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1. 发明申请

US20210057324A1 POWER MODULE 有权
公开(公告)号：US20210057324A1
公开(公告)日：2021-02-25
申请号：US16930324
申请日：2020-07-16
申请人： NIKO SEMICONDUCTOR CO., LTD.
发明人： CHUNG-MING LENG , CHIH-CHENG HSIEH
IPC分类号： H01L23/498 , H01L23/495 , H01L23/538 , H01L23/36 , H05K7/20 , H05K1/11 , H05K1/18
摘要： A power module including a carrier assembly and a power device disposed on the carrier assembly is provided. The carrier assembly includes a bottom board, a circuit board, a lead frame, and a pad group. The circuit board is disposed on the bottom board and includes a device mounting portion and an extending portion protruding from a side of the device mounting portion. The lead frame disposed on the bottom board includes a first conductive portion and a second conductive portion insulated from each other. The extending portion of the circuit board is disposed between the first and second conductive portions, and an upper surface of the lead frame is flush with a top surface of the extending portion. A pad group includes a first pad disposed on the extending portion, a second pad and a third pad respectively disposed on the first and second conductive portions.

2. 发明授权

US09030109B2 LED current balance driving circuit 有权
标题翻译： LED电流平衡驱动电路
公开(公告)号：US09030109B2
公开(公告)日：2015-05-12
申请号：US13555029
申请日：2012-07-20
申请人： Chien-Ching Li , Chung-Ming Leng
发明人： Chien-Ching Li , Chung-Ming Leng
IPC分类号： H05B37/00 , H05B33/08
CPC分类号： H05B33/0824
摘要： A LED current-balance driving circuit having a current-balance coil set, a switching unit, and a control circuit is provided. The current-balance coil set has at least a first coil and a second coil, both of which are in connection with respective LED strings, for balancing currents flowing through the LED strings. The switching unit and a leakage inductance of current-balance coil set are utilized to facilitate the voltage conversion for driving the LED strings. A duty cycle of the switching unit is controlled by the control circuit according to the currents flowing through the LED strings.
摘要翻译：提供具有电流平衡线圈组，开关单元和控制电路的LED电流平衡驱动电路。电流平衡线圈组具有至少第一线圈和第二线圈，它们都与各个LED串连接，用于平衡流经LED串的电流。利用开关单元和电流平衡线圈组的漏电感来促进驱动LED串的电压转换。开关单元的占空比由控制电路根据流过LED串的电流来控制。

3. 发明授权

US08576587B2 Predictive synchronous rectification controller, switching power converter with predictive synchronous rectification controller and controlling method thereof 有权
标题翻译：具有预测同步整流控制器的预测同步整流控制器，开关电源转换器及其控制方法
公开(公告)号：US08576587B2
公开(公告)日：2013-11-05
申请号：US13092944
申请日：2011-04-23
申请人： Ta-Ching Hsu
发明人： Ta-Ching Hsu
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M1/32 , Y02B70/1475
摘要： A predictive synchronous rectification controller for controlling at least one synchronous rectification switch is provided. The synchronous rectification controller has a ramp generator, a peak sampling unit, and an output control unit. The ramp generator receives a synchronous signal and generates a ramp signal accordingly. The peak sampling unit generates a predicted reference voltage signal by retrieving a peak voltage of the ramp signal. The output control unit compares the ramp signal with the predicted reference voltage signal to generate a synchronous rectification control signal to control a conducting state of the switch.
摘要翻译：提供一种用于控制至少一个同步整流开关的预测同步整流控制器。同步整流控制器具有斜坡发生器，峰值采样单元和输出控制单元。斜坡发生器接收同步信号并相应产生斜坡信号。峰值采样单元通过检索斜坡信号的峰值电压来产生预测参考电压信号。输出控制单元将斜坡信号与预测参考电压信号进行比较，以产生同步整流控制信号，以控制开关的导通状态。

4. 发明申请

US20130134887A1 LED CURRENT BALANCE DRIVING CIRCUIT 有权
标题翻译： LED电流平衡驱动电路
公开(公告)号：US20130134887A1
公开(公告)日：2013-05-30
申请号：US13555029
申请日：2012-07-20
申请人： CHIEN-CHING LI , CHUNG-MING LENG
发明人： CHIEN-CHING LI , CHUNG-MING LENG
IPC分类号： H05B37/02
CPC分类号： H05B33/0824
摘要： A LED current-balance driving circuit having a current-balance coil set, a switching unit, and a control circuit is provided. The current-balance coil set has at least a first coil and a second coil, both of which are in connection with respective LED strings, for balancing currents flowing through the LED strings. The switching unit and a leakage inductance of current-balance coil set are utilized to facilitate the voltage conversion for driving the LED strings. A duty cycle of the switching unit is controlled by the control circuit according to the currents flowing through the LED strings.
摘要翻译：提供具有电流平衡线圈组，开关单元和控制电路的LED电流平衡驱动电路。电流平衡线圈组具有至少第一线圈和第二线圈，它们都与各个LED串连接，用于平衡流经LED串的电流。利用开关单元和电流平衡线圈组的漏电感来促进驱动LED串的电压转换。开关单元的占空比由控制电路根据流过LED串的电流来控制。

5. 发明申请

US20130094249A1 SECONDARY SIDE SYNCHRONOUS RECTIFICATION CONTROL CIRCUIT AND SWITCHING CONVERTER 有权
标题翻译：二次同步整流控制电路和开关转换器
公开(公告)号：US20130094249A1
公开(公告)日：2013-04-18
申请号：US13459449
申请日：2012-04-30
申请人： TA-CHING HSU
发明人： TA-CHING HSU
IPC分类号： H02M3/335 , H02H7/125 , H02M7/217
CPC分类号： H02M1/08 , H02M3/33592 , Y02B70/1475
摘要： A secondary side synchronous rectification control circuit is disclosed. The control circuit includes an inverted amplifier, a first comparator, and a driving unit. The inverted amplifier has an input end for receiving a drain source voltage signal from a synchronous rectification transistor and outputting an inverted amplification signal. The first comparator receives the inverted amplification signal and a first reference voltage for outputting a first comparison signal. The driving unit receives the first comparison signal and generates a driving signal according to the first comparison signal, for controlling the conduction status of the synchronous rectification transistor. The drain source voltage of the synchronous rectification transistor in the present invention is inverted amplified by an inverted amplifier, and it is connected to a comparator for generating the driving signal. The errors and defects of the turn-off timing of the driving signal may be solved and eliminated.
摘要翻译：公开了一种二次侧同步整流控制电路。控制电路包括反相放大器，第一比较器和驱动单元。反相放大器具有用于从同步整流晶体管接收漏源电压信号并输出反相放大信号的输入端。第一比较器接收反相放大信号和用于输出第一比较信号的第一参考电压。驱动单元接收第一比较信号并根据第一比较信号产生用于控制同步整流晶体管的导通状态的驱动信号。本发明的同步整流晶体管的漏源电压由反相放大器反相放大，并连接到用于产生驱动信号的比较器。可以解决和消除驱动信号的关断定时的误差和缺陷。

6. 发明申请

US20130043818A1 SOFT-SWITCHING CONTROL CIRCUIT FOR DC MOTOR 有权
标题翻译：直流电机软开关控制电路
公开(公告)号：US20130043818A1
公开(公告)日：2013-02-21
申请号：US13211988
申请日：2011-08-17
申请人： CHIA-JUNG CHANG , WEI-LINE CHANG
发明人： CHIA-JUNG CHANG , WEI-LINE CHANG
IPC分类号： H02P6/18
CPC分类号： H02P6/008 , H02P6/16 , H02P6/182 , H02P6/20 , H02P6/26
摘要： A soft switching control circuit for a DC motor is provided. The soft switching control circuit has an absolute value generating circuit, a threshold voltage generating circuit, and a comparing circuit. The absolute value generating circuit outputs an absolute value signal according to a pair of Hall signals from the DC motor. The threshold voltage generating circuit receives a detected state signal and at least an end voltage of a coil of the DC motor for determining a current on the coil at an actual state change time defined by the detected state signal. According to the determination, the threshold voltage generating circuit outputs a threshold voltage with an adjusted voltage level. The comparing circuit compares the absolute value signal and the threshold voltage so as to generate a state change adjusting signal for modifying the actual state change time.
摘要翻译：提供一种用于直流电动机的软开关控制电路。软开关控制电路具有绝对值产生电路，阈值电压产生电路和比较电路。绝对值产生电路根据来自直流电动机的一对霍尔信号输出绝对值信号。阈值电压发生电路接收检测到的状态信号和直流电动机线圈的至少一个终端电压，用于在由检测到的状态信号定义的实际状态改变时间确定线圈上的电流。根据该判定，阈值电压生成电路输出具有调整后的电压电平的阈值电压。比较电路比较绝对值信号和阈值电压，以产生用于修改实际状态改变时间的状态改变调整信号。

7. 发明授权

US08310849B2 Pulse width modulation regulator IC and circuit thereof 失效
标题翻译：脉宽调制调节器IC及其电路
公开(公告)号：US08310849B2
公开(公告)日：2012-11-13
申请号：US12751092
申请日：2010-03-31
申请人： Chun-Ming Lin , Ker Cheng Liu
发明人： Chun-Ming Lin , Ker Cheng Liu
IPC分类号： H02M1/12
CPC分类号： H02M3/156
摘要： A pulse width modulation regulator IC is provided for controlling a duty cycle of at least one switch to convert one input voltage signal into an output voltage. An input pin is provided for receiving an input signal different from the input voltage signal. The input signal has a lasting time substantially the same as the time that input voltage signal situated at a high level, but the waveforms of the two signals are different. The input signal is converted into a square wave signal by a conversion unit, and a PWM signal is generated by a PWM controller according to the square wave signal to control the duty cycle of the switch. Therefore, the input pin can be saved by adjusting an internal or external circuit of the IC for the usage of the different kinds of input signals without increasing the number of input pins of the IC.
摘要翻译：提供脉宽调制调节器IC用于控制至少一个开关的占空比以将一个输入电压信号转换为输出电压。输入引脚用于接收与输入电压信号不同的输入信号。输入信号的持续时间与输入电压信号位于高电平的时间基本相同，但两个信号的波形不同。输入信号由转换单元转换成方波信号，根据方波信号由PWM控制器生成PWM信号，以控制开关的占空比。因此，可以通过调整IC的内部或外部电路来保存输入引脚，以便使用不同种类的输入信号，而不增加IC的输入引脚数量。

8. 发明申请

US20110318895A1 FABRICATION METHOD OF TRENCHED POWER MOSFET 有权
标题翻译：激光功率MOSFET的制造方法
公开(公告)号：US20110318895A1
公开(公告)日：2011-12-29
申请号：US13225555
申请日：2011-09-06
申请人： Kou-Way Tu , Hsiu-Wen Hsu , Yi-Yun Tsai , Yuan-Shun Chang
发明人： Kou-Way Tu , Hsiu-Wen Hsu , Yi-Yun Tsai , Yuan-Shun Chang
IPC分类号： H01L21/336
CPC分类号： H01L29/7813 , H01L21/26586 , H01L29/0878 , H01L29/41766 , H01L29/4236 , H01L29/42368 , H01L29/66719 , H01L29/66727 , H01L29/66734
摘要： A fabrication method of a trenched power MOSFET is provided. A pattern layer having a first opening is formed on a substrate. A portion of the substrate is removed, using the pattern layer as a mask, to form a trench in the substrate. A width of the trench is expanded. A gate oxide layer is formed on a surface of the trench. A portion of the gate oxide layer on a bottom of the trench is removed, using the pattern layer as a mask, to form a second opening in the gate oxide layer. The width of the expanded trench is greater than that of the second opening. A thick oxide layer is formed in the second opening. Heavily doped regions are formed beside the thick oxide layer. A gate is formed in the trench. A body layer surrounding the trench is formed. Sources are formed beside the trench.
摘要翻译：提供了一种沟槽功率MOSFET的制造方法。在基板上形成具有第一开口的图案层。使用图案层作为掩模去除衬底的一部分，以在衬底中形成沟槽。沟槽的宽度扩大。栅极氧化层形成在沟槽的表面上。使用图案层作为掩模，去除沟槽底部上的栅极氧化物层的一部分，以在栅极氧化物层中形成第二个开口。扩展沟槽的宽度大于第二开口的宽度。在第二开口中形成厚的氧化物层。在厚氧化物层旁边形成重掺杂区域。在沟槽中形成栅极。形成围绕沟槽的主体层。源头在沟槽旁边形成。

9. 发明授权

US08039906B2 High-voltage metal oxide semiconductor device and fabrication method thereof 有权
标题翻译：高压金属氧化物半导体器件及其制造方法
公开(公告)号：US08039906B2
公开(公告)日：2011-10-18
申请号：US12898970
申请日：2010-10-06
申请人： Kao-Way Tu
发明人： Kao-Way Tu
IPC分类号： H01L29/66
CPC分类号： H01L29/7802 , H01L29/0619 , H01L29/0623 , H01L29/0634 , H01L29/407 , H01L29/42376 , H01L29/66734 , H01L29/7808 , H01L29/7811 , H01L29/7813
摘要： A high-voltage metal oxide semiconductor device comprising a main body of a first conductivity type, a conductive structure, a first well of a second conductivity type, a source region of the first conductivity type, and a second well of the second conductivity type is provided. The conductive structure has a first portion and a second portion. The first portion is extended from an upper surface of the main body into the main body. The second portion is extended along the upper surface of the main body. The first well is located in the main body and below the second portion. The first well is kept away from the first portion with a predetermined distance. The source region is located in the first well. The second well is located in the main body and extends from a bottom of the first portion to a place close to a drain region.
摘要翻译：一种高电压金属氧化物半导体器件，包括第一导电类型的主体，导电结构，第二导电类型的第一阱，第一导电类型的源极区和第二导电类型的第二阱，提供。导电结构具有第一部分和第二部分。第一部分从主体的上表面延伸到主体。第二部分沿着主体的上表面延伸。第一口井位于主体中，并位于第二部分之下。第一个井以预定距离远离第一部分。源区位于第一井。第二井位于主体中并且从第一部分的底部延伸到靠近排水区的位置。

10. 发明授权

US07965047B2 Fluorescent lamp driving circuit 失效
标题翻译：荧光灯驱动电路
公开(公告)号：US07965047B2
公开(公告)日：2011-06-21
申请号：US12285183
申请日：2008-09-30
申请人： Chen-Hsung Wang
发明人： Chen-Hsung Wang
IPC分类号： H05B41/36
CPC分类号： H05B41/3925 , H05B41/2855
摘要： A fluorescent lamp driving circuit is provided. The fluorescent lamp driving circuit collects a pulse-width-modulation and a MOS switch in a single package. The pulse-width-modulation for driving multiple lamps only needs two pins to achieve feedback control and protection control. Thereby the pins required by the pulse-width-modulation are decreased substantially, and the electronic elements needed for feedback and protection control are also reduced, and the overall circuit design is simplified.
摘要翻译：提供荧光灯驱动电路。荧光灯驱动电路在单个封装中收集脉冲宽度调制和MOS开关。用于驱动多个灯的脉宽调制只需要两个引脚来实现反馈控制和保护控制。因此，脉冲宽度调制所需的引脚基本上减小，反馈和保护控制所需的电子元件也减少了，整个电路设计得到了简化。

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