公开(公告)号：US06628110B2

公开(公告)日：2003-09-30

申请号：US10197237

申请日：2002-07-15

Applicant: Alessandro Zafarana ,  Claudia Castelli

Inventor： Alessandro Zafarana ,  Claudia Castelli

IPC: G05F140

CPC classification number: H02M3/1584 ,  H02M2001/0009

Abstract: A voltage/current controller device, particularly for interleaving switching regulators, comprises: a DC/DC converter having a plurality of modules, with each module including a drive transistor pair connected in series between first and second supply voltage references, a current sensor connected to one transistor in the pair, and a current read circuit connected to the sensor. Advantageously, the read circuit comprises a transconductance amplifier connected across the current sensor to sense a voltage signal related to a load current being applied to each module, the transconductance amplifier reading the voltage signal with the transistor in the conducting state.

公开(公告)号：US06346801B1

公开(公告)日：2002-02-12

申请号：US09664926

申请日：2000-09-19

Applicant: Alessandro Zafarana ,  Simone Christian Bassani

Inventor： Alessandro Zafarana ,  Simone Christian Bassani

IPC: G05F144

CPC classification number: H02M3/157

Abstract: A method and system for controlling a DC-DC converter compares the output voltage with a low threshold and a high threshold, and injects a certain minimum electric charge into an inductor of the converter during a charge period corresponding to a power switch. The beginning of a charge period is commanded each time the output voltage drops below the low threshold, and the electric charge transferred during a charge period is progressively increased until the output voltage rises to the high threshold. The output voltage starts from the low threshold upon executing the charge period. The duration of the time interval between two consecutive charge periods is measured and stored. The current time interval is compared with the previously detected and stored time interval. The output voltage is decreasing to the minimum electric charge whenever an increment of the time interval between two consecutive charge periods is detected.

Abstract translation: 用于控制DC-DC转换器的方法和系统将输出电压与低阈值和高阈值进行比较，并且在对应于电源开关的充电周期期间将一定的最小电荷注入到转换器的电感器中。 每当输出电压下降到低阈值以下时，指令充电期间的开始，并且在充电期间内传输的电荷逐渐增加，直到输出电压上升到高阈值。 执行充电期间，输出电压从低阈值开始。 测量并存储两个连续充电周期之间的时间间隔的持续时间。 将当前时间间隔与先前检测和存储的时间间隔进行比较。 每当检测到两个连续的充电周期之间的时间间隔的增加时，输出电压就降至最小电荷。

公开(公告)号：US08878503B2

公开(公告)日：2014-11-04

申请号：US13238436

申请日：2011-09-21

Applicant: Alessandro Zafarana ,  Osvaldo Enrico Zambetti

Inventor： Alessandro Zafarana ,  Osvaldo Enrico Zambetti

IPC: H02M3/156 ,  H02M1/00

CPC classification number: H02M3/156 ,  H02M2001/0022 ,  H02M2001/0025

Abstract: The voltage regulators are capable of limiting undershoots of the output voltage without having a similar effect on overshoots because of the presence of a current cancellation network, input with the reference voltage and coupled to the second input of the error amplifier. This current cancellation network is adapted to inject into the second input a unidirectional compensation current of the first and second currents injected by the first and second feedback networks, respectively, the compensation current being determined by time variations of the difference between a replica of the output regulated voltage and the reference voltage and/or by time variations of the reference voltage.

Abstract translation: 由于存在电流消除网络，输入参考电压并耦合到误差放大器的第二输入端，电压调节器能够限制输出电压的下冲，而不会对过冲产生类似的影响。 该电流消除网络适于将分别由第一和第二反馈网络注入的第一和第二电流的单向补偿电流注入到第二输入中，补偿电流由输出的副本之间的差的时间变化确定 参考电压和/或参考电压的时间变化。

公开(公告)号：US08368371B2

公开(公告)日：2013-02-05

申请号：US12797967

申请日：2010-06-10

Applicant: Alessandro Zafarana ,  Osvaldo Zambetti

Inventor： Alessandro Zafarana ,  Osvaldo Zambetti

IPC: G05F1/00

CPC classification number: H02M3/1584

Abstract: A method is provided for controlling a converter of the multiphase interleaving type. According to the method, there is detected when a change of a load applied to an output terminal of the converter occurs. When detected, all of the phases of the converter are simultaneously turned off by the generation of suitable PWM driving signals. The PWM driving signals are controlled so as to force the turn-on of the phases at the same time and to zero a time phase shift of driving of the interleaving type of the PWM driving signals. The interleaving of the driving time phase shift is recovered and a normal operation of the converter is restarted. A controller for controlling a converter of the multiphase interleaving type is also provided.

Abstract translation: 提供了一种用于控制多相交错类型的转换器的方法。 根据该方法，检测何时发生施加到转换器的输出端的负载变化。 当检测到转换器的所有相位通过产生合适的PWM驱动信号同时被关断。 控制PWM驱动信号，以便同时强制相的导通，并使驱动交织型PWM驱动信号的时间相移为零。 恢复驱动时间相移的交错，并重新开始转换器的正常操作。 还提供了一种用于控制多相交错类型的转换器的控制器。

公开(公告)号：US08044645B2

公开(公告)日：2011-10-25

申请号：US11911486

申请日：2005-04-12

Applicant: Osvaldo Enrico Zambetti ,  Alessandro Zafarana

Inventor： Osvaldo Enrico Zambetti ,  Alessandro Zafarana

IPC: G05F1/59

CPC classification number: H02M3/1584 ,  H02M2001/0009

Abstract: A multiphase voltage regulator provides a voltage to an output terminal. The voltage regulator includes N parallel switches providing respective current phases that are added together to generate a total current for a general load coupled to the output terminal. The voltage regulator also includes N inductive circuits. Each inductive circuit is between an output node of a respective switch and the output terminal. A sense circuit adds the voltages in each of the output nodes of the N switches. An amplifier circuit has an input receiving the added voltage, and outputs a current proportional to the total current. A controller with two pins reads the total current. The two pins are connected to the inputs of the amplifier.

Abstract translation: 多相电压调节器向输出端子提供电压。 电压调节器包括N个并联开关，其提供各自的电流相位，这些相位相加在一起以产生耦合到输出端子的一般负载的总电流。 电压调节器还包括N个电感电路。 每个感应电路位于相应开关的输出节点和输出端之间。 感测电路在N个开关的每个输出节点中增加电压。 放大器电路具有接收所加电压的输入，并且输出与总电流成比例的电流。 具有两个引脚的控制器读取总电流。 两个引脚连接到放大器的输入端。

公开(公告)号：US20110205767A1

公开(公告)日：2011-08-25

申请号：US13089802

申请日：2011-04-19

Applicant: Alessandro Zafarana ,  Osvaldo Zambetti

Inventor： Alessandro Zafarana ,  Osvaldo Zambetti

IPC: H02M1/36

CPC classification number: H02M3/156 ,  H02M3/1584

Abstract: A method is provided for controlling a converter of the multiphase interleaving type. According to the method, there is detected when a change of the load applied to an output terminal of the converter occurs. All the phases of the converter are simultaneously turned off, and a driving interleaving phase shift is recovered so as to restart a normal operation of the converter. A controller for carrying out such a method is also provided.

Abstract translation: 提供了一种用于控制多相交错类型的转换器的方法。 根据该方法，检测何时发生施加到转换器的输出端子的负载变化。 转换器的所有相同时关断，并且恢复驱动交错相移，以重新开始转换器的正常操作。 还提供了一种用于执行这种方法的控制器。

公开(公告)号：US07956590B2

公开(公告)日：2011-06-07

申请号：US11680581

申请日：2007-02-28

Applicant: Alessandro Zafarana ,  Osvaldo Zambetti

Inventor： Alessandro Zafarana ,  Osvaldo Zambetti

IPC: G05F1/00

CPC classification number: H02M3/156 ,  H02M3/1584

Abstract: A method is provided for controlling a converter of the multiphase interleaving type. According to the method, there is detected when a change of the load applied to an output terminal of the converter occurs. All the phases of the converter are simultaneously turned off, and a driving interleaving phase shift is recovered so as to restart a normal operation of the converter. A controller for carrying out such a method is also provided.

Abstract translation: 提供了一种用于控制多相交错类型的转换器的方法。 根据该方法，检测何时发生施加到转换器的输出端子的负载变化。 转换器的所有相同时关断，并且恢复驱动交错相移，以重新开始转换器的正常操作。 还提供了一种用于执行这种方法的控制器。

公开(公告)号：US07486054B2

公开(公告)日：2009-02-03

申请号：US10957530

申请日：2004-09-30

Applicant: Alessandro Zafarana ,  Cristian Porta ,  Ernesto Manuel Cantone

Inventor： Alessandro Zafarana ,  Cristian Porta ,  Ernesto Manuel Cantone

IPC: G05F1/00

CPC classification number: H02M3/1584 ,  H02M2001/0009

Abstract: A method for generating a reading signal of a sense element in at least a phase of a multiphase controller controlled by means of PWM control signals having a preset period and a duty cycle varying according to the load current and voltage of said controller, the reading signal being a digital signal having a first logic value during a reading period and a second logic value at the end of the reading period and showing a periodical trend which has a half cycle. The method provides that the value of said half cycle is so set that the reading period ends in a different instant from the switching instants of external power transistors comprised in the driving circuits of the controller phases not being read.

Abstract translation: 一种用于产生在多相控制器的至少相位中的感测元件的读取信号的方法，所述多相控制器通过具有根据所述控制器的负载电流和电压而变化的预设周期和占空比的PWM控制信号来控制，所述读取信号 是在读取期间具有第一逻辑值的数字信号和读取周期结束时的第二逻辑值，并且显示具有半个周期的周期性趋势。 该方法规定，所述半周期的值被设置为使得读取周期与不包括在未被读取的控制器相位的驱动电路中的外部功率晶体管的切换时刻不同的时刻结束。

公开(公告)号：US07221135B2

公开(公告)日：2007-05-22

申请号：US11111489

申请日：2005-04-20

Applicant: Alessandro Zafarana ,  Dario Zambotti ,  Stefano Saggini

Inventor： Alessandro Zafarana ,  Dario Zambotti ,  Stefano Saggini

IPC: G05F1/10 ,  G05F1/40

CPC classification number: H02M3/156 ,  H02M2001/0009

Abstract: A method regulates the time constant matching of a DC/DC converter phase, further to a variation of a load applied to an output of said phase. Such phase being associated with a coil network, with a series RL circuit and a reading network 10, with a series RC circuit connected in parallel to the coil network. The method includes an acquisition step, suitable to acquire the trend of a voltage detected across the capacitance CD of the reading network 10, transforming it into a current trend, a detection step suitable to identify a variation above a certain threshold value of said current trend, an identification step, enabled by said detection step, suitable to determine a slope of said current trend and a regulation step suitable to adapt the value of said resistance RD based on said slope determined by said identification step.

Abstract translation: 一种方法调节DC / DC转换器相位的时间常数匹配，进一步调整为施加到所述相位的输出的负载的变化。 这种相位与线圈网络相关联，具有串联RL电路和读取网络10，其中串联RC电路并联连接到线圈网络。 该方法包括采集步骤，适于获取在读取网络10的电容C D D上检测的电压的趋势，将其变换成当前趋势，适合于识别上述变化的检测步骤 所述当前趋势的某个阈值，由所述检测步骤启动的适合于确定所述当前趋势的斜率的识别步骤和适于基于所述电阻R D D的值适应的调节步骤 在由所述识别步骤确定的所述斜率上。

公开(公告)号：US06583608B2

公开(公告)日：2003-06-24

申请号：US09955735

申请日：2001-09-18

Applicant: Alessandro Zafarana ,  Claudia Castelli

Inventor： Alessandro Zafarana ,  Claudia Castelli

IPC: G05F140

CPC classification number: H02M3/1584 ,  H02M2001/0009

Abstract: A voltage/current controller device, particularly for interleaving switching regulators, comprises: a DC/DC converter having a plurality of modules, with each module including a drive transistor pair connected in series between first and second supply voltage references, a current sensor connected to one transistor in the pair, and a current read circuit connected to the sensor. Advantageously, the read circuit comprises a transconductance amplifier connected across the current sensor to sense a voltage signal related to a load current being applied to each module, the transconductance amplifier reading the voltage signal with the transistor in the conducting state.