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1. 发明申请

US20080024193A1 APPARATUS, SYSTEM, AND METHOD FOR MULTIFUNCTIONAL PIN IN AN INTEGRATED CIRCUIT 失效
标题翻译：集成电路中多功能引脚的装置，系统和方法
公开(公告)号：US20080024193A1
公开(公告)日：2008-01-31
申请号：US11461303
申请日：2006-07-31
申请人： Tuck Meng Chan , Xiao Wu Gong , Yi He , Meng Kiat Jeoh , Junyang Luo
发明人： Tuck Meng Chan , Xiao Wu Gong , Yi He , Meng Kiat Jeoh , Junyang Luo
IPC分类号： H03K17/687
CPC分类号： H03K17/0822 , H03K17/133
摘要： Some embodiments of the invention include an integrated circuit having a node or pin to detect a first information during a first a detection period and to detect a second information during a second detection period. In some embodiments, the information at the pin may allow the integrated circuit to operate in a quasi-resonant operation. Other embodiments are described and claimed.
摘要翻译：本发明的一些实施例包括具有节点或引脚以在第一检测周期期间检测第一信息并在第二检测周期期间检测第二信息的集成电路。在一些实施例中，引脚处的信息可以允许集成电路在准谐振操作中操作。描述和要求保护其他实施例。

2. 发明授权

US07667526B2 Apparatus, system, and method for multifunctional pin in an integrated circuit 失效
标题翻译：集成电路中多功能引脚的装置，系统和方法
公开(公告)号：US07667526B2
公开(公告)日：2010-02-23
申请号：US11461303
申请日：2006-07-31
申请人： Tuck Meng Chan , Xiao Wu Gong , Yi He , Meng Kiat Jeoh , Junyang Luo
发明人： Tuck Meng Chan , Xiao Wu Gong , Yi He , Meng Kiat Jeoh , Junyang Luo
IPC分类号： H03K17/687
CPC分类号： H03K17/0822 , H03K17/133
摘要： Some embodiments of the invention include an integrated circuit having a node or pin to detect a first information during a first a detection period and to detect a second information during a second detection period. In some embodiments, the information at the pin may allow the integrated circuit to operate in a quasi-resonant operation. Other embodiments are described and claimed.
摘要翻译：本发明的一些实施例包括具有节点或引脚以在第一检测周期期间检测第一信息并在第二检测周期期间检测第二信息的集成电路。在一些实施例中，引脚处的信息可以允许集成电路在准谐振操作中操作。描述和要求保护其他实施例。

3. 发明授权

US07136292B1 Power supply and method for regulating supply voltage 有权
标题翻译：电源和调节电源电压的方法
公开(公告)号：US07136292B1
公开(公告)日：2006-11-14
申请号：US11192982
申请日：2005-07-29
申请人： Tuck Meng Chan , Xiaowu Gong , Jing Hu , Meng Kiat Jeoh , Kok Kee Lim , Junyang Luo
发明人： Tuck Meng Chan , Xiaowu Gong , Jing Hu , Meng Kiat Jeoh , Kok Kee Lim , Junyang Luo
IPC分类号： H02M3/335 , H02M7/44
CPC分类号： H02M1/36 , H02M3/33523 , H02M2001/0032 , Y02B70/16
摘要： In a preferred embodiment, there is provided a switched mode power supply operable in start-up mode, normal mode and standby mode. The power supply may comprise a transformer having a primary winding on a primary side and a secondary winding on a secondary side, the primary winding being coupleable to a DC input voltage, and circuitry on the secondary side being arranged to provide a DC output voltage; and a power controller. The power controller may comprise a regulation controller for regulating a DC supply voltage on a supply line during standby mode, and a high voltage device coupled to the DC input voltage and the supply line. The current through the high voltage device to the supply line, during standby mode, may be controlled by the regulation controller. During standby mode, when the supply voltage is greater than or equal to a reference voltage, the current through the high voltage device to the supply line is substantially zero. When the supply voltage is less than the reference voltage, the greater the difference between the supply voltage and the reference voltage, the greater the current through the high voltage device to the supply line. In other preferred embodiments, there is also provided the power controller itself and a method for regulating a supply voltage during standby mode.
摘要翻译：在优选实施例中，提供了一种在启动模式，正常模式和待机模式下可操作的开关模式电源。电源可以包括具有初级侧的初级绕组和次级侧的次级绕组的变压器，初级绕组可耦合到DC输入电压，并且次级侧上的电路布置成提供DC输出电压; 和电源控制器。功率控制器可以包括用于在待机模式期间调节供电线路上的直流电源电压的调节控制器和耦合到直流输入电压和电源线的高压设备。电流通过高压设备到电源线，在待机模式下，可由调节控制器控制。在待机模式下，当电源电压大于或等于参考电压时，通过高压设备到电源线的电流基本为零。当电源电压小于参考电压时，电源电压和参考电压之差越大，通过高压设备到电源线的电流越大。在其他优选实施例中，还提供了功率控制器本身以及用于在待机模式期间调节电源电压的方法。

4. 发明授权

US08456868B2 Controller for a resonant switched-mode power converter 有权
标题翻译：谐振开关型功率转换器的控制器
公开(公告)号：US08456868B2
公开(公告)日：2013-06-04
申请号：US12771467
申请日：2010-04-30
申请人： Yi He , Tuck Meng Chan , Yong Siang Teo , Xiaowu Gong , Meng Kiat Jeoh
发明人： Yi He , Tuck Meng Chan , Yong Siang Teo , Xiaowu Gong , Meng Kiat Jeoh
IPC分类号： H02M3/335
CPC分类号： H02M3/3378 , H02M3/33592 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491
摘要： An embodiment of the invention relates to an LLC power converter including a controller configured to regulate an output characteristic of the power converter by controlling a power converter switching frequency. In a first mode of operation, the controller turns off a secondary-side power switch earlier than a turn-off time of a primary-side power switch by a time difference that is controlled by a resistor coupled to an external circuit node. In a second mode of operation, the controller turns on a secondary-side power switch at substantially the same time as the primary-side power switch, and turns off the secondary-side power switch after a maximum on time that is a nonlinear function of a load current of the power converter. The nonlinear function is a substantially constant function of the load current for a value of the load current higher than a threshold value.
摘要翻译：本发明的实施例涉及一种LLC功率转换器，其包括被配置为通过控制功率转换器开关频率来调节功率转换器的输出特性的控制器。在第一操作模式中，控制器比次级侧电源开关早于初级侧电源开关的关断时间，该时间差由耦合到外部电路节点的电阻器控制。在第二操作模式中，控制器在与初级侧电源开关基本相同的时间接通次级侧电源开关，并且在作为非线性功能的最大导通时间之后关闭次级侧电源开关功率转换器的负载电流。对于高于阈值的负载电流的值，非线性函数是负载电流的基本上恒定的函数。

5. 发明申请

US20110267844A1 Controller for a Resonant Switched-Mode Power Converter 有权
标题翻译：谐振开关电源转换器的控制器
公开(公告)号：US20110267844A1
公开(公告)日：2011-11-03
申请号：US12771467
申请日：2010-04-30
申请人： Yi He , Tuck Meng Chan , Yong Siang Teo , Xiaowu Gong , Meng Kiat Jeoh
发明人： Yi He , Tuck Meng Chan , Yong Siang Teo , Xiaowu Gong , Meng Kiat Jeoh
IPC分类号： H02M3/335
CPC分类号： H02M3/3378 , H02M3/33592 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491
摘要： An embodiment of the invention relates to an LLC power converter including a controller configured to regulate an output characteristic of the power converter by controlling a power converter switching frequency. In a first mode of operation, the controller turns off a secondary-side power switch earlier than a turn-off time of a primary-side power switch by a time difference that is controlled by a resistor coupled to an external circuit node. In a second mode of operation, the controller turns on a secondary-side power switch at substantially the same time as the primary-side power switch, and turns off the secondary-side power switch after a maximum on time that is a nonlinear function of a load current of the power converter. The nonlinear function is a substantially constant function of the load current for a value of the load current higher than a threshold value.
摘要翻译：本发明的实施例涉及一种LLC功率转换器，其包括被配置为通过控制功率转换器开关频率来调节功率转换器的输出特性的控制器。在第一操作模式中，控制器比次级侧电源开关早于初级侧电源开关的关断时间，该时间差由耦合到外部电路节点的电阻器控制。在第二操作模式中，控制器在与初级侧电源开关基本相同的时间接通次级侧电源开关，并且在作为非线性功能的最大导通时间之后关闭次级侧电源开关功率转换器的负载电流。对于高于阈值的负载电流的值，非线性函数是负载电流的基本上恒定的函数。

6. 发明授权

US07742320B2 Method and apparatus for regulating power in a flyback converter 有权
标题翻译：用于调节反激式转换器功率的方法和装置
公开(公告)号：US07742320B2
公开(公告)日：2010-06-22
申请号：US11745089
申请日：2007-05-07
申请人： Jing Hu , Kok Kee Lim , Meng Kiat Jeoh , Xiao Wu Gong , Yi He
发明人： Jing Hu , Kok Kee Lim , Meng Kiat Jeoh , Xiao Wu Gong , Yi He
IPC分类号： H02M3/335 , G05F1/40
CPC分类号： H02M3/33507
摘要： An integrated circuit includes an operational amplifier configured to receive a current sense voltage (VCS) at a first input and an offset voltage at a second input. A comparator is coupled to the operational amplifier and adapted to receive at a first input an output voltage signal (VOUT) of the operational amplifier. A voltage limiting circuit is configured to receive a regulation voltage. A fold back correction circuit is coupled to the voltage limiting circuit and to a second input of the comparator. A pulse width modulator circuit is coupled to the comparator and is adapted to receive the output of comparator.
摘要翻译：集成电路包括被配置为在第一输入处接收电流检测电压（VCS）的运算放大器和在第二输入处的偏移电压。比较器耦合到运算放大器并且适于在第一输入处接收运算放大器的输出电压信号（VOUT）。电压限制电路被配置为接收调节电压。折返校正电路耦合到电压限制电路和比较器的第二输入端。脉冲宽度调制器电路耦合到比较器，并且适于接收比较器的输出。

7. 发明申请

US20080278225A1 METHOD AND APPARATUS FOR REGULATING POWER IN A FLYBACK CONVERTER 有权
标题翻译：用于调节电源转换器的方法和装置
公开(公告)号：US20080278225A1
公开(公告)日：2008-11-13
申请号：US11745089
申请日：2007-05-07
申请人： Jing Hu , Kok Kee Lim , Meng Kiat Jeoh , Xiao Wu Gong , Yi He
发明人： Jing Hu , Kok Kee Lim , Meng Kiat Jeoh , Xiao Wu Gong , Yi He
IPC分类号： G05F1/10 , G11C5/14
CPC分类号： H02M3/33507
摘要： An integrated circuit includes an operational amplifier configured to receive a current sense voltage (VCS) at a first input and an offset voltage at a second input. A comparator is coupled to the operational amplifier and adapted to receive at a first input an output voltage signal (VOUT) of the operational amplifier. A voltage limiting circuit is configured to receive a regulation voltage. A fold back correction circuit is coupled to the voltage limiting circuit and to a second input of the comparator. A pulse width modulator circuit is coupled to the comparator and is adapted to receive the output of comparator.
摘要翻译：集成电路包括被配置为在第一输入处接收电流检测电压（V SUB CS）和在第二输入处的偏移电压的运算放大器。比较器耦合到运算放大器并且适于在第一输入处接收运算放大器的输出电压信号（V OUT OUT）。电压限制电路被配置为接收调节电压。折返校正电路耦合到电压限制电路和比较器的第二输入端。脉冲宽度调制器电路耦合到比较器，并且适于接收比较器的输出。

8. 发明申请

US20100066337A1 Novel Utilization of a Multifunctional Pin Combining Voltage Sensing and Zero Current Detection to Control a Switched-Mode Power Converter 有权
标题翻译：新型利用多功能引脚组合电压检测和零电流检测来控制开关式功率转换器
公开(公告)号：US20100066337A1
公开(公告)日：2010-03-18
申请号：US12209451
申请日：2008-09-12
申请人： Xiaowu Gong , Meng Kiat Jeoh , Dong Li
发明人： Xiaowu Gong , Meng Kiat Jeoh , Dong Li
IPC分类号： G05F1/62
CPC分类号： H02M1/4225 , H02M1/32 , Y02B70/126
摘要： An embodiment of the invention relates to a power converter including an inductor coupled in series with a power switch and a resistor coupled to a winding of the inductor. Input and output power converter voltages including an input brownout condition or an output overvoltage condition are estimated, and the output voltage may be regulated, by sensing a current in the resistor. An input current waveform can thereby be controlled to replicate substantially the input voltage waveform. The controller adjusts an on time and terminates an off time of the power switch by sensing respectively a current and a change of current in the resistor. The controller may sense a current flowing in the resistor to select a line voltage range of the input voltage to the power converter. The controller may estimate an input current to the power converter employing the current flowing in the resistor.
摘要翻译：本发明的实施例涉及一种功率转换器，其包括与功率开关串联的电感器和耦合到电感器的绕组的电阻器。估计包括输入掉电条件或输出过压状态的输入和输出功率转换器电压，并且可以通过感测电阻器中的电流来调节输出电压。因此可以控制输入电流波形，以基本上复制输入电压波形。控制器通过分别检测电阻器中的电流和电流的变化来调节接通时间并终止电源开关的关闭时间。控制器可以感测在电阻器中流动的电流，以选择对功率转换器的输入电压的线路电压范围。控制器可以使用在电阻器中流动的电流来估计到功率转换器的输入电流。

9. 发明授权

US08670255B2 Utilization of a multifunctional pin combining voltage sensing and zero current detection to control a switched-mode power converter 有权
标题翻译：利用组合电压检测和零电流检测的多功能引脚来控制开关式功率转换器
公开(公告)号：US08670255B2
公开(公告)日：2014-03-11
申请号：US12209451
申请日：2008-09-12
申请人： Xiaowu Gong , Meng Kiat Jeoh , Dong Li
发明人： Xiaowu Gong , Meng Kiat Jeoh , Dong Li
IPC分类号： H02M5/42 , H02M7/04 , H02M7/68
CPC分类号： H02M1/4225 , H02M1/32 , Y02B70/126
摘要： An embodiment of the invention relates to a power converter including an inductor coupled in series with a power switch and a resistor coupled to a winding of the inductor. Input and output power converter voltages including an input brownout condition or an output overvoltage condition are estimated, and the output voltage may be regulated, by sensing a current in the resistor. An input current waveform can thereby be controlled to replicate substantially the input voltage waveform. The controller adjusts an on time and terminates an off time of the power switch by sensing respectively a current and a change of current in the resistor. The controller may sense a current flowing in the resistor to select a line voltage range of the input voltage to the power converter. The controller may estimate an input current to the power converter employing the current flowing in the resistor.
摘要翻译：本发明的实施例涉及一种功率转换器，其包括与功率开关串联的电感器和耦合到电感器的绕组的电阻器。估计包括输入掉电条件或输出过压状态的输入和输出功率转换器电压，并且可以通过感测电阻器中的电流来调节输出电压。因此可以控制输入电流波形，以基本上复制输入电压波形。控制器通过分别检测电阻器中的电流和电流的变化来调节接通时间并终止电源开关的关闭时间。控制器可以感测在电阻器中流动的电流，以选择对功率转换器的输入电压的线路电压范围。控制器可以使用在电阻器中流动的电流来估计到功率转换器的输入电流。

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