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1. 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。

2. 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。

3. 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。

4. 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。

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

US20100244803A1 Switching Converter with Plural Converter Stages having Calibrated Current Uptake 有权
标题翻译：具有校准电流吸收的多个转换器级的开关转换器
公开(公告)号：US20100244803A1
公开(公告)日：2010-09-30
申请号：US12815268
申请日：2010-06-14
申请人： Giuseppe Bernacchia , Riccardo Pittassi
发明人： Giuseppe Bernacchia , Riccardo Pittassi
IPC分类号： G05F1/613
CPC分类号： H02M3/1584
摘要： A switching converter according includes a control arrangement to furnish a control signal dependent on the output voltage, as well as a first and at least one second converter stage. Each converter includes an inductive storage element, a ramp signal generator to furnish a signal having a ramp slope, a pulse width modulator which receives the control signal and the ramplike signal and which furnishes a pulse width modulated signal, and a driver circuit which receives the pulse width modulated signal and the input voltage and which applies the input voltage to the inductive storage element depending on the pulse width modulated signal. The ramp slope of the ramplike signal of the at least one second converter stage is adjustable. The ramp signal generator of the second converter stage receives a calibration signal which depends on the inductance of the inductive storage element of the first converter stage.
摘要翻译：一种开关转换器，包括控制装置，用于提供取决于输出电压的控制信号，以及第一和至少一个第二转换器级。每个转换器包括电感存储元件，斜坡信号发生器以提供具有斜坡斜率的信号，接收控制信号的脉宽调制器和ramplike信号并提供脉宽调制信号的驱动电路，以及接收脉冲宽度调制信号和输入电压，并根据脉宽调制信号将输入电压施加到感应存储元件。至少一个第二转换器级的ramplike信号的斜坡斜率是可调节的。第二转换器级的斜坡信号发生器接收取决于第一转换器级的感应存储元件的电感的校准信号。

8. 发明授权

US07759919B2 Switching converter with plural converter stages having calibrated current uptake 有权
标题翻译：具有校准电流摄取的多个转换器级的开关转换器
公开(公告)号：US07759919B2
公开(公告)日：2010-07-20
申请号：US11728036
申请日：2007-03-23
申请人： Giuseppe Bernacchia , Riccardo Pittassi
发明人： Giuseppe Bernacchia , Riccardo Pittassi
IPC分类号： G05F1/613
CPC分类号： H02M3/1584
摘要： A switching converter includes a control arrangement and multiple converter stages. The control arrangement generates a control signal dependent on the output voltage. Each converter stage includes an inductive storage element, a current measurement arrangement that detects a current across the inductive storage element and furnishes a current measuring signal proportional to this current, a pulse width modulator that receives the control signal and the current measuring signal and generates a PWM signal, and a driver circuit that applies the input voltage to the inductive storage element in dependence on the PWM signal. The current measurement arrangement of a second converter stage adjusts a proportionality factor between the current across the inductive storage element and the current measurement signal thereof, responsive to an adjustment signal that is dependent on a proportionality factor between a current across the inductive storage element and the current measuring signal of a first converter stage.
摘要翻译：开关转换器包括控制装置和多个转换器级。控制装置根据输出电压产生控制信号。每个转换器级包括感应存储元件，电流测量装置，其检测电感存储元件两端的电流并提供与该电流成比例的电流测量信号;脉宽调制器，其接收控制信号和电流测量信号， PWM信号以及根据PWM信号将输入电压施加到感应存储元件的驱动电路。第二转换器级的当前测量布置响应于依赖于电感存储元件和电感存储元件之间的电流之间的比例因子的调整信号来调整电感存储元件两端的电流与其电流测量信号之间的比例因子第一转换器级的电流测量信号。

9. 发明申请

US20090323375A1 Discontinuous Conduction Mode Control Circuit and Method for Synchronous Converter 有权
标题翻译：不连续导通模式控制电路和同步转换器的方法
公开(公告)号：US20090323375A1
公开(公告)日：2009-12-31
申请号：US12164954
申请日：2008-06-30
申请人： Maurizio Galvano , Giuseppe Bernacchia , Giovanni Capodivacca
发明人： Maurizio Galvano , Giuseppe Bernacchia , Giovanni Capodivacca
IPC分类号： H02M3/335
CPC分类号： H02M3/156 , H02M3/3376
摘要： Circuit and method for controlling a synchronous power converter in discontinuous conduction mode with increased efficiency is disclosed. Circuitry is provided outputting gating signals to a high side driver and a synchronous rectifier responsive to a pulse width modulated input signal, an inhibit circuit for inhibiting the gating signal to the synchronous rectifier upon detection of a zero crossing condition; a comparator receiving a measured circuit value from the synchronous converter and a reference value and outputting a zero crossing condition; and a duty cycle observer circuit for determining the average duty cycle of the pulse width modulated input signal and for varying the reference value. A method is disclosed determining if the average duty cycle in the pulse width modulated input signal is increasing in response to varying a reference value, and inhibiting a synchronous rectifier control signal when the comparator indicates a zero crossing condition.
摘要翻译：公开了用于以提高效率控制不连续导通模式的同步功率转换器的电路和方法。提供电路，其响应于脉宽调制输入信号向高侧驱动器和同步整流器输出门控信号;禁止电路，用于在检测到过零状态时禁止同步整流器的选通信号; 比较器，从同步转换器接收测量电路值和参考值，并输出过零状态; 以及用于确定脉宽调制输入信号的平均占空比并用于改变参考值的占空比观察器电路。公开了一种确定脉冲宽度调制输入信号中的平均占空比是否响应于改变参考值而增加的方法，以及当比较器指示过零状态时禁止同步整流器控制信号。

10. 发明申请

US20080024101A1 Output ripple control circuit and method for a PWM system 有权
标题翻译： PWM系统的输出纹波控制电路和方法
公开(公告)号：US20080024101A1
公开(公告)日：2008-01-31
申请号：US11493554
申请日：2006-07-27
申请人： Jian-Rong Huang , Giovanni Capodivacca , Giuseppe Bernacchia , Kuo-Lung Tseng
发明人： Jian-Rong Huang , Giovanni Capodivacca , Giuseppe Bernacchia , Kuo-Lung Tseng
IPC分类号： G05F1/00
CPC分类号： H02M1/143
摘要： An output ripple control circuit and method for a PWM system uses a hysteresis threshold to clamp the output ripple of the PWM system such that the output ripple will not vary with the dc level of the output voltage, and therefore the output ripple control may be combined into any main loop technologies.
摘要翻译：用于PWM系统的输出纹波控制电路和方法使用滞后阈值钳位PWM系统的输出纹波，使得输出纹波不会随着输出电压的直流电平而变化，因此可以组合输出纹波控制进入任何主循环技术。

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