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51. 发明申请

US20110121750A1 Self-oscillating half-bridge drive device and light-emitting device 审中-公开
标题翻译：自振半桥驱动装置及发光装置
公开(公告)号：US20110121750A1
公开(公告)日：2011-05-26
申请号：US12946873
申请日：2010-11-16
申请人： Wei Chen , Yingxuan Lin , Dan Liu , Qingfeng Zhu
发明人： Wei Chen , Yingxuan Lin , Dan Liu , Qingfeng Zhu
IPC分类号： H05B41/282 , G05F1/618
CPC分类号： H02M7/5383
摘要： Various embodiments relate to a self-oscillating half-bridge drive device, which may include a half-bridge inverter circuit having a first primary switch and a second primary switch; and a pull-down unit. The pull-down unit may prevent the other of the primary switches from being turned on when one of the primary switches is in an on state so as to avoid turning on of both primary switches. In addition, various embodiments also relate to a light-emitting device having such a self-oscillating half-bridge drive device.
摘要翻译：各种实施例涉及自振荡半桥驱动装置，其可以包括具有第一主开关和第二主开关的半桥逆变器电路; 和一个下拉单元。当主开关之一处于导通状态时，下拉单元可以防止另一个主开关导通，以避免两个主开关导通。此外，各种实施例还涉及具有这种自振荡半桥驱动装置的发光装置。

52. 发明申请

US20110068763A1 DUTY FEED FORWARD METHOD AND APPARATUS FOR MODULATING A DUTY OF A PMW SIGNAL AND POWER CONVERTING METHOD AND POWER CONVERTER USING THE SAME 失效
标题翻译：用于调制PMW信号和功率转换方法和功率转换器的负载进给方法和装置
公开(公告)号：US20110068763A1
公开(公告)日：2011-03-24
申请号：US12960714
申请日：2010-12-06
申请人： TSAI-FU CHANG , LIANG-PIN TAI
发明人： TSAI-FU CHANG , LIANG-PIN TAI
IPC分类号： G05F1/618
CPC分类号： H03K7/08
摘要： The duty of a PWM signal in a power converter is extracted to feed forward to modulate the slope of a linear oscillating ramp signal or the voltage level of an error signal, so as to modulate the duty of the PWM signal, by which the transient response of the power converter and the stability of the PWM loop both are improved.
摘要翻译：提取功率转换器中的PWM信号的占空比以前馈以调制线性振荡斜坡信号的斜率或误差信号的电压电平，以便调制PWM信号的占空比，由此瞬态响应的功率转换器和PWM环路的稳定性都得到了改善。

53. 发明授权

US07893674B2 Switch mode power supply (SMPS) and methods thereof 有权
标题翻译：开关电源（SMPS）及其方法
公开(公告)号：US07893674B2
公开(公告)日：2011-02-22
申请号：US11862044
申请日：2007-09-26
申请人： Ken Tsz Kin Mok , Justin Joseph Rosen Gagne
发明人： Ken Tsz Kin Mok , Justin Joseph Rosen Gagne
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M3/157 , H02M2001/0019 , H02M2003/1566
摘要： Embodiments of the present invention are directed to switched-mode power supply (SMPS) circuits and methods thereof. The SMPS circuit receives information related to a future load change. For example, the information may be received at a decoder (e.g., a serial bus interface (SBI) decoder) from a microprocessor or microcontroller, such as a mobile station modem (MSM). The SMPS circuit may include an analog-to-digital converter configured to sample an output voltage of the SMPS circuit to determine a time when the future load change occurs. The SMPS circuit may further include a transient recovery circuit (TRC) for stabilizing the output voltage based on the received information when the future load change occurs. For example, the TRC calculates a duty cycle used to transition states of switches of the SMPS circuit to compensate for the future load change.
摘要翻译：本发明的实施例涉及开关电源（SMPS）电路及其方法。 SMPS电路接收与未来负载变化相关的信息。例如，可以在诸如移动台调制解调器（MSM）的微处理器或微控制器的解码器（例如，串行总线接口（SBI）解码器）处接收信息。 SMPS电路可以包括被配置为对SMPS电路的输出电压进行采样以确定发生未来负载变化的时间的模拟 - 数字转换器。 SMPS电路还可以包括瞬态恢复电路（TRC），用于在未来负载变化发生时基于所接收的信息稳定输出电压。例如，TRC计算用于转换SMPS电路的开关状态的占空比，以补偿未来的负载变化。

54. 发明授权

US07884586B2 Controlling a switching regulator mode determined by an ideal duty cycle for maintaining high efficiency for a wide input voltage range 有权
标题翻译：控制由理想占空比确定的开关稳压器模式，以在宽输入电压范围内保持高效率
公开(公告)号：US07884586B2
公开(公告)日：2011-02-08
申请号：US11836366
申请日：2007-08-09
申请人： Simone Fabbro
发明人： Simone Fabbro
IPC分类号： G05F1/618
CPC分类号： H02M3/1582 , H02M3/157
摘要： This disclosure relates to a voltage regulator system where duty cycle value of an input voltage is measured, where the input voltage is supplied to a regulator circuit that provides a regulated output voltage. Based on a calculated ideal duty cycle, which is derived from the measure duty cycle, a determination is made as to whether the regular circuit operational mode is to be changed to achieve greater efficiency.
摘要翻译：本公开涉及一种电压调节器系统，其中测量输入电压的占空比值，其中输入电压被提供给提供调节输出电压的调节器电路。基于从测量占空比导出的计算的理想占空比，确定是否要改变常规电路操作模式以实现更高的效率。

55. 发明授权

US07880450B2 Switching power supply, control circuit controlling switching power supply and control method of switching power supply 有权
标题翻译：开关电源，控制电路控制开关电源及开关电源的控制方式
公开(公告)号：US07880450B2
公开(公告)日：2011-02-01
申请号：US12777711
申请日：2010-05-11
申请人： Yu Yonezawa , Naoyuki Mishima
发明人： Yu Yonezawa , Naoyuki Mishima
IPC分类号： G05F1/613 , G05F1/618 , G05F1/24 , H02H7/122
CPC分类号： H02M3/158 , H02M3/156 , H02M2001/342 , Y02B70/1491
摘要： A switching power supply includes: a first switch provided between one end of a DC power supply and one end of a load; a second switch provided between a node of the first switch located on a load side and another end of the DC power supply; a capacitor provided between the second switch and the another end of the DC power supply; a third switch provided between a node of the first switch located on a DC power supply side and a node between the second switch and the capacitor; and a delay circuit that is provided between the third switch and the node between the second switch and the capacitor and delays a current for charging the capacitor, wherein the second switch is turned on in a period during which the first switch is kept on.
摘要翻译：开关电源包括：设置在直流电源的一端和负载的一端之间的第一开关; 设置在位于负载侧的第一开关的节点与直流电源的另一端之间的第二开关; 设置在所述第二开关和所述直流电源的另一端之间的电容器; 设置在位于直流电源侧的第一开关的节点与第二开关与电容器之间的节点之间的第三开关; 以及延迟电路，其设置在第三开关和第二开关与电容器之间的节点之间，并且延迟用于对电容器充电的电流，其中第二开关在第一开关保持导通的时段期间导通。

56. 发明申请

US20100270990A1 METHOD AND ARRANGEMENT FOR GENERATING CURRENT 有权
标题翻译：用于产生电流的方法和装置
公开(公告)号：US20100270990A1
公开(公告)日：2010-10-28
申请号：US12676274
申请日：2008-09-04
申请人： Seppo Ritamaki , Mika Sippola
发明人： Seppo Ritamaki , Mika Sippola
IPC分类号： G05F1/618
CPC分类号： H02M3/1584 , H02M7/42
摘要： The invention relates to power supplies where the output current is controllable. In prior art, there is a problem to provide both high rate of change in the current output and high efficiency. The solution of the present invention is based on combining current elements, whereby the current is controlled by switching the outputs of the current elements. The current elements can be implemented with e.g. buck converters, whereby the power dissipation is small.
摘要翻译：本发明涉及输出电流是可控的电源。在现有技术中，存在提供电流输出的高变化率和高效率的问题。本发明的解决方案基于组合电流元件，由此通过切换电流元件的输出来控制电流。当前元素可以用例如降压转换器，从而功耗小。

57. 发明授权

US07804283B2 Mode transitioning in a DC/DC converter using a constant duty cycle difference 有权
标题翻译：使用恒定占空比差异在DC / DC转换器中进行模式转换
公开(公告)号：US07804283B2
公开(公告)日：2010-09-28
申请号：US11838696
申请日：2007-08-14
申请人： Jan Krellner , Sanjaya Maniktala
发明人： Jan Krellner , Sanjaya Maniktala
IPC分类号： G05F1/618
CPC分类号： H02M3/1582
摘要： According to an exemplary embodiment, a method includes the step (910) of driving a buck section of a DC/DC converter with a buck signal that has a buck duty cycle and concurrently with driving the buck section, driving a boost section of the DC/DC converter with a boost signal that has a boost duty cycle, a difference existing between the buck duty cycle and the boost duty cycle. The method also includes the step (920) of monitoring an input voltage that is coupled to the buck section for a change in the input voltage, and in response to a change in the input voltage, the step (930) of changing the buck duty cycle and the boost duty cycle such that the difference between the buck duty cycle and the boost duty cycle is substantially constant.
摘要翻译：根据示例性实施例，一种方法包括：步骤（910），其利用具有降压占空比的降压信号驱动DC / DC转换器的降压部分，并与驱动降压部分同时驱动DC的升压部分 / DC转换器，具有升压占空比的升压信号，降压占空比与升压占空比之间存在差异。该方法还包括监测与输入电压变化相关联的输入电压的步骤（920），并且响应于输入电压的变化，改变降压负荷的步骤（930）周期和升压占空比，使得降压占空比与升压占空比之间的差异基本上是恒定的。

58. 发明授权

US07791327B2 Voltage converter 有权
标题翻译：电压转换器
公开(公告)号：US07791327B2
公开(公告)日：2010-09-07
申请号：US12147504
申请日：2008-06-27
申请人： Yi-Sheng Liu
发明人： Yi-Sheng Liu
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A voltage converter includes a pulse width modulation controller chip, an enabling transistor, a first resistor, a pull-up transistor, a pull-down transistor, and a low pass filter. The pulse width modulation controller chip includes a plurality of pins, a gate control logic circuit, an enabling comparator, a first gate driver, a second gate driver, a current source, a first comparator, a power-on reset circuit, an inductor current sensor, a counter and current step generator, and an oscillator. The plurality of pins include a Vcc pin, a BOOT pin, a PHASE pin, a UGATE pin, a LGATE pin, and a pin OCSET. The current source, the first resistor, the inductor current sensor, the counter and current step generator, the oscillator, and the pull-down transistor constitute a light-load circuit.
摘要翻译：电压转换器包括脉冲宽度调制控制器芯片，使能晶体管，第一电阻器，上拉晶体管，下拉晶体管和低通滤波器。脉宽调制控制器芯片包括多个引脚，门控逻辑电路，使能比较器，第一栅极驱动器，第二栅极驱动器，电流源，第一比较器，上电复位电路，电感电流传感器，计数器和电流阶跃发生器以及振荡器。多个引脚包括Vcc引脚，引脚引脚，PHASE引脚，UGATE引脚，LGATE引脚和引脚OCSET。电流源，第一电阻，电感电流传感器，计数器和电流阶跃发生器，振荡器和下拉晶体管构成轻负载电路。

59. 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。

60. 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。

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