公开(公告)号：US07161813B2

公开(公告)日：2007-01-09

申请号：US11019927

申请日：2004-12-21

Applicant: Fabrizio Librizzi ,  Francesco Macina

Inventor： Fabrizio Librizzi ,  Francesco Macina

IPC: H02M3/335

CPC classification number: H02M1/081 ,  H02M1/32 ,  H02M3/33592 ,  Y02B70/1475

Abstract: A power conversion device includes a first and second input terminal for connection to a transformer winding and at least an output terminal. A first and second synchronous rectifier are associated with the first and second input terminals, respectively. An inductor within an output stage is connected between the first input terminal and the output terminal. A driving circuit includes first and second output terminals connected to respective control terminals of the first and second synchronous rectifiers. An adjustable threshold control block is connected between the first and second input terminals and is connected to the inductor. The control block is enabled responsive to a control signal on the first output terminal of the driving circuit. The control block operates to clamp the voltage of the first input terminal to a preset value during at least a dead time period of the device operation.

Abstract translation: 电力转换装置包括用于连接到变压器绕组和至少输出端子的第一和第二输入端子。 第一和第二同步整流器分别与第一和第二输入端相关联。 输出级内的电感器连接在第一输入端和输出端之间。 驱动电路包括连接到第一和第二同步整流器的相应控制端的第一和第二输出端。 可调阈值控制块连接在第一和第二输入端之间，并连接到电感器。 控制块响应于驱动电路的第一输出端上的控制信号使能。 控制块用于在设备操作的至少死区时间段期间将第一输入端子的电压钳位到预设值。

公开(公告)号：US20050141250A1

公开(公告)日：2005-06-30

申请号：US11019927

申请日：2004-12-21

Applicant: Fabrizio Librizzi ,  Francesco Macina

Inventor： Fabrizio Librizzi ,  Francesco Macina

IPC: H02M1/00 ,  H02M1/08 ,  H02M3/335

CPC classification number: H02M1/081 ,  H02M1/32 ,  H02M3/33592 ,  Y02B70/1475

Abstract: A power conversion device includes a first and second input terminal for connection to a transformer winding and at least an output terminal. A first and second synchronous rectifier are associated with the first and second input terminals, respectively. An inductor within an output stage is connected between the first input terminal and the output terminal. A driving circuit includes first and second output terminals connected to respective control terminals of the first and second synchronous rectifiers. An adjustable threshold control block is connected between the first and second input terminals and is connected to the inductor. The control block is enabled responsive to a control signal on the first output terminal of the driving circuit. The control block operates to clamp the voltage of the first input terminal to a preset value during at least a dead time period of the device operation.

Abstract translation: 电力转换装置包括用于连接到变压器绕组和至少输出端子的第一和第二输入端子。 第一和第二同步整流器分别与第一和第二输入端相关联。 输出级内的电感器连接在第一输入端和输出端之间。 驱动电路包括连接到第一和第二同步整流器的相应控制端的第一和第二输出端。 可调阈值控制块连接在第一和第二输入端之间，并连接到电感器。 控制块响应于驱动电路的第一输出端上的控制信号使能。 控制块用于在设备操作的至少死区时间段期间将第一输入端子的电压钳位到预设值。

公开(公告)号：US06885176B2

公开(公告)日：2005-04-26

申请号：US10601008

申请日：2003-06-20

Applicant: Fabrizio Librizzi

Inventor： Fabrizio Librizzi

IPC: H02M3/335 ,  G05F1/56

CPC classification number: H02M3/33561

Abstract: A multi-output switching power supply may include a PWM regulator circuit arranged in cascade upstream of each output to receive, as an input, a square wave voltage signal with a predetermined duty cycle. The regulator circuit may include an auxiliary switching device for modulating the duty cycle of the input signal to supply, as an output, a regulated direct current voltage. A control circuit for the PWM regulator circuit may include a detector circuit for detecting the trailing edges of the voltage signal input to the regulator circuit which emits a pulse coinciding with each of the trailing edges. The control circuit may also include a ramp signal generator that is controlled by the emitted pulses. The ramp signal generator may be connected to the non-inverting input of a comparator having an inverting input for receiving a signal indicative of the error in the regulator output voltage.

Abstract translation: 多输出开关电源可以包括布置在每个输出的上游的PWM调节器电路，以接收具有预定占空比的方波电压信号作为输入。 调节器电路可以包括用于调制输入信号的占空比的辅助开关装置，以提供调节的直流电压作为输出。 用于PWM调节器电路的控制电路可以包括检测器电路，用于检测输入到调节器电路的电压信号的后沿，其发射与每个后沿重合的脉冲。 控制电路还可以包括由所发射的脉冲控制的斜坡信号发生器。 斜坡信号发生器可以连接到具有用于接收指示调节器输出电压中的误差的信号的反相输入的比较器的非反相输入端。

公开(公告)号：US08793087B2

公开(公告)日：2014-07-29

申请号：US13238238

申请日：2011-09-21

Applicant: Fabrizio Librizzi

Inventor： Fabrizio Librizzi

IPC: G01R31/36 ,  H02J7/00

CPC classification number: H02J7/0021 ,  G01R31/3658 ,  H02J7/0014

Abstract: A modular device having at least one master integrated circuit, and one or more slave integrated circuit modules coupled to the at least one master integrated circuit with each slave integrated circuit module of the one or more slave integrated circuit modules coupled to and associated with only a single cell of the battery. Each slave integrated circuit module of the one or more slave integrated circuit modules further comprises: detection circuitry adapted to detect data comprising one or more of the temperature, voltage or charge status, and malfunctioning of the single cell associated with and monitored by the slave integrated circuit; and an interface operable to send said detected data to the at least one master integrated circuit. The at least one master integrated circuit is adapted to send commands to a slave integrated circuit module in response to the detected data detected by the slave integrated circuit module.

Abstract translation: 一种模块化装置，具有至少一个主集成电路，以及耦合到所述至少一个主集成电路的一个或多个从属集成电路模块，所述至少一个主集成电路与所述一个或多个从集成电路模块的每个从属集成电路模块耦合并仅与一个 电池单电池。 所述一个或多个从属集成电路模块的每个从属集成电路模块进一步包括：检测电路，其适于检测包括与由所述从属集成的从属集成电路相关联并由其监视的所述单个小区中的一个或多个的温度，电压或充电状态的故障 电路 以及可操作以将所述检测到的数据发送到所述至少一个主集成电路的接口。 所述至少一个主集成电路适于响应于从属集成电路模块检测到的检测数据向副集成电路模块发送命令。

公开(公告)号：US20120089352A1

公开(公告)日：2012-04-12

申请号：US13238238

申请日：2011-09-21

Applicant: Fabrizio Librizzi

Inventor： Fabrizio Librizzi

IPC: G01R31/36

CPC classification number: H02J7/0021 ,  G01R31/3658 ,  H02J7/0014

Abstract: A modular device having at least one master integrated circuit, and one or more slave integrated circuit modules coupled to the at least one master integrated circuit with each slave integrated circuit module of the one or more slave integrated circuit modules coupled to and associated with only a single cell of the battery. Each slave integrated circuit module of the one or more slave integrated circuit modules further comprises: detection circuitry adapted to detect data comprising one or more of the temperature, voltage or charge status, and malfunctioning of the single cell associated with and monitored by the slave integrated circuit; and an interface operable to send said detected data to the at least one master integrated circuit. The at least one master integrated circuit is adapted to send commands to a slave integrated circuit module in response to the detected data detected by the slave integrated circuit module.

Abstract translation: 一种模块化装置，具有至少一个主集成电路，以及耦合到所述至少一个主集成电路的一个或多个从属集成电路模块，所述至少一个主集成电路与所述一个或多个从集成电路模块的每个从属集成电路模块耦合并仅与一个 电池单电池。 所述一个或多个从属集成电路模块的每个从属集成电路模块进一步包括：检测电路，其适于检测包括与所述从属集成的相关联并由其监视的所述单个小区中的一个或多个的温度，电压或充电状态以及故障的数据 电路 以及可操作以将所述检测到的数据发送到所述至少一个主集成电路的接口。 所述至少一个主集成电路适于响应于从属集成电路模块检测到的检测数据向副集成电路模块发送命令。

公开(公告)号：US20060208719A1

公开(公告)日：2006-09-21

申请号：US11360003

申请日：2006-02-22

Applicant: Fabrizio Librizzi

Inventor： Fabrizio Librizzi

IPC: G05F1/00

CPC classification number: H02M3/33561 ,  H02M3/33576

Abstract: A control circuit for a pulsed width modulation controller includes a main controlled switch to selectively block an energization signal from a switched mode power supply and a free-wheeling synchronous switch for selectively transferring the energization signal as an output signal. The controller also includes a control circuit that includes: a PWM module having an input terminal, for connection with the switched mode power supply, and a PWM comparator; a drive circuit for the main controlled switch controlled by the PWM comparator; a low-side drive circuit for the free-wheeling synchronous switch controlled by the PWM comparator; and a ramp generator having a synchronization terminal connected to the power supply and a comparator sensing the signal on the synchronization terminal. The ramp signal from the ramp generator defines the threshold of the PWM comparator to thereby control operation of the drive circuits.

Abstract translation: 用于脉冲宽度调制控制器的控制电路包括主控制开关，用于选择性地阻断来自开关模式电源的通电信号和用于选择性地传送通电信号作为输出信号的续流同步开关。 控制器还包括一个控制电路，它包括：具有用于与开关模式电源连接的输入端的PWM模块和一个PWM比较器; 由PWM比较器控制的主控开关的驱动电路; 用于由PWM比较器控制的续流同步开关的低侧驱动电路; 以及具有连接到电源的同步端子和感测同步端子上的信号的比较器的斜坡发生器。 来自斜坡发生器的斜坡信号定义PWM比较器的阈值，从而控制驱动电路的操作。

公开(公告)号：US07397290B2

公开(公告)日：2008-07-08

申请号：US11383070

申请日：2006-05-12

Applicant: Fabrizio Librizzi ,  Franco Lentini

Inventor： Fabrizio Librizzi ,  Franco Lentini

IPC: H03K3/017 ,  H03K7/08

CPC classification number: H02M3/33592 ,  Y02B70/1475

Abstract: A control voltage for a synchronous rectifying transistor is generated with the desired anticipation time. The anticipation time is continuously controlled with a closed-loop technique by comparing it with the duration of a reference pulse. The resulting error signal is processed and provides the necessary correction to the MOSFET gate signal to equalize the actual anticipation time to the duration of the reference pulse.

Abstract translation: 产生具有期望的预期时间的同步整流晶体管的控制电压。 通过将其与参考脉冲的持续时间进行比较，通过闭环技术连续控制预期时间。 所产生的误差信号被处理，并向MOSFET栅极信号提供必要的校正，以将实际预期时间与参考脉冲的持续时间相等。

公开(公告)号：US20060256597A1

公开(公告)日：2006-11-16

申请号：US11383070

申请日：2006-05-12

Applicant: Fabrizio Librizzi ,  Franco Lentini

Inventor： Fabrizio Librizzi ,  Franco Lentini

IPC: H02M7/00

CPC classification number: H02M3/33592 ,  Y02B70/1475

Abstract: A control voltage for a synchronous rectifying transistor is generated with the desired anticipation time. The anticipation time is continuously controlled with a closed-loop technique by comparing it with the duration of a reference pulse. The resulting error signal is processed and provides the necessary correction to the MOSFET gate signal to equalize the actual anticipation time to the duration of the reference pulse.

Abstract translation: 产生具有期望的预期时间的同步整流晶体管的控制电压。 通过将其与参考脉冲的持续时间进行比较，通过闭环技术连续控制预期时间。 所产生的误差信号被处理，并向MOSFET栅极信号提供必要的校正，以将实际预期时间与参考脉冲的持续时间相等。

公开(公告)号：US06614131B2

公开(公告)日：2003-09-02

申请号：US10055006

申请日：2002-01-22

Applicant: Franco Lentini ,  Fabrizio Librizzi

Inventor： Franco Lentini ,  Fabrizio Librizzi

IPC: H02J100

CPC classification number: H02M3/33561 ,  Y10T307/469

Abstract: A switched mode power supply having a first circuit provided with a primary winding of a transformer to which a pulse voltage is applied, a second circuit having a secondary winding of the transformer, a reactor provided with a magnetic core and which has a terminal connected to a terminal of the secondary winding, at least one filter provided with input and output terminals and a first diode connected in parallel to the input terminals of the filter is shown. The other terminal of the reactor is connected to a terminal of the first diode. The power supply includes a second diode that has a first terminal connected to the other terminal of the first diode and a second terminal connected to the other terminal of the secondary winding and a control circuit coupled to an output terminal of the filter and to the other terminal of the secondary winding. The control circuit generates a current able to reset the magnetic core of the reactor.

Abstract translation: 一种开关模式电源，其具有设置有施加脉冲电压的变压器的初级绕组的第一电路，具有变压器次级绕组的第二电路，设置有磁芯的电抗器， 示出了次级绕组的端子，设置有输入和输出端子的至少一个滤波器和与滤波器的输入端子并联连接的第一二极管。 电抗器的另一端连接到第一二极管的端子。 电源包括第二二极管，其具有连接到第一二极管的另一个端子的第一端子和连接到次级绕组的另一端子的第二端子，以及耦合到滤波器的输出端子和另一端子的控制电路 端子的次级绕组。 控制电路产生能够复位反应堆的磁芯的电流。

公开(公告)号：US06418039B2

公开(公告)日：2002-07-09

申请号：US09832315

申请日：2001-04-09

Applicant: Franco Lentini ,  Fabrizio Librizzi ,  Pietro Scalia ,  Ignazio Cala'

Inventor： Franco Lentini ,  Fabrizio Librizzi ,  Pietro Scalia ,  Ignazio Cala'

IPC: H02M3335

CPC classification number: H02M3/33592 ,  Y02B70/1475

Abstract: Presented is a circuit and method capable to digitally control and, in particular, to control the switching of one or two MOSFETs used as rectifiers in switched mode power supply isolated topologies. Basic circuit implementation of the presented technique is also introduced. A controller has a fixed frequency square wave signal main clock input, generically switching from a low to a high value in two different time intervals. The controller has one or two square wave outputs, swinging from low to high in phase or in opposite with respect to the clock signal. The digital control method is able to generate output signals timed to anticipate output transitions from high to low level with respect to the clock signal transitions. In the control scheme, one or two other secondary inputs set the amount of anticipation time of the respective transitions of the outputs. In isolated SMPS topologies with the PWM controller located on the primary side, the clock signal is derived from the secondary output of the isolation transformer, while the outputs are meant to drive one or two MOSFET gates. The method is able to provide the proper gate drive signals, solving all the known problems in controlling synchronous rectification.

Abstract translation: 提出了一种能够进行数字控制的电路和方法，特别是控制在开关模式电源隔离拓扑中用作整流器的一个或两个MOSFET的开关。 还介绍了所提出技术的基本电路实现。 控制器具有固定频率方波信号主时钟输入，通常在两个不同的时间间隔内从低值切换到高值。 该控制器具有一个或两个方波输出，从低电平相位相对于时钟信号相反或相反摆动。 数字控制方法能够产生定时的输出信号，以预测相对于时钟信号转换的从高电平到低电平的输出转换。 在控制方案中，一个或两个其他辅助输入设置输出的各个转换的预期时间量。 在具有位于初级侧的PWM控制器的隔离SMPS拓扑中，时钟信号源自隔离变压器的次级输出，而输出则用于驱动一个或两个MOSFET栅极。 该方法能够提供合适的门驱动信号，解决控制同步整流的所有已知问题。