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111. 发明授权

US07492613B2 Control circuit of power converter having adaptive bias for detecting reflected voltage of transformer 有权
标题翻译：具有自适应偏置检测变压器反射电压的功率转换器控制电路
公开(公告)号：US07492613B2
公开(公告)日：2009-02-17
申请号：US11288726
申请日：2005-11-28
申请人： Ta-yung Yang , Chuh-Ching Li , Feng Cheng Tsao
发明人： Ta-yung Yang , Chuh-Ching Li , Feng Cheng Tsao
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H01F27/38
摘要： A control circuit for detecting the reflected voltage of a transformer is provided. A detection circuit is developed for sampling the reflected voltage. Because the pulse width of the reflected voltage is narrower at light load, a bias circuit is utilized for producing a bias signal to help the reflected voltage detection. Furthermore, a blanking circuit ensures a minimum pulse width of the reflected voltage.
摘要翻译：提供了用于检测变压器的反射电压的控制电路。开发了用于对反射电压进行采样的检测电路。因为反射电压的脉冲宽度在轻负载时较窄，因此偏置电路用于产生偏置信号以帮助反射电压检测。此外，消隐电路确保反射电压的最小脉冲宽度。

112. 发明申请

US20080309380A1 METHOD AND APPARATUS FOR DETECTING SWITCHING CURRENT OF MAGNETIC DEVICE OPERATED IN CONTINUOUS CURRENT MODE 有权
标题翻译：用于检测在连续电流模式下操作的磁性装置的开关电流的方法和装置
公开(公告)号：US20080309380A1
公开(公告)日：2008-12-18
申请号：US11763138
申请日：2007-06-14
申请人： Ta-yung Yang , Chuh-Ching Li
发明人： Ta-yung Yang , Chuh-Ching Li
IPC分类号： H03K5/01
CPC分类号： H02M3/33507 , G01R19/0092 , H02M2001/0009
摘要： The present invention provides a method and apparatus for detecting a continuous current of a switching current. A current signal is produced in response to a switching current of the magnetic device. By sampling the waveform of the current signal in response to the enabling of a switching signal, a first current signal and a second current signal are generated. A continuous current signal is produced according to the first current signal and the second current signal. The continuous current signal is corrected to the continuous current of the switching current.
摘要翻译：本发明提供一种用于检测开关电流的连续电流的方法和装置。响应于磁性装置的开关电流产生电流信号。通过响应于使能切换信号对当前信号的波形进行采样，产生第一电流信号和第二电流信号。根据第一电流信号和第二电流信号产生连续电流信号。连续电流信号被校正为开关电流的连续电流。

113. 发明授权

US07460380B2 Highly efficient switching power converter using a charge pump to power the drive circuit 有权
标题翻译：高效的开关电源转换器采用电荷泵为驱动电路供电
公开(公告)号：US07460380B2
公开(公告)日：2008-12-02
申请号：US11426318
申请日：2006-06-26
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/337
摘要： A switching power converter having a first and a second transistor are connected in series with the transformer to provide higher switching efficiency. A charge pump circuit is coupled to a drive circuit to provide a power source for driving the first transistor. A third transistor is connected between the transformer and the ground to help the switching of the transformer and the charge of the charge pump circuit. A switching control circuit is coupled to the output of the switching power converter to generate a first switching signal and a second switching signal for regulating the switching power converter. The first switching signal is coupled to drive the first transistor and the second transistor. The second switching signal is coupled to drive the third transistor.
摘要翻译：具有第一和第二晶体管的开关功率转换器与变压器串联连接以提供更高的开关效率。电荷泵电路耦合到驱动电路以提供用于驱动第一晶体管的电源。变压器和地之间连接第三个晶体管，以帮助变压器的开关和电荷泵电路的充电。开关控制电路耦合到开关功率转换器的输出端以产生第一开关信号和用于调节开关功率转换器的第二开关信号。第一开关信号被耦合以驱动第一晶体管和第二晶体管。第二开关信号被耦合以驱动第三晶体管。

114. 发明申请

US20080232147A1 RESONANT INVERTER 有权
标题翻译：共振逆变器
公开(公告)号：US20080232147A1
公开(公告)日：2008-09-25
申请号：US11688237
申请日：2007-03-19
申请人： Ta-yung Yang , Jea-Sen Lin
发明人： Ta-yung Yang , Jea-Sen Lin
IPC分类号： H02M7/537
CPC分类号： H05B41/2828
摘要： The present invention provides a low-cost resonant inverter circuit for ballast. The resonant circuit includes a transformer connected in series with a lamp to operate the lamp. A first transistor and a second transistor are coupled to switch the resonant inverter 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 inverter circuit. The transistor is turned on once the control signal is higher than a high-threshold. Next, the transistor is turned off once the control signal is lower than a low-threshold. Therefore, soft switching operation for the first transistor and the second transistor is achieved.
摘要翻译：本发明提供一种用于镇流器的低成本谐振逆变电路。谐振电路包括与灯串联连接的变压器来操作灯。耦合第一晶体管和第二晶体管以切换谐振逆变器电路。变压器的第二绕组和第三绕组用于响应谐振逆变器电路的开关电流产生控制信号。一旦控制信号高于高阈值，晶体管就会导通。接下来，一旦控制信号低于低阈值，晶体管被截止。因此，实现了第一晶体管和第二晶体管的软开关操作。

115. 发明授权

US07405595B2 High-side transistor driver having positive feedback for improving speed and power saving 失效
标题翻译：具有正反馈的高端晶体管驱动器，用于提高速度和省电
公开(公告)号：US07405595B2
公开(公告)日：2008-07-29
申请号：US11281685
申请日：2005-11-16
申请人： Ta-yung Yang , Chuh-Ching Li , Yu-Min Chen
发明人： Ta-yung Yang , Chuh-Ching Li , Yu-Min Chen
IPC分类号： H03K19/094 , H03K19/0175
CPC分类号： H03K17/04123
摘要： A high-side transistor driver including a driver circuit for generating a driving signal to drive a high-side transistor is provided. A floating supply terminal provides a supply voltage to the driver circuit. A floating ground terminal is connected to a source of the high-side transistor. A bootstrap diode is coupled between the floating supply terminal and a voltage source. A capacitor is connected to the bootstrap diode and is coupled between the floating supply terminal and the floating ground terminal. A high-voltage transistor is used for switching off the driving signal and the high-side transistor in response to an input signal. A speed-up capacitor is coupled to the driver circuit for speeding up the driving signal. Furthermore, the positive feedback circuits in the driver circuit further accelerate the driving signal and save power for the driver circuit.
摘要翻译：提供了包括用于产生用于驱动高侧晶体管的驱动信号的驱动电路的高侧晶体管驱动器。浮动电源端子向驱动器电路提供电源电压。浮动接地端子连接到高侧晶体管的源极。自举二极管耦合在浮动电源端子和电压源之间。电容器连接到自举二极管并耦合在浮动电源端子和浮动接地端子之间。高压晶体管用于响应于输入信号来关断驱动信号和高侧晶体管。加速电容器耦合到驱动器电路以加速驱动信号。此外，驱动电路中的正反馈电路进一步加速驱动信号并节省驱动电路的功率。

116. 发明申请

US20080174293A1 Controller With Loop Impedance Modulation For Power Converter 有权
标题翻译：用于电源转换器的环路阻抗调制控制器
公开(公告)号：US20080174293A1
公开(公告)日：2008-07-24
申请号：US11626026
申请日：2007-01-23
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： G05F1/656
CPC分类号： H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： A control circuit is provided to generate a mode signal at light load of the power converter. The mode signal is coupled to disable the switching signal for saving power. The impedance of an input circuit is increased in response to the mode signal. Furthermore, a soft start circuit is initiated by the mode signal when switching signal is enabled. An external capacitor associates with the impedance of the input circuit determine the off period of the switching signal.
摘要翻译：提供控制电路以在功率转换器的轻负载下产生模式信号。模式信号被耦合以禁用开关信号以节省功率。响应于模式信号，输入电路的阻抗增加。此外，当启用开关信号时，通过模式信号启动软启动电路。与输入电路的阻抗相关联的外部电容器确定开关信号的截止周期。

117. 发明申请

US20080144343A1 Compensation circuit and compensation method for current mode power converters 有权
标题翻译：电流模式电源转换器的补偿电路和补偿方法
公开(公告)号：US20080144343A1
公开(公告)日：2008-06-19
申请号：US11638479
申请日：2006-12-14
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： H02M1/00
CPC分类号： H02M3/33507 , H02M3/156
摘要： A compensation circuit and a compensation method for providing compensation of a power converter are proposed. A current sense circuit is coupled to receive a switching current for generating a current signal. A signal generation circuit is developed to generate a first compensation signal and a second compensation signal for adjusting the current signal. The first compensation signal is coupled to adjust the current signal for the output power limit of the power converter. The second compensation signal is coupled to adjust the current signal for the slope compensation. The slope of the first compensation signal is decreased when the power transistor is turned on. The slope of the second compensation signal is increased in response to the turn on of the power transistor.
摘要翻译：提出了一种用于提供功率转换器补偿的补偿电路和补偿方法。电流感测电路被耦合以接收用于产生电流信号的开关电流。开发信号发生电路以产生第一补偿信号和用于调整电流信号的第二补偿信号。第一补偿信号被耦合以调整功率转换器的输出功率极限的电流信号。第二补偿信号被耦合以调整斜率补偿的电流信号。当功率晶体管导通时，第一补偿信号的斜率减小。响应于功率晶体管的导通，第二补偿信号的斜率增加。

118. 发明申请

US20080143311A1 Method and circuit for providing compensations of current mode power converters 有权
标题翻译：用于提供电流模式功率转换器补偿的方法和电路
公开(公告)号：US20080143311A1
公开(公告)日：2008-06-19
申请号：US11638506
申请日：2006-12-14
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： G05F1/10
CPC分类号： H02M3/33507 , H02M2001/0025
摘要： A method and circuit for providing compensation of a power converter is proposed. A current sense circuit is coupled to receive a switching current for generating a current signal. A signal generation circuit is developed to generate a first compensation signal and a second compensation signal for adjusting the current signal. The first compensation signal is coupled to adjust the current signal for the output power limit of the power converter. The second compensation signal is coupled to adjust the current signal for the slope compensation. The slope of the first compensation signal is decreased when the power transistor is turned on. The slope of the second compensation signal is increased in response to the turn on of the power transistor.
摘要翻译：提出了一种用于提供功率转换器补偿的方法和电路。电流感测电路被耦合以接收用于产生电流信号的开关电流。开发信号发生电路以产生第一补偿信号和用于调整电流信号的第二补偿信号。第一补偿信号被耦合以调整功率转换器的输出功率极限的电流信号。第二补偿信号被耦合以调整斜率补偿的电流信号。当功率晶体管导通时，第一补偿信号的斜率减小。响应于功率晶体管的导通，第二补偿信号的斜率增加。

119. 发明申请

US20080036027A1 INTEGRATED CIRCUIT FOR A HIGH-SIDE TRANSISTOR DRIVER 有权
标题翻译：用于高侧晶体管驱动器的集成电路
公开(公告)号：US20080036027A1
公开(公告)日：2008-02-14
申请号：US11464075
申请日：2006-08-11
申请人： Chiu-Chih Chiang , Chih-Feng Huang , Ta-yung Yang
发明人： Chiu-Chih Chiang , Chih-Feng Huang , Ta-yung Yang
IPC分类号： H01L29/00
CPC分类号： H01L27/0629
摘要： The high voltage integrated circuit is disclosed. The high voltage integrated circuit comprises a low voltage control circuit, a floating circuit, a P substrate, a deep N well disposed in the substrate and a plurality of P wells disposed in the P substrate. The P wells and deep N well serve as the isolation structures. The low voltage control circuit is located outside the deep N well and the floating circuit is located inside the deep N well. The deep N well forms a high voltage junction barrier for isolating the control circuit from the floating circuit.
摘要翻译：公开了高压集成电路。高压集成电路包括低压控制电路，浮置电路，P衬底，设置在衬底中的深N阱以及设置在P衬底中的多个P阱。 P井和深N井作为隔离结构。低压控制电路位于深N阱外部，浮动电路位于深N阱内。深N阱形成用于将控制电路与浮置电路隔离的高压结屏障。

120. 发明申请

US20080012547A1 DETECTION CIRCUIT FOR SENSING THE INPUT VOLTAGE OF TRANSFORMER 有权
标题翻译：用于感应变压器输入电压的检测电路
公开(公告)号：US20080012547A1
公开(公告)日：2008-01-17
申请号：US11456573
申请日：2006-07-11
申请人： Chuh-Ching Li , Ta-yung Yang
发明人： Chuh-Ching Li , Ta-yung Yang
IPC分类号： G01R31/02
CPC分类号： G01R15/183
摘要： A circuit for detecting an input voltage of a transformer is provided. The circuit includes a current source circuit coupled to a winding of a transformer. A current-to-voltage circuit is coupled to the current source circuit to generate a first voltage in response to a current outputted from the current source circuit. A sample-and-hold circuit generates an output voltage by sampling the first voltage. The transformer is coupled to the input voltage, and the output voltage is correlated to the input voltage of the transformer.
摘要翻译：提供了用于检测变压器的输入电压的电路。电路包括耦合到变压器绕组的电流源电路。电流 - 电压电路耦合到电流源电路以响应于从电流源电路输出的电流产生第一电压。采样保持电路通过对第一电压进行采样来产生输出电压。变压器耦合到输入电压，输出电压与变压器的输入电压相关。

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