公开(公告)号：US08179699B2

公开(公告)日：2012-05-15

申请号：US12347889

申请日：2008-12-31

申请人： Salvatore Tumminaro ,  Salvatore Giombanco ,  Alfio Pasqua ,  Claudio Adragna

发明人： Salvatore Tumminaro ,  Salvatore Giombanco ,  Alfio Pasqua ,  Claudio Adragna

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M2001/0009

摘要： An embodiment of a power-supply controller comprises a switching-control circuit, an error amplifier, and a signal generator. The switching-control circuit is operable to control a switch coupled to a primary winding of a transformer, and the error amplifier has a first input node operable to receive a feedback signal, a second input node operable to receive a comparison signal, and an output node operable to provide a control signal to the switching-control circuit. The signal generator is operable to generate either the feedback signal or the comparison signal in response to a compensation signal that is isolated from a secondary winding of the transformer and that is proportional to a load current through a conductor disposed between the secondary winding and a load.

公开(公告)号：US20110157926A1

公开(公告)日：2011-06-30

申请号：US12979214

申请日：2010-12-27

申请人： Claudio Adragna

发明人： Claudio Adragna

IPC分类号： H02M3/337

CPC分类号： H02M3/3376 ,  Y02B70/1433

摘要： A circuit for an oscillator structured to drive a control device of a switching resonant converter; the converter having a switching circuit structured to drive a resonant load provided with at least one transformer with at least a primary winding and at least a secondary winding. The control device structured to drive the switching circuit, and the converter structured to convert an input signal into an output signal, the integrated circuit includes a first circuit structured to charge and discharge a capacitor by a first current signal such that the voltage at the ends of the capacitor is between first and second reference voltages, the current signal having a second current signal indicating the output voltage of the converter; the integrated circuit including a second circuit structured to rectify a signal indicating the current circulating in the primary winding.

摘要翻译： 一种用于驱动开关谐振变换器的控制装置的振荡器电路， 所述转换器具有开关电路，其被构造为驱动具有至少一个变压器的谐振负载，所述至少一个变压器至少具有初级绕组和至少次级绕组。 所述控制装置被构造成驱动所述开关电路，并且所述转换器被构造为将输入信号转换为输出信号，所述集成电路包括被构造为通过第一电流信号对电容器进行充电和放电的第一电路，使得所述端部处的电压 所述电容器在第一和第二参考电压之间，所述电流信号具有指示所述转换器的输出电压的第二电流信号; 所述集成电路包括被构造成对指示在所述初级绕组中循环的电流的信号进行整流的第二电路。

公开(公告)号：US20100328968A1

公开(公告)日：2010-12-30

申请号：US12820549

申请日：2010-06-22

申请人： Claudio Adragna ,  Giuseppe Gattavari ,  Paolo Mattavelli ,  Enrico Orietti ,  Giorgio Spiazzi

发明人： Claudio Adragna ,  Giuseppe Gattavari ,  Paolo Mattavelli ,  Enrico Orietti ,  Giorgio Spiazzi

IPC分类号： H02M3/335

CPC分类号： H02M3/33569 ,  H02M3/335 ,  Y02B70/1433

摘要： A PWM controlled multi-phase resonant voltage converter may include a plurality of primary windings powered through respective half-bridges, and as many secondary windings connected to an output terminal of the converter and magnetically coupled to the respective primary windings. The primary or secondary windings may be connected such that a real or virtual neutral point is floating.

摘要翻译： PWM控制的多相谐振电压转换器可以包括通过相应半桥供电的多个初级绕组，以及连接到转换器的输出端子并且磁耦合到相应的初级绕组的多个次级绕组。 主或次级绕组可以连接成使得实际或虚拟中性点浮动。

公开(公告)号：US20100259954A1

公开(公告)日：2010-10-14

申请号：US12789113

申请日：2010-05-27

申请人： Christian Leone Santoro ,  Claudio Adragna ,  Aldo Vittorio Novelli

发明人： Christian Leone Santoro ,  Claudio Adragna ,  Aldo Vittorio Novelli

IPC分类号： H02M3/335 ,  G06F1/04

CPC分类号： H02M1/36 ,  H02M3/3376 ,  H02M2001/0048 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

摘要： A resonant dc-dc converter converts dc input voltage to a dc output voltage. The converter includes switching, switching driving, conversion, and disabling circuits. The switching circuit receives the input voltage and generates a square wave voltage oscillating between the input voltage and a low value, at a frequency with a duty cycle. The switching driving circuit drives the switching circuit and includes a timing circuit for setting the frequency and the duty cycle. The timing circuit sets the value of the duty cycle to about 50% when the converter operates in steady state. The conversion circuit generates the output voltage from the square wave voltage based on the frequency and the duty cycle. The disabling circuit temporarily halts the timing circuit after a power on in such a way to temporarily vary the duty cycle of the square wave voltage during a period of the square wave voltage.

摘要翻译： 谐振式dc-dc转换器将直流输入电压转换为直流输出电压。 该转换器包括开关，开关驱动，转换和禁用电路。 开关电路接收输入电压，并以占空比的频率产生在输入电压和低值之间振荡的方波电压。 开关驱动电路驱动开关电路，并且包括用于设定频率和占空比的定时电路。 当转换器工作在稳态时，定时电路将占空比的值设置为约50％。 转换电路根据频率和占空比从方波电压产生输出电压。 禁止电路在上电之后暂时停止定时电路，以便在方波电压的周期期间临时改变方波电压的占空比。

公开(公告)号：US20100259951A1

公开(公告)日：2010-10-14

申请号：US12421135

申请日：2009-04-09

申请人： Claudio Adragna ,  Silvio De Simone

发明人： Claudio Adragna ,  Silvio De Simone

IPC分类号： H02M3/335

CPC分类号： H02M3/337 ,  H02M2001/0048 ,  Y02B70/1433 ,  Y02B70/1491

摘要： A half bridge switching dc-dc converter an input dc voltage to an output dc voltage. The converter includes a switching circuit for receiving the input dc voltage and generating a periodic square wave voltage oscillating from a high value corresponding to the input dc voltage to a low value corresponding to a reference voltage. The periodic square wave voltage oscillates at a main frequency with a main duty cycle equal to about 50% when the converter operates in a steady state. The converter further includes a conversion circuit for providing the output dc voltage from the square wave voltage based on the main frequency and on the main duty cycle. The converter still further comprises a switching control circuit controlling the switching circuit for temporarily varying the main duty cycle during at least one period of the square wave after a power on of the converter.

摘要翻译： 半桥开关dc-dc转换器将输入直流电压转换为输出直流电压。 该转换器包括用于接收输入直流电压并产生从对应于输入直流电压的高值振荡到对应于参考电压的低值的周期性方波电压的开关电路。 当转换器工作在稳定状态时，周期性方波电压以主频率振荡，主占空比等于约50％。 该转换器还包括一个转换电路，用于根据主频率和主占空比从方波电压提供输出直流电压。 转换器还包括开关控制电路，控制开关电路，用于在转换器通电之后的至少一个方波周期期间暂时改变主占空比。

公开(公告)号：US20090257257A1

公开(公告)日：2009-10-15

申请号：US12100958

申请日：2008-04-10

申请人： Claudio Adragna ,  Aldo Novelli ,  Antonio Borrello ,  Laszlo Huber ,  Brian T. Irving ,  Milan M. Jovanovic

发明人： Claudio Adragna ,  Aldo Novelli ,  Antonio Borrello ,  Laszlo Huber ,  Brian T. Irving ,  Milan M. Jovanovic

IPC分类号： H02J1/10

CPC分类号： H02M3/1584 ,  H02M2003/1586

摘要： Control device for a switching converter structure comprising at least a first and a second interleaved converter, wherein the control device is configured to designate one converter as master and at least the other converter as slave, to set a time delay of the operating cycle of the slave converter and to synchronize the master and the at the least one slave converter.

摘要翻译： 一种用于开关转换器结构的控制装置，包括至少第一和第二交错转换器，其中所述控制装置被配置为将一个转换器指定为主机，并且将至少另一转换器指定为从机，以设置所述操作周期的时间延迟 从器件转换器，并使主器件与至少一个从器件转换器同步。

公开(公告)号：US20070274111A1

公开(公告)日：2007-11-29

申请号：US10589038

申请日：2005-02-21

申请人： Claudio Adragna ,  Mauro Fagnani

发明人： Claudio Adragna ,  Mauro Fagnani

IPC分类号： H02M3/24

CPC分类号： H02M3/28 ,  H02M2001/0006 ,  H02M2001/009

摘要： A circuit for reducing the variations of auto-supply voltage of a control circuit of a switching power supply, where the control circuit supplies an activation or deactivation signal of a power transistor, includes an auto-supply voltage generator, a controlled switch capable of selectively connecting the generator to the control circuit, and a driving circuit of the controlled switch that supplies a closing signal of the controlled switch after a predefined delay of time starting from the deactivation command.

摘要翻译： 一种用于减小开关电源的控制电路的自动电源电压变化的电路，其中控制电路提供功率晶体管的激活或去激活信号，其包括自动供电电压发生器，能够选择性地 将所述发电机连接到所述控制电路;以及所述受控开关的驱动电路，在从所述停用命令开始的预定义的延迟时间之后提供所述受控开关的闭合信号。

公开(公告)号：US20050207193A1

公开(公告)日：2005-09-22

申请号：US11083444

申请日：2005-03-18

申请人： Claudio Adragna

发明人： Claudio Adragna

IPC分类号： G05F1/70 ,  H02M1/00 ,  H02M1/12 ,  H02M1/42 ,  H02M5/42

CPC分类号： G05F1/70 ,  H02M1/12 ,  H02M1/4225 ,  Y02B70/126

摘要： A transition mode operating device for the correction of the power factor in switching power supply units includes a converter for receiving an input voltage and for providing a regulated output voltage, and a coupled control device. The converter includes a power transistor, a rectifier, and an inductor and auxiliary winding arranged between the rectifier and a power transistor. The control device includes a circuit for generating an error signal, a multiplier for receiving the error signal, and a driving circuit coupled to the multiplier to determine the on time period and the off time period of the power transistor. The control device includes circuitry coupled to the auxiliary winding of the inductor to generate a signal proportional to the input voltage during the on time of the power transistor and a signal representative of the current flowing through the power transistor.

摘要翻译： 用于校正开关电源单元中的功率因数的过渡模式操作装置包括用于接收输入电压并提供稳定输出电压的转换器和耦合控制装置。 该转换器包括功率晶体管，整流器和布置在整流器和功率晶体管之间的电感器和辅助绕组。 控制装置包括用于产生误差信号的电路，用于接收误差信号的乘法器和耦合到乘法器的驱动电路，以确定功率晶体管的接通时间段和关断时间段。 控制装置包括耦合到电感器的辅助绕组的电路，以在功率晶体管导通时产生与输入电压成比例的信号，以及表示流过功率晶体管的电流的信号。

公开(公告)号：US06480402B2

公开(公告)日：2002-11-12

申请号：US09902297

申请日：2001-07-09

申请人： Claudio Adragna ,  Claudio Spini

发明人： Claudio Adragna ,  Claudio Spini

IPC分类号： H02M112

CPC分类号： H02M1/36 ,  Y10S323/901

摘要： The present invention relates to a start up circuit for commutation power supplies (PWM) or DC/DC converters and to a commutation type power supply comprising such a start up circuit. In an embodiment the start up circuit for commutation power supplies having an input terminal (In) and an output terminal (OUT) comprises: a first current generator (41) able to supply a first prefixed current (I) connected between said input terminal (In) and a first node (45); said first node (45) is coupled to said output terminal (OUT); characterized by further comprising a second current generator (42) able to supply a second prefixed current (K*I) connected between said input terminal (In) and a first terminal of a first controlled switch (44); the value of said second prefixed current (K*I) is greater than or equal to the value of said first prefixed current (I); a second terminal of said first controlled switch (44) is connected to said first node (45); a control circuit (43, V3) of said first controlled switch (44) able to maintain closed said first controlled switch (44) in the case in which the voltage on said output terminal (OUT) is lower than a first prefixed voltage (V3). (FIG. 4).

摘要翻译： 本发明涉及一种用于换向电源（PWM）或DC / DC转换器的启动电路以及包括这种启动电路的换向型电源。 在一个实施例中，具有输入端（In）和输出端（OUT）的换向电源的启动电路包括：第一电流发生器（41），其能够提供连接在所述输入端（ In）和第一节点（45）; 所述第一节点（45）耦合到所述输出端（OUT）; 其特征在于还包括能够提供连接在所述输入端子（In）和第一受控开关（44）的第一端子之间的第二预定电流（K * I）的第二电流发生器（42）。 所述第二预定电流（K * I）的值大于或等于所述第一前置电流（I）的值; 所述第一受控开关（44）的第二端子连接到所述第一节点（45）; 在所述输出端子（OUT）的电压低于第一预定电压（V3）的情况下，所述第一受控开关（44）的控制电路（43，V3）能够保持关闭所述第一受控开关（44） ）。 （图4）。

公开(公告)号：US09397574B2

公开(公告)日：2016-07-19

申请号：US13990394

申请日：2011-12-19

申请人： Alberto Stroppa ,  Claudio Spini ,  Claudio Adragna

发明人： Alberto Stroppa ,  Claudio Spini ,  Claudio Adragna

IPC分类号： G05F1/00 ,  H02M3/335 ,  H02M7/757 ,  H02M3/337 ,  H02M1/00

CPC分类号： H02M3/33507 ,  H02M3/3376 ,  H02M2001/0032 ,  Y02B70/16

摘要： A control device controls a switching circuit of a DC-DC converter. The switching circuit includes a half-bridge with at least first and second switches connected between an input voltage and a reference voltage. The converter comprises a transformer with a primary coupled with the center point of the half-bridge and a secondary coupled with a load. The control device comprises an error detector configured to determine an error signal representing a difference between a first signal representative of the voltage across the load and a first reference signal and a frequency controller configured to increase the switching frequency of the half-bridge when the error signal is kept below a second signal.

摘要翻译： 控制装置控制DC-DC转换器的开关电路。 开关电路包括具有连接在输入电压和参考电压之间的至少第一和第二开关的半桥。 该转换器包括一个与半桥的中心点初级耦合的变压器，以及与负载耦合的二次变压器。 控制装置包括误差检测器，其被配置为确定表示代表负载两端的电压的第一信号与第一参考信号之间的差的误差信号，以及配置为当误差增加半桥的开关频率时的频率控制器 信号保持低于第二信号。