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1. 发明授权

US08896280B2 Switching regulator with increased light load efficiency 有权
标题翻译：开关稳压器具有增加的轻负载效率
公开(公告)号：US08896280B2
公开(公告)日：2014-11-25
申请号：US13194314
申请日：2011-07-29
申请人： Benjamim Tang , Amir Babazadeh , Giuseppe Bernacchia , Kenneth A. Ostrom
发明人： Benjamim Tang , Amir Babazadeh , Giuseppe Bernacchia , Kenneth A. Ostrom
IPC分类号： G05F1/00 , H02M3/158 , H02M1/00
CPC分类号： H02M3/158 , H02M3/1584 , H02M2001/0032 , Y02B70/16
摘要： A switching regulator includes a multiphase converter which includes a plurality of main phases configured to covert a power supply voltage to a lower voltage for application to an electronic device at different load conditions. The switching regulator also includes an auxiliary phase configured to operate in a pulse frequency modulation mode during a light load condition so that power is supplied to the electronic device by at least the auxiliary phase during the light load condition.
摘要翻译：开关调节器包括多相转换器，其包括多个主相，其配置为将电源电压转换为较低的电压，以在不同的负载条件下应用于电子设备。开关调节器还包括配置为在轻负载状态期间以脉冲频率调制模式操作的辅助相位，使得在轻负载状态期间至少辅助相位向电子设备供电。

2. 发明授权

US09285399B2 Switching regulator cycle-by-cycle current estimation 有权
标题翻译：开关稳压器逐周期电流估计
公开(公告)号：US09285399B2
公开(公告)日：2016-03-15
申请号：US13537827
申请日：2012-06-29
申请人： Amir Babazadeh , Benjamim Tang , Giuseppe Bernacchia
发明人： Amir Babazadeh , Benjamim Tang , Giuseppe Bernacchia
IPC分类号： G05F1/10 , G01R19/00 , H02M3/156 , H02M3/158 , H02M1/00
CPC分类号： G01R19/0092 , H02M3/156 , H02M3/1584 , H02M2001/0009 , H02M2003/1566
摘要： A switching regulator includes an output phase having a high-side transistor and a low-side transistor operable to switch on and off at different periods responsive to a pulse width modulation (PWM) signal applied to the output phase, each cycle of the PWM signal having an on-portion and an off-portion. The switching regulator further includes a current sense circuit operable to sense the current of the low-side transistor, an analog-to-digital converter operable to sample the sensed low-side transistor current during the off-portion for each PWM cycle and a current estimator operable to estimate a cycle average current for the present PWM cycle based on the low-side transistor current sampled during the off-portion for the immediately preceding PWM cycle and a pulse width estimate for the on-portion for the present PWM cycle.
摘要翻译：开关调节器包括具有高侧晶体管和低侧晶体管的输出相位，可操作以响应于施加到输出相位的脉冲宽度调制（PWM）信号在不同周期接通和关断PWM信号的每个周期具有一部分和一部分。开关调节器还包括可感测低侧晶体管的电流的电流检测电路，可操作以在每个PWM周期的截止部分期间对感测到的低侧晶体管电流进行采样的模数转换器和电流估计器，其可操作以基于在前一个PWM周期的截止部分期间采样的低侧晶体管电流以及用于当前PWM周期的导通部分的脉冲宽度估计来估计当前PWM周期的周期平均电流。

3. 发明授权

US09240721B2 Multiphase digital current mode controller with dynamic current allocation 有权
标题翻译：具有动态电流分配功能的多相数字电流模式控制器
公开(公告)号：US09240721B2
公开(公告)日：2016-01-19
申请号：US13547282
申请日：2012-07-12
申请人： Amir Babazadeh , Benjamim Tang , Giuseppe Bernacchia , Kenneth Ostrom
发明人： Amir Babazadeh , Benjamim Tang , Giuseppe Bernacchia , Kenneth Ostrom
IPC分类号： H02M3/158 , H02M1/00 , H02M3/156
CPC分类号： H02M3/1584 , H02M2001/0032 , H02M2003/1566 , Y02B70/16
摘要： A multiphase switching regulator includes a power stage with at least a first phase and a second phase for supplying power to a load through inductors coupling the phases to the load. The multiphase switching regulator is operated by switching the first phase at a higher switching frequency than the second phase via pulse width modulation (PWM) signals provided to the phases. A phase-specific target current is generated for each phase at the switching frequency for that phase based on the difference between an output voltage of the power stage and a reference voltage. The current in the inductors coupling the phases to the load is sensed, and a duty cycle of the PWM signal provided to each phase is adjusted based on the phase-specific target current and sensed inductor current for that phase.
摘要翻译：多相开关调节器包括具有至少第一相和第二相的功率级，用于通过将相耦合到负载的电感器向负载供电。通过经由提供给相的脉宽调制（PWM）信号，以比第二相更高的开关频率切换第一相来操作多相开关稳压器。基于功率级的输出电压和参考电压之间的差异，针对该相的开关频率的每相产生相位特定的目标电流。感测将相位耦合到负载的电感器中的电流，并且基于该相位的相位特定目标电流和检测到的电感器电流来调整提供给每个相位的PWM信号的占空比。

4. 发明申请

US20140015500A1 MULTIPHASE DIGITAL CURRENT MODE CONTROLLER WITH DYNAMIC CURRENT ALLOCATION 有权
标题翻译：具有动态电流分配的多相数字电流模式控制器
公开(公告)号：US20140015500A1
公开(公告)日：2014-01-16
申请号：US13547282
申请日：2012-07-12
申请人： Amir Babazadeh , Benjamim Tang , Giuseppe Bernacchia , Kenneth Ostrom
发明人： Amir Babazadeh , Benjamim Tang , Giuseppe Bernacchia , Kenneth Ostrom
IPC分类号： G05F1/565
CPC分类号： H02M3/1584 , H02M2001/0032 , H02M2003/1566 , Y02B70/16
摘要： A multiphase switching regulator includes a power stage with at least a first phase and a second phase for supplying power to a load through inductors coupling the phases to the load. The multiphase switching regulator is operated by switching the first phase at a higher switching frequency than the second phase via pulse width modulation (PWM) signals provided to the phases. A phase-specific target current is generated for each phase at the switching frequency for that phase based on the difference between an output voltage of the power stage and a reference voltage. The current in the inductors coupling the phases to the load is sensed, and a duty cycle of the PWM signal provided to each phase is adjusted based on the phase-specific target current and sensed inductor current for that phase.
摘要翻译：多相开关调节器包括具有至少第一相和第二相的功率级，用于通过将相耦合到负载的电感器向负载供电。通过经由提供给相的脉宽调制（PWM）信号，以比第二相更高的开关频率切换第一相来操作多相开关稳压器。基于功率级的输出电压和参考电压之间的差异，针对该相的开关频率的每相产生相位特定的目标电流。感测将相位耦合到负载的电感器中的电流，并且基于该相位的相位特定目标电流和检测到的电感器电流来调整提供给每个相位的PWM信号的占空比。

5. 发明申请

US20140002037A1 Switching Regulator Cycle-by-Cycle Current Estimation 有权
标题翻译：开关稳压器逐周期电流估计
公开(公告)号：US20140002037A1
公开(公告)日：2014-01-02
申请号：US13537827
申请日：2012-06-29
申请人： Amir Babazadeh , Benjamim Tang , Giuseppe Bernacchia
发明人： Amir Babazadeh , Benjamim Tang , Giuseppe Bernacchia
IPC分类号： G05F1/46 , G01R19/00
CPC分类号： G01R19/0092 , H02M3/156 , H02M3/1584 , H02M2001/0009 , H02M2003/1566
摘要： A switching regulator includes an output phase having a high-side transistor and a low-side transistor operable to switch on and off at different periods responsive to a pulse width modulation (PWM) signal applied to the output phase, each cycle of the PWM signal having an on-portion and an off-portion. The switching regulator further includes a current sense circuit operable to sense the current of the low-side transistor, an analog-to-digital converter operable to sample the sensed low-side transistor current during the off-portion for each PWM cycle and a current estimator operable to estimate a cycle average current for the present PWM cycle based on the low-side transistor current sampled during the off-portion for the immediately preceding PWM cycle and a pulse width estimate for the on-portion for the present PWM cycle.
摘要翻译：开关调节器包括具有高侧晶体管和低侧晶体管的输出相位，可操作以响应于施加到输出相位的脉冲宽度调制（PWM）信号在不同周期接通和关断PWM信号的每个周期具有一部分和一部分。开关调节器还包括可感测低侧晶体管的电流的电流检测电路，可操作以在每个PWM周期的截止部分期间对感测到的低侧晶体管电流进行采样的模数转换器和电流估计器，其可操作以基于在前一个PWM周期的截止部分期间采样的低侧晶体管电流以及用于当前PWM周期的导通部分的脉冲宽度估计来估计当前PWM周期的周期平均电流。

6. 发明申请

US20130027009A1 Switching Regulator with Increased Light Load Efficiency 有权
标题翻译：开关稳压器具有增加的轻负载效率
公开(公告)号：US20130027009A1
公开(公告)日：2013-01-31
申请号：US13194314
申请日：2011-07-29
申请人： Benjamim Tang , Amir Babazadeh , Giuseppe Bernacchia , Kenneth A. Ostrom
发明人： Benjamim Tang , Amir Babazadeh , Giuseppe Bernacchia , Kenneth A. Ostrom
IPC分类号： G05F1/00
CPC分类号： H02M3/158 , H02M3/1584 , H02M2001/0032 , Y02B70/16
摘要： A switching regulator includes a multiphase converter which includes a plurality of main phases configured to covert a power supply voltage to a lower voltage for application to an electronic device at different load conditions. The switching regulator also includes an auxiliary phase configured to operate in a pulse frequency modulation mode during a light load condition so that power is supplied to the electronic device by at least the auxiliary phase during the light load condition.
摘要翻译：开关调节器包括多相转换器，其包括多个主相，其配置为将电源电压转换为较低的电压，以在不同的负载条件下应用于电子设备。开关调节器还包括配置为在轻负载状态期间以脉冲频率调制模式操作的辅助相位，使得在轻负载状态期间至少辅助相位向电子设备供电。

7. 发明申请

US20140002044A1 Switching Regulator Output Capacitor Current Estimation 有权
标题翻译：开关稳压器输出电容电流估计
公开(公告)号：US20140002044A1
公开(公告)日：2014-01-02
申请号：US13537856
申请日：2012-06-29
申请人： Amir Babazadeh , Benjamim Tang , Kenneth Ostrom
发明人： Amir Babazadeh , Benjamim Tang , Kenneth Ostrom
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , H02M3/1584 , H02M2001/0009 , Y02B70/1466
摘要： A switching regulator includes a controller and a power stage for coupling to a load through an inductor and a capacitor. The a controller is operable to control operation of the power stage via a pulse width modulation (PWM) signal generated based on a difference between a reference voltage and the load voltage and sample the inductor current at a lower rate than the load voltage. The controller is further operable to estimate the capacitor current based on the sampled load voltage, generate an offset to the reference voltage based on the sampled inductor current and the estimated capacitor current and adjust the PWM signal applied to the power stage based on the offset. The switching regulator can be single-phase or multi-phase.
摘要翻译：开关调节器包括控制器和用于通过电感器和电容器耦合到负载的功率级。控制器可操作以经由基于参考电压和负载电压之间的差产生的脉冲宽度调制（PWM）信号来控制功率级的操作，并以比负载电压更低的速率对电感器电流进行采样。控制器进一步可操作以基于采样的负载电压来估计电容器电流，基于采样的电感器电流和估计的电容器电流产生对参考电压的偏移，并且基于偏移来调整施加到功率级的PWM信号。开关稳压器可以是单相或多相。

8. 发明申请

US20140002932A1 Switching Regulator with Negative Current Limit Protection 有权
标题翻译：具有负极限保护的开关稳压器
公开(公告)号：US20140002932A1
公开(公告)日：2014-01-02
申请号：US13537907
申请日：2012-06-29
申请人： Benjamim Tang , Amir Babazadeh
发明人： Benjamim Tang , Amir Babazadeh
IPC分类号： H02H9/02
CPC分类号： H02M1/32 , H02M3/1584
摘要： A switching regulator includes a power stage for coupling to a load through an inductor. The power stage switches so that the power stage sources positive current to the load through a first transistor of the power stage during some periods and sinks negative current from the load through a second transistor of the power stage during other periods. The switching regulator further includes a protection circuit operable to force the second transistor into an off-state state responsive to the negative current flowing through the inductor exceeding a predetermined negative threshold.
摘要翻译：开关调节器包括用于通过电感器耦合到负载的功率级。功率级开关使得功率级在一段时间内通过功率级的第一晶体管向负载提供正电流，并且在其它时段期间通过功率级的第二晶体管从负载吸收负电流。开关调节器还包括保护电路，其可操作以响应于流过电感器的负电流超过预定的负阈值而迫使第二晶体管进入截止状态。

9. 发明授权

US09110480B2 Voltage ramp circuitry and voltage ramp methods for voltage regulators 有权
标题翻译：用于电压调节器的电压斜坡电路和电压斜坡方法
公开(公告)号：US09110480B2
公开(公告)日：2015-08-18
申请号：US13155282
申请日：2011-06-07
申请人： Amir Babazadeh , Benjamim Tang , Jinghong Guo , Scott Southwell , Tim Ng , Richard Pierson , Nick Steffen
发明人： Amir Babazadeh , Benjamim Tang , Jinghong Guo , Scott Southwell , Tim Ng , Richard Pierson , Nick Steffen
IPC分类号： G05F1/00 , G05F3/02 , H02M3/156 , H02M1/00
CPC分类号： G05F3/02 , H02M3/156 , H02M2001/0025
摘要： Methods and apparatus for power regulation according to various aspects of the present invention may operate in conjunction with producing a voltage ramp starting at a first voltage and ending at a second voltage and compensating the voltage ramp according to a compensation parameter. The compensation parameter may be adapted to compensate for a circuit parameter. A voltage may then be generated according to the compensated voltage ramp.
摘要翻译：根据本发明的各个方面的用于功率调节的方法和装置可以与从第一电压开始并以第二电压结束并产生根据补偿参数补偿电压斜坡的电压斜坡一起工作。补偿参数可以适于补偿电路参数。然后可以根据补偿的电压斜坡产生电压。

10. 发明授权

US08901908B2 Methods and apparatus for DC-DC conversion using digitally controlled adaptive pulse frequency modulation 有权
标题翻译：使用数字自适应脉冲频率调制的DC-DC转换的方法和装置
公开(公告)号：US08901908B2
公开(公告)日：2014-12-02
申请号：US13155295
申请日：2011-06-07
申请人： Benjamim Tang , Amir Babazadeh
发明人： Benjamim Tang , Amir Babazadeh
IPC分类号： G05F1/46 , H02M3/157
CPC分类号： H02M3/157
摘要： A method and apparatus for regulating voltage comprising calculating a first PFM on time and a second PFM on time and selecting one the PFM on times according to a selection criteria. Then activating and deactivating at least one switch according to the selected PFM on time.
摘要翻译：一种用于调节电压的方法和装置，包括按时计算第一PFM和第二PFM，并根据选择标准选择一次PFM。然后根据所选的PFM及时启动和停用至少一个开关。

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