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91. 发明申请

US20090003019A1 SYNCHRONOUS RECTIFICATION CIRCUIT FOR POWER CONVERTERS 有权
标题翻译：用于电力转换器的同步整流电路
公开(公告)号：US20090003019A1
公开(公告)日：2009-01-01
申请号：US12208594
申请日：2008-09-11
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： H02M3/335
CPC分类号： H02M7/217 , H02M3/33592 , Y02B70/1433 , Y02B70/1441 , Y02B70/1475
摘要： A synchronous rectification circuit for power converters operable under fixed and/or variable frequencies where no current sense circuit or phase-lock circuit are needed is provided. It has a power switch coupled to a transformer for the rectification. A signal-generation circuit is used for generating a control signal in response to a magnetized voltage of the transformer, a demagnetized voltage of the transformer, and a magnetization period of the transformer. The control signal is coupled to turn on the power switch. The enable period of the control signal is correlated to a demagnetization period of the transformer.
摘要翻译：提供了在固定和/或可变频率下可操作的电力转换器的同步整流电路，其中不需要电流检测电路或锁相电路。它具有耦合到用于整流的变压器的电源开关。信号发生电路用于响应于变压器的磁化电压，变压器的退磁电压和变压器的磁化周期产生控制信号。控制信号被耦合以打开电源开关。控制信号的使能期间与变压器的退磁期相关。

92. 发明授权

US07405545B2 Voltage-regulator and power supply having current sharing circuit 失效
标题翻译：电压调节器和电源具有电流共享电路
公开(公告)号：US07405545B2
公开(公告)日：2008-07-29
申请号：US11148821
申请日：2005-06-08
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： G05F1/565 , H02J1/10
CPC分类号： G05F3/262 , G05F3/242
摘要： The present invention proposes a voltage-regulator and a power supply having a current-sharing circuit. The voltage-regulator capable of current sharing uses an enabling terminal as a current-sharing control interface. A pass transistor supplies an output voltage and an output current to an output terminal of the voltage-regulator. A feedback control circuit generates a control signal to control the pass transistor in response to a reference voltage. A current-sharing unit is coupled to the enabling terminal and the feedback control circuit for generating a bus signal in response to the current-sense signal and the reference voltage and generating the reference signal in response to the reference voltage, the bus signal and the current-sense signal.
摘要翻译：本发明提出一种具有电流共享电路的电压调节器和电源。能够进行电流共享的电压调节器使用使能端子作为电流共享控制接口。传输晶体管将输出电压和输出电流提供给电压调节器的输出端。反馈控制电路响应于参考电压产生控制信号以控制传输晶体管。电流共享单元耦合到使能端子和反馈控制电路，用于响应于电流检测信号和参考电压产生总线信号，并响应于参考电压，总线信号和电流检测信号。

93. 发明申请

US20080136345A1 RESONANT BALLAST CIRCUIT 失效
标题翻译：谐振电路
公开(公告)号：US20080136345A1
公开(公告)日：2008-06-12
申请号：US11608080
申请日：2006-12-07
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： H01J7/44
CPC分类号： H05B41/2856 , Y10S315/05
摘要： A low cost ballast circuit for fluorescent lamp is provided. A fluorescent lamp is connected in series with a resonant circuit having a transformer. A first switch and a second switch are coupled to switch the resonant circuit. A first winding of the transformer is connected in series with a capacitor to form the resonant circuit. A second winding and a third winding of the transformer are used for generating control signals in response to a switching current of the resonant circuit. The first switch and the second switch are controlled in response to the control signals. Furthermore, soft switching operation for the first switch and the second switch can be achieved by the present invention.
摘要翻译：提供了一种用于荧光灯的低成本镇流器电路。荧光灯与具有变压器的谐振电路串联连接。耦合第一开关和第二开关以切换谐振电路。变压器的第一绕组与电容器串联连接以形成谐振电路。变压器的第二绕组和第三绕组用于响应谐振电路的开关电流产生控制信号。响应于控制信号来控制第一开关和第二开关。此外，通过本发明可以实现第一开关和第二开关的软开关操作。

94. 发明申请

US20080062725A1 MULTI-CHANNELS POWER CONVERTER HAVING POWER SAVING MEANS TO IMPROVE LIGHT LOAD EFFICIENCY 审中-公开
标题翻译：具有节能手段的多通道功率转换器可提高光负载效率
公开(公告)号：US20080062725A1
公开(公告)日：2008-03-13
申请号：US11309681
申请日：2006-09-11
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： H02M3/335
CPC分类号： H02M3/33561 , H02M2001/0032 , Y02B70/16
摘要： The present invention provides a control circuit for multi-channels power converter to save power at light load. The control circuit comprises a modulation circuit and an oscillation circuit to modulate the switching frequency of switching signals for power saving. The modulation circuit generates a modulation signal in response to the first feedback signal and the second feedback signal. The oscillation circuit is coupled to the modulation circuit to control the switching frequency of switching signals in accordance with the modulation signal. The switching frequency of the first switching signal can be linearly decreased in response to the decrease of the load when the second switching signal is enabled. The switching frequency of the first switching signal can be further reduced once the second switching signal is disabled.
摘要翻译：本发明提供一种用于多通道功率转换器的控制电路，用于在轻负载时节省功率。控制电路包括调制电路和振荡电路，以调制切换信号的开关频率以节省功率。调制电路根据第一反馈信号和第二反馈信号产生调制信号。振荡电路耦合到调制电路，以根据调制信号控制开关信号的开关频率。当第二切换信号被使能时，响应于负载的减小，第一开关信号的开关频率可以线性地减小。一旦禁用第二开关信号，第一开关信号的开关频率就可以进一步减小。

95. 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。

96. 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。

97. 发明授权

US07203079B2 Switching controller having frequency hopping for power supplies 有权
标题翻译：开关控制器具有电源跳频功能
公开(公告)号：US07203079B2
公开(公告)日：2007-04-10
申请号：US10898389
申请日：2004-07-23
申请人： Ta-yung Yang , Guo-Kiang Hung , Song-Yi Lin
发明人： Ta-yung Yang , Guo-Kiang Hung , Song-Yi Lin
IPC分类号： H02M1/12
CPC分类号： H02M3/33523 , H02M1/44
摘要： A switching controller having frequency hopping is used for reducing the EMI of a power supply. A pattern generator generates a digital pattern code in response to a clock signal. An oscillator generates an oscillation signal for determining a switching frequency of a switching signal. A programmable capacitor coupled to the oscillator modulates the switching frequency in response to the variation of the digital pattern code. An attenuator connected to a voltage feedback loop attenuates a feedback signal. The feedback signal controls the pulse width of the switching signal. A programmable resistor coupled to the attenuator determines an attenuation rate of the attenuator in response to the digital pattern code. The attenuation rate is increased as the switching frequency increases. The pulse width of the switching signal is thus reduced, which compensates the decrease of the switching period and keeps the output power and the output voltage constant.
摘要翻译：具有跳频的开关控制器用于降低电源的EMI。模式发生器响应于时钟信号产生数字模式码。振荡器产生用于确定开关信号的开关频率的振荡信号。耦合到振荡器的可编程电容器响应于数字图形码的变化来调制开关频率。连接到电压反馈环路的衰减器衰减反馈信号。反馈信号控制开关信号的脉冲宽度。耦合到衰减器的可编程电阻器响应于数字图案码确定衰减器的衰减率。衰减率随着开关频率的增加而增加。因此，开关信号的脉冲宽度被减小，这补偿了开关周期的减小并保持输出功率和输出电压恒定。

98. 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.

99. 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。

100. 发明授权

US07061776B2 Half-bridge flyback power converter 有权
公开(公告)号：US07061776B2
公开(公告)日：2006-06-13
申请号：US10889849
申请日：2004-07-12
申请人： Ta-yung Yang , Song-Yi Lin , Pei-Hsuan Cheng
发明人： Ta-yung Yang , Song-Yi Lin , Pei-Hsuan Cheng
IPC分类号： H02M3/335
CPC分类号： H02M1/34 , H02M3/33569 , H02M2001/346 , Y02B70/1491
摘要： A half-bridge flyback power converter is provided. The half-bridge flyback power converter comprises a high-side switch and a low-side switch periodically conducting an input voltage to a primary winding of a transformer. When the high-side switch and the low-side switch are switched off, energy stored in the transformer is transmitted to a secondary circuit and serves to charge a bulk capacitor. A forward diode facilitates to combine the input voltage with a voltage across the bulk capacitor for powering the secondary circuit. Therefore, the power consumption of the leakage inductance is reduced and circuit topology is simplified.

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