公开(公告)号：US06370042B2

公开(公告)日：2002-04-09

申请号：US09805452

申请日：2001-03-13

申请人： Giuseppe Gattavari ,  Claudio Adragna ,  Mauro Fagnani

发明人： Giuseppe Gattavari ,  Claudio Adragna ,  Mauro Fagnani

IPC分类号： H02M3335

CPC分类号： H02M3/335 ,  Y10S323/901

摘要： A self-disabling and self-recovering converter includes a transformer connected to a power source and has an auxiliary winding for providing a self-supply voltage after start-up, and an integrated circuit having circuitry and a plurality of pins connected thereto. The converter also includes at least one external line and a sensor connected thereto for an electrical or physical quantity to be monitored. The at least one external line is biased through a first pin with the self-supply voltage, and is functionally coupled to a second pin when a threshold is surpassed. A sectionable voltage clamp chain is connected between the auxiliary winding and a voltage reference. A self-recovery circuit having a first input is connected to the auxiliary winding and a second input is connected through the second pin to the at least one external line. An output of the self-recovery circuit is connected to the sectionable voltage clamp chain for sectioning a portion thereof to the voltage reference for self-supplying the integrated circuit.

摘要翻译： 一种自发电和自恢复转换器包括连接到电源的变压器，并且具有用于在启动之后提供自供电电压的辅助绕组，以及具有连接到其上的电路和多个引脚的集成电路。 转换器还包括至少一个外部线路和连接到其上的传感器，用于要监控的电气或物理量。 所述至少一个外部线路通过具有自供电电压的第一引脚偏置，并且当阈值被超过时功能上耦合到第二引脚。 辅助绕组和参考电压之间连接有一个可分段电压钳链。 具有第一输入的自恢复电路连接到辅助绕组，并且第二输入端通过第二引脚连接到至少一个外部线路。 自恢复电路的输出端连接到可分段电压钳位链，用于将其一部分分割成用于自供电的集成电路的电压基准。

公开(公告)号：US06998827B2

公开(公告)日：2006-02-14

申请号：US10722376

申请日：2003-11-25

申请人： Giuseppe Gattavari ,  Raimondo Vai

发明人： Giuseppe Gattavari ,  Raimondo Vai

IPC分类号： G05F1/40

CPC分类号： H02M3/156 ,  H02M2001/0009 ,  H02M2001/0025

摘要： A switching voltage regulator provides a regulated voltage at an output terminal. The switching voltage regulator includes a MOS transistor having a non-drivable terminal coupled with the output terminal and a control circuit receiving a signal that is representative of the current signal flowing in the MOS transistor. The control circuit includes a compensation device adapted for cancelling the thermal variation of the signal that is representative of the current signal flowing in the MOS transistor.

摘要翻译： 开关稳压器在输出端提供稳压电压。 开关电压调节器包括具有与输出端子耦合的不可驱动端子的MOS晶体管和接收代表在MOS晶体管中流动的电流信号的信号的控制电路。 该控制电路包括适于消除代表在MOS晶体管中流动的电流信号的信号的热变化的补偿装置。

公开(公告)号：US4725769A

公开(公告)日：1988-02-16

申请号：US36518

申请日：1987-04-09

申请人： Carlo Cini ,  Claudio Diazzi ,  Giuseppe Gattavari

发明人： Carlo Cini ,  Claudio Diazzi ,  Giuseppe Gattavari

IPC分类号： H03K17/08 ,  H01H47/32 ,  H02H3/087 ,  H02M3/155 ,  G05F1/573

CPC分类号： H01H47/325 ,  H02H3/087

摘要： The switching driving device with current limitation, operating reliably even with high switching frequencies, comprises a drive stage receiving at the input a timing clock signal at a preset frequency and generating at the output a drive signal synchronized with the timing clock signal, a power element connected at the input to the drive stage, receiving therefrom the drive signal and generating a load supply signal, a load fed by the power element, and a current sensor generating an overload signal when the current in the load has reached a preset threshold. The current limitation is obtained through a memory element connected to the current sensor and disabling the drive stage in the presence of the overload signal. In order to obtain a reliable operation, in the presence of the overload signal the drive stage is controlled at a switching frequency which is lower than the preset frequency of the timing clock signal.

摘要翻译： 具有电流限制的切换驱动装置即使具有高开关频率也可靠地运行，包括驱动级，在输入端接收预定频率的定时时钟信号，并在输出端产生与定时时钟信号同步的驱动信号，功率元件 连接到驱动级的输入端，从其接收驱动信号并产生负载供给信号，由功率元件馈送的负载，以及当负载中的电流达到预设阈值时产生过载信号的电流传感器。 通过连接到电流传感器的存储元件获得电流限制，并且在存在过载信号的情况下禁用驱动级。 为了获得可靠的操作，在存在过载信号的情况下，驱动级被控制在低于定时时钟信号的预设频率的开关频率。