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61. 发明授权

US07772822B2 Power supply apparatus 有权
标题翻译：电源设备
公开(公告)号：US07772822B2
公开(公告)日：2010-08-10
申请号：US12041817
申请日：2008-03-04
申请人： Yoshihito Kawakami , Junji Ishiyama
发明人： Yoshihito Kawakami , Junji Ishiyama
IPC分类号： G05F1/618
CPC分类号： H02M1/36 , H02M1/32 , H02M3/156 , H02M2001/0025
摘要： A power supply apparatus having a soft start function that enables a startup without any overshoot within an appropriate startup time regardless of whether the load is heavy or light. Even when output direct current voltage Vo has not yet risen upon startup, switch circuit (4) is turned ON within a count time of timer (7), and clamping circuit (5) clamps error signal (Ve) of error amplifier (2), so that an excessive signal is prevented from entering PWM circuit (6), and electric power supplied to load (13) is controlled. Consequently, supply power as the power supply apparatus is limited, and any inrush current can be prevented from being generated. By controlling the count time of timer (7) when this error signal is clamped, it is possible to realize a startup within an appropriate startup time without any overshoot.
摘要翻译：一种具有软起动功能的电源装置，无论负载是重还是轻，都能在适当的启动时间内启动而没有任何过冲。即使在启动时输出直流电压Vo还没有上升，开关电路（4）在定时器（7）的计数时间内导通，钳位电路（5）钳位误差放大器（2）的误差信号（Ve），从而防止过多的信号进入PWM电路（6），并且控制供给负载（13）的电力。因此，作为供电装置的供电受到限制，可以防止产生任何浪涌电流。通过控制该错误信号被钳位的定时器（7）的计数时间，可以在适当的启动时间内实现启动，而没有任何过冲。

62. 发明申请

US20100194371A1 DC-DC CONVERTER AND SWITCHING CONTROL CIRCUIT 审中-公开
标题翻译： DC-DC转换器和开关控制电路
公开(公告)号：US20100194371A1
公开(公告)日：2010-08-05
申请号：US12693642
申请日：2010-01-26
申请人： Akira SATOU , Osamu Kawagoe
发明人： Akira SATOU , Osamu Kawagoe
IPC分类号： G05F1/618
CPC分类号： H02M3/1588 , H02M1/44 , H02M2001/0029 , Y02B70/1466
摘要： Disclosed a switching control circuit including: a first drive circuit to generate a drive signal for driving a driving switching element to flow current through an inductor for voltage conversion into on/off states; wherein the first drive circuit generates the drive signal so that a transition time of the drive signal in which the driving switching element shifts from an off state to an on state becomes longer than a transition time of the drive signal in which the driving switching element shifts from the on state to the off state.
摘要翻译：一种开关控制电路，包括：第一驱动电路，用于产生用于驱动驱动开关元件的驱动信号，以流过电感器以将电压转换成开/关状态; 其中第一驱动电路产生驱动信号，使得驱动开关元件从断开状态转换到导通状态的驱动信号的转变时间变得比驱动开关元件移位的驱动信号的转变时间长从状态到关闭状态。

63. 发明授权

US07759911B2 Switching regulator with reverse current detecting transistor 有权
标题翻译：开关稳压器带反向电流检测晶体管
公开(公告)号：US07759911B2
公开(公告)日：2010-07-20
申请号：US11911238
申请日：2006-04-18
申请人： Masaki Omi
发明人： Masaki Omi
IPC分类号： G05F1/618
CPC分类号： H02M3/1588 , H02M2001/0009 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： A switching regulator comprises a reverse current detecting transistor (P2) having a gate and a source between which a voltage across a synchronous-rectification transistor (P1) is applied. When the reverse current detecting transistor (P2) comes into an open or closed state (on-state) indicating detection of a reverse current during an on-period of the synchronous-rectification transistor (P1), the synchronous-rectification transistor (P1) is turned off even before the end of the on period.
摘要翻译：开关调节器包括具有栅极的反向电流检测晶体管（P2）和施加了同步整流晶体管（P1）两端的电压的源极。当反相电流检测晶体管（P2）在同步整流晶体管（P1）的导通周期期间进入表示检测到反向电流的开状态或闭合状态（导通状态）时，同步整流晶体管（P1）即使在结束之前也被关闭。

64. 发明授权

US07719247B2 DC/DC converter with improved stability 有权
标题翻译： DC / DC转换器具有改进的稳定性
公开(公告)号：US07719247B2
公开(公告)日：2010-05-18
申请号：US12240629
申请日：2008-09-29
申请人： Laszlo Lipcsei , Sorin Hornet
发明人： Laszlo Lipcsei , Sorin Hornet
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M1/143 , H02M3/1588 , Y02B70/1466
摘要： A DC/DC converter includes a switch, an inductor, a capacitor, a resistor, and a voltage divider. The switch is coupled to the input voltage. The inductor is used for coupling the first switch to an output node of the DC/DC converter so as to generate the output voltage at the output node. The capacitor is coupled to the output voltage. The resistor is coupled to the capacitor in series, and is coupled to ground. The voltage divider is coupled across the capacitor so as to reduce the zero frequency of the DC/DC converter.
摘要翻译： DC / DC转换器包括开关，电感器，电容器，电阻器和分压器。开关耦合到输入电压。电感用于将第一开关耦合到DC / DC转换器的输出节点，以在输出节点产生输出电压。电容器耦合到输出电压。电阻器串联耦合到电容器，并耦合到地。分压器耦合在电容器两端，以便降低DC / DC转换器的零频率。

65. 发明授权

US07679350B2 DC/DC voltage regulator with automatic current sensing selectability for linear and switch mode operation utilizing a single voltage reference 有权
标题翻译： DC / DC电压调节器，具有自动电流检测选择性，用于使用单个参考电压的线性和开关模式操作
公开(公告)号：US07679350B2
公开(公告)日：2010-03-16
申请号：US10587785
申请日：2004-02-05
申请人： Christopher T. Falvey , Andrew Wu
发明人： Christopher T. Falvey , Andrew Wu
IPC分类号： G05F1/618
CPC分类号： H02M3/158 , H02M2001/0009 , H02M2001/0045
摘要： A switch-mode DC/DC converter (101) and linear low drop out (LIDO) DC/DC regulator (105) are connected in parallel to drive a single load Both regulators share a common voltage reference, feedback network (103), input supply and output such that the regulated voltage is identical during each mode of operation. During heavy loads the switch-mode regulator (107) is in operation and the linear regulator is disabled for the highest efficiency possible. Conversely at light loads the linear regulator is in operation with the switch-mode regulator (107) disabled, also maximizing the efficiency. Each regulator senses load current (131) to automatically transition between the appropriate voltage regulators at fixed load current levels. The presented invention also includes a make before break transition scheme of the voltage regulators (103) to minimize the voltage transients.
摘要翻译：开关模式DC / DC转换器（101）和线性低压降（LIDO）DC / DC稳压器（105）并联连接以驱动单个负载。两个稳压器共享公共参考电压，反馈网络（103），输入供应和输出，使得在每个操作模式期间调节电压相同。在重负载期间，开关模式稳压器（107）处于工作状态，线性稳压器被禁用，以实现最高的效率。相反，轻负载时，线性稳压器在开关模式稳压器（107）禁用的情况下运行，同时也使效率最大化。每个调节器感测负载电流（131），以在固定负载电流水平下自适应在适当的电压调节器之间转换。本发明还包括电压调节器（103）的断开前转换方案以最小化电压瞬变。

66. 发明授权

US07642762B2 Current source with indirect load current signal extraction 有权
标题翻译：电流源采用间接负载电流信号提取
公开(公告)号：US07642762B2
公开(公告)日：2010-01-05
申请号：US11698874
申请日：2007-01-29
申请人： Manjing Xie , Jindong Zhang
发明人： Manjing Xie , Jindong Zhang
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H05B33/0848 , H02M3/156 , H05B33/0818 , Y02B20/347
摘要： A switching circuit for supplying current to a load has a switching element, an inductive element coupled to the switching element, and a load current extraction circuit responsive to current in the inductive element for producing a load current signal as a simulated current approximating current in the load.
摘要翻译：用于向负载提供电流的开关电路具有开关元件，耦合到开关元件的电感元件和响应于电感元件中的电流的负载电流提取电路，用于产生负载电流信号，作为模拟电流近似电流加载。

67. 发明授权

US07557554B2 Voltage/current control apparatus and method 有权
标题翻译：电压/电流控制装置及方法
公开(公告)号：US07557554B2
公开(公告)日：2009-07-07
申请号：US11861154
申请日：2007-09-25
申请人： Yu Cheng Chang
发明人： Yu Cheng Chang
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M3/1588 , H02M3/157 , Y02B70/1466
摘要： A voltage/current control apparatus and method are disclosed. The apparatus includes a low-side field effect transistor (FET) having a source, a gate and a drain, a high-side field effect transistor (FET) having a source, a gate and a drain, a gate driver integrated circuit (IC), a sample and hold circuit, and a comparator configured to produce a trigger signal at the output when a sum of the first and second input signals is equal to a sum of the third and fourth input signals, wherein the trigger signal is configured to trigger a beginning of a new cycle by turning the gate of the high-side FET “on” and the gate of the low-side FET “off”.
摘要翻译：公开了电压/电流控制装置和方法。该装置包括具有源极，栅极和漏极的低侧场效应晶体管（FET），具有源极，栅极和漏极的高侧场效应晶体管（FET），栅极驱动器集成电路（IC ），采样保持电路和比较器，被配置为当第一和第二输入信号的和等于第三和第四输入信号的和时在输出端产生触发信号，其中触发信号被配置为通过使高侧FET的栅极“开”并且低边FET的栅极“关闭”来触发新周期的开始。

68. 发明授权

US07557545B2 Electric power unit operating in continuous and discontinuous conduction modes and control method therefor 失效
标题翻译：电力单元在连续和不连续导通模式下工作及其控制方法
公开(公告)号：US07557545B2
公开(公告)日：2009-07-07
申请号：US11485466
申请日：2006-07-13
申请人： Toshiyuki Naka , Akio Nakagawa , Kazutoshi Nakamura
发明人： Toshiyuki Naka , Akio Nakagawa , Kazutoshi Nakamura
IPC分类号： G05F1/618
CPC分类号： H02M3/157 , H02M3/1588 , Y02B70/1466
摘要： An electronic power unit includes first and second MOS transistors and a digital control circuit. The first MOS transistor applies a voltage to the load. The second MOS transistor remains on while the first MOS transistor remains off and rectifies the current flowing in the load. The digital control circuit turns on the first transistor upon lapse of a first time interval from the time the second MOS transistor is turned off. The digital control circuit turns on the second MOS transistor upon lapse of a second time interval from the time the first MOS transistor is turned off. The digital control circuit controls the on-period of the first MOS transistor so that the voltage applied to the load is constant in a discontinuous conduction mode. The digital control circuit determines, while the voltage applied to the load is constant, an optimal value of the first time from the duty.
摘要翻译：电子功率单元包括第一和第二MOS晶体管和数字控制电路。第一个MOS晶体管向负载施加电压。第二MOS晶体管保持导通，而第一MOS晶体管保持关断并且对负载中流动的电流进行整流。数字控制电路在从第二MOS晶体管截止时起第一时间间隔开启第一晶体管。数字控制电路在从第一MOS晶体管截止时经过第二时间间隔开启第二MOS晶体管。数字控制电路控制第一MOS晶体管的导通周期，使得施加到负载的电压在不连续导通模式下是恒定的。数字控制电路在施加到负载的电压是恒定的情况下确定第一次从占空比的最佳值。

69. 发明授权

US07548048B2 Switching mode power supply and method for determining a compensation factor thereof 有权
标题翻译：开关电源及确定其补偿系数的方法
公开(公告)号：US07548048B2
公开(公告)日：2009-06-16
申请号：US11892994
申请日：2007-08-29
申请人： Wei-Hsu Chang
发明人： Wei-Hsu Chang
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M3/157
摘要： A switching mode power supply is configured to have two modes, a normal mode and a measure mode. To determine a compensation factor to compensate the switching mode power supply in the normal mode, the switching mode power supply is switched to the measure mode to measure a frequency response of the switching mode power supply, by which the switching mode power supply is accurately compensated and optimized.
摘要翻译：开关模式电源被配置为具有正常模式和测量模式的两种模式。为了在正常模式下确定补偿开关模式电源的补偿因子，将开关模式电源切换到测量模式，以测量开关模式电源的频率响应，由此开关模式电源被精确补偿并优化。

70. 发明申请

US20090128113A1 POWER CONVERTER HAVING AUTO CONVERSION FUNCTION FOR PULSE SKIP MODE AND CONTROL METHOD 审中-公开
标题翻译：具有自动转换功能的电源转换器用于脉冲跳跃模式和控制方法
公开(公告)号：US20090128113A1
公开(公告)日：2009-05-21
申请号：US12270078
申请日：2008-11-13
申请人： Ji-Yeoul RYOO
发明人： Ji-Yeoul RYOO
IPC分类号： G05F1/618
CPC分类号： G05F1/618 , H02M3/156 , H02M2001/0032 , Y02B70/16
摘要： A power converter having an auto conversion function for a pulse skip mode (PSM) and a related control method are provided. The power converter having an auto conversion function for a PSM and a control method thereof can provide a PSM capable of preventing unnecessary switching operations and, thus, improving the efficiency of the power converter by automatically switching to the PSM even when a load is small.
摘要翻译：提供了具有脉冲跳过模式（PSM）的自动转换功能的电力转换器和相关的控制方法。具有用于PSM的自动转换功能的电力转换器及其控制方法可以提供能够防止不必要的开关操作的PSM，并且因此即使在负载较小时也通过自动切换到PSM来提高功率转换器的效率。

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