公开(公告)号：WO2011133252A3

公开(公告)日：2011-12-29

申请号：PCT/US2011027559

申请日：2011-03-08

Applicant: ASTEC INT LTD ,  MARKOWSKI PIOTR

Inventor： MARKOWSKI PIOTR

IPC: H02J3/26 ,  H02J3/38 ,  H02M7/48

CPC classification number: H02J1/102 ,  H02M3/1584

Abstract: A method of controlling a multiphase power converter including a plurality of sub-converters is disclosed. The method includes, for each of the sub-converters, estimating a current provided by that sub-converter. The method includes selecting one of the sub-converters that is on and determined to have a greatest current as the next sub-converter to be turned off and selecting one of the sub-converters that is off and determined to have a smallest current as the next sub-converter to be turned on. Other methods, multiphase power converters and controllers for multiphase power converters are also disclosed.

Abstract translation: 公开了一种控制包括多个子转换器的多相功率转换器的方法。 该方法包括对于每个子转换器估计由该子转换器提供的电流。 该方法包括选择接通并确定为具有最大电流的子转换器中的一个作为要关断的下一个子转换器，并选择关断并确定为具有最小电流的子转换器中的一个作为 下一个子转换器打开。 还公开了用于多相功率转换器的其他方法，多相功率转换器和控制器。

公开(公告)号：WO2008112041A3

公开(公告)日：2008-10-30

申请号：PCT/US2008000075

申请日：2008-01-04

Applicant: ASTEC INT LTD ,  MARKOWSKI PIOTR ,  WANG LIN GUO

Inventor： MARKOWSKI PIOTR ,  WANG LIN GUO

IPC: H03F1/02 ,  H02M3/158 ,  H03F1/32 ,  H03F3/19

CPC classification number: H03F1/0227 ,  H02M2001/0045 ,  H03F1/3247 ,  H03F3/19 ,  H03F3/217 ,  H03F2200/102 ,  H03F2200/432 ,  H03F2201/3233

Abstract: A circuit for use with a power amplifier that amplifies an input signal. The circuit may comprise an amplitude correction circuit and an open-loop switching regulator. The amplitude correction circuit may be configured to generate a corrected envelope signal from an input envelope signal that represents an envelope of the input signal. The open-loop switching regulator may be connected to the amplitude correction circuit and may be for powering the power amplifier based on the corrected envelope signal. According to various embodiments, the corrected envelope signal generated by the amplitude correction circuit is a function of the input envelope signal and an error voltage of the open-loop switching regulator.

Abstract translation: 用于放大输入信号的功率放大器的电路。 电路可以包括振幅校正电路和开环开关调节器。 振幅校正电路可以被配置为从表示输入信号的包络的输入包络信号产生校正包络信号。 开环开关调节器可以连接到幅度校正电路，并且可以用于基于校正的包络信号为功率放大器供电。 根据各种实施例，由幅度校正电路产生的校正包络信号是输入包络信号和开环开关调节器的误差电压的函数。

公开(公告)号：WO2012076953A3

公开(公告)日：2012-11-15

申请号：PCT/IB2011002921

申请日：2011-12-02

Applicant: ASTEC INT LTD ,  SOLENO ANTONIO R

Inventor： SOLENO ANTONIO R

IPC: H05B37/02

CPC classification number: H05B37/0263 ,  H05B33/0815 ,  H05B33/0845 ,  Y02B20/346

Abstract: A method of controlling a dimming level of one or more light emitting diodes ("LEDs") includes receiving a phase cut dimming signal having a pulse width and frequency, generating a PWM signal having a duty cycle and frequency corresponding to the pulse width and frequency, respectively, of the phase cut dimming signal, and controlling a power converter coupled to the one or more LEDs with the generated PWM signal so that the dimming level of the one or more LEDs is a function of the duty cycle of the generated PWM signal. Example circuits for practicing this method and alternative methods are also disclosed.

Abstract translation: 控制一个或多个发光二极管（“LED”）的调光电平的方法包括接收具有脉冲宽度和频率的相位调光信号，产生具有对应于脉冲宽度和频率的占空比和频率的PWM信号 ，并且利用所生成的PWM信号来控制耦合到所述一个或多个LED的功率转换器，使得所述一个或多个LED的调光电平是所产生的PWM信号的占空比的函数 。 还公开了用于实施该方法和替代方法的示例电路。

公开(公告)号：WO2012027681A3

公开(公告)日：2012-04-19

申请号：PCT/US2011049370

申请日：2011-08-26

Applicant: ASTEC INT LTD ,  KIPPLEY ROBERT H

Inventor： KIPPLEY ROBERT H

IPC: H02M3/28

CPC classification number: H02M3/33507 ,  H02M1/36 ,  H02M2001/0032 ,  Y02B70/16

Abstract: Power supplies, power adapters, and related methods are disclosed. One example power supply includes an open loop DC to DC converter having an input for connecting to an input power source and an output for supplying a DC output voltage or current and an enable/disable circuit coupled to the open loop DC to DC converter. The enable/disable circuit is configured to enable and disable the open loop DC to DC converter as a function of the DC output voltage or current. One example method includes determining a DC output voltage or current from an open loop DC to DC converter and enabling and disabling the open loop DC to DC converter as a function of the determined DC output voltage or current.

Abstract translation: 披露了电源，电源适配器和相关方法。 一个示例电源包括具有用于连接到输入电源的输入和用于提供DC输出电压或电流的输出的开环DC到DC转换器以及耦合到开环DC到DC转换器的启用/禁用电路。 启用/禁用电路被配置为根据DC输出电压或电流启用和禁用开环DC-DC转换器。 一个示例方法包括确定来自开环直流到直流转换器的直流输出电压或电流，并根据确定的直流输出电压或电流来启用和禁用开环直流到直流转换器。

公开(公告)号：WO2011039582A3

公开(公告)日：2011-07-28

申请号：PCT/IB2010002078

申请日：2010-08-25

Applicant: ASTEC INT LTD ,  CHENG WO OI ,  GRUESO ALFREDO

Inventor： CHENG WO OI ,  GRUESO ALFREDO

IPC: H01F19/04 ,  H01F1/34

CPC classification number: H01F1/37 ,  H01F1/344 ,  H01F27/263 ,  H01F38/42 ,  H01F2038/426 ,  Y10T29/49073

Abstract: A cost effective integrated automotive solution for a charger transformer with minimized fringing flux and core grounding for reducing electromagnetic interference (EMI). The method provides an air gap filled with a mixture of an adhesive and ferrite powder that bonds the ferrite core sections together. In addition, the ground pin of the transformer is exposed through a groove in the pocket of the bobbin on which the core is mounted and an electrical contact is established between the exposed end of the ground pin and the core surface by means of a drop of epoxy.

Abstract translation: 用于充电器变压器的成本效益高的集成汽车解决方案，具有最小化的通量和磁芯接地，以减少电磁干扰（EMI）。 该方法提供填充有铁氧体磁芯部分粘合在一起的粘合剂和铁氧体粉末的混合物的气隙。 此外，变压器的接地引脚通过其上安装有芯的线轴的凹槽中的凹槽露出，并且通过一滴接地引脚与芯体表面的暴露端之间建立电接触 环氧树脂。

公开(公告)号：WO2008088924A3

公开(公告)日：2008-09-04

申请号：PCT/US2008000880

申请日：2008-01-22

Applicant: ASTEC INT LTD ,  POTTER GEOF ,  MAO HONG

Inventor： POTTER GEOF ,  MAO HONG

IPC: H01R12/00 ,  H05K1/00

CPC classification number: H02J1/08 ,  G06F1/26 ,  H02M2001/008 ,  Y10T307/305 ,  Y10T307/313 ,  Y10T307/32 ,  Y10T307/406 ,  Y10T307/675 ,  Y10T307/707

Abstract: A DC-DC switching cell module configured for attachment to a circuit board as a discrete component, includes a switch, a rectifier, an output filter coupled to the rectifier, and an input port for receiving an external PWM control signal from a controller to generate a DC output voltage from a DC input voltage in response to the said external PWM control signal. The said controller is configured for controlling a plurality of said DC-DC switching cells to sample the plurality of said output voltages via a multiplexer and generate each individual PWM control signal to individually regulate each of the said output voltages from each of said plurality of switching cells.

Abstract translation: 配置为作为分立部件附接到电路板的DC-DC开关单元模块包括开关，整流器，耦合到整流器的输出滤波器和用于从控制器接收外部PWM控制信号以产生 来自DC输入电压的DC输出电压响应于所述外部PWM控制信号。 所述控制器被配置为用于控制多个所述DC-DC开关单元以经由多路复用器对多个所述输出电压进行采样，并且生成每个单独的PWM控制信号，以从所述多个开关中的每一个分别调节所述输出电压 细胞。

公开(公告)号：WO2007129217A3

公开(公告)日：2008-01-17

申请号：PCT/IB2007001298

申请日：2007-05-10

Applicant: ASTEC INT LTD ,  KEVIN WILDASH

Inventor： KEVIN WILDASH

IPC: H02M1/00

CPC classification number: H02M1/4216 ,  H02M1/4225 ,  Y02B70/126

Abstract: A power converter (300) includes multiple phase circuits (302a-302c). each phase circuit include a power switch (Q3) for delivering power to an output of the power converter, a current sensor (T1) connected to the power switch for sensing a current in the power switch, a duty cycle controller (IC1 ) having an output connected to the current sensor, and a low pass filter (304) connected to the current sensor. The low pass filter is configured to produce a substantially direct current signal proportional t the average current in the power switch. The duty cycle controller is configured to receive the direct current signal and controls a duty cycle of the power switch in response to the direct current signal thereby balancing the currents in the phase circuits.

Abstract translation: 功率转换器（300）包括多相电路（302a-302c）。 每相电路包括用于向功率转换器的输出端输出功率的电源开关（Q3），连接到用于感测电力开关中的电流的电源开关的电流传感器（T1），具有 连接到电流传感器的输出端和连接到电流传感器的低通滤波器（304）。 低通滤波器被配置为产生与功率开关中的平均电流成比例的基本上直接的电流信号。 占空比控制器被配置为接收直流信号并且响应于直流信号控制功率开关的占空比，从而平衡相电路中的电流。

公开(公告)号：WO2007060506A2

公开(公告)日：2007-05-31

申请号：PCT/IB2006002871

申请日：2006-10-13

Applicant: ASTEC INT LTD ,  PHADKE VIJAY ,  SIGAMANI JAMES ,  BELTRAN ISRAEL

Inventor： PHADKE VIJAY ,  SIGAMANI JAMES ,  BELTRAN ISRAEL

IPC: H02J1/10

CPC classification number: H02M3/285

Abstract: A multiphase DC to DC converter includes an input, an output, at least first and second converters, an inductor, an output capacitor, and a drive circuit. The drive circuit is configured for switching the first and second converters with a predetermined phase shift therebetween. The output capacitor is operatively coupled between the first and second converters and the output. The inductor can be placed either at the input side or the output side. When placed at the input side, the inductor is operatively coupled between an input capacitor and the first and second converters. When placed at the output side, the inductor is operatively coupled between the first and second converters and the output capacitor. The multiphase DC to DC converter is capable of achieving lossless switching transitions and negligible ripple current in the output capacitor.

Abstract translation: 多相DC-DC转换器包括输入，输出，至少第一和第二转换器，电感器，输出电容器和驱动电路。 驱动电路被配置为以其间的预定相移来切换第一和第二转换器。 输出电容器可操作地耦合在第一和第二转换器和输出端之间。 电感可以放置在输入侧或输出侧。 当放置在输入侧时，电感器可操作地耦合在输入电容器和第一和第二转换器之间。 当放置在输出侧时，电感器可操作地耦合在第一和第二转换器和输出电容器之间。 多相DC到DC转换器能够实现输出电容器的无损开关转换和纹波电流可忽略。

公开(公告)号：WO2005015716A3

公开(公告)日：2007-01-18

申请号：PCT/IB2004003490

申请日：2004-08-06

Applicant: ASTEC INT LTD ,  PHADKE VIJAY ,  ASUNCION ARLAINDO ,  BELTRAN ISRAEL

Inventor： PHADKE VIJAY ,  ASUNCION ARLAINDO ,  BELTRAN ISRAEL

IPC: H02M3/335 ,  H02M20060101 ,  H02M1/34 ,  H02M3/337 ,  H02M7/00 ,  H02M7/5387

CPC classification number: H02M1/34 ,  H02M3/3376 ,  H02M2001/346 ,  Y02B70/1433 ,  Y02B70/1491

Abstract: A soft switched zero voltage transition full bridge converter (100) for reducing power loss at very light loads for zero voltage switching (ZVS) converters (100) operating at high frequency. The converter (100) has four switches in two switching legs each of two switches connected in series between two input voltage terminals, junction points of the legs being coupled to a primary winding of a transformer (TRF1), a secondary winding from which an output voltage of the converter (100) is derived by rectifying and filtering. A pair of capacitive voltage dividers (C1-C4) are connected between the input terminals, each formed by two small capacitors each having a parallel-connected diode (D1-D4). The output voltage is regulated by phase shift control of the switches. The capacitors are selected small enough for storing only enough energy to enable ZVS in conjunction with two resonant inductors (Lr1 , Lr2). The converter (300) enables reduced component size of the inductors and energy storage capacitors.

Abstract translation: 一种软开关零电压转换全桥转换器（100），用于在非常轻的负载下降低在高频工作的零电压开关（ZVS）转换器（100）的功率损耗。 转换器（100）具有两个开关支路中的四个开关，两个开关中的每个开关串联连接在两个输入电压端子之间，支脚的连接点耦合到变压器（TRF1）的初级绕组，次级绕组 通过整流和滤波导出转换器（100）的电压。 一对电容分压器（C1-C4）连接在输入端子之间，每个由两个小型电容器形成，每个小型电容器具有并联二极管（D1-D4）。 输出电压由开关的相移控制来调节。 选择的电容器足够小以仅存储足够的能量以使ZVS与两个谐振电感器（Lr1，Lr2）结合使用。 转换器（300）能够减小电感器和储能电容器的组件尺寸。

公开(公告)号：WO2005011097A3

公开(公告)日：2006-07-13

申请号：PCT/IB2004003520

申请日：2004-07-29

Applicant: ASTEC INT LTD ,  MABANTA SAMUEL ,  REYES DONNIFER ,  PONCE MIRASOL

Inventor： MABANTA SAMUEL ,  REYES DONNIFER ,  PONCE MIRASOL

IPC: H02M3/338 ,  H02M3/335 ,  H02P20060101

CPC classification number: H02M3/3385 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A circuit and corresponding method for reducing standby power and improving no-load to full-load regulation for ringing choke converters by maintaining a reduced duty cycle, with longer off time at no-load, while maintaining the output voltage swing closer to the full-load level. This reduced duty cycle prevents the output voltage from swinging high with respect to the full-load level, thereby providing good no-load and full-load output regulation in open feedback loop systems. The circuit and method provides very low no-load switching frequency and duty cycle by increasing the off time of the main switch through use of a turn off transistor driven by a zener diode, thereby maintaining conduction even with a very small control current and prolonging the off time of the main switch. The circuit and method achieves the benefits preferably using only less costly basic discrete converter components instead of more costly integrated circuits.

Abstract translation: 通过保持减小的占空比，在空载时间较长的同时保持输出电压摆幅更接近全频，从而降低待机功率并改善空载负载到满负载调节的电路和相应方法， 负载水平。 这种减小的占空比可以防止输出电压相对于满载电平摆动高电平，从而在开环反馈环路系统中提供良好的空载和全负载输出调节。 该电路和方法通过使用由齐纳二极管驱动的截止晶体管来增加主开关的关断时间，从而提供非常低的空载开关频率和占空比，从而即使在非常小的控制电流下也能够保持导通，并延长 主开关的关闭时间。 电路和方法优点仅使用较低成本的基本离散转换器部件而不是更昂贵的集成电路。