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1.再颁专利Phase shift modulation-based control of amplitude of AC voltage output produced by double-ended DC-AC converter circuitry for powering high voltage load such as cold cathode fluorescent lamp 失效由双端直流 - 交流转换器电路产生的交流电压输出振幅的相移调制控制，为高压负载供电，如冷阴极荧光灯公开(公告)号：USRE43808E1
公开(公告)日：2012-11-20
申请号：US12547882
申请日：2009-08-26
IPC分类号： H05B41/16
CPC分类号： H05B41/2824 , H05B41/3927
摘要： A double-ended, DC-AC converter supplies AC power to a load, such as a cold cathode fluorescent lamp used to back-light a liquid crystal display. First and second converter stages generate respective first and second sinusoidal voltages having the same frequency and amplitude, but having a controlled phase difference therebetween. By employing a voltage controlled delay circuit to control the phase difference between the first and second sinusoidal voltages, the converter is able to vary the amplitude of the composite voltage differential produced across the opposite ends of the load. The converter may be either voltage fed or current fed.
摘要翻译： 双端DC-AC转换器为负载提供交流电源，例如用于背光液晶显示器的冷阴极荧光灯。 第一和第二转换器级产生具有相同频率和幅度的相应的第一和第二正弦电压，但是它们之间具有受控的相位差。 通过采用电压控制延迟电路来控制第一和第二正弦电压之间的相位差，转换器能够改变在负载的相对端产生的复合电压差的振幅。 转换器可以是电压馈送或电流馈送。
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2.发明授权DC-AC converter having phase-modulated, double-ended, half-bridge topology for powering high voltage load such as cold cathode fluorescent lamp 失效DC-AC转换器具有用于为诸如冷阴极荧光灯等高压负载供电的相位调制双端半桥拓扑公开(公告)号：US07560872B2
公开(公告)日：2009-07-14
申请号：US11175486
申请日：2005-07-06
CPC分类号： H05B41/3927 , H05B41/2828
摘要： A phase-modulated, double-ended, half-bridge topology-based DC-AC converter supplies AC power to a load, such as a cold cathode fluorescent lamp used to back-light a liquid crystal display. First and second converter stages generate respective first and second sinusoidal voltages having the same frequency and amplitude, but having a controlled phase difference therebetween. By employing a voltage controlled delay circuit to control the phase difference between the first and second sinusoidal voltages, the converter is able to vary the amplitude of the composite voltage differential produced across the opposite ends of the load.
摘要翻译： 一个基于相位调制，双端，半桥拓扑的DC-AC转换器为负载供电，如用于背光液晶显示器的冷阴极荧光灯。 第一和第二转换器级产生具有相同频率和幅度的相应的第一和第二正弦电压，但是它们之间具有受控的相位差。 通过采用电压控制延迟电路来控制第一和第二正弦电压之间的相位差，转换器能够改变在负载的相对端产生的复合电压差的振幅。
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3.发明授权Phase shift modulation-based control of amplitude of AC voltage output produced by double-ended DC-AC converter circuitry for powering high voltage load such as cold cathode fluorescent lamp 失效由双端直流 - 交流转换器电路产生的交流电压输出振幅的相移调制控制，为高压负载供电，如冷阴极荧光灯公开(公告)号：US07368880B2
公开(公告)日：2008-05-06
申请号：US11046976
申请日：2005-01-31
IPC分类号： H05B41/16
CPC分类号： H05B41/2824 , H05B41/3927
摘要： A double-ended, DC-AC converter supplies AC power to a load, such as a cold cathode fluorescent lamp used to back-light a liquid crystal display. First and second converter stages generate respective first and second sinusoidal voltages having the same frequency and amplitude, but having a controlled phase difference therebetween. By employing a voltage controlled delay circuit to control the phase difference between the first and second sinusoidal voltages, the converter is able to vary the amplitude of the composite voltage differential produced across the opposite ends of the load. The converter may be either voltage fed or current fed.
摘要翻译： 双端DC-AC转换器为负载提供交流电源，例如用于背光液晶显示器的冷阴极荧光灯。 第一和第二转换器级产生具有相同频率和幅度的相应的第一和第二正弦电压，但是它们之间具有受控的相位差。 通过采用电压控制延迟电路来控制第一和第二正弦电压之间的相位差，转换器能够改变在负载的相对端产生的复合电压差的振幅。 转换器可以是电压馈送或电流馈送。
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4.发明授权DC-AC converter having phase-modulated, double-ended, full-bridge topology for powering high voltage load such as cold cathode fluorescent lamp 失效DC-AC转换器具有用于为诸如冷阴极荧光灯等高压负载供电的相位调制双端全桥拓扑公开(公告)号：US07564193B2
公开(公告)日：2009-07-21
申请号：US11175488
申请日：2005-07-06
IPC分类号： H05B41/24
CPC分类号： H05B41/2828 , H05B41/3927
摘要： A phase-modulated, double-ended, full-bridge topology-based DC-AC converter supplies AC power to a load, such as a cold cathode fluorescent lamp used to back-light a liquid crystal display. First and second converter stages generate respective first and second sinusoidal voltages having the same frequency and amplitude, but having a controlled phase difference therebetween. By employing a voltage controlled delay circuit to control the phase difference between the first and second sinusoidal voltages, the converter is able to vary the amplitude of the composite voltage differential produced across the opposite ends of the load.
摘要翻译： 一个基于相位调制，双端，全桥拓扑的DC-AC转换器为负载供电，如用于背光液晶显示器的冷阴极荧光灯。 第一和第二转换器级产生具有相同频率和幅度的相应的第一和第二正弦电压，但是它们之间具有受控的相位差。 通过采用电压控制延迟电路来控制第一和第二正弦电压之间的相位差，转换器能够改变在负载的相对端产生的复合电压差的振幅。
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5.发明授权Controller and driver architecture for double-ended circuitry for powering cold cathode fluorescent lamps 失效用于为冷阴极荧光灯供电的双端电路的控制器和驱动器架构公开(公告)号：US07075247B2
公开(公告)日：2006-07-11
申请号：US10927756
申请日：2004-08-27
CPC分类号： H05B41/282
摘要： A distributed controller and DC voltage switch-driver system supplies AC power to a cold cathode fluorescent lamp of the type used to backlight a liquid crystal display. The system includes a local controller and lamp operation-monitoring subsystem, which generates two pairs of low voltage drive signals. These drive signals are distributed over low voltage wires to respective pairs of step-up transformer-driving switches installed at opposite ends of the lamp. The high voltage AC outputs of the two transformers have the same frequency, but opposite phase, to reduce the voltage ratings of the components that are installed at the opposite ends of the lamp. The use of low voltage connections from the local controller to driver circuitry at the far end of the lamp serves to reduce the cost of the components, and results in lower emitted noise and lower energy lost to capacitive coupling.
摘要翻译： 分布式控制器和直流电压开关驱动器系统为用于背光液晶显示器的冷阴极荧光灯提供交流电源。 该系统包括本地控制器和灯操作监控子系统，其产生两对低压驱动信号。 这些驱动信号通过低压电线分布到安装在灯的相对端的各对升压变压器驱动开关。 两个变压器的高压交流输出具有相同的频率，但相反的相位，以降低安装在灯的两端的部件的额定电压。 使用从本地控制器到灯的远端的驱动器电路的低压连接用于降低部件的成本，并且导致较低的发射噪声，并降低电容耦合损耗的能量。
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公开(公告)号：US5189600A
公开(公告)日：1993-02-23
申请号：US810247
申请日：1991-12-19
CPC分类号： G05F1/563 , G05F3/22 , H02M3/33507 , H04N5/63 , H02M2001/0032 , Y02B70/16
摘要： A power supply includes a main power supply section having power dissipating components therein and a stand-by power supply section. When the main power supply section is off, the stand-by power supply section uses the power dissipating components in the main power supply section to dissipate waste power. When the main power supply section is on, power from a secondary power supply driven by the output from the main power supply section is used to drive the stand-by power supply section thereby reducing any power dissipating requirements of the stand-by power supply section.
摘要翻译： 电源包括其中具有功率消耗部件的主电源部分和备用电源部分。 当主电源部分断开时，待机电源部分使用主电源部分中的功率消耗部件来耗散废电力。 当主电源部分接通时，使用由主电源部分的输出驱动的二次电源的电力来驱动备用电源部分，从而减少备用电源部分的任何功率耗散要求 。
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7.发明授权Digitally synchronized integrator for noise rejection in system using PWM dimming signals to control brightness of cold cathode fluorescent lamp for backlighting liquid crystal display 有权数字同步积分器，用于系统中的噪声抑制，使用PWM调光信号控制冷阴极荧光灯的亮度用于背光液晶显示公开(公告)号：US07907115B2
公开(公告)日：2011-03-15
申请号：US12409238
申请日：2009-03-23
申请人： Dong Zheng , Robert L. Lyle, Jr. , Barry Harvey , Brian V. North
发明人： Dong Zheng , Robert L. Lyle, Jr. , Barry Harvey , Brian V. North
IPC分类号： G09G3/36
CPC分类号： H05B41/3927 , G09G3/2014 , G09G3/3406 , H05B41/282
摘要： An apparatus and method for controlling the operation of a utility device, such as a cold cathode fluorescent lamp that is powered in accordance with a pulse width modulation (PWM) signal, includes an analog sensor which monitors the utility device to derive an output signal representative of the PWM signal. An integrating analog-to-digital converter (ADC), which is coupled to the sensor and has its operation synchronized with an integral multiple of the period of the PWM signal, produces an output representative of an average of the output of the utility device.
摘要翻译： 用于控制诸如根据脉宽调制（PWM）信号供电的冷阴极荧光灯的实用设备的操作的装置和方法包括模拟传感器，其监视该效用器件以导出输出信号代表 的PWM信号。 集成模数转换器（ADC），其耦合到传感器并且具有与PWM信号的周期的整数倍同步的操作，产生代表公用设备的输出的平均值的输出。
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8.发明授权Digitally synchronized integrator for noise rejection in system using PWM dimming signals to control brightness of light source 有权数字同步积分器，用于系统中的噪声抑制，使用PWM调光信号来控制光源的亮度公开(公告)号：US07528818B2
公开(公告)日：2009-05-05
申请号：US11237075
申请日：2005-09-28
申请人： Dong Zheng , Robert L. Lyle, Jr. , Barry Harvey , Brian B. North
发明人： Dong Zheng , Robert L. Lyle, Jr. , Barry Harvey , Brian B. North
IPC分类号： G09G3/36
CPC分类号： H05B41/3927 , G09G3/2014 , G09G3/3406 , H05B41/282
摘要： An apparatus and method for controlling the operation of a utility device, such as a cold cathode fluorescent lamp that is powered in accordance with a pulse width modulation (PWM) signal, includes an analog sensor which monitors the utility device to derive an output signal representative of the PWM signal. An integrating analog-to-digital converter (ADC), which is coupled to the sensor and has its operation synchronized with an integral multiple of the period of the PWM signal, produces an output representative of an average of the output of the utility device.
摘要翻译： 用于控制诸如根据脉宽调制（PWM）信号供电的冷阴极荧光灯的实用设备的操作的装置和方法包括模拟传感器，其监视该效用器件以导出输出信号代表 的PWM信号。 集成模数转换器（ADC），其耦合到传感器并且具有与PWM信号的周期的整数倍同步的操作，产生代表公用设备的输出的平均值的输出。
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公开(公告)号：US5010292A
公开(公告)日：1991-04-23
申请号：US449664
申请日：1989-12-12
申请人： Robert L. Lyle, Jr.
发明人： Robert L. Lyle, Jr.
IPC分类号： G05F1/56
CPC分类号： G05F1/56
摘要： A series pass voltage regulator is provided which has reduced power dissipation in the semiconductor components of its output stage. The output stage includes first and second impedances which are electrically connected in parallel for collectively carrying a load current supplied at an output of the regulator. The first impedance comprises the series combination of a transistor collector-emitter output impedance and a resistor, while the second impedance comprises the series combination of a transistor collector-emitter output impedance and two diodes. The bases of the two transistors are coupled to the output of an error amplifier to effect control of the output impedances. In all high load current situations, the resistor dissipates more than 75% of the power dissipated in the output stage.
摘要翻译： 提供了一种串联通过电压调节器，其在其输出级的半导体部件中具有降低的功率消耗。 输出级包括并联电连接以共同承载在调节器的输出处提供的负载电流的第一和第二阻抗。 第一阻抗包括晶体管集电极 - 发射极输出阻抗和电阻器的串联组合，而第二阻抗包括晶体管集电极 - 发射极输出阻抗和两个二极管的串联组合。 两个晶体管的基极耦合到误差放大器的输出端以实现输出阻抗的控制。 在所有高负载电流情况下，电阻消耗输出级功耗的75％以上。
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10.发明授权公开(公告)号：US08866453B2
公开(公告)日：2014-10-21
申请号：US12550081
申请日：2009-08-28
申请人： Robert L. Lyle, Jr.
发明人： Robert L. Lyle, Jr.
CPC分类号： H02M3/156 , H02M3/158 , H02M2001/0009
摘要： A Buck switching regulator includes first Buck switching regulator circuitry is operable to generate a first output voltage from an input voltage and operable to generate a first sensed voltage having a value that is proportional to an output current being provided by the first Buck switching regulator circuitry. The first Buck switching regulator circuitry receives an input current and operates at a first duty cycle determined by a duty cycle signal. Input current sensing circuitry includes second Buck switching regulator circuitry coupled to the first Buck regulator switching circuitry to receive the duty cycle signal and to receive the first sensed voltage as an input voltage to the second Buck switching regulator circuitry. The second Buck switching regulator circuitry is operable responsive to the duty cycle signal to generate a second output voltage from the first sensed voltage. The second output voltage has a value that is proportional to the input current being supplied to the first Buck switching regulator circuitry. Such a Buck switching regulator can be utilized in a variety of different types of electronic systems, such as laptop computer systems, and can also be used in charging systems in laptop computer and other types of electronic systems.
摘要翻译： 降压开关调节器包括第一降压开关稳压器电路，其可操作以从输入电压产生第一输出电压并且可操作以产生具有与由第一降压开关稳压器电路提供的输出电流成比例的值的第一感测电压。 第一降压开关稳压器电路接收输入电流并在由占空比信号确定的第一占空比下工作。 输入电流感测电路包括耦合到第一降压稳压器开关电路的第二降压开关稳压器电路，以接收占空比信号并将第一感测电压作为第二降压开关稳压器电路的输入电压接收。 第二降压开关稳压器电路响应于占空比信号而工作，以从第一感测电压产生第二输出电压。 第二输出电压具有与被提供给第一降压开关稳压器电路的输入电流成比例的值。 这种降压开关调节器可以用于各种不同类型的电子系统，例如膝上型计算机系统，并且还可以用于膝上型计算机和其他类型的电子系统中的充电系统。
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