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1. 发明授权

US08558523B2 System and method of intermittent diode braking for multiple phase voltage regulator 有权
标题翻译：多相电压调节器间歇二极管制动系统及方法
公开(公告)号：US08558523B2
公开(公告)日：2013-10-15
申请号：US13047378
申请日：2011-03-14
申请人： Weihong Qiu , Chun Cheung , Faisal Ahmad
发明人： Weihong Qiu , Chun Cheung , Faisal Ahmad
IPC分类号： G05F1/565 , G05F1/59
CPC分类号： H02M3/1584
摘要： A method of operating a regulator controller IC for performing intermittent diode braking for controlling a multiple phase voltage regulator. The method includes receiving at least one signal for detecting repetitive load transients, determining a rate of the repetitive load transients, generating diode braking control signals, each for applying diode braking to a corresponding one of multiple phases for at least one load transient when the repetitive load transients are below a first rate, and controlling the diode braking control signals to drop application of diode braking of at least one phase for at least one load transient when the repetitive load transients are at least the first rate. The method may include rotating the application of diode braking among the phases during successive applications of diode braking. The method may include dropping an increased number of phases for diode braking as the rate of repetitive load transients is increased.
摘要翻译：一种用于执行用于控制多相电压调节器的间歇二极管制动的调节器控制器IC的方法。该方法包括接收至少一个用于检测重复负载瞬变的信号，确定重复负载瞬变的速率，产生二极管制动控制信号，每个用于将二极管制动施加到至少一个负载瞬变的相应的一个相，当重复负载瞬变至少为第一速率时，负载瞬变低于第一速率，并且控制二极管制动控制信号以降低至少一个相位的二极管制动的至少一个负载瞬变的应用。该方法可以包括在二极管制动的连续应用期间在相间旋转二极管制动的应用。该方法可以包括当重复负载瞬变的速率增加时，减少用于二极管制动的增加的相位数。

2. 发明申请

US20110241640A1 SYSTEM AND METHOD OF INTERMITTENT DIODE BRAKING FOR MULTIPLE PHASE VOLTAGE REGULATOR 有权
标题翻译：用于多相电压调节器的间歇二极管制动系统和方法
公开(公告)号：US20110241640A1
公开(公告)日：2011-10-06
申请号：US13047378
申请日：2011-03-14
申请人： Weihong Qiu , Chun Cheung , Faisal Ahmad
发明人： Weihong Qiu , Chun Cheung , Faisal Ahmad
IPC分类号： G05F1/618
CPC分类号： H02M3/1584
摘要： A method of operating a regulator controller IC for performing intermittent diode braking for controlling a multiple phase voltage regulator. The method includes receiving at least one signal for detecting repetitive load transients, determining a rate of the repetitive load transients, generating diode braking control signals, each for applying diode braking to a corresponding one of multiple phases for at least one load transient when the repetitive load transients are below a first rate, and controlling the diode braking control signals to drop application of diode braking of at least one phase for at least one load transient when the repetitive load transients are at least the first rate. The method may include rotating the application of diode braking among the phases during successive applications of diode braking. The method may include dropping an increased number of phases for diode braking as the rate of repetitive load transients is increased.
摘要翻译：一种用于执行用于控制多相电压调节器的间歇二极管制动的调节器控制器IC的方法。该方法包括接收至少一个用于检测重复负载瞬变的信号，确定重复负载瞬变的速率，产生二极管制动控制信号，每个用于将二极管制动施加到至少一个负载瞬变的相应的一个相，当重复负载瞬变至少为第一速率时，负载瞬变低于第一速率，并且控制二极管制动控制信号以降低至少一个相位的二极管制动的至少一个负载瞬变的应用。该方法可以包括在二极管制动的连续应用期间在相间旋转二极管制动的应用。该方法可以包括当重复负载瞬变的速率增加时，减少用于二极管制动的增加的相位数。

3. 发明授权

US08233299B2 Dynamic phase timing control for multiple regulators or phases 有权
标题翻译：用于多个调节器或相的动态相位定时控制
公开(公告)号：US08233299B2
公开(公告)日：2012-07-31
申请号：US12650772
申请日：2009-12-31
申请人： Faisal Ahmad , Weihong Qiu , Nattorn Pongratananukul
发明人： Faisal Ahmad , Weihong Qiu , Nattorn Pongratananukul
IPC分类号： H02J1/10
CPC分类号： H02M3/1584 , H02M3/33561 , H02M2003/1586
摘要： A drive control circuit generates switching drive signals for a single phase of a multiphase voltage regulator. A driver circuitry generates the switching drive signals for the voltage regulator responsive to a clock signal. A clock circuitry generates the clock signal responsive to a monitored external clock signal. A phase number detector determines a number of active phases in the multiphase voltage regulator in real time responsive to an indicator on a phase number input monitored by the phase detector.
摘要翻译：驱动控制电路产生用于多相电压调节器的单相的开关驱动信号。驱动器电路根据时钟信号产生用于电压调节器的开关驱动信号。时钟电路响应于所监视的外部时钟信号而产生时钟信号。相位检测器响应于由相位检测器监控的相位输入上的指示器实时地实时地确定多相电压调节器中的有效相位数。

4. 发明申请

US20110133716A1 CONTROLLER AND DRIVER COMMUNICATION FOR SWITCHING REGULATORS 有权
标题翻译：用于切换调节器的控制器和驱动器通信
公开(公告)号：US20110133716A1
公开(公告)日：2011-06-09
申请号：US13025453
申请日：2011-02-11
申请人： Chun Cheung , Weihong Qiu , Robert Isham
发明人： Chun Cheung , Weihong Qiu , Robert Isham
IPC分类号： G05F1/618
CPC分类号： H02M3/1584 , H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： Pulse width modulation (PWM) controllers and output stage driver circuits and related methods of communicating switching regulator mode information. The controller includes circuitry that recognizes intervals when the load driven by the regulator is in a low power mode. Responsive to recognizing the low power mode, the controller generates a PWM mode signal having at least three (3) different levels including at least one intermediate level that is coupled to at least one driver. Based on the PWM mode signal, the regulator is switched into a power saving low power operational mode.
摘要翻译：脉冲宽度调制（PWM）控制器和输出级驱动电路以及相关的交流调节器模式信息的方法。控制器包括当由调节器驱动的负载处于低功率模式时识别间隔的电路。响应于识别低功率模式，控制器产生具有至少三（3）个不同电平的PWM模式信号，包括耦合到至少一个驱动器的至少一个中间电平。基于PWM模式信号，调节器切换到省电低功耗工作模式。

5. 发明申请

US20100283523A1 CONTROLLER AND DRIVER COMMUNICATION FOR SWITCHING REGULATORS 有权
标题翻译：用于切换调节器的控制器和驱动器通信
公开(公告)号：US20100283523A1
公开(公告)日：2010-11-11
申请号：US12840466
申请日：2010-07-21
申请人： Chun Cheung , Weihong Qiu , Robert Isham
发明人： Chun Cheung , Weihong Qiu , Robert Isham
IPC分类号： H03K5/02
CPC分类号： H02M3/1584 , H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： Pulse width modulation (PWM) controllers and output stage driver circuits and related methods of communicating switching regulator mode information. The controller includes circuitry that recognizes intervals when the load driven by the regulator is in a low power mode. Responsive to recognizing the low power mode, the controller generates a PWM mode signal having at least three (3) different levels including at least one intermediate level that is coupled to at least one driver. Based on the PWM mode signal, the regulator is switched into a power saving low power operational mode.
摘要翻译：脉冲宽度调制（PWM）控制器和输出级驱动电路以及相关的交流调节器模式信息的方法。控制器包括当由调节器驱动的负载处于低功率模式时识别间隔的电路。响应于识别低功率模式，控制器产生具有至少三（3）个不同电平的PWM模式信号，包括耦合到至少一个驱动器的至少一个中间电平。基于PWM模式信号，调节器切换到省电低功耗工作模式。

6. 发明授权

US08085017B2 Pulse adding scheme for smooth phase dropping at light load conditions for multiphase voltage regulators 有权
标题翻译：用于多相稳压器在轻负载条件下平滑相位降低的脉冲加法方案
公开(公告)号：US08085017B2
公开(公告)日：2011-12-27
申请号：US12873102
申请日：2010-08-31
申请人： Weihong Qiu , Robert H. Isham , Chun Cheung
发明人： Weihong Qiu , Robert H. Isham , Chun Cheung
IPC分类号： G05F1/595
CPC分类号： H02M3/1584 , H02M2001/0032 , H02M2001/0041 , H02M2003/1586 , Y02B70/16
摘要： A pulse control system for a multiphase regulator including an error amplifier, a multiphase generator, and an adaptive controller. The error amplifier provides an error signal indicative of output voltage error. The multiphase generator develops modulation pulses for phases based on the error signal. The adaptive controller is responsive to a load indication signal and redirects at least one modulation pulse from a first of phase to a second phase. The load indication signal may be received from a microprocessor indicating a low power mode. The adaptive controller provides a smooth and efficient transition to low load conditions by dropping operation of one or more phases and redirecting modulation pulses to the remaining one or more phases, and reduced phases improve power efficiency for the low load conditions.
摘要翻译：一种用于多相调节器的脉冲控制系统，包括误差放大器，多相发生器和自适应控制器。误差放大器提供指示输出电压误差的误差信号。多相发生器根据误差信号产生相位调制脉冲。自适应控制器响应于负载指示信号并将至少一个调制脉冲从第一相重定向到第二相。可以从指示低功率模式的微处理器接收负载指示信号。自适应控制器通过丢弃一个或多个相的操作并将调制脉冲重定向到剩余的一个或多个相位来提供对低负载条件的平滑和有效的转换，并且降低的相位提高了低负载条件下的功率效率。

7. 发明申请

US20100320977A1 PULSE ADDING SCHEME FOR SMOOTH PHASE DROPPING AT LIGHT LOAD CONDITIONS FOR MULTIPHASE VOLTAGE REGULATORS 有权
标题翻译：用于多相电压调节器的轻负载条件下的平滑相位抖动的脉冲增加方案
公开(公告)号：US20100320977A1
公开(公告)日：2010-12-23
申请号：US12873102
申请日：2010-08-31
申请人： Weihong Qiu , Robert H. Isham , Chun Cheung
发明人： Weihong Qiu , Robert H. Isham , Chun Cheung
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M2001/0032 , H02M2001/0041 , H02M2003/1586 , Y02B70/16
摘要： A pulse control system for a multiphase regulator including an error amplifier, a multiphase generator, and an adaptive controller. The error amplifier provides an error signal indicative of output voltage error. The multiphase generator develops modulation pulses for phases based on the error signal. The adaptive controller is responsive to a load indication signal and redirects at least one modulation pulse from a first of phase to a second phase. The load indication signal may be received from a microprocessor indicating a low power mode. The adaptive controller provides a smooth and efficient transition to low load conditions by dropping operation of one or more phases and redirecting modulation pulses to the remaining one or more phases, and reduced phases improve power efficiency for the low load conditions.
摘要翻译：一种用于多相调节器的脉冲控制系统，包括误差放大器，多相发生器和自适应控制器。误差放大器提供指示输出电压误差的误差信号。多相发生器根据误差信号产生相位调制脉冲。自适应控制器响应于负载指示信号并将至少一个调制脉冲从第一相重定向到第二相。可以从指示低功率模式的微处理器接收负载指示信号。自适应控制器通过丢弃一个或多个相的操作并将调制脉冲重定向到剩余的一个或多个相位来提供对低负载条件的平滑和有效的转换，并且降低的相位提高了低负载条件下的功率效率。

8. 发明授权

US07812581B2 Pulse adding scheme for smooth phase dropping at light load conditions for multiphase voltage regulators 有权
标题翻译：用于多相稳压器在轻负载条件下平滑相位降低的脉冲加法方案
公开(公告)号：US07812581B2
公开(公告)日：2010-10-12
申请号：US11954888
申请日：2007-12-12
申请人： Weihong Qiu , Robert H. Isham , Chun Cheung
发明人： Weihong Qiu , Robert H. Isham , Chun Cheung
IPC分类号： G05F1/595
CPC分类号： H02M3/1584 , H02M2001/0032 , H02M2001/0041 , H02M2003/1586 , Y02B70/16
摘要： A multiphase regulator which includes an output node developing an output voltage, a feedback circuit determining error of the output voltage and providing a compensation signal indicative thereof, at least three phase circuits coupled in parallel to the output node, and an adaptive controller. Each phase circuit includes a modulation circuit and a switch circuit. Each modulation circuit receives the compensation signal and generates pulses on a corresponding one of the pulse modulation signals. Each switch circuit is coupled to the output node and is controlled by a corresponding pulse modulation signal. The adaptive controller is responsive to a load indication signal, such as indicating a low load condition, and drops operation of at least one of the phase circuits and adds at least one pulse to a pulse modulation signal of each remaining phase circuit.
摘要翻译：多相调节器，其包括产生输出电压的输出节点，确定输出电压的误差的反馈电路，并提供指示其的补偿信号，与输出节点并联耦合的至少三相电路以及自适应控制器。每相电路包括调制电路和开关电路。每个调制电路接收补偿信号并在对应的一个脉冲调制信号上产生脉冲。每个开关电路耦合到输出节点并由对应的脉冲调制信号控制。自适应控制器响应诸如指示低负载状况的负载指示信号，并且降低至少一个相位电路的操作，并且将至少一个脉冲添加到每个剩余相位电路的脉冲调制信号。

9. 发明授权

US08344777B2 Method and apparatus for adaptively modifying a pulse width of a pulse width modulated output 有权
标题翻译：用于自适应地修改脉冲宽度调制输出的脉冲宽度的方法和装置
公开(公告)号：US08344777B2
公开(公告)日：2013-01-01
申请号：US12858181
申请日：2010-08-17
申请人： Weihong Qiu , Chun Cheung , Emil Chen
发明人： Weihong Qiu , Chun Cheung , Emil Chen
IPC分类号： H03K3/017
CPC分类号： H03K5/1565 , H03K7/08
摘要： Systems, methods, and apparatus for improving steady state operation of a pulse width modulator during transient and soft start events are described herein. An apparatus can include a phase component configured to adaptively modify a pulse width of a first pulse width modulated (PWM) output signal based on a pulse width of a PWM input signal. Further, the apparatus can include a power stage component configured to source at least one of a voltage or a current to a load based on the first PWM output signal. In one example, the phase component can be configured to linearly extend the pulse width of the first PWM output signal based on the pulse width of the PWM input signal. In another example, the phase component can be configured to adaptively modify the pulse width of the first PWM output signal based on a predetermined maximum pulse width.
摘要翻译：这里描述了用于在瞬态和软启动事件期间改善脉宽调制器的稳态操作的系统，方法和装置。装置可以包括相位分量，其被配置为基于PWM输入信号的脉冲宽度自适应地修改第一脉宽调制（PWM）输出信号的脉冲宽度。此外，该装置可以包括功率级组件，其被配置为基于第一PWM输出信号将至少一个电压或电流发送到负载。在一个示例中，相位分量可以被配置为基于PWM输入信号的脉冲宽度线性地扩展第一PWM输出信号的脉冲宽度。在另一示例中，相位分量可以被配置为基于预定的最大脉冲宽度自适应地修改第一PWM输出信号的脉冲宽度。

10. 发明授权

US08018367B2 N-bit ADC reader 有权
标题翻译： N位ADC读卡器
公开(公告)号：US08018367B2
公开(公告)日：2011-09-13
申请号：US12631998
申请日：2009-12-07
申请人： Chun Cheung , Weihong Qiu , Robert H. Isham , Mir Mahin
发明人： Chun Cheung , Weihong Qiu , Robert H. Isham , Mir Mahin
IPC分类号： H03M1/12
CPC分类号： H03M1/20 , G01R27/14
摘要： An integrated circuit has a single input pin for determining a value associated with a resistor divider. First circuitry determines a resistor ratio of the resistor divider through the single input pin. A first register stores a first group of bits representing the resistor ratio. The first group of bits represents the least significant bits of the value. Second circuitry determines an equivalent resistance of the resistor divider through the single input pin. A second register stores a second group of bits representing the equivalent resistance.
摘要翻译：集成电路具有用于确定与电阻分压器相关联的值的单个输入引脚。第一个电路通过单个输入引脚确定电阻分压器的电阻比。第一寄存器存储表示电阻器比率的第一组位。第一组位表示该值的最低有效位。第二个电路通过单个输入引脚确定电阻分压器的等效电阻。第二寄存器存储表示等效电阻的第二组位。

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