公开(公告)号：US06946819B2

公开(公告)日：2005-09-20

申请号：US10633321

申请日：2003-08-01

申请人： Mauro Fagnani ,  Albino Pidutti ,  Claudio Adragna

发明人： Mauro Fagnani ,  Albino Pidutti ,  Claudio Adragna

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

CPC分类号： H02M1/4225 ,  Y02B70/126

摘要： A device for the correction of the power factor in power supply units with forced switching operating in transition mode is described. The device comprises a converter and a control device coupled to said converter so as to obtain from an alternating network input voltage a regulated output voltage on the output terminal. The converter comprises a power transistor and the control device comprises a pilot circuit suitable for determining the period of switched-on time and the period of switched-off time of said power transistor and control means coupled to said pilot circuits and with said converter and which are capable of prolonging said period of switched-on time of the power transistor at the instants of time in which the alternating network voltage substantially assumes the value zero.

摘要翻译： 描述用于在过渡模式下以强制切换操作的电源单元中的功率因数校正的装置。 该装置包括转换器和耦合到所述转换器的控制装置，以便从输入端子上的交变网络输入电压获得稳定的输出电压。 该转换器包括一个功率晶体管，该控制装置包括一个导频电路，适用于确定所述功率晶体管的接通时间周期和关断时间的周期以及耦合到所述导频电路和所述转换器的控制装置， 能够在交流网络电压基本上为零值的时刻延长功率晶体管的接通时间的所述周期。

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：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：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。

公开(公告)号：US06984963B2

公开(公告)日：2006-01-10

申请号：US10633322

申请日：2003-08-01

申请人： Albino Pidutti ,  Claudio Adragna ,  Mauro Fagnani

发明人： Albino Pidutti ,  Claudio Adragna ,  Mauro Fagnani

IPC分类号： G05F1/70

CPC分类号： H02M1/4225 ,  Y02B70/126

摘要： A device is described for the correction of the power factor in power supply units with forced switching operating in transition mode. Said device comprises a converter and a control device coupled with said converter so as to obtain a regulated voltage on the output terminal from an alternating network input voltage. The converter comprises a power transistor whilst the control device comprises a pilot circuit suitable for determining the switch-on time and the switch-off time of the power transistor. The control device furthermore comprises control means coupled with said pilot circuit and with said converter and capable of prolonging the switch-on time of the power transistor at the instants of time wherein the alternating network voltage substantially takes on the value zero.

摘要翻译： 描述了用于在转换模式下强制切换操作的电源单元中功率因数校正的装置。 所述装置包括转换器和与所述转换器耦合的控制装置，以便从交替的网络输入电压获得输出端上的调节电压。 该转换器包括功率晶体管，而控制装置包括适于确定功率晶体管的接通时间和关断时间的导频电路。 控制装置还包括与所述导频电路和所述转换器耦合的控制装置，并且能够在交流网络电压基本上取零值的时刻延长功率晶体管的接通时间。

公开(公告)号：US5532645A

公开(公告)日：1996-07-02

申请号：US328233

申请日：1994-10-24

申请人： Mauro Fagnani ,  Bruno Ferrario ,  Paolo Sandri

发明人： Mauro Fagnani ,  Bruno Ferrario ,  Paolo Sandri

IPC分类号： H03F3/343 ,  H03F1/00 ,  H03F1/30 ,  H03F3/26

CPC分类号： H03F1/305

摘要： A circuit for regulating the charging time of the output node of an amplifier at start up. The output node commonly comprises an external soft-start capacitor charged by a current delivered by a pull-up transistor of a push-pull output stage of the amplifier, through a decoupling diode that is functionally connected between the output node of the amplifier and a terminal of the external soft-start capacitor. The present application provides a current mirror feed back circuit capable of mirroring the charge current of the external soft-start capacitor onto the driving node of the pull-up transistor of the output stage of the amplifier. The regulating circuit permits use of an external capacitance of extremely small size. Upon the reaching of a fully charged condition by the external capacitor, the control circuit self-isolates and does not influence in any way the normal operation of the amplifier.

摘要翻译： 用于调节放大器输出节点在启动时的充电时间的电路。 输出节点通常包括由放大器的推挽输出级的上拉晶体管通过放大器的上拉输出级提供的电流充电的外部软启动电容器，该去耦二极管功能上连接在放大器的输出节点和 端子的外部软启动电容。 本申请提供了能够将外部软启动电容器的充电电流镜像到放大器的输出级的上拉晶体管的驱动节点上的电流镜反馈电路。 调节电路允许使用极小尺寸的外部电容。 当外部电容器达到完全充电状态时，控制电路自我隔离并且不会以任何方式影响放大器的正常工作。