公开(公告)号：US06487059B2

公开(公告)日：2002-11-26

申请号：US09919343

申请日：2001-07-30

申请人： Gregorio Bontempo ,  Claudio Adragna ,  Mauro Fagnani ,  Albino Pidutti ,  Francesco Pulvirenti ,  Roberto Quaglino ,  Giuseppe Gattavari

发明人： Gregorio Bontempo ,  Claudio Adragna ,  Mauro Fagnani ,  Albino Pidutti ,  Francesco Pulvirenti ,  Roberto Quaglino ,  Giuseppe Gattavari

IPC分类号： H02H320

CPC分类号： H02M3/28 ,  H02M1/32 ,  H02M3/33523

摘要： The power supply device includes a DC-DC converter circuit having a power switch and a driving stage. The driving stage has a compensation terminal on which a compensation voltage is present, and which receives a biasing current. The driving stage includes a control circuit having an output terminal connected to a control terminal of the power switch and disconnection-detecting circuitry connected to the compensation terminal and generating a signal for permanent turning-off of the power switch when the biasing current drops below a current-threshold value. The driving stage moreover includes over-voltage detecting circuitry connected to the compensation terminal and generating a signal for temporary turning-off of the power switch when the compensation voltage exceeds a voltage-threshold value.

摘要翻译： 电源装置包括具有电源开关和驱动级的DC-DC转换器电路。 驱动级具有补偿端子，其上存在补偿电压，并且接收偏置电流。 驱动级包括控制电路，该控制电路具有连接到电源开关的控制端子的输出端子和连接到补偿端子的断开检测电路，并且当偏置电流下降至低于该值时产生用于永久关断电源开关的信号 电流阈值。 此外，驱动级还包括连接到补偿端子的过电压检测电路，并且当补偿电压超过电压阈值时，产生暂时关断电源开关的信号。

公开(公告)号：US20060152951A1

公开(公告)日：2006-07-13

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： H02M1/00

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：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：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：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：US06822401B2

公开(公告)日：2004-11-23

申请号：US10057003

申请日：2002-01-24

申请人： Flavia Borella ,  Ugo Moriconi ,  Albino Pidutti ,  Roberto Quaglino ,  Francesca Sandrini

发明人： Flavia Borella ,  Ugo Moriconi ,  Albino Pidutti ,  Roberto Quaglino ,  Francesca Sandrini

IPC分类号： G05F100

CPC分类号： H05B41/2985 ,  H05B41/382

摘要： A method manages lamp fault conditions in electronic ballasts for one or more gas discharge lamps. The method for fault management of electronic ballast for at least one gas discharge lamp includes the steps of: preheating the lamp filaments applying a low current for a predetermined time; igniting the lamp by increasing at a predetermined rate the voltage applied up to a predetermined strike value; monitoring the lamp current; repeating the steps of igniting the lamp and monitoring the lamp current for a predetermined numbers of times if the lamp current is over a predetermined threshold; and powering the lamp at normal operating conditions.

摘要翻译： 一种方法来管理一个或多个气体放电灯的电子镇流器中的灯故障状况。 用于至少一个气体放电灯的电子镇流器的故障管理方法包括以下步骤：预热灯灯丝施加低电流达预定时间; 通过以预定速率增加施加到预定冲击值的电压来点燃灯; 监控灯电流; 如果灯电流超过预定阈值，则重复点灯并监视灯电流达预定次数的步骤; 并在正常工作条件下为灯供电。

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：US07042743B2

公开(公告)日：2006-05-09

申请号：US10532418

申请日：2002-09-20

申请人： Albino Pidutti ,  Claudio Adragna

发明人： Albino Pidutti ,  Claudio Adragna

IPC分类号： H02M7/217

CPC分类号： H02M1/4225 ,  Y02B70/126

摘要： A power factor correction device for switching power supplies is described, which comprises a converter (20) and a control device (100; 200; 300) coupled with said converter (20) in such a way as to obtain from a input network alternated voltage (Vin) a direct regulated voltage (Vout) at the output terminal. The converter (20) comprises a power transistor (M) and the control device (100; 200; 300) comprises an error amplifier (3) having in input at the inverting terminal a first signal (Vr) proportional to said regulated voltage (Vout) and at the non-inverting terminal a voltage reference (Vref), at least one capacitor (C) having a first terminal and a second terminal which are coupled respectively with the inverting terminal and the output terminal (31) of the error amplifier (3) and a driving circuit (4–6) of said power transistor (M) which is coupled with the second terminal of said capacitor (C). The control device (100; 200; 300) comprises interruption means (SW) placed between the output terminal (31) of said error amplifier (3) and the second terminal of said capacitor (C) and control means (103; 103, 301–303) able to activate said interruption means (SW) so as to control the interruption of the connection between the error amplifier (3) and said driving circuit (4–6) for at least one time period (T) lower than the time period (Tciclo) in which said control device (100; 200; 300) is operative.

摘要翻译： 描述了用于切换电源的功率因数校正装置，其包括与所述转换器（20）耦合的转换器（20）和控制装置（100; 200; 300），以便从输入网络获得交替电压 （Vin）在输出端子处的直接调节电压（Vout）。 所述转换器（20）包括功率晶体管（M），所述控制装置（100; 200; 300）包括误差放大器（3），所述误差放大器（3）在所述反相端子处具有与所述调节电压（Vout ），并且在非反相端子处具有参考电压（Vref），具有第一端子和第二端子的至少一个电容器（C）分别与误差放大器的反相端子和输出端子（31） 3）和与所述电容器（C）的第二端子耦合的所述功率晶体管（M）的驱动电路（4-6）。 控制装置（100; 200; 300）包括放置在所述误差放大器（3）的输出端（31）和所述电容器（C）的第二端之间的中断装置（SW）和控制装置（103; 103,301 -303）能够激活所述中断装置（SW），以便在误差放大器（3）和所述驱动电路（4-6）之间的至少一个时间段（T）的时间段（T）之上的时间 期间（Tciclo），其中所述控制装置（100; 200; 300）可操作。

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：US20060044855A1

公开(公告)日：2006-03-02

申请号：US10532418

申请日：2002-09-20

申请人： Albino Pidutti ,  Claudio Adragna

发明人： Albino Pidutti ,  Claudio Adragna

IPC分类号： H02M7/04

CPC分类号： H02M1/4225 ,  Y02B70/126

摘要： A power factor correction device for switching power supplies is described, which comprises a converter (20) and a control device (100; 200; 300) coupled with said converter (20) in such a way as to obtain from a input network alternated voltage (Vin) a direct regulated voltage (Vout) at the output terminal. The converter (20) comprises a power transistor (M) and the control device (100; 200; 300) comprises an error amplifier (3) having in input at the inverting terminal a first signal (Vr) proportional to said regulated voltage (Vout) and at the non-inverting terminal a voltage reference (Vref), at least one capacitor (C) having a first terminal and a second terminal which are coupled respectively with the inverting terminal and the output terminal (31) of the error amplifier (3) and a driving circuit (4-6) of said power transistor (M) which is coupled with the second terminal of said capacitor (C). The control device (100; 200; 300) comprises interruption means (SW) placed between the output terminal (31) of said error amplifier (3) and the second terminal of said capacitor (C) and control means (103; 103, 301-303) able to activate said interruption means (SW) so as to control the interruption of the connection between the error amplifier (3) and said driving circuit (4-6) for at least one time period (T) lower than the time period (Tciclo) in which said control device (100; 200; 300) is operative.

摘要翻译： 描述了用于切换电源的功率因数校正装置，其包括与所述转换器（20）耦合的转换器（20）和控制装置（100; 200; 300），以便从输入网络获得交替电压 （Vin）在输出端子处的直接调节电压（Vout）。 所述转换器（20）包括功率晶体管（M），所述控制装置（100; 200; 300）包括误差放大器（3），所述误差放大器（3）在所述反相端子处具有与所述调节电压（Vout ），并且在非反相端子处具有参考电压（Vref），具有第一端子和第二端子的至少一个电容器（C）分别与误差放大器的反相端子和输出端子（31）耦合 3）和与所述电容器（C）的第二端子耦合的所述功率晶体管（M）的驱动电路（4-6）。 控制装置（100; 200; 300）包括放置在所述误差放大器（3）的输出端（31）和所述电容器（C）的第二端之间的中断装置（SW）和控制装置（103; 103,301 - 303）能够激活所述中断装置（SW），以便控制误差放大器（3）和所述驱动电路（4-6）之间的连接的中断至少比时间（T）低一个时间段 期间（Tciclo），其中所述控制装置（100; 200; 300）可操作。