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1. 发明申请

US20180122725A1 SEMICONDUCTOR DIE PACKAGE AND MANUFACTURING METHOD 审中-公开
公开(公告)号：US20180122725A1
公开(公告)日：2018-05-03
申请号：US15729973
申请日：2017-10-11
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Seungwon IM , Mankyo JONG , Joonseo SON , Oseob JEON
IPC分类号： H01L23/495 , H01L23/40 , H01L23/38
摘要： In a general aspect, an apparatus can include a semiconductor die, a substrate, and a leadframe coupled to the substrate. The apparatus can include a conductive clip coupled to the semiconductor die. The leadframe can be disposed between the semiconductor die and the substrate, and the semiconductor die can be disposed between the conductive clip and the leadframe.

2. 发明申请

US20180054133A1 RESONANT CAPACITOR STABILIZER IN RESONANT CONVERTERS 审中-公开
公开(公告)号：US20180054133A1
公开(公告)日：2018-02-22
申请号：US15668975
申请日：2017-08-04
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Sangcheol MOON , Jintae KIM , Hangseok CHOI
IPC分类号： H02M3/335 , H02M1/36 , H02M1/08
CPC分类号： H02M3/33515 , H02M1/32 , H02M1/36 , H02M3/33523 , H02M3/3376 , H02M2001/0009 , H02M2001/0035 , H02M2001/0054 , Y02B70/1433 , Y02B70/1491 , Y02B70/16
摘要： According to an implementation, a resonant converter for resonant capacitance stabilization during start-up includes an oscillator configured to generate a first clock signal to drive a first driver for a first power switch, and a second clock signal to drive a second driver for a second power switch during switching operations, and a resonant capacitor stabilizer configured to control the second driver to periodically activate the second power switch to discharge a resonant capacitor of a resonant network during initialization of the switching operations of the resonant converter.

3. 发明授权

US09900938B2 LED lighting circuit with ripple reducer 有权
公开(公告)号：US09900938B2
公开(公告)日：2018-02-20
申请号：US15388243
申请日：2016-12-22
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Jintae Kim , Hyunchul Eum , Inki Park , Eungwoo Lee
IPC分类号： H05B33/08 , H02J3/01 , H02J3/18
CPC分类号： H05B33/0812 , H02J3/01 , H02J3/18 , H02M1/12 , Y02B20/345
摘要： A light emitting diode (LED) lighting circuit includes a ripple reducer. The ripple reducer includes a ripple detector, an adaptive offset generator, and a linear regulator. The ripple detector generates a ripple voltage that is indicative of a ripple current. The adaptive offset generator generates an adaptive offset voltage from the ripple voltage and from a voltage of a transistor. The linear regulator drives the transistor to regulate an LED current in accordance with a reference control voltage that is generated from the ripple voltage and the adaptive offset voltage.

4. 发明申请

US20180048227A1 CHARGE PUMP AND SWITCH CONTROL CIRCUIT 审中-公开
公开(公告)号：US20180048227A1
公开(公告)日：2018-02-15
申请号：US15797994
申请日：2017-10-30
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Taesung KIM , Dong-Jin PARK , Seung-Uk YANG
IPC分类号： H02M3/07 , H02M3/156 , H02M1/00 , H02M3/335
CPC分类号： H02M3/073 , H02M1/12 , H02M1/14 , H02M3/156 , H02M3/335 , H02M2001/0006
摘要： A charge pump includes: a first diode that is connected to a first node; a second diode that is connected to a second node; a pump capacitor that is connected to a third node to which the first diode and the second diode are connected; a power supply capacitor that is connected to the pump capacitor; a third diode that is connected between the pump capacitor and the power supply capacitor; and a zener diode that is connected in parallel to the third diode and the power supply capacitor. A power supply device decreases a ripple of an output current using a ripple reduction signal.

5. 发明授权

US09837909B2 Mode selection circuit and switch control circuit including the mode selection circuit and multi functions pin 有权
公开(公告)号：US09837909B2
公开(公告)日：2017-12-05
申请号：US14447479
申请日：2014-07-30
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Taesung Kim , Dong-Jin Park , Seung-Uk Yang
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： A mode selection circuit generates a mode voltage according to a clamping current flowing when a voltage of a multi-pin is clamped to a predetermined clamping voltage, and selects one of a plurality of mode signals according to the mode voltage. The mode voltage is controlled according to a passive element connected to the multi-pin.

6. 发明申请

US20170310231A1 RESONANT CONVERTER AND DRIVING METHOD THEREOF 有权
公开(公告)号：US20170310231A1
公开(公告)日：2017-10-26
申请号：US15645372
申请日：2017-07-10
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Won-Tae LEE , Hyeong Seok BAEK , Ji-Hoon JANG , Hang-Seok CHOI , Moon-Ho CHOI
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33592 , H02M3/33569 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491 , Y02P80/112
摘要： A resonant converter includes a first switch on a primary side and a second switch coupled to the first switch, a first synchronous rectification switch on a secondary side conducted according to a switching operation of the first switch, a second synchronous rectification switch on the secondary side conducted according to a switching operation of the second switch, and a switch control circuit configured to detect a waveform of one end voltage of at least one of the first synchronous rectification switch and the second synchronous rectification switch, determine one of a below region and an above region, and differently control conduction duration of the first and second synchronous rectification switches according to a determined result.

7. 发明授权

US09781790B2 Phase shift circuit and dimming circuit including the same 有权
公开(公告)号：US09781790B2
公开(公告)日：2017-10-03
申请号：US13234656
申请日：2011-09-16
申请人： Youn-woong Chung
发明人： Youn-woong Chung
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0818 , Y02B20/346
摘要： A phase shift circuit includes an on signal generator, an off signal generator, and a channel signal generator. The on signal generator generates an on signal having a rising edge shifted by a predetermined phase based on a pulse width modulation (PWM) signal, the off signal generator generates an off signal based on the PWM signal and the on signal, and the channel signal generator generates a channel signal that is enabled in response to the rising edge of the on signal and disabled in response to a rising edge of the off signal.

8. 发明申请

US20170243951A1 POWER DEVICE AND METHOD OF MANUFACTURING THE SAME 有权
公开(公告)号：US20170243951A1
公开(公告)日：2017-08-24
申请号：US15588270
申请日：2017-05-05
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Kyu-hyun LEE , Young-chul KIM , Kyeong-seok PARK , Bong-yong LEE , Young-chul CHOI
IPC分类号： H01L29/66 , H01L29/06 , H01L29/10 , H01L29/739 , H01L29/08 , H01L21/266 , H01L29/423 , H01L21/265 , H01L21/304
CPC分类号： H01L29/66348 , H01L21/26513 , H01L21/266 , H01L21/304 , H01L29/0615 , H01L29/0619 , H01L29/0696 , H01L29/0804 , H01L29/0821 , H01L29/0834 , H01L29/1004 , H01L29/1095 , H01L29/36 , H01L29/4236 , H01L29/66333 , H01L29/732 , H01L29/7395 , H01L29/7397
摘要： Provided are a power device having an improved field stop layer and a method of manufacturing the same. The method can include performing a first ion implant process by implanting impurity ions of a first conductive type into a front surface of a semiconductor substrate to form an implanted field stop layer where the semiconductor substrate is the first conductive type. The method can include performing a second ion implant process by implanting impurity ions of the first conductive type into a first part of the implanted field stop layer such that an impurity concentration of the first part of the implanted field stop layer is higher than an impurity concentration of a second part of the implanted field stop layer.

9. 发明授权

US09716399B2 Vehicle charger 有权
公开(公告)号：US09716399B2
公开(公告)日：2017-07-25
申请号：US14706472
申请日：2015-05-07
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Bong-Geun Chung , Youngbae Park , Gwanbon Koo
IPC分类号： H02J7/00
CPC分类号： H02J7/007 , H02J7/0052 , H02J2007/0062 , H02J2007/0096
摘要： A vehicle charger includes a power supply device, a communication module, a reference changing unit, a compensator, a controller, and a gate driver. The power supply device changes an input voltage into a voltage required to charge a portable device and outputs the changed voltage. The communication module receives information on at least one of a voltage and a current, which are required to charge the portable device. The reference changing unit generates at least one of a reference voltage and a reference current based on the information on the at least one of the voltage and the current. The compensator generates a compensation signal based on a result obtained by comparing the at least one of the reference voltage and the reference current with at least one of a sensed voltage and a sensed current, which are obtained by sensing at least one of an output voltage of the power supply device and a current supplied from the power supply device to the portable device. The controller generates a gate driving signal according to the compensation signal. The gate driver generates a gate voltage for controlling switching operation of the power supply device according to the gate driving signal.

10. 发明申请

US20170200552A1 PLANAR TRANSFORMER WITH MULTILAYER CIRCUIT BOARD 审中-公开
公开(公告)号：US20170200552A1
公开(公告)日：2017-07-13
申请号：US15374239
申请日：2016-12-09
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： BongGeun CHUNG , GwanBon KOO , TaeSung KIM , YoonJoo YOU
IPC分类号： H01F27/28 , H02M7/217
摘要： A planar transformer includes a magnetic core and a multilayer printed circuit board. A primary winding of the planar transformer is formed by winding traces on several layers of the printed circuit board. A layer of the printed circuit board that has a winding trace of the primary winding has a winding trace of another winding of the planar transformer, such as a winding trace of an auxiliary winding or a winding trace of a shield winding. The planar transformer further includes a secondary winding. The secondary winding can be a solid wire or a winding trace on a layer of the printed circuit board.

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