyeong Seok Baek

IPC分类号： H02H3/247 ,  H02M3/335 ,  H02M1/00 ,  H02M1/32 ,  H02M1/36

CPC分类号： H02H3/247 ,  H02M1/00 ,  H02M1/32 ,  H02M1/36 ,  H02M3/33592 ,  H02M2001/0003 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02P80/112

摘要： A modulation mode control circuit includes a modulation mode controller configured to select modulation mode based on the result of a comparison between a control voltage and a predetermined PWM threshold voltage and to generate a PWM reference voltage using the PWM threshold voltage and the control voltage and a control signal generation unit configured to generate a first control signal based on the result of a comparison between an oscillation control signal for controlling a switching frequency and the control voltage and the result of a comparison between the oscillation control signal and the PWM threshold voltage and to generate a second control signal based on the result of a comparison between the oscillation control signal and the PWM reference voltage.

公开(公告)号：US09800136B2

公开(公告)日：2017-10-24

申请号：US14527033

申请日：2014-10-29

申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.

发明人： Hyun-Chul Eum ,  Young-Jong Kim

IPC分类号： G05F1/569 ,  G05F1/00 ,  H02H7/122 ,  H02M1/32 ,  H02M3/335 ,  H02M1/34

CPC分类号： H02M1/32 ,  H02M3/335 ,  H02M2001/348

摘要： An active damper and a power supply according to exemplary embodiments include: a damper resistor coupled to an input voltage; a damper switch coupled in parallel with the damper resistor; and a capacitor to which a reset current generated by a leading edge of the input voltage flows. The damper switch is turned off by the reset current.

公开(公告)号：US20170237352A1

公开(公告)日：2017-08-17

申请号：US15586597

申请日：2017-05-04

申请人： Fairchild Korea Semiconductor, Ltd.

发明人： Charlie WANG ,  Sang Cheol MOON ,  Young-Bae PARK

IPC分类号： H02M3/335 ,  H02M1/44 ,  H02M1/08

CPC分类号： H02M3/33507 ,  H02M1/08 ,  H02M1/4258 ,  H02M1/44 ,  H02M5/293 ,  H02M2001/0009 ,  H02M2001/0032 ,  H02M2001/0035 ,  H02M2001/007 ,  Y02B70/126 ,  Y02B70/16

摘要： A power supply includes a phase-cut pre-regulator. The phase-cut pre-regulator comprises a switching device connected between a line voltage and an input voltage of a bulk capacitor and a comparator receiving the line voltage and a reference voltage, comparing the line voltage with hysteresis reference voltages based on the reference voltage, and switching the switching device according to the compared result.

公开(公告)号：US20170179809A1

公开(公告)日：2017-06-22

申请号：US15446513

申请日：2017-03-01

申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.

发明人： Hang-Seok CHOI

IPC分类号： H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/335

CPC分类号： H02M1/08 ,  H02M1/088 ,  H02M1/32 ,  H02M1/36 ,  H02M1/38 ,  H02M3/33592 ,  H02M2001/0058 ,  Y02B70/1475 ,  Y02B70/1491

摘要： A switch control circuit includes a first pin connected to a first voltage, and a second pin connected to another end of a first resistor including an end connected to the first pin and a first capacitor. In the switch control circuit, at least two of first dead time information, second dead time information, and a protection mode are set by using a multi-voltage of the second pin. The first dead time information is information about a dead time of a first switch and a second switch controlling power supply, the second dead time information is information about a dead time for synchronous rectification, and the protection mode includes an auto-restart mode and a latch mode.

公开(公告)号：US20170148873A1

公开(公告)日：2017-05-25

申请号：US15337748

申请日：2016-10-28

申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.

发明人： Hye-mi Kim ,  Sun-hak Lee

IPC分类号： H01L29/06 ,  H01L27/08 ,  H01L29/36 ,  H01L29/861 ,  H01L29/417

CPC分类号： H01L29/0642 ,  H01L27/0629 ,  H01L29/402 ,  H01L29/66136 ,  H01L29/861

摘要： A power semiconductor device includes: a substrate; an anode electrode and a cathode electrode disposed on the substrate; a well region disposed inside the substrate in a lower portion of the anode electrode, and having p-type conductivity; an NISO region disposed in a lower portion of the well region inside the substrate, and having a first n-type impurity concentration; and an n-type buried layer disposed in a lower portion of the NISO region, and having a second impurity concentration greater than the first n-type impurity concentration, inside the substrate.

公开(公告)号：US09647528B2

公开(公告)日：2017-05-09

申请号：US14619403

申请日：2015-02-11

申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.

发明人： Won-Tae Lee ,  Hyeong Seok Baek ,  Ji-Hoon Jang ,  Hang-Seok Choi

IPC分类号： H02M3/335 ,  H02M1/32 ,  H02M1/00

CPC分类号： H02M1/32 ,  H02M3/33507 ,  H02M3/33538 ,  H02M3/33569 ,  H02M3/33592 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491 ,  Y02P80/112

摘要： A resonant converter includes a first switch coupled between a first node and a primary side ground, a second switch coupled between an input voltage and the first node, at least one capacitor and at least one inductor coupled in series between both ends of the first switch, and a switch control circuit that shifts switching frequencies of the first and second switches during a period for which an abnormal event lasts when occurrence of the abnormal event is detected, and shifts the switching frequencies in an opposite direction when the abnormal event ends.

公开(公告)号：US09645201B2

公开(公告)日：2017-05-09

申请号：US14189212

申请日：2014-02-25

申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.

发明人： Moonsik Song ,  Seok Heo

IPC分类号： H02J7/00 ,  H02J7/14 ,  G01R31/36

CPC分类号： G01R31/3658 ,  H02J7/0016 ,  H02J7/0021 ,  H02J7/0047

摘要： The voltage measuring apparatus is connected to a plurality of battery cells connected to each other in series to measure respective voltages of the battery cells. The voltage measuring apparatus includes a sample/hold amplifier configured to sample and hold positive electrode and negative electrode voltages of the battery cells to generate first and second output voltages, a differential voltage converter configured to generate a battery cell voltage according to a voltage difference between a positive input terminal and a negative input terminal, and a switching unit configured to control the first and second output voltages and connection between the positive input terminal and the negative input terminal so that a polarity of the voltage difference is constant. The sample/hold amplifier electrically insulates the switching unit from the battery cells.

公开(公告)号：US09627988B2

公开(公告)日：2017-04-18

申请号：US14614605

申请日：2015-02-05

申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.

发明人： Won-Tae Lee ,  Hyeong Seok Baek ,  Ji-Hoon Jang ,  Hang-Seok Choi

IPC分类号： H02M3/335 ,  H02M3/337 ,  H02M1/12 ,  H02M1/00

CPC分类号： H02M3/3376 ,  H02M1/12 ,  H02M3/33576 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

摘要： A resonant converter includes a primary-side winding electrically coupled to an input voltage, a secondary-side winding electrically coupled to a load, first and second switches coupled to one end of the primary-side winding, and a switch control circuit configured to differently control switching frequency limit ratios of the first and second switches by differently limiting a frequency variation ratio of a first clock signal that determines switching frequencies of the first and second switches according to variation of one of the input voltage and the load.

公开(公告)号：US20170054009A1

公开(公告)日：2017-02-23

申请号：US15242018

申请日：2016-08-19

申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.

发明人： Kwang-won LEE ,  Hye-min KANG ,  Jae-gil LEE

IPC分类号： H01L29/739 ,  H01L29/10 ,  H01L21/324 ,  H01L29/36 ,  H01L29/66 ,  H01L21/266

CPC分类号： H01L29/7395 ,  H01L21/2253 ,  H01L21/266 ,  H01L29/0634 ,  H01L29/1095 ,  H01L29/36 ,  H01L29/66333

摘要： A superjunction semiconductor device includes a first semiconductor layer doped with a first conductivity type; an active region formed on the first semiconductor layer, the active region including a drift layer; and a termination region disposed to surround the active region, the termination region including a lower edge region disposed on a side surface of the drift layer and an upper edge region disposed on the lower edge region, wherein the upper edge region includes a lower charge balance region disposed on the lower edge region, the lower charge balance region having a second conductivity type different from the first conductivity type, and an upper charge balance region disposed on the lower charge balance region, the upper charge balance region having the first conductivity type.

摘要翻译： 超结半导体器件包括掺杂有第一导电类型的第一半导体层; 形成在所述第一半导体层上的有源区，所述有源区包括漂移层; 以及设置成围绕所述有源区域的端接区域，所述端接区域包括设置在所述漂移层的侧表面上的下边缘区域和设置在所述下边缘区域上的上边缘区域，其中所述上边缘区域包括较低的电荷平衡 所述下电荷平衡区具有不同于所述第一导电类型的第二导电类型，以及设置在所述下电荷平衡区上的上电荷平衡区，所述上电荷平衡区具有第一导电类型。

公开(公告)号：US20170012619A1

公开(公告)日：2017-01-12

申请号：US15204138

申请日：2016-07-07

申请人： Fairchild Korea Semiconductor, LTD

发明人： Kinam SONG ,  Wonhi OH ,  Jinkyu CHOI ,  Bumseung JIN ,  Samuell SHIN

IPC分类号： H03K17/22

CPC分类号： H03K17/223 ,  G06F1/24 ,  G06F1/30 ,  H03K2217/0036 ,  H03K2217/0063

摘要： An UVLO circuit according to an aspect of the present invention includes: a power-on reset (POR) circuit generating an output based on a first current that flows according to an increase of a power supply voltage and not operating in a normal state of the power supply voltage; and a logic operation unit generating a reset signal according to an output of the POR circuit and an output based on a result of comparison between a sense voltage that corresponds to the power supply voltage and a predetermined reference voltage.

摘要翻译： 根据本发明的一个方面的UVLO电路包括：上电复位（POR）电路，其基于根据电源电压的增加而流动的第一电流产生输出，而不是在正常状态下工作 电源电压; 以及逻辑运算单元，根据POR电路的输出和基于对应于电源电压的感测电压与预定参考电压之间的比较结果产生复位信号。