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1. 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。

2. 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。

3. 发明授权

US06765374B1 Low drop-out regulator and an pole-zero cancellation method for the same 失效
标题翻译：低压差稳压器和极零消除方法相同
公开(公告)号：US06765374B1
公开(公告)日：2004-07-20
申请号：US10617951
申请日：2003-07-10
申请人： Ta-yung Yang , Hsuan-I Pan , Chern-Lin Chen , Jenn-yu G. Lin
发明人： Ta-yung Yang , Hsuan-I Pan , Chern-Lin Chen , Jenn-yu G. Lin
IPC分类号： G05F156
CPC分类号： G05F1/575
摘要： 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.
摘要翻译：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。

4. 发明授权

US07417287B2 Electrostatic discharge device having controllable trigger voltage 有权
标题翻译：具有可控触发电压的静电放电装置
公开(公告)号：US07417287B2
公开(公告)日：2008-08-26
申请号：US11174018
申请日：2005-07-01
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： H01L27/01 , H01L31/0392
CPC分类号： H01L29/87
摘要： 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.
摘要翻译：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。

5. 发明授权

US07362592B2 Switching control circuit for primary-side controlled power converters 有权
标题翻译：初级侧电源转换器的开关控制电路
公开(公告)号：US07362592B2
公开(公告)日：2008-04-22
申请号：US10943318
申请日：2004-09-16
申请人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin , Chuh-Ching Li , Shao-Wei Chiu
发明人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin , Chuh-Ching Li , Shao-Wei Chiu
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： 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.
摘要翻译：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。

6. 发明授权

US07061780B2 Switching control circuit with variable switching frequency for primary-side-controlled power converters 有权
公开(公告)号：US07061780B2
公开(公告)日：2006-06-13
申请号：US10938463
申请日：2004-09-09
申请人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin , Feng Cheng Tsao , Chiu Shao Wei
发明人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin , Feng Cheng Tsao , Chiu Shao Wei
IPC分类号： H02M3/335
CPC分类号： H02M1/44 , H02M3/33523
摘要： 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.

7. 发明授权

US07042028B1 Electrostatic discharge device 有权
标题翻译：静电放电装置
公开(公告)号：US07042028B1
公开(公告)日：2006-05-09
申请号：US11079994
申请日：2005-03-14
申请人： Chih-Feng Huang , Tuo-Hsin Chien , Jenn-yu G. Lin , Ta-yung Yang
发明人： Chih-Feng Huang , Tuo-Hsin Chien , Jenn-yu G. Lin , Ta-yung Yang
IPC分类号： H01L23/60 , H01L29/66 , H02H9/00
CPC分类号： H01L27/0262
摘要： 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.
摘要翻译：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。

8. 发明授权

US06853563B1 Primary-side controlled flyback power converter 失效
标题翻译：初级侧控制反激式电源转换器
公开(公告)号：US06853563B1
公开(公告)日：2005-02-08
申请号：US10629103
申请日：2003-07-28
申请人： Ta-yung Yang , Jenn-yu G. Lin , Chern-Lin Chen
发明人： Ta-yung Yang , Jenn-yu G. Lin , Chern-Lin Chen
IPC分类号： H02M3/335 , H02M7/00
CPC分类号： H02M3/33507 , H02M1/32 , H02M2001/0006 , H02M2001/0032 , H02M2001/0041 , Y02B70/16
摘要： 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.
摘要翻译：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。

9. 发明授权

US06812769B1 Switched charge multiplier-divider 有权
标题翻译：开关电荷倍增器
公开(公告)号：US06812769B1
公开(公告)日：2004-11-02
申请号：US10640424
申请日：2003-08-12
申请人： Ta-yung Yang , Jenn-yu G. Lin , Rui-Hong Lu
发明人： Ta-yung Yang , Jenn-yu G. Lin , Rui-Hong Lu
IPC分类号： G06G712
CPC分类号： G06G7/16 , Y02P80/112
摘要： The switched charge multiplier-divider according to the present invention is constructed of CMOS devices. Capacitor charge theory is employed to implement the circuit of the switched charge multiplier-divider. The switched charge multiplier-divider includes an output capacitor and controls the voltage across the output capacitor, so that it is proportional to the product of the charge current and the charge-time interval. The switched charge multiplier-divider is ideal for use in the power factor correction (PFC) of switching mode power supplies. Potentially, it can also be applied to automatic gain control (AGC) circuits.
摘要翻译：根据本发明的开关电荷倍增器分频器由CMOS器件构成。采用电容充电理论来实现开关电荷分频器的电路。开关电荷倍增器分压器包括输出电容器并控制输出电容器两端的电压，使其与充电电流和充电时间间隔的乘积成比例。开关电荷乘法器分频器是开关电源功率因数校正（PFC）的理想选择。潜在地，它也可以应用于自动增益控制（AGC）电路。

10. 发明授权

US06721192B1 PWM controller regulating output voltage and output current in primary side 失效
标题翻译： PWM控制器调节初级侧的输出电压和输出电流
公开(公告)号：US06721192B1
公开(公告)日：2004-04-13
申请号：US10249214
申请日：2003-03-24
申请人： Ta-yung Yang , Chern-Lin Chen , Jenn-yu G. Lin , Yi-Hsin Leu
发明人： Ta-yung Yang , Chern-Lin Chen , Jenn-yu G. Lin , Yi-Hsin Leu
IPC分类号： H02M3335
CPC分类号： H02M3/33507 , H01F2038/026 , H02M2001/0025
摘要： A PWM controller according to the present invention provides a technique to control the output voltage and output current of the power supply without the feedback control circuit in the secondary side of the transformer. In order to achieve better regulation, an adaptive load and a feedback synthesizer are equipped into the PWM controller, which associated with the auxiliary winding of the transformer regulate the output voltage of the power supply as a constant. Furthermore, a programmable power limiter in the PWM controller controls the power that is delivered from the primary side to the output of the power supply. The threshold of the power limit is varied in accordance with the change of output voltage. Because the output power is the function of the output voltage of the power supply, a constant current output is realized when the output current of the power supply is greater than a maximum value.
摘要翻译：根据本发明的PWM控制器提供了在变压器的次级侧没有反馈控制电路来控制电源的输出电压和输出电流的技术。为了实现更好的调节，PWM控制器配备了自适应负载和反馈合成器，该控制器与变压器的辅助绕组相关联，将电源的输出电压调节为常数。此外，PWM控制器中的可编程功率限制器控制从初级侧输出到电源输出的功率。功率限制的阈值根据输出电压的变化而变化。由于输出功率是电源输出电压的函数，当电源的输出电流大于最大值时，可实现恒流输出。

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