公开(公告)号：US07023289B2

公开(公告)日：2006-04-04

申请号：US10715338

申请日：2003-11-17

申请人： Albino Pidutti ,  Stefano Beria

发明人： Albino Pidutti ,  Stefano Beria

IPC分类号： H03B5/24 ,  H05B41/28 ,  H05B41/282

CPC分类号： H03K3/0231 ,  H03K17/08122 ,  H03K17/6871

摘要： A programmable oscillator comprises a capacitor; a current generator couplable to said capacitor that generates a charging current of said capacitor; further comprising at least one resistance coupled to said capacitor; a comparator coupled to said capacitor for comparing a voltage at the terminals of said capacitor with a prefixed reference voltage and for generating an output signal; a first switch, controlled by said output signal, coupled to said capacitor that creates a current path able to facilitate the discharging of said capacitor.

摘要翻译： 可编程振荡器包括电容器; 耦合到所述电容器的电流发生器，其产生所述电容器的充电电流; 还包括耦合到所述电容器的至少一个电阻器; 耦合到所述电容器的比较器，用于将所述电容器的端子处的电压与预定参考电压进行比较并用于产生输出信号; 由所述输出信号控制的第一开关耦合到所述电容器，其产生能够促进所述电容器放电的电流通路。

公开(公告)号：US20100188134A1

公开(公告)日：2010-07-29

申请号：US12649081

申请日：2009-12-29

申请人： Albino Pidutti ,  Stefano Beria ,  Claudio Adragna

发明人： Albino Pidutti ,  Stefano Beria ,  Claudio Adragna

IPC分类号： H03K17/687

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：US20050270713A1

公开(公告)日：2005-12-08

申请号：US10631670

申请日：2003-07-31

申请人： Albino Pidutti ,  Stefano Beria

发明人： Albino Pidutti ,  Stefano Beria

IPC分类号： H02M1/00 ,  H02M1/42 ,  H02H3/20

CPC分类号： H02M1/4225 ,  Y02B70/126 ,  Y02P80/112

摘要： The present invention refers to a switching power supply, in particular to a power factor corrector, and more particularly to a circuit for the programmable protection against output over-voltages. It also refers to a power factor corrector integrated circuit comprising a circuit for the programmable protection against output over-voltages. In one embodiment the circuit for the programmable protection against output over-voltages in a power Factor corrector comprises means for detecting a signal proportional to the output voltage; a first preset reference voltage; a second preset reference voltage; a transconductance amplifier which receives in input the signal proportional to the output voltage and the first preset reference voltage; a comparator which receives in input the signal proportional to the output voltage and the second preset reference voltage; means suitable for absorbing a current coming from the signal proportional to the output voltage.

摘要翻译： 本发明涉及开关电源，特别是功率因数校正器的开关电源，更具体地，涉及用于可编程保护以防止输出过电压的电路。 它还涉及功率因数校正器集成电路，其包括用于可编程保护以防止输出过电压的电路。 在一个实施例中，用于在功率因数校正器中防止输出过电压的可编程保护的电路包括用于检测与输出电压成比例的信号的装置; 第一预设参考电压; 第二预设参考电压; 跨导放大器，其在输入端接收与输出电压和第一预置参考电压成比例的信号; 比较器，其在输入端接收与输出电压成正比的信号和第二预置参考电压; 适用于吸收与输出电压成比例的信号的电流。

公开(公告)号：US07120000B2

公开(公告)日：2006-10-10

申请号：US10631670

申请日：2003-07-31

申请人： Albino Pidutti ,  Stefano Beria

发明人： Albino Pidutti ,  Stefano Beria

IPC分类号： H02H9/04 ,  G05F1/40

CPC分类号： H02M1/4225 ,  Y02B70/126 ,  Y02P80/112

摘要： The present invention refers to a switching power supply, in particular to a power factor corrector, and more particularly to a circuit for the programmable protection against output over-voltages. It also refers to a power factor corrector integrated circuit comprising a circuit for the programmable protection against output over-voltages. In one embodiment the circuit for the programmable protection against output over-voltages in a power Factor corrector comprises means for detecting a signal proportional to the output voltage; a first preset reference voltage; a second preset reference voltage; a transconductance amplifier which receives in input the signal proportional to the output voltage and the first preset reference voltage; a comparator which receives in input the signal proportional to the output voltage and the second preset reference voltage; means suitable for absorbing a current coming from the signal proportional to the output voltage.

摘要翻译： 本发明涉及开关电源，特别是功率因数校正器的开关电源，更具体地，涉及用于可编程保护以防止输出过电压的电路。 它还涉及功率因数校正器集成电路，其包括用于可编程保护以防止输出过电压的电路。 在一个实施例中，用于在功率因数校正器中防止输出过电压的可编程保护的电路包括用于检测与输出电压成比例的信号的装置; 第一预设参考电压; 第二预设参考电压; 跨导放大器，其在输入端接收与输出电压和第一预置参考电压成比例的信号; 比较器，其在输入端接收与输出电压成正比的信号和第二预置参考电压; 适用于吸收与输出电压成比例的信号的电流。

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：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：US20050052254A1

公开(公告)日：2005-03-10

申请号：US10715338

申请日：2003-11-17

申请人： Albino Pidutti ,  Stefano Beria

发明人： Albino Pidutti ,  Stefano Beria

IPC分类号： H03K3/0231 ,  H03K17/0812 ,  H03K17/687 ,  H03K3/37

CPC分类号： H03K3/0231 ,  H03K17/08122 ,  H03K17/6871

摘要： A programmable oscillator comprises a capacitor; a current generator couplable to said capacitor that generates a charging current of said capacitor; further comprising at least one resistance coupled to said capacitor; a comparator coupled to said capacitor for comparing a voltage at the terminals of said capacitor with a prefixed reference voltage and for generating an output signal; a first switch, controlled by said output signal, coupled to said capacitor that creates a current path able to facilitate the discharging of said capacitor.

摘要翻译： 可编程振荡器包括电容器; 耦合到所述电容器的电流发生器，其产生所述电容器的充电电流; 还包括耦合到所述电容器的至少一个电阻器; 耦合到所述电容器的比较器，用于将所述电容器的端子处的电压与预定参考电压进行比较并用于产生输出信号; 由所述输出信号控制的第一开关耦合到所述电容器，其产生能够促进所述电容器放电的电流通路。