公开(公告)号：US08212591B2

公开(公告)日：2012-07-03

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 to 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：US08143866B2

公开(公告)日：2012-03-27

申请号：US12367117

申请日：2009-02-06

申请人： Mauro Fagnani ,  Vincenzo Bartolo ,  Claudio Adragna

发明人： Mauro Fagnani ,  Vincenzo Bartolo ,  Claudio Adragna

IPC分类号： G05F1/00

CPC分类号： G05F1/70

摘要： Herein described is a control device of a device for the correction of the power factor in forced switching power supplies; said device for the correction of the power factor comprises a converter and said control device is coupled to the converter to obtain from an alternating input line voltage a regulated output voltage. The control device comprises generating means associated to a capacitor for generating a signal representative of the root-mean-square value of the alternating line voltage; the generating means are associated to means for discharging said capacitor. The control device comprises further means for discharging the capacitor suitable for discharging said capacitor when the signal representative of the root-mean-square value of the alternating line voltage goes below a given value.

摘要翻译： 这里描述了用于校正强制开关电源中的功率因数的装置的控制装置; 所述用于校正功率因数的装置包括转换器，并且所述控制装置耦合到转换器以从交流输入线电压获得稳定的输出电压。 控制装置包括与电容器相关联的产生装置，用于产生表示交流线路电压的均方根值的信号; 所述发生装置与用于放电所述电容器的装置相关联。 控制装置还包括当表示交流线路电压的均方根值的信号低于给定值时，用于放电适合于放电所述电容器的电容器的装置。

公开(公告)号：US20120026765A1

公开(公告)日：2012-02-02

申请号：US13191282

申请日：2011-07-26

申请人： Claudio Adragna

发明人： Claudio Adragna

IPC分类号： H02M7/12

CPC分类号： H02M7/06 ,  H02M1/08 ,  H02M1/42 ,  H02M1/4225 ,  H02M2001/0009 ,  H02M2001/0058 ,  Y02B70/126 ,  Y02B70/1491

摘要： A control device controls a switching converter having an input alternating supply voltage and a regulated direct voltage at the output terminal. The converter comprises a switch and the control device is adapted to control the on time period and the off time period of said switch for each cycle. The control device has a first input signal representative of the current flowing through at least one element of the converter and comprises a zero crossing detector adapted to detect at least one pair of first and second zero crossings of said first signal for each switching cycle, said second zero crossing immediately following the first zero crossing and occurring in opposite direction with respect to the first zero crossing. The control device comprises a synchronizer adapted to synchronize the start of the on period with each second zero crossing of said first signal.

摘要翻译： 控制装置控制在输出端子具有输入交流电源电压和调节的直流电压的开关转换器。 转换器包括开关，并且控制装置适于在每个周期中控制所述开关的接通时间段和关闭时间段。 所述控制装置具有表示流过所述转换器的至少一个元件的电流的第一输入信号，并且包括适于在每个开关周期中检测所述第一信号的至少一对第一和第二过零点的过零检测器，所述过零检测器 紧邻第一过零点之后的第二零交叉并且相对于第一过零点以相反方向发生。 该控制装置包括一个同步器，适合于使接通周期的开始与所述第一信号的每个第二过零点同步。

公开(公告)号：US20090146618A1

公开(公告)日：2009-06-11

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

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：US20090141524A1

公开(公告)日：2009-06-04

申请号：US12367117

申请日：2009-02-06

申请人： Mauro Fagnani ,  Vincenzo Bartolo ,  Claudio Adragna

发明人： Mauro Fagnani ,  Vincenzo Bartolo ,  Claudio Adragna

IPC分类号： H02M7/12

CPC分类号： G05F1/70

摘要： Herein described is a control device of a device for the correction of the power factor in forced switching power supplies; said device for the correction of the power factor comprises a converter and said control device is coupled to the converter to obtain from an alternating input line voltage a regulated output voltage. The control device comprises generating means associated to a capacitor for generating a signal representative of the root-mean-square value of the alternating line voltage; the generating means are associated to means for discharging said capacitor. The control device comprises further means for discharging the capacitor suitable for discharging said capacitor when the signal representative of the root-mean-square value of the alternating line voltage goes below a given value.

摘要翻译： 这里描述了用于校正强制开关电源中的功率因数的装置的控制装置; 所述用于校正功率因数的装置包括转换器，并且所述控制装置耦合到转换器以从交流输入线电压获得稳定的输出电压。 控制装置包括与电容器相关联的产生装置，用于产生表示交流线路电压的均方根值的信号; 所述发生装置与用于放电所述电容器的装置相关联。 控制装置还包括当表示交流线路电压的均方根值的信号低于给定值时，用于放电适合于放电所述电容器的电容器的装置。

公开(公告)号：US20090141520A1

公开(公告)日：2009-06-04

申请号：US12324194

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 ,  G05F1/10

CPC分类号： H02M3/33507 ,  H02M3/33523

摘要： An embodiment of a voltage converter, designed to convert an input voltage into a regulated output voltage, having: a voltage transformer having a primary winding receiving the input voltage, a secondary winding supplying the output voltage (Vout), and an auxiliary winding supplying a feedback signal correlated to the output voltage; a control switch, connected to the primary winding; and a control circuit, connected to a control terminal of the control switch for controlling switching thereof as a function of the feedback signal. The control circuit is provided with a sampling stage that samples the feedback signal and supplies a sampled signal. An averager stage is connected to the output of the sampling stage and implements a low-pass filtering of the sampled signal so as to reduce undesirable oscillations due to sampling.

摘要翻译： 电压转换器的一个实施例，被设计成将输入电压转换为稳压输出电压，具有：具有接收输入电压的初级绕组的电压互感器，提供输出电压（Vout）的次级绕组和提供输出电压 反馈信号与输出电压相关; 连接到初级绕组的控制开关; 以及控制电路，连接到控制开关的控制端，用于根据反馈信号控制其开关。 控制电路设置有采样级，其对反馈信号进行采样并提供采样信号。 平均器级与采样级的输出端连接，对采样信号进行低通滤波，以减少由于采样引起的不希望的振荡。

公开(公告)号：US07440297B2

公开(公告)日：2008-10-21

申请号：US11523756

申请日：2006-09-18

申请人： Claudio Adragna ,  Mauro Fagnani ,  Ugo Moriconi

发明人： Claudio Adragna ,  Mauro Fagnani ,  Ugo Moriconi

IPC分类号： H02H7/12 ,  G05F1/70 ,  H02M3/335

CPC分类号： H02M1/32 ,  H02M1/4225 ,  Y02B70/126

摘要： A device corrects the power factor in forced switching power supplies and includes a converter and a control device to obtain a regulated voltage on an output terminal. The control device comprises an error amplifier having an inverting terminal (Vout) and a non-inverting terminal receiving a reference voltage. The device includes first and second resistances coupled in series with a conduction element positioned between the first resistance and the inverting terminal of the error amplifier and a fault detector suitable for detecting the electrical connection of the conduction element with the output terminal and suitable for detecting an output signal of the second resistance. The fault detector is suitable for supplying a malfunction signal upon detecting an electric disconnection of the conduction element from the output terminal or when the output signal of the second resistance tends to zero.

摘要翻译： 一个装置可以纠正强制开关电源的功率因数，并包括一个转换器和一个控制装置，以便在输出端子上获得稳压电压。 控制装置包括具有反相端（Vout）和接收参考电压的同相端的误差放大器。 该器件包括与位于误差放大器的第一电阻和反相端之间的导电元件串联耦合的第一和第二电阻，以及适用于检测导电元件与输出端子的电连接并适合于检测 第二电阻的输出信号。 故障检测器适用于在检测到导电元件与输出端子断电时或者当第二电阻的输出信号趋于零时，提供故障信号。

公开(公告)号：US07319601B2

公开(公告)日：2008-01-15

申请号：US10523244

申请日：2002-07-19

申请人： Mauro Fagnani ,  Albino Pidutti ,  Claudio Adragna

发明人： Mauro Fagnani ,  Albino Pidutti ,  Claudio Adragna

IPC分类号： H02M1/36 ,  H02M3/335

CPC分类号： H02M1/36 ,  H02M3/335 ,  H02M2001/0006

摘要： A bootstrap circuit for switching power supplies (SMPS), a switching power supply including a bootstrap circuit, and an integrated circuit of a switching power supply, are provided. The bootstrap circuit (13) for switching power supplies includes a first supply voltage (Vin) coming from a first terminal and a second supply voltage (Vcc) coming from a second terminal and a third terminal (30). The bootstrap circuit includes: a first current path between the first terminal and the third terminal (30); a second current path between the first terminal and the second terminal; a third current path between the second terminal and the third terminal (30); and a two-way voltage regulator (M3, Dz2, R5, R6) placed along the second current path.

摘要翻译： 提供了一种用于开关电源（SMPS）的自举电路，包括自举电路的开关电源和开关电源的集成电路。 用于切换电源的自举电路（13）包括来自第一端子的第一电源电压（Vin）和来自第二端子和第三端子（30）的第二电源电压（Vcc）。 引导电路包括：第一端子和第三端子之间的第一电流路径; 第一端子和第二端子之间的第二电流路径; 第二端子和第三端子之间的第三电流通路; 以及沿着第二电流路径放置的双向电压调节器（M 3，Dz 2，R 5，R 6）。

公开(公告)号：US20070063684A1

公开(公告)日：2007-03-22

申请号：US11523756

申请日：2006-09-18

申请人： Claudio Adragna ,  Mauro Fagnani ,  Ugo Moriconi

发明人： Claudio Adragna ,  Mauro Fagnani ,  Ugo Moriconi

IPC分类号： G05F1/00

CPC分类号： H02M1/32 ,  H02M1/4225 ,  Y02B70/126

摘要： A device corrects the power factor in forced switching power supplies and includes a converter and a control device to obtain a regulated voltage on an output terminal. The control device comprises an error amplifier having an inverting terminal (Vout) and a non-inverting terminal receiving a reference voltage. The device includes first and second resistances coupled in series with a conduction element positioned between the first resistance and the inverting terminal of the error amplifier and a fault detector suitable for detecting the electrical connection of the conduction element with the output terminal and suitable for detecting an output signal of the second resistance. The fault detector is suitable for supplying a malfunction signal upon detecting an electric disconnection of the conduction element from the output terminal or when the output signal of the second resistance tends to zero.

摘要翻译： 一个装置可以纠正强制开关电源的功率因数，并包括一个转换器和一个控制装置，以便在输出端子上获得稳压电压。 控制装置包括具有反相端（Vout）和接收参考电压的同相端的误差放大器。 该器件包括与位于误差放大器的第一电阻和反相端之间的导电元件串联耦合的第一和第二电阻，以及适用于检测导电元件与输出端子的电连接并适合于检测 第二电阻的输出信号。 故障检测器适用于在检测到导电元件与输出端子断电时或者当第二电阻的输出信号趋于零时，提供故障信号。

公开(公告)号：US07149068B2

公开(公告)日：2006-12-12

申请号：US10824630

申请日：2004-04-14

申请人： Claudio Adragna ,  Mauro Fagnani

发明人： Claudio Adragna ,  Mauro Fagnani

IPC分类号： H02H3/24 ,  H02H7/00 ,  H02M1/00

CPC分类号： H02M1/36 ,  Y10S323/901

摘要： A circuit is provided for controlling a minimum operating voltage of an integrated control circuit of a switching power supply. The circuit includes at least one switch for switching the minimum operating voltage from a first voltage value to a second voltage value under conditions of low or null load of the switching power supply, and for switching the minimum operating voltage from the second voltage value to the first voltage value if the load of the switching power supply is greater than a predetermined load and the supply voltage is greater than the first voltage value. The minimum operating voltage can assume at least the first voltage value and the second voltage value, and the first voltage value is greater than the second voltage value. Also provided is a method for controlling a minimum operating voltage of an integrated control circuit of a switching power supply.

摘要翻译： 提供用于控制开关电源的集成控制电路的最小工作电压的电路。 该电路包括至少一个开关，用于在开关电源的低或零负载条件下将最小工作电压从第一电压值切换到第二电压值，并且将最小工作电压从第二电压值切换到 第一电压值，如果开关电源的负载大于预定负载，并且电源电压大于第一电压值。 最小工作电压可以采取至少第一电压值和第二电压值，并且第一电压值大于第二电压值。 还提供了一种用于控制开关电源的集成控制电路的最小工作电压的方法。