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71. 发明申请

US20080043496A1 LINEAR-PREDICT SAMPLING FOR MEASURING DEMAGNETIZED VOLTAGE OF TRANSFORMER 有权
标题翻译：用于测量变压器电压的线性预测采样
公开(公告)号：US20080043496A1
公开(公告)日：2008-02-21
申请号：US11464702
申请日：2006-08-15
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： A linear-predict sampling circuit is developed to generate a feedback signal by detecting a demagnetized voltage of the transformer. A switching signal is generated in response to the feedback signal for regulating the output of the power converter. A signal-generation circuit is used to generate a sample signal in response to a first signal, a second signal, and the switching signal. The first signal is correlated to a magnetized voltage of the transformer. The second signal is correlated to the demagnetized voltage of the transformer. A sample-and-hold circuit is coupled to the transformer to generate the feedback signal by sampling the demagnetized voltage of the transformer in response to the sample signal. The feedback signal is correlated to the output voltage of the power converter.
摘要翻译：开发线性预测采样电路，通过检测变压器的去磁电压来产生反馈信号。响应于用于调节功率转换器的输出的反馈信号而产生开关信号。信号发生电路用于响应于第一信号，第二信号和开关信号产生采样信号。第一个信号与变压器的磁化电压相关。第二个信号与变压器的退磁电压相关。采样和保持电路耦合到变压器以通过响应于采样信号对变压器的去磁电压进行采样来产生反馈信号。反馈信号与功率转换器的输出电压相关。

72. 发明授权

US07235957B2 Power supply with current-sharing control and current-sharing method thereof 有权
标题翻译：具有电流分配控制和电流分配方法的电源
公开(公告)号：US07235957B2
公开(公告)日：2007-06-26
申请号：US11148862
申请日：2005-06-08
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： G05F1/573
CPC分类号： H02M3/1584 , H02M7/08
摘要： The present invention provides a power-supply apparatus with a current-sharing circuit and a current-sharing method thereof. The power supply with a current-sharing function uses a bus terminal as a current-sharing control interface. A power circuit provides an output voltage and an output current to an output terminal; and it generates a current-sense signal according to the output current. A feedback control circuit controls the power circuit according to the output of the power-supply apparatus. A current-sharing unit generates and outputs a bus signal to the bus terminal according to the current-sense signal. The current-sharing unit also generates and outputs a reference signal according to a reference voltage, the bus signal, and the output current so as to regulate the output of the power-supply apparatus through the feedback control circuit. The bus communication circuit monitors and/or controls the power-supply apparatus.
摘要翻译：本发明提供一种具有电流共享电路及其电流共享方法的电源装置。具有电流共享功能的电源使用总线端子作为电流共享控制接口。电源电路向输出端提供输出电压和输出电流; 并根据输出电流产生电流检测信号。反馈控制电路根据电源装置的输出来控制电源电路。电流共享单元根据电流检测信号产生总线信号到总线端子。电流共享单元还根据参考电压，总线信号和输出电流产生并输出参考信号，以通过反馈控制电路来调节电源装置的输出。总线通信电路监视和/或控制电源装置。

73. 发明申请

US20070024263A1 Apparatus and method of current sharing 有权
公开(公告)号：US20070024263A1
公开(公告)日：2007-02-01
申请号：US11195067
申请日：2005-08-01
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： G05F3/16
CPC分类号： G05F1/575
摘要： A current sharing apparatus and a method thereof are provided. The current sharing apparatus comprises an input terminal, an output terminal, a current-sharing control terminal, a pass transistor, a constant voltage generating unit, a feedback control circuit and a current-sharing control unit. The current-sharing control terminal provides a current-sharing control interface. The pass transistor receives an input voltage and provides an output voltage and an output current. The feedback control circuit senses the output current to provide a current-sense signal and regulates a control signal of the pass transistor for controlling an output of the current-sharing apparatus. Moreover, the current-sharing control unit electrically coupled to the current-sharing control terminal and the feedback control circuit generates a bus signal in response to the current-sense signal and a reference voltage and generates a reference signal in response to the reference voltage, the bus signal and the current-sense signal.

74. 发明申请

US20070004150A1 ELECTROSTATIC DISCHARGE PROTECTION SEMICONDUCTOR STRUCTURE 有权
标题翻译：静电放电保护半导体结构
公开(公告)号：US20070004150A1
公开(公告)日：2007-01-04
申请号：US11427773
申请日：2006-06-29
申请人： Chih-Feng Huang , Tuo-Hsin Chien , Jenn-yu Lin , Ta-yung Yang
发明人： Chih-Feng Huang , Tuo-Hsin Chien , Jenn-yu Lin , Ta-yung Yang
IPC分类号： H01L21/8234 , H01L23/62
CPC分类号： H01L27/0259
摘要： An electrostatic discharge (ESD) protection device with adjustable single-trigger or multi-trigger voltage is provided. The semiconductor structure has multi-stage protection semiconductor circuit finction and adjustable discharge capacity. The single-trigger or multi-trigger semiconductor structure may be fabricated by using the conventional semiconductor process, and can be applied to IC semiconductor design and to effectively protect the important semiconductor devices and to prevent the semiconductor devices from ESD damage. In particular, the present invention can meet the requirements of high power semiconductor device and has better protection function compared to conventional ESD protection circuit. In the present invention, a plurality of N-wells or P-wells connected in parallel are used to adjust the discharge capacity of various wells in the P-substrate so as to improve the ESD protection capability and meet different power standards.
摘要翻译：提供具有可调单触发或多触发电压的静电放电（ESD）保护装置。半导体结构具有多级保护半导体电路的功能和可调放电容量。单触发或多触发半导体结构可以通过使用传统的半导体工艺制造，并且可以应用于IC半导体设计并且有效地保护重要的半导体器件并且防止半导体器件受到ESD损坏。特别地，本发明可以满足大功率半导体器件的要求，与传统的ESD保护电路相比具有更好的保护功能。在本发明中，使用并联连接的多个N阱或P阱来调整P基板中的各个阱的放电容量，以提高ESD保护能力并满足不同的功率标准。

75. 发明申请

US20060056204A1 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：US20060056204A1
公开(公告)日：2006-03-16
申请号：US10943318
申请日：2004-09-16
申请人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu Lin , Chuh-Ching Li , Shao-Wei Chiu
发明人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu Lin , Chuh-Ching Li , Shao-Wei Chiu
IPC分类号： H02M5/27
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比例。 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。

76. 发明授权

US06967851B2 Apparatus for reducing the power consumption of a PFC-PWM power converter 有权
标题翻译：用于降低PFC-PWM功率转换器功耗的装置
公开(公告)号：US06967851B2
公开(公告)日：2005-11-22
申请号：US10737557
申请日：2003-12-15
申请人： Ta-yung Yang , Cheng-Chi Hsueh
发明人： Ta-yung Yang , Cheng-Chi Hsueh
IPC分类号： G05F1/10 , H02M1/42 , H02M3/28 , H02M3/335 , H02M7/00
CPC分类号： H02M1/4208 , H02M2001/0025 , H02M2001/0032 , Y02B70/126 , Y02B70/16 , Y02P80/112
摘要： An apparatus for reducing the power consumption of a PFC-PWM power converter is described. The apparatus includes a control terminal used to detect a line-input voltage and to control a PFC signal and a PWM signal. The apparatus further includes a PFC power-manager and a PWM power-manager. The PFC power-manager of the PFC controller determines a PFC-reference voltage for an error amplifier of the PFC controller. The PFC-reference voltage is generated in response to the voltage at the control terminal. The PFC power-manager will disable the PFC signal whenever the voltage at the control terminal drops below a low-voltage threshold voltage. The PWM power-manager will disable the PWM signal whenever the voltage at the control terminal drops below a programmable threshold voltage. Furthermore, the PWM power-manager will pull the voltage at the control terminal low to disable the PFC circuitry during light-load and zero-load conditions.
摘要翻译：描述了用于降低PFC-PWM功率转换器的功耗的装置。该装置包括用于检测线路输入电压并控制PFC信号和PWM信号的控制端子。该装置还包括PFC功率管理器和PWM功率管理器。 PFC控制器的PFC功率管理器为PFC控制器的误差放大器确定PFC参考电压。 PFC参考电压是响应于控制端的电压而产生的。每当控制端子的电压低于低电压阈值电压时，PFC功率管理器将禁用PFC信号。只要控制端的电压低于可编程阈值电压，PWM功率管理器将禁用PWM信号。此外，PWM功率管理器将将控制端子处的电压拉低，以在轻负载和零负载条件下禁用PFC电路。

77. 发明授权

US06903536B2 PFC-PWM controller having interleaved switching 有权
标题翻译： PFC-PWM控制器具有交错切换
公开(公告)号：US06903536B2
公开(公告)日：2005-06-07
申请号：US10712274
申请日：2003-11-12
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： G05F1/40 , G05F1/44 , H02M1/00 , H02M1/42 , H02M3/00
CPC分类号： H02M1/4225 , H02M2001/0032 , H02M2001/007 , Y02B70/126 , Y02B70/16 , Y02P80/112
摘要： The present invention discloses a PFC-PWM controller having interleaved switching. A PFC stage generates a PFC signal for switching a PFC boost converter of a power converter. A PWM stage generates a PWM signal for switching a DC-to-DC converter of the power converter. The PFC-PWM controller includes a power manager for generating a discharge current and a burst-signal. Under light-load conditions, the discharge current decreases in proportion to a load of the power converter. The burst signal is utilized to disable the PFC signal in a suspended condition for power saving. A pulse width of the pulse-signal ensures a dead time to spread switching signals, such as the PFC and PWM signals, and reduces switching noise. When the discharge current decreases, the pulse width of the pulse-signal will increase and a frequency of the pulse-signal will decrease correspondingly. This further reduces power consumption under light-load and zero-load conditions.
摘要翻译：本发明公开了一种具有交错切换的PFC-PWM控制器。 PFC级产生用于切换功率转换器的PFC升压转换器的PFC信号。 PWM级产生用于切换功率转换器的DC-DC转换器的PWM信号。 PFC-PWM控制器包括用于产生放电电流和突发信号的功率管理器。在轻负载条件下，放电电流与功率转换器的负载成比例地下降。脉冲串信号用于禁用处于暂停状态的PFC信号以节省功率。脉冲信号的脉冲宽度确保了扩展切换信号（如PFC和PWM信号）的死区时间，并降低了开关噪声。当放电电流减小时，脉冲信号的脉冲宽度将增加，脉冲信号的频率将相应减小。这进一步降低了轻负载和零负载条件下的功耗。

78. 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。

79. 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。

80. 发明授权

US07911813B2 Offline synchronous rectifying circuit with sense transistor for resonant switching power converter 有权
标题翻译：用于谐振开关电源转换器的带有读出晶体管的离线同步整流电路
公开(公告)号：US07911813B2
公开(公告)日：2011-03-22
申请号：US12176427
申请日：2008-07-21
申请人： Ta-yung Yang , Chen-Hui Chan , Chou-Sheng Wang , Shih-Hung Hsieh
发明人： Ta-yung Yang , Chen-Hui Chan , Chou-Sheng Wang , Shih-Hung Hsieh
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M2001/0009 , Y02B70/1433 , Y02B70/1475
摘要： A synchronous rectifying circuit of a resonant switching power converter is provided to improve the efficiency. The synchronous rectifying circuit includes a power transistor and a diode connected to a transformer and an output ground of the power converter for rectifying. A sense transistor is coupled to the power transistor for generating a mirror current correlated to a current of the power transistor. A controller generates a driving signal to control the power transistor in response to a switching-current signal. A current-sense device is coupled to the sense transistor for generating the switching-current signal in response to the mirror current. The controller enables the driving signal to turn on the power transistor once the diode is forwardly biased. The controller generates a reset signal to disable the driving signal and turn off the power transistor once the switching-current signal is lower than a threshold.
摘要翻译：提供谐振开关电源转换器的同步整流电路以提高效率。同步整流电路包括功率晶体管和连接到变压器的二极管和用于整流的功率转换器的输出地。感测晶体管耦合到功率晶体管，用于产生与功率晶体管的电流相关的反射镜电流。控制器响应于开关电流信号产生驱动信号以控制功率晶体管。电流感测装置耦合到感测晶体管，用于响应于反射镜电流产生开关电流信号。一旦二极管向前偏置，控制器使驱动信号接通功率晶体管。一旦开关电流信号低于阈值，控制器产生复位信号来禁止驱动信号并关断功率晶体管。

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