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    • 1. 发明授权
    • High-speed PWM control apparatus for power converters with adaptive voltage position and its driving signal generating method
    • 具有自适应电压位置的电源转换器的高速PWM控制装置及其驱动信号生成方法
    • US07109692B1
    • 2006-09-19
    • US11286321
    • 2005-11-25
    • Chung-Cheng WuQin HuangXiao-Ming Duan
    • Chung-Cheng WuQin HuangXiao-Ming Duan
    • G05F1/40
    • H02M3/157H02M1/44H02M3/1563
    • A high-speed PWM control apparatus with adaptive voltage position and a driving signal generating method thereof is provided. The present invention automatically detects a change in the loading and adjusts the voltage position instantaneously for stabilizing the voltage and reducing the loading output power consumption. The present invention does not require a clock signal to generate a driving signal and does not require an error amplifier to control the modulation. Therefore, the present invention has a fast transient response that responds to the change of the loading instantaneously and has a stabilizing effect. When the apparatus is on a continuous conduction mode (CCM), the switching frequency of the controller is still fixed even though the input voltage Vin and the output voltage Vout are changed. The electrical-magnetic noise disturbance is improved.
    • 提供一种具有自适应电压位置的高速PWM控制装置及其驱动信号产生方法。 本发明自动检测负载变化并且瞬时调节电压位置以稳定电压并降低负载输出功率消耗。 本发明不需要时钟信号来产生驱动信号,并且不需要误差放大器来控制调制。 因此,本发明具有快速瞬时响应,其瞬时响应负载变化并且具有稳定效果。 当设备处于连续导通模式(CCM)时,即使输入电压Vin和输出电压Vout改变,控制器的开关频率仍然是固定的。 电磁噪声干扰得到改善。
    • 2. 发明申请
    • Apparatus and method for continuous conduction mode boost voltage power factor correction with an average current control mode
    • 具有平均电流控制模式的连续导通模式升压电压功率因数校正的装置和方法
    • US20070024251A1
    • 2007-02-01
    • US11242915
    • 2005-10-05
    • Chung-Cheng WuQin HuangNing ZhuXin Zhang
    • Chung-Cheng WuQin HuangNing ZhuXin Zhang
    • G05F1/00
    • G05F1/70
    • The continuous conduction mode (CCM) boost voltage power factor correction apparatus with an average-current control mode of the present invention uses resettable integrators to integrate the difference voltage signal outputted from the voltage error amplifier and the input current signal obtained from detection. The integration results are then compared to control the duty cycle of the switch. Thereby, the input current and the input voltage in the AC/DC electrical power converter have a proportion relation and their phases are the same as each other. The components used in this control method are simpler than the PFC circuit of the prior art. It is easy to integrate in one chip with fewer pins. The apparatus of the present invention has a high power factor and a low total harmonic distortion (THD).
    • 具有本发明的平均电流控制模式的连续导通模式(CCM)升压电压功率因数校正装置使用可复位积分器来积分从电压误差放大器输出的差分电压信号和从检测获得的输入电流信号。 然后将积分结果进行比较,以控制开关的占空比。 因此,AC / DC电力转换器的输入电流和输入电压具有比例关系,它们的相位彼此相同。 在该控制方法中使用的部件比现有技术的PFC电路简单。 在一个芯片中集成更少的引脚很容易。 本发明的装置具有高功率因数和低总谐波失真(THD)。
    • 6. 发明申请
    • FREQUENCY JITTER GENERATOR AND PWM CONTROLLER
    • 频率抖动发生器和PWM控制器
    • US20090302911A1
    • 2009-12-10
    • US12347074
    • 2008-12-31
    • Chen-Hsung WangWei-Liang KungChung-Cheng Wu
    • Chen-Hsung WangWei-Liang KungChung-Cheng Wu
    • H03K3/017
    • H03K3/017H03K3/84H03K4/502
    • A frequency jitter generator and a frequency jitter PWM controller are provided for overcoming the shortcoming that a conventional PWM controller reduces the electromagnetic interference issue by means of varying the operating frequency of the PWM controller based on an input voltage, while resulting in the uncertainty of the range of frequency jitter and the difficulty circuit design due to the effect of the input voltage and the load. The frequency jitter generator and PWM controller adjust the range of frequency jitter by using a signal within a fixed voltage range. The invention not only gets rid of the effect of the input voltage and the loading, but also simplifies the circuit design by fixing the range of frequency jitter no greater than a predetermined percentage regardless of the operating frequency of the PWM controller.
    • 提供了一种频率抖动发生器和频率抖动PWM控制器来克服传统PWM控制器通过基于输入电压改变PWM控制器的工作频率来减少电磁干扰问题的缺点,同时导致不确定性 由于输入电压和负载的影响,频率抖动范围和电路设计难度大。 频率抖动发生器和PWM控制器通过使用固定电压范围内的信号来调整频率抖动的范围。 本发明不仅消除了输入电压和负载的影响,而且通过将频率抖动的范围固定为不大于预定百分比来简化电路设计,而不管PWM控制器的工作频率如何。
    • 8. 发明授权
    • Method and architecture for accessing hardware devices in computer system and chipset thereof
    • 用于访问计算机系统及其芯片组中的硬件设备的方法和架构
    • US07047348B2
    • 2006-05-16
    • US10128471
    • 2002-04-22
    • Chung-Cheng Wu
    • Chung-Cheng Wu
    • G06F13/36G06F13/00G06F13/14G06F13/20
    • G06F13/4027
    • A method and an architecture for accessing hardware devices in a computer system and the chipset thereof are provided. A bi-directional two-wired serial interface, for instance, a system management bus (SMB), is configured to connect an I/O device, such as a local area network adapter, to a system controller such as a southbridge or a northbridge chipset. The I/O device which includes a SMB master controller serves as a SMB master device for generating a clock signal and transmitting a data signal defined by the SMB protocol to the system controller according to the clock signal. The system controller which includes a PCI master and a SMB slave controller serves as a SMB slave device for receiving commands and data bytes in the data signal from the SMB master device to drive the PCI master to access the register block of peripherals and system memory of the computer system.
    • 提供了一种用于访问计算机系统中的硬件设备及其芯片组的方法和架构。 双向双向串行接口,例如系统管理总线(SMB)被配置为将诸如局域网适配器的I / O设备连接到诸如南桥或北桥的系统控制器 芯片组。 包括SMB主控制器的I / O设备用作用于产生时钟信号并根据时钟信号将由SMB协议定义的数据信号发送到系统控制器的SMB主设备。 包括PCI主机和SMB从控制器的系统控制器用作SMB从设备,用于从SMB主设备接收数据信号中的命令和数据字节,以驱动PCI主机访问外设寄存器块和系统存储器 计算机系统。
    • 10. 发明授权
    • Neuron MOSFET with different interpolysilicon oxide
    • 具有不同的多晶硅氧化物的神经元MOSFET
    • US5633520A
    • 1997-05-27
    • US667609
    • 1996-06-21
    • Chung-Cheng WuMing-Tzong Yang
    • Chung-Cheng WuMing-Tzong Yang
    • H01L21/822H01L27/115H01L27/108H01L29/76H01L29/788
    • H01L27/115H01L21/8221H01L29/788Y10S148/116Y10S148/117Y10S148/163Y10S438/981
    • An MOSFET device is fabricated with a plurality of conductors capacitively coupled to a first electrode, forming a mask on the surface of the first electrode exposing a predetermined zone of the first electrode, doping the first electrode through the mask, removing the mask from the surface of the first electrode, oxidizing the first electrode to form a layer of oxide over the first electrode with a thicker layer of oxide over the predetermined zone and a thinner layer of oxide elsewhere, forming at least one electrode over the first electrode on the thinner layer of oxide outside of the zone and forming at least one other electrode over the first electrode on the thicker layer of oxide inside the zone, whereby the one electrode and the other electrode have substantially different capacitive coupling to the electrode.
    • 制造具有电容耦合到第一电极的多个导体的MOSFET器件,在第一电极的表面上形成掩模,暴露第一电极的预定区域,通过掩模掺杂第一电极,从表面去除掩模 在所述第一电极上氧化所述第一电极以在所述第一电极上形成氧化层以在所述预定区域上具有较厚的氧化物层,并且在其它地方形成更薄的氧化物层,在所述较薄层上的所述第一电极上形成至少一个电极 的氧化物,并且在所述区域内的更厚的氧化物层上在所述第一电极上方形成至少一个其它电极,由此所述一个电极和所述另一个电极具有与所述电极基本上不同的电容耦合。