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。

公开(公告)号：US20130329470A1

公开(公告)日：2013-12-12

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： H02M3/335

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。

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：US08737092B2

公开(公告)日：2014-05-27

申请号：US13281167

申请日：2011-10-25

申请人： Claudio Adragna

发明人： Claudio Adragna

IPC分类号： H02M3/335

CPC分类号： H02M3/3372 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

摘要： A control device controls a switching circuit of a resonant converter having an output direct current. The switching circuit includes at least a half-bridge of at least a first and a second transistor connected between an input voltage and a reference voltage. The half-bridge is adapted to generate a periodic square-wave voltage for driving the resonant circuit of said resonant circuit and the periodic square-wave voltage oscillates between a high voltage corresponding to the input voltage and a low voltage corresponding to the reference voltage. The control device comprises a generator adapted to generate a periodic square-wave signal for driving the half-bridge. The control device comprises a detector adapted to detect the phase-shift between the periodic square-wave signal generated by the generating means and the current flowing through the resonant circuit, and adapted to control the turning off of the half-bridge when the phase-shift exceeds a first phase-shift value.

摘要翻译： 控制装置控制具有输出直流电的谐振转换器的开关电路。 开关电路至少包括连接在输入电压和参考电压之间的至少第一和第二晶体管的半桥。 半桥适于产生用于驱动所述谐振电路的谐振电路的周期性方波电压，并且周期性方波电压在对应于输入电压的高电压和对应于参考电压的低电压之间振荡。 控制装置包括适于产生用于驱动半桥的周期性方波信号的发生器。 控制装置包括检测器，适于检测由发生装置产生的周期性方波信号与流过谐振电路的电流之间的相移，并且适于在相桥时控制半桥的关断， 移位超过第一相移值。

公开(公告)号：US08451629B2

公开(公告)日：2013-05-28

申请号：US12979214

申请日：2010-12-27

申请人： Claudio Adragna

发明人： Claudio Adragna

IPC分类号： H02M3/335

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：US08270190B2

公开(公告)日：2012-09-18

申请号：US12366498

申请日：2009-02-05

申请人： Claudio Adragna

发明人： Claudio Adragna

IPC分类号： G05F1/70 ,  H02M7/217 ,  G05F1/613

CPC分类号： G05F1/70

摘要： A control device for a power factor correction device in forced switching power supplies is disclosed; the device for correcting the power factor comprises a converter and said control device is coupled with the converter to obtain from an input alternating line voltage a regulated output voltage. The converter comprises a power transistor and the control device comprises a driving circuit of said power transistor; the driving circuit comprises a timer suitable for setting the switch-off period of said power transistor. The timer is coupled with the alternating line voltage in input to the converter and is suitable for determining the switch-off period of the power transistor in function of the value of the alternating line voltage in input to the converter.

摘要翻译： 公开了一种用于强制开关电源中的功率因数校正装置的控制装置; 用于校正功率因数的装置包括转换器，并且所述控制装置与转换器耦合以从输入交替的线路电压获得稳定的输出电压。 所述转换器包括功率晶体管，所述控制装置包括所述功率晶体管的驱动电路; 所述驱动电路包括适于设置所述功率晶体管的截止周期的定时器。 定时器与输入到转换器的交流线路电压耦合，适用于根据输入到转换器的交流线路电压的值来确定功率晶体管的关断周期。

公开(公告)号：US08199531B2

公开(公告)日：2012-06-12

申请号：US12324062

申请日：2008-11-26

申请人： Michele Grande ,  Salvatore Tumminaro ,  Claudio Adragna

发明人： Michele Grande ,  Salvatore Tumminaro ,  Claudio Adragna

IPC分类号： H02M3/335 ,  H02M5/42 ,  H02M7/68 ,  H02M3/24 ,  H02M7/44

CPC分类号： H02M3/33507 ,  H02M3/33523

摘要： An embodiment of a voltage converter includes: voltage-transformer means having a primary side, designed to receive an input voltage, and a secondary side, designed to supply an output voltage; control-switch means coupled to said primary side; and a control circuit, coupled to a control terminal of said control-switch means and designed to control switching thereof as a function of a first signal correlated to said output voltage; said control circuit being provided with an error-amplifier stage, designed to process a difference between said first signal and a reference signal, wherein said error-amplifier stage is configured so as to have a transconductance characteristic with a linear-operation region, having a given slope, and at least one first clamped region, which has a slope lower than said given slope and is contiguous to said linear-operation region.

摘要翻译： 电压转换器的实施例包括：设计成接收输入电压的初级侧的电压互感器装置和被设计为提供输出电压的次级侧; 耦合到所述初级侧的控制开关装置; 以及控制电路，其耦合到所述控制开关装置的控制端，并被设计成根据与所述输出电压相关的第一信号来控制其开关; 所述控制电路设置有误差放大器级，被设计为处理所述第一信号和参考信号之间的差异，其中所述误差放大器级被配置为具有线性运算区域的跨导特性，具有线性运算区域 给定斜率，以及至少一个第一夹紧区域，其具有低于所述给定斜率的斜率，并且与所述线性操作区域相邻。

公开(公告)号：US20120026766A1

公开(公告)日：2012-02-02

申请号：US13191300

申请日：2011-07-26

申请人： Claudio Adragna

发明人： Claudio Adragna

IPC分类号： H02M7/04

CPC分类号： H02M3/156 ,  H02M1/4225 ,  H02M2001/0058 ,  Y02B70/126 ,  Y02B70/1491

摘要： A control device controls a switching converter that converts an alternating supply voltage to a regulated voltage and comprises a switch connected to an inductor. The control device is adapted to control the on period and the off period of said switch for each cycle. The control device comprises a ramp generator adapted to generate a ramp voltage, a comparator adapted to determine the final instant of the on period of the switch by crossing the ramp voltage with a first voltage. The control device has a first signal representing a current through the inductor and a second signal representative of the current flowing through at least one element of the converter. The control device is adapted to control the closing of said switch according to said first signal and comprises a synchronizer adapted to synchronize the start of the ramp voltage with the zero crossing of said second signal.

摘要翻译： 控制装置控制将交流电源电压转换为调节电压的开关转换器，并且包括连接到电感器的开关。 控制装置适于在每个周期中控制所述开关的接通周期和关闭周期。 控制装置包括适于产生斜坡电压的斜坡发生器，比较器适于通过将斜坡电压与第一电压交叉来确定开关的接通周期的最后时刻。 控制装置具有表示通过电感器的电流的第一信号和表示流过转换器的至少一个元件的电流的第二信号。 控制装置适于根据所述第一信号控制所述开关的闭合，并且包括适于使斜坡电压的起始与所述第二信号的过零点同步的同步器。

公开(公告)号：US20120001662A1

公开(公告)日：2012-01-05

申请号：US13109314

申请日：2011-05-17

申请人： Albino Pidutti ,  Stefano Beria ,  Claudio Adragna

发明人： Albino Pidutti ,  Stefano Beria ,  Claudio Adragna

IPC分类号： H03B1/00

CPC分类号： H05B41/2828 ,  H02M1/32 ,  H02M1/36 ,  H02M1/38 ,  H05B41/2856 ,  H05B41/2986

摘要： Controlling a resonant switching system, which includes a first switch and a second switch in a half-bridge configuration for driving a resonant load. A corresponding control system includes command means for switching on and switching off the switches alternatively according to a working frequency of the switching system. The control system includes detection means for detecting a zeroing of a working current being supplied by the switching system to the resonant load in a temporal observation window; the observation window follows each switching off of at least one of the switches, and has a length equal to a fraction of a working period of the switching system. Correction means are then provided for modifying the working frequency in response to each detection of the zeroing in the observation window.

摘要翻译： 控制谐振开关系统，其包括用于驱动谐振负载的半桥配置的第一开关和第二开关。 相应的控制系统包括根据交换系统的工作频率交替地接通和切断交换机的命令装置。 控制系统包括检测装置，用于在时间观察窗中检测由开关系统提供的工作电流对谐振负载的归零; 每个关闭至少一个开关的每个关闭后的观察窗口，其长度等于开关系统的工作周期的一小部分。 然后提供校正装置，用于响应于每次检测观察窗中的归零而修改工作频率。

公开(公告)号：US20110157927A1

公开(公告)日：2011-06-30

申请号：US12978841

申请日：2010-12-27

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

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

IPC分类号： H02M3/335

CPC分类号： H02M3/3376 ,  Y02B70/1433

摘要： A control device for a resonant converter, the control device including a first circuit to integrate at least one signal indicating a half wave of a current circulating in a primary winding of a transformer; the first circuit is structured to generate at least a control signal of the switching circuit depending on the integrated signal. The control device includes a second circuit to impose the equality of a switching-on time period of the first and second switches.

摘要翻译： 一种用于谐振转换器的控制装置，所述控制装置包括：第一电路，用于积分表示在变压器的初级绕组中循环的电流的半波的至少一个信号; 第一电路被构造成根据积分信号产生至少一个开关电路的控制信号。 控制装置包括施加第一和第二开关的接通时间段相等的第二电路。