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21. 发明申请

US20080225560A1 SWITCHING CONTROLLER FOR PARALLEL POWER CONVERTERS 有权
标题翻译：并联电源转换器开关控制器
公开(公告)号：US20080225560A1
公开(公告)日：2008-09-18
申请号：US11684642
申请日：2007-03-12
申请人： Ta-yung Yang , Rui-Hong Lu , Jenn-Yu G. Lin
发明人： Ta-yung Yang , Rui-Hong Lu , Jenn-Yu G. Lin
IPC分类号： H02M7/48
CPC分类号： H02J1/102 , H02M3/1584 , Y10T307/25 , Y10T307/406 , Y10T307/461 , Y10T307/74 , Y10T307/747 , Y10T307/766 , Y10T307/826 , Y10T307/865 , Y10T307/937
摘要： A switching controller for parallel power converters is disclosed. The switching controller includes an input circuit coupled to an input terminal of the switching controller to receive an input signal. An integration circuit is coupled to the input circuit to generate an integration signal in response to the pulse width of the input signal. A control circuit generates a switching signal for switching the power converters. The switching signal is enabled in response to the enabling of the input signal. A programmable delay time is generated between the input signal and the switching signal. The pulse width of the switching signal is determined in response to the integration signal.
摘要翻译：公开了并联电力转换器的开关控制器。开关控制器包括耦合到开关控制器的输入端以接收输入信号的输入电路。积分电路耦合到输入电路以响应于输入信号的脉冲宽度产生积分信号。控制电路产生用于切换功率转换器的开关信号。响应于输入信号的使能，使能开关信号。在输入信号和开关信号之间产生可编程延迟时间。响应于积分信号确定开关信号的脉冲宽度。

22. 发明申请

US20080180262A1 METHOD AND APPARATUS FOR PROVIDING A COMMUNICATION CHANNEL THROUGH AN OUTPUT CABLE OF A POWER SUPPLY 有权
标题翻译：通过电源输出电缆提供通信通道的方法和装置
公开(公告)号：US20080180262A1
公开(公告)日：2008-07-31
申请号：US11627052
申请日：2007-01-25
申请人： Ta-yung Yang , Jenn-Yu G. Lin
发明人： Ta-yung Yang , Jenn-Yu G. Lin
IPC分类号： G08B21/00
CPC分类号： H04B3/54 , H04B2203/547 , H04B2203/5491 , Y10T307/625
摘要： A power supply system is introduced herein. The power supply system includes a power converter to supply a power source to an electronic circuit through an output cable of the power supply. A communication unit is coupled to the output cable of the power supply to develop a communication channel between the power converter and the electronic circuit in order to report the status of the power converter to the electronic circuit.
摘要翻译：本文介绍电源系统。电源系统包括电源转换器，用于通过电源的输出电缆向电子电路提供电源。通信单元耦合到电源的输出电缆，以在功率转换器和电子电路之间开发通信信道，以便将功率转换器的状态报告给电子电路。

23. 发明授权

US07355250B2 Electrostatic discharge device with controllable holding current 有权
标题翻译：具有可控保持电流的静电放电装置
公开(公告)号：US07355250B2
公开(公告)日：2008-04-08
申请号：US11222707
申请日：2005-09-08
申请人： Chih-Feng Huang , Ta-yung Yang , Jenn-yu G. Lin , Tuo-Hsin Chien
发明人： Chih-Feng Huang , Ta-yung Yang , Jenn-yu G. Lin , Tuo-Hsin Chien
IPC分类号： H01L23/62 , H01L29/76 , H01L29/94 , H01L31/062 , H01L31/113
CPC分类号： H01L27/0262
摘要： An electrostatic discharge (ESD) device with a parasitic silicon controlled rectifier (SCR) structure and controllable holding current is provided. A first distance is kept between a first N+ doped region and a first P+ doped region, and a second distance is kept between a second P+ doped region and a third N+ doped region. In addition, the holding current of the ESD device can be set to a specific value by modulating the first distance and the second distance. The holding current is in inverse proportion to the first distance and the second distance.
摘要翻译：提供具有寄生可控硅整流器（SCR）结构和可控保持电流的静电放电（ESD）器件。在第一N +掺杂区域和第一P +掺杂区域之间保持第一距离，并且在第二P +掺杂区域和第三N +掺杂区域之间保持第二距离。此外，通过调制第一距离和第二距离，可以将ESD装置的保持电流设定为特定值。保持电流与第一距离和第二距离成反比。

24. 发明授权

US06903421B1 Isolated high-voltage LDMOS transistor having a split well structure 失效
标题翻译：隔离式高压LDMOS晶体管具有分裂阱结构
公开(公告)号：US06903421B1
公开(公告)日：2005-06-07
申请号：US10758919
申请日：2004-01-16
申请人： Chih-Feng Huang , Ta-yung Yang , Jenn-yu G. Lin , Tuo-Hsin Chien
发明人： Chih-Feng Huang , Ta-yung Yang , Jenn-yu G. Lin , Tuo-Hsin Chien
IPC分类号： H01L23/62 , H01L27/088 , H01L29/06 , H01L29/08 , H01L29/76 , H01L29/78 , H01L29/94
CPC分类号： H01L29/0634 , H01L29/0696 , H01L29/0886 , H01L29/42368 , H01L29/7816 , H01L2924/0002 , H01L2924/00
摘要： The isolated high-voltage LDMOS transistor according to the present invention includes a split N-well and P-well in the extended drain region. The P-well is split in the extended drain region of the N-well to form a split junction-field in the N-well. The split N-well and P-well deplete the drift region, which shifts the electric field maximum into the bulk of the N-well. This achieves a higher breakdown voltage and allows the N-well to have a higher doping density. Furthermore, the LDMOS transistor according to the present invention includes a N-well embedded beneath the source diffusion region. This creates a low-impedance path for the source region, which restricts the transistor current flow between the drain region and the source region.
摘要翻译：根据本发明的隔离的高电压LDMOS晶体管在扩展漏极区域中包括分裂的N阱和P阱。 P阱在N阱的扩展漏极区域中分裂，以在N阱中形成分离的连接场。分裂的N阱和P阱消耗了漂移区域，其将电场最大值移动到N阱的大部分中。这实现了更高的击穿电压并且允许N阱具有更高的掺杂密度。此外，根据本发明的LDMOS晶体管包括嵌入在源极扩散区之下的N阱。这为源极区域产生低阻抗路径，这限制了漏极区域和源极区域之间的晶体管电流。

25. 发明授权

US07858466B2 Different-voltage device manufactured by a CMOS compatible process and high-voltage device used in the different-voltage device 有权
标题翻译：由CMOS兼容工艺制造的不同电压器件和用于不同电压器件的高压器件
公开(公告)号：US07858466B2
公开(公告)日：2010-12-28
申请号：US11682621
申请日：2007-03-06
申请人： Chih-Feng Huang , Ta-yung Yang , Jenn-yu G. Lin , Tuo-Hsin Chien
发明人： Chih-Feng Huang , Ta-yung Yang , Jenn-yu G. Lin , Tuo-Hsin Chien
IPC分类号： H01L21/8238
CPC分类号： H01L21/823814 , H01L21/823857 , H01L21/823892
摘要： A method of manufacturing different-voltage devices mainly comprises forming at least one high-voltage well in high-voltage device regions, at least one N-well in low-voltage device regions, at least one P-well in low-voltage device regions, source/drain wells in high-voltage device regions, and isolation wells in isolation regions in a p-type substrate. The breakdown voltage is adjusted by modulating the ion doping profile. Furthermore, parameters of implanting conductive ions are adjusted for implanting conductive ions into both high-voltage device regions and low-voltage device regions. The isolation wells formed in isolation regions between devices are for separating device formed over high-voltage device regions and device formed over low-voltage device regions. The thickness of a HV gate oxide layer is thicker than the thickness of an LV gate oxide layer for modulating threshold voltages of high-voltage devices and low-voltage devices.
摘要翻译：一种制造不同电压装置的方法主要包括在高电压装置区域中形成至少一个高电压阱，在低电压装置区域中形成至少一个N阱，在低电压装置区域中形成至少一个P阱，高压器件区域中的源/漏极阱以及p型衬底中的隔离区中的隔离阱。通过调制离子掺杂分布来调整击穿电压。此外，调整注入导电离子的参数，以将导电离子注入到高电压器件区域和低电压器件区域中。在器件之间的隔离区域中形成的隔离阱用于在高电压器件区域上形成的分离器件和在低电压器件区域上形成的器件。 HV栅极氧化物层的厚度比用于调制高电压器件和低电压器件的阈值电压的LV栅极氧化物层的厚度厚。

26. 发明授权

US07362593B2 Switching control circuit having off-time modulation to improve efficiency of primary-side controlled power supply 有权
标题翻译：具有关断时间调制的开关控制电路，以提高初级侧受控电源的效率
公开(公告)号：US07362593B2
公开(公告)日：2008-04-22
申请号：US10943668
申请日：2004-09-16
申请人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin , Chuh-Ching Li , Feng Cheng Tsao
发明人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin , Chuh-Ching Li , Feng Cheng Tsao
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： A voltage-waveform detector produces a voltage-feedback signal and a discharge-time signal by multi-sampling a voltage signal of a transformer. The discharge-time signal represents a discharge time of a secondary-side switching current. A voltage-loop error amplifier amplifies the voltage-feedback signal and generates a control signal. An off-time modulator correspondingly generates a discharge-current signal and a standby signal in response to the control signal and an under-voltage signal. The under-voltage signal indicates a low supply voltage of the controller. An oscillator produces a pulse signal in response to the discharge-current signal. The pulse signal determines the off-time of the switching signal. A PWM circuit generates the switching signal in response to the pulse signal and the standby signal. The standby signal further controls the off-time of the switching signal and maintains a minimum switching frequency. The switching signal is used for regulating the output of the power supply.
摘要翻译：电压波形检测器通过对变压器的电压信号进行多次采样来产生电压反馈信号和放电时间信号。放电时间信号表示次级侧开关电流的放电时间。电压环路误差放大器放大电压反馈信号并产生控制信号。关断时间调制器相应地根据控制信号和欠压信号产生放电电流信号和待机信号。欠压信号表示控制器的低电源电压。振荡器响应于放电电流信号产生脉冲信号。脉冲信号确定开关信号的关断时间。 PWM电路响应于脉冲信号和待机信号产生开关信号。待机信号进一步控制开关信号的关断时间并保持最小开关频率。开关信号用于调节电源的输出。

27. 发明授权

US07151681B2 Multiple-sampling circuit for measuring reflected voltage and discharge time of a transformer 有权
标题翻译：用于测量变压器反射电压和放电时间的多重采样电路
公开(公告)号：US07151681B2
公开(公告)日：2006-12-19
申请号：US11022167
申请日：2004-12-21
申请人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin
发明人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： A multiple-sampling circuit is proposed for measuring a voltage signal and a discharge time of a transformer. Sampling signals are used for generating hold voltages by alternately sampling the reflected voltage from the transformer. A buffer amplifier generates a buffer voltage from the higher voltage of hold voltages. A sampling switch periodically conducts the buffer voltage to produce a voltage-feedback signal. The voltage-feedback signal is proportional to an output voltage of the switching circuit. A threshold signal added to the reflected voltage signal produces a level-shift reflected signal. A discharge-time signal is generated as the switching signal is disabled. The discharge-time signal is disabled once the level-shift signal is lower than the voltage-feedback signal. The pulse width of the discharge-time signal is therefore correlated to the discharge time of the transformer. The sampling signals are enabled to generate hold voltages only when the discharge-time signal is enabled.
摘要翻译：提出了一种多采样电路，用于测量变压器的电压信号和放电时间。采样信号用于通过交替采样来自变压器的反射电压来产生保持电压。缓冲放大器从保持电压的较高电压产生缓冲电压。采样开关周期性地进行缓冲电压以产生电压反馈信号。电压反馈信号与开关电路的输出电压成比例。添加到反射电压信号的阈值信号产生电平移位反射信号。随着切换信号被禁止，产生放电时间信号。一旦电平移位信号低于电压反馈信号，放电时间信号被禁止。因此，放电时间信号的脉冲宽度与变压器的放电时间相关。采样信号仅在放电时间信号使能时才能产生保持电压。

28. 发明授权

US07061225B2 Apparatus and method thereof for measuring output current from primary side of power converter 有权
标题翻译：用于测量功率转换器初级侧的输出电流的装置及方法
公开(公告)号：US07061225B2
公开(公告)日：2006-06-13
申请号：US10881202
申请日：2004-06-29
申请人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin
发明人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin
IPC分类号： G01R19/30 , H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： An apparatus and method thereof for measuring an output current from a primary side of a power converter are provided. A peak detector is designed to sample a peak value of a converted voltage of a primary-side switching current. A zero-current detector detects a discharge-time of a secondary-side switching current through an auxiliary winding of a transformer. An oscillator generates a switching signal for switching the power converter. An integrator generates an integrated signal by integrating the converted voltage of the primary-side switching peak current with the discharge-time. The time constant of the integrator is correlated with the switching period of the switching signal. The integrated signal is thus proportional to the output current of the power converter.
摘要翻译：提供了一种用于测量来自功率转换器的初级侧的输出电流的装置和方法。峰值检测器被设计为对初级侧开关电流的转换电压的峰值进行采样。零电流检测器检测通过变压器的辅助绕组的次级侧开关电流的放电时间。振荡器产生用于切换功率转换器的开关信号。积分器通过将初级侧开关峰值电流的转换电压与放电时间进行积分来生成积分信号。积分器的时间常数与开关信号的开关周期相关。因此，积分信号与功率转换器的输出电流成比例。

29. 发明授权

US06781356B1 PWM controller having a modulator for saving power and reducing acoustic noise 失效
标题翻译： PWM控制器具有用于节省功率并降低声学噪声的调制器
公开(公告)号：US06781356B1
公开(公告)日：2004-08-24
申请号：US10249217
申请日：2003-03-24
申请人： Ta-yung Yang , Chem-Lin Chen , Jenn-yu G. Lin
发明人： Ta-yung Yang , Chem-Lin Chen , Jenn-yu G. Lin
IPC分类号： G05F140
CPC分类号： H02M1/40 , H02M1/44 , H02M3/33507 , H02M2001/0032 , H02M2001/0041 , Y02B70/16
摘要： A modulator of a PWM controller is provided for saving power and reducing acoustic noise in the light load and no load conditions. The maximum on-time is kept as a constant and a bias current of the oscillator in the PWM controller is moderated to achieve the off-time modulation. The bias current is a function of the supply voltage and the feedback voltage, which is derived from a voltage feedback loop. A threshold voltage defines the level of the light load. A limit voltage defines the low level of the supply voltage. A bias current synthesizer generates the bias current. Reducing the bias current increases the off-time of the switching period. Once the feedback voltage is decreased lower than the threshold voltage, the bias current is reduced linearly and the off-time of the switching period is increased gradually. When the supply voltage is lower than the limit voltage, the bias current increases and determines a maximum off-time of the switching period. Keeping the maximum on-time as a constant and increasing the switching period by only increasing the off-time prevents magnetic components, such as inductors and transformers, from being saturated. Furthermore, a control circuit disables the oscillator as the PWM frequency may fall into the audio band, therefore the acoustic noise can be greatly reduced in the light load and no load conditions.
摘要翻译：提供PWM控制器的调制器，用于在轻负载和无负载条件下节省电力并降低噪声。将最大导通时间保持为恒定，并且调节PWM控制器中的振荡器的偏置电流以实现关断时间调制。偏置电流是由电压反馈回路导出的电源电压和反馈电压的函数。阈值电压定义轻负载的电平。极限电压定义电源电压的低电平。偏置电流合成器产生偏置电流。降低偏置电流会增加开关周期的关断时间。一旦反馈电压降低到低于阈值电压，则偏置电流线性减小，并且切换周期的关闭时间逐渐增加。当电源电压低于极限电压时，偏置电流增加并确定开关周期的最大关断时间。保持最大导通时间为常数，并通过增加关断时间来增加开关周期，防止磁性元件（如电感器和变压器）饱和。此外，由于PWM频率可能落入音频频带，所以控制电路使振荡器不起作用，因此在轻负载和无负载条件下可以大大降低声学噪声。

30. 发明授权

US06611439B1 PWM controller for controlling output power limit of a power supply 有权
标题翻译：用于控制电源的输出功率限制的PWM控制器
公开(公告)号：US06611439B1
公开(公告)日：2003-08-26
申请号：US10065530
申请日：2002-10-28
申请人： Ta-yung Yang , Jenn-yu G. Lin , Shu-chung Yi
发明人： Ta-yung Yang , Jenn-yu G. Lin , Shu-chung Yi
IPC分类号： H02M3335
CPC分类号： H02M3/33523 , H02M1/36 , H02M2001/0022
摘要： A PWM controller has a line voltage input that allows using an input resistor for both start-up and power-limit compensation, thus saving the power consumption, easing the PCB layout, and shrinking the power supply size. In the integrated circuit, a mirrored-resistor used for the power limit compensation is composed of a mirror MOSFET, which is associated with an op amplifier, a constant voltage and a constant current to provide a precise resistance. Thus, by properly selecting the value of the input resistor, an identical output power limit for low line and high line voltage input can be achieved.
摘要翻译： PWM控制器具有线路电压输入，允许使用输入电阻进行启动和功耗限制补偿，从而节省功耗，减轻PCB布局，缩小电源尺寸。在集成电路中，用于功率限制补偿的镜像电阻由镜像MOSFET组成，其与运算放大器，恒定电压和恒定电流相关联，以提供精确的电阻。因此，通过适当地选择输入电阻的值，可以实现对于低线路和高线路电压输入的相同的输出功率限制。

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