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1. 发明授权

US06603291B2 Integrated FET and driver for use in a synchronous dc-dc conversion circuit 有权
标题翻译：集成FET和驱动器，用于同步直流 - 直流转换电路
公开(公告)号：US06603291B2
公开(公告)日：2003-08-05
申请号：US10066991
申请日：2002-02-04
申请人： Nicolas J. Wheeler , Leonardus A. De Groot , Philip Rutter
发明人： Nicolas J. Wheeler , Leonardus A. De Groot , Philip Rutter
IPC分类号： G05F1613
CPC分类号： H02M1/088 , H01L24/48 , H01L24/49 , H01L2224/0603 , H01L2224/48137 , H01L2224/48139 , H01L2224/48247 , H01L2224/48257 , H01L2224/4903 , H01L2224/49113 , H01L2924/00014 , H01L2924/1306 , H01L2924/13091 , H01L2924/30107 , H02M3/1588 , H02M3/28 , H03K17/0822 , H03K17/165 , H03K17/6871 , H03K2217/0036 , Y02B70/1466 , H01L2924/00 , H01L2224/45099 , H01L2224/05599
摘要： An integrated driver circuit includes a low side component and a synchronous dc voltage converter circuit. A sync FET (8) is controlled by a driver (32) powered between high and low voltage power connections (134, 138). A timing circuit (150) controls the driver circuit in accordance with a signal on a control input. The driver circuit (32) is isolated from the timing circuit (150), for example by a level shift circuit (136) and the low voltage power connection (138) of the driver circuit is directly connected to the source (108) of the sync FET (8). This arrangement is intended to reduce transient voltage effects.
摘要翻译：集成的驱动电路包括低侧分量和同步直流电压转换器电路。同步FET（8）由在高压和低压电力连接（134,138）之间供电的驱动器（32）控制。定时电路（150）根据控制输入端的信号控制驱动电路。驱动器电路（32）例如由电平移位电路（136）与定时电路（150）隔离，并且驱动电路的低压电源连接（138）直接连接到驱动电路的源极（108）同步FET（8）。这种安排旨在减少瞬态电压的影响。

2. 发明授权

US06674268B2 Swithing regulator utilizing seperate integrated circuits for driving each switch 有权
标题翻译：开关稳压器采用单独的集成电路驱动每个开关
公开(公告)号：US06674268B2
公开(公告)日：2004-01-06
申请号：US10071396
申请日：2002-02-06
申请人： Philip Rutter , Leonardus A. De Groot , Nicolas J. Wheeler
发明人： Philip Rutter , Leonardus A. De Groot , Nicolas J. Wheeler
IPC分类号： G05F316
CPC分类号： H03K17/6871 , H02M1/08 , H02M1/38 , H02M3/1588 , H03K17/0822 , H03K17/165 , H03K2217/0036 , H03K2217/0081 , Y02B70/1466
摘要： A switching circuit for switching an input dc voltage of predetermined polarity is used, for example, for a synchronous dc-dc converter. The switching circuit is divided between a high side package (52) and a low side package (56) each having a logic input (90) and a switch (6,8) connected between switching outputs (84,86). The switching outputs (84,86) of the high and low side packages (52,56) are connected in series between input voltage terminals (4,2). A pulse width modulator (18) is connected to the logic inputs (90) of the packages for supplying an alternating control signal for switching the high and low side switches (6,8) alternately. Each of the high and low side packages (52,56) contains logic circuitry (150) for controlling the respective switch (6,8) based solely on the voltages on the respective logic input (90) and respective switching outputs (84,86) to prevent the switches (6,8) in the high and low side packages (52,56) from conducting at the same time. The logic circuitry (150) may use a predetermined delay or incorporate sense circuitry that switches based on the voltage on the outputs. In this way, the need for control interconnections between the high and low side packages (52,56) is avoided.
摘要翻译：用于切换预定极性的输入直流电压的开关电路例如用于同步dc-dc转换器。切换电路被分为高侧封装（52）和低侧封装（56），每个封装具有连接在开关输出（84,86）之间的逻辑输入（90）和开关（6,8）。高低侧封装（52,56）的开关输出（84,86）串联连接在输入电压端子（4,2）之间。脉冲宽度调制器（18）连接到封装的逻辑输入（90），用于提供用于交替切换高低侧开关（6,8）的交替控制信号。高和低侧封装（52,56）中的每一个包含逻辑电路（150），用于仅基于相应的逻辑输入（90）和相应的开关输出（84,86）上的电压来控制相应的开关（6,8））以防止高低侧封装（52,56）中的开关（6,8）同时导通。逻辑电路（150）可以使用预定的延迟或者包括基于输出上的电压来切换的感测电路。以这种方式，避免了在高低侧封装（52,56）之间的控制互连的需要。

3. 发明授权

US06175225B1 Switching arrangement and switch component for a DC-DC converter 有权
标题翻译： DC-DC转换器的开关装置和开关元件
公开(公告)号：US06175225B1
公开(公告)日：2001-01-16
申请号：US09606340
申请日：2000-06-29
申请人： Leonardus A. De Groot
发明人： Leonardus A. De Groot
IPC分类号： G05F156
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A dc—dc converter comprises first (5) and second (6) transistor switches connected in series between a dc input (1) and ground (4). The converter includes an inductor connecting the junction (8) of the two switches to a dc output and also a capacitor connecting the dc output to ground. The switches are closed alternately in response to a switching signal applied to a switching signal input (3), thereby alternately charging the capacitor from the dc input through the first switch and the inductor and discharging the energy stored in the inductor into the capacitor via the second switch. The coupling (12) from the switching signal input to the control input (25) of the second switch is provided with a threshold-responsive disable signal input (13) which is connected to the junction (8) between the two switches, for preventing the second switch from being controlled to a closed state at any time that the voltage on the junction is above a predetermined threshold. This threshold is set to be substantially zero by means of a comparator (28). Thus the second switch is prevented from being closed both when the first switch is conducting and also should the capacitor attempt to discharge through it. The latter would otherwise occur should the converter enter sleep mode, when the switching signal would be absent.
摘要翻译： DC-DC转换器包括串联连接在dc输入（1）和地（4）之间的第一（5）和第二（6）晶体管开关。该转换器包括将两个开关的结（8）连接到直流输出的电感器，以及将直流输出连接到地的电容器。响应于施加到开关信号输入（3）的开关信号，开关交替闭合，从而通过第一开关和电感器交替地从直流输入充电电容器，并且经由电感器将存储在电感器中的能量放电到电容器中第二个开关来自切换信号的耦合（12）输入到第二开关的控制输入端（25）设置有阈值响应禁用信号输入（13），其连接到两个开关之间的接点（8），以防止在结点处的电压高于预定阈值的任何时间，第二开关从被控制到关闭状态。通过比较器（28）将该阈值设置为基本为零。因此，当第一开关导通时也防止第二开关闭合，并且还应该使电容器尝试通过其放电。如果切换信号不存在，则转换器进入睡眠模式时会发生后者。

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