公开(公告)号：US06903421B1

公开(公告)日：2005-06-07

申请号：US10758919

申请日：2004-01-16

Applicant: Chih-Feng Huang ,  Ta-yung Yang ,  Jenn-yu G. Lin ,  Tuo-Hsin Chien

Inventor： Chih-Feng Huang ,  Ta-yung Yang ,  Jenn-yu G. Lin ,  Tuo-Hsin Chien

IPC: H01L23/62 ,  H01L27/088 ,  H01L29/06 ,  H01L29/08 ,  H01L29/76 ,  H01L29/78 ,  H01L29/94

CPC classification number: H01L29/0634 ,  H01L29/0696 ,  H01L29/0886 ,  H01L29/42368 ,  H01L29/7816 ,  H01L2924/0002 ,  H01L2924/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06765374B1

公开(公告)日：2004-07-20

申请号：US10617951

申请日：2003-07-10

Applicant: Ta-yung Yang ,  Hsuan-I Pan ,  Chern-Lin Chen ,  Jenn-yu G. Lin

Inventor： Ta-yung Yang ,  Hsuan-I Pan ,  Chern-Lin Chen ,  Jenn-yu G. Lin

IPC: G05F156

CPC classification number: G05F1/575

Abstract: A method an apparatus to dynamically modify the internal compensation of a low drop-out (LDO) linear voltage regulator is presented. The process involves creating an additional equivalent series resistance (ESR) from an internal circuit. The additional ESR of the internal circuit is sufficient to ensure DC output stability. This allows the ESR of the output capacitance to be reduced to zero if desired, for improved transient response. The zero induced by the ESR of the internal circuit is frequency compensated, so that it tracks the position of the output pole as the load varies.

Abstract translation: 提出了一种动态修改低压降（LDO）线性稳压器的内部补偿的装置的方法。 该过程涉及从内部电路产生额外的等效串联电阻（ESR）。 内部电路的额外ESR足以确保直流输出稳定性。 如果需要，这允许输出电容的ESR减小到零，以改善瞬态响应。 由内部电路的ESR引起的零频率被补偿，从而当负载变化时跟踪输出极的位置。

公开(公告)号：US08482391B2

公开(公告)日：2013-07-09

申请号：US12346901

申请日：2008-12-31

Applicant: Ta-Yung Yang ,  Jenn-Yu G. Lin ,  Yi-Chi Lin ,  Cheng-Chi Hsueh

Inventor： Ta-Yung Yang ,  Jenn-Yu G. Lin ,  Yi-Chi Lin ,  Cheng-Chi Hsueh

IPC: G05B11/01

CPC classification number: G08C19/16 ,  H02M5/2573 ,  Y10T307/832

Abstract: A wall control interface for power management includes a transmitting circuit that generates a switching signal to control a switch and achieve a phase modulation to a power line signal in response to a transmitting-data. A receiving circuit is coupled to detect the phase of the power line signal for generating a data signal and a receiving-data in response to the phase of the power line signal. The receiving circuit further generates a control signal to control power of a load in accordance with the data signal or the receiving-data. The phase modulation is achieved by controlling a turn-on angle of the power line signal. The switch remains in a turn-on state during the normal condition, which achieves good power and low current harmonic. The phase modulation is only performed during the communication of the power management.

Abstract translation: 用于电力管理的墙壁控制接口包括产生开关信号以控制开关并且响应于发送数据实现对电力线信号的相位调制的发送电路。 接收电路被耦合以检测用于响应于电力线信号的相位的数据信号和接收数据的电力线信号的相位。 接收电路还根据数据信号或接收数据产生控制负载的功率的控制信号。 通过控制电力线信号的接通角来实现相位调制。 在正常情况下，开关保持导通状态，实现良好的功率和低电流谐波。 相位调制仅在电源管理通讯期间进行。

公开(公告)号：US08358518B2

公开(公告)日：2013-01-22

申请号：US12748548

申请日：2010-03-29

Applicant: Ta-Yung Yang ,  Shao-Chun Huang ,  Chen-Hui Chan ,  Jenn-Yu G. Lin

Inventor： Ta-Yung Yang ,  Shao-Chun Huang ,  Chen-Hui Chan ,  Jenn-Yu G. Lin

IPC: H02M3/335

CPC classification number: H02M3/33523 ,  H02M3/156 ,  H02M3/157

Abstract: A switching regulator of a power converter is provided and includes a feedback-input circuit, a programming circuit, and a peak-current-threshold circuit. The feedback-input circuit is coupled to a terminal of the switching regulator for receiving a feedback signal. The feedback-input circuit is operated in a first range of a terminal signal. The programming circuit is coupled to the terminal for generating a programming signal. The programming signal is operated in a second range of the feedback signal. The peak-current-threshold circuit generates a threshold signal in accordance with the programming signal. The feedback signal is coupled to regulate the output of the power converter, and the threshold signal is coupled to limit a peak switching current of the power converter.

Abstract translation: 提供了功率转换器的开关调节器，并且包括反馈输入电路，编程电路和峰值电流阈值电路。 反馈输入电路耦合到开关稳压器的端子，用于接收反馈信号。 反馈输入电路在终端信号的第一范围内工作。 编程电路耦合到终端以产生编程信号。 编程信号在反馈信号的第二范围内工作。 峰值电流阈值电路根据编程信号产生阈值信号。 耦合反馈信号以调节功率转换器的输出，并且阈值信号被耦合以限制功率转换器的峰值切换电流。

公开(公告)号：US07936087B2

公开(公告)日：2011-05-03

申请号：US11684642

申请日：2007-03-12

Applicant: Ta-yung Yang ,  Rui-Hong Lu ,  Jenn-Yu G. Lin

Inventor： Ta-yung Yang ,  Rui-Hong Lu ,  Jenn-Yu G. Lin

IPC: H01H7/00

CPC classification number: H02J1/102 ,  H02M3/1584 ,  Y10T307/25 ,  Y10T307/406 ,  Y10T307/461 ,  Y10T307/74 ,  Y10T307/747 ,  Y10T307/766 ,  Y10T307/826 ,  Y10T307/865 ,  Y10T307/937

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07417287B2

公开(公告)日：2008-08-26

申请号：US11174018

申请日：2005-07-01

Applicant: Chih-Feng Huang ,  Ta-yung Yang ,  Jenn-yu G. Lin ,  Tuo-Hsin Chien

Inventor： Chih-Feng Huang ,  Ta-yung Yang ,  Jenn-yu G. Lin ,  Tuo-Hsin Chien

IPC: H01L27/01 ,  H01L31/0392

CPC classification number: H01L29/87

Abstract: An electrostatic discharge (ESD) device has a parasitic SCR structure and a controllable trigger voltage. The controllable trigger voltage of the ESD device is achieved by modulating a distance between an edge of a lightly doped well and an edge of a heavily doped region located at two ends of the lightly doped well. Since the distance and the trigger voltage are linearly proportional, the trigger voltage can be set to a specific value from a minimum value to a maximum value.

Abstract translation: 静电放电（ESD）器件具有寄生SCR结构和可控触发电压。 通过调制轻掺杂阱的边缘和位于轻掺杂阱的两端的重掺杂区的边缘之间的距离来实现ESD器件的可控触发电压。 由于距离和触发电压是线性比例的，因此可以将触发电压设置为从最小值到最大值的特定值。

公开(公告)号：US07362592B2

公开(公告)日：2008-04-22

申请号：US10943318

申请日：2004-09-16

Applicant: Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin ,  Chuh-Ching Li ,  Shao-Wei Chiu

Inventor： Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin ,  Chuh-Ching Li ,  Shao-Wei Chiu

IPC: H02M3/335

CPC classification number: H02M3/33507

Abstract: The present invention discloses a switching control circuit for a primary-side controlled power converter. A voltage-waveform detector produces a voltage-feedback signal and a discharge-time signal. A current-waveform detector generates a current-waveform signal by measuring a primary-side switching current. An integrator generates a current-feedback signal by integrating the current-waveform signal with the discharge time. A time constant of the integrator is correlated with the switching frequency, thus the current-feedback signal is proportional to an output current of the power converter. A PWM circuit controls the pulse width of the switching signal in response to the outputs of a voltage-loop error amplifier and a current-loop error amplifier. The output voltage and the maximum output current of the power converter are therefore regulated.

Abstract translation: 本发明公开了一种用于初级侧受控电力转换器的开关控制电路。 电压波形检测器产生电压反馈信号和放电时间信号。 电流波形检测器通过测量初级侧开关电流产生电流波形信号。 积分器通过将电流波形信号与放电时间进行积分来产生电流反馈信号。 积分器的时间常数与开关频率相关，因此电流反馈信号与功率转换器的输出电流成正比。 PWM电路响应于电压环路误差放大器和电流环路误差放大器的输出来控制开关信号的脉冲宽度。 因此调节功率转换器的输出电压和最大输出电流。

公开(公告)号：US07061780B2

公开(公告)日：2006-06-13

申请号：US10938463

申请日：2004-09-09

Applicant: Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin ,  Feng Cheng Tsao ,  Chiu Shao Wei

Inventor： Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin ,  Feng Cheng Tsao ,  Chiu Shao Wei

IPC: H02M3/335

CPC classification number: H02M1/44 ,  H02M3/33523

Abstract: The invention presents a switching control circuit for a primary-side-controlled power converter. A pattern generator produces a digital pattern to control a programmable capacitor that is connected to an oscillator, which produces frequency hopping to reduce the EMI. A voltage-waveform detector produces a voltage-feedback signal and a discharge-time signal by multi-sampling a voltage signal of a transformer. A current-waveform detector and an integrator generate a feedback signal. The integration of a current-waveform signal with a timing signal generates the average-current signal. Time constant of the integrator is correlated to the switching frequency. The oscillator generates the timing signal and a pulse signal in response to the output of a current-loop error amplifier. A PWM circuit generates the switching signal in response to the pulse signal and the output of a voltage-loop error amplifier for switching the switching device and regulating the output of the power converter.

公开(公告)号：US07042028B1

公开(公告)日：2006-05-09

申请号：US11079994

申请日：2005-03-14

Applicant: Chih-Feng Huang ,  Tuo-Hsin Chien ,  Jenn-yu G. Lin ,  Ta-yung Yang

Inventor： Chih-Feng Huang ,  Tuo-Hsin Chien ,  Jenn-yu G. Lin ,  Ta-yung Yang

IPC: H01L23/60 ,  H01L29/66 ,  H02H9/00

CPC classification number: H01L27/0262

Abstract: An electrostatic discharge (ESD) device, which functions like a diode during normal IC operation and like a SCR during an electrostatic discharge event, is provided. To form an equivalent SCR structure, the ESD device includes a plurality of N+ regions and a plurality of P+ regions formed inside an N-well. The P+ regions and the N+ regions are formed adjacent to each other in a sequence, and the regions located at both ends of the sequence are the N+ regions. In addition, the ESD device is integrated with a pad and is formed under the pad. Furthermore, since the pad has a large surface area and is plated to be a good electrical conductor, the current distribution in the ESD device is uniform.

Abstract translation: 提供了在静电放电事件期间在正常IC操作期间像二极管一样工作的静电放电（ESD）装置。 为了形成等效的SCR结构，ESD器件包括形成在N阱内的多个N +区和多个P +区。 P +区域和N +区域以序列形式彼此相邻，并且位于序列两端的区域是N +区域。 此外，ESD装置与垫整合并形成在垫下。 此外，由于焊盘具有大的表面积并被电镀成良好的导体，所以ESD器件中的电流分布是均匀的。

公开(公告)号：US06853563B1

公开(公告)日：2005-02-08

申请号：US10629103

申请日：2003-07-28

Applicant: Ta-yung Yang ,  Jenn-yu G. Lin ,  Chern-Lin Chen

Inventor： Ta-yung Yang ,  Jenn-yu G. Lin ,  Chern-Lin Chen

IPC: H02M3/335 ,  H02M7/00

CPC classification number: H02M3/33507 ,  H02M1/32 ,  H02M2001/0006 ,  H02M2001/0032 ,  H02M2001/0041 ,  Y02B70/16

Abstract: The present invention provides a primary-side flyback power converter that supplies a constant voltage output and a constant current output. To generate a well-regulated output voltage under varying load conditions, a PWM controller is included in the power converter in order to generate a PWM signal controlling a switching transistor in response to a flyback voltage sampled from a first primary winding of the power supply transformer. Several improvements are included in this present invention to overcome the disadvantages of prior-art flyback power converters. Firstly, the flyback energy of the first primary winding is used as a DC power source for the PWM controller in order to reduce power consumption. A double sample amplifier samples the flyback voltage just before the transformer current drops to zero. Moreover, an offset current is pulled from a detection input of the double sample amplifier in order to generate a more accurate DC output voltage. The offset current is generated in response to the temperature in order to compensate for temperature-induced voltage fluctuations across the output rectifier. Ultimately, in order to maintain a constant output current, the PWM controller modulates the switching frequency in response to the output voltage.

Abstract translation: 本发明提供了提供恒定电压输出和恒定电流输出的初级侧反激式功率转换器。 为了在变化的负载条件下产生良好调节的输出电压，PWM控制器被包括在功率转换器中，以便响应于从电源变压器的第一初级绕组采样的回扫电压产生控制开关晶体管的PWM信号 。 在本发明中包括若干改进以克服现有技术的反激式功率转换器的缺点。 首先，为了降低功耗，首先将初级绕组的回扫能量用作PWM控制器的直流电源。 双倍采样放大器在变压器电流下降到零之前对反激电压进行采样。 此外，从双倍放大器的检测输入端拉出偏移电流，以产生更精确的直流输出电压。 偏移电流响应于温度而产生，以便补偿输出整流器两端的温度感应电压波动。 最终，为了保持恒定的输出电流，PWM控制器响应于输出电压来调制开关频率。