公开(公告)号：US20150130292A1

公开(公告)日：2015-05-14

申请号：US14540168

申请日：2014-11-13

Applicant: Pyung-Woo YEON ,  Myeong-Lyong KO ,  Kyung-Goo MOH ,  Sung-Woo MOON ,  Filippo NERI

Inventor： Pyung-Woo YEON ,  Myeong-Lyong KO ,  Kyung-Goo MOH ,  Sung-Woo MOON ,  Filippo NERI

IPC: G05F1/62 ,  H02M3/158 ,  H02J7/02 ,  H02J5/00

CPC classification number: G05F1/62 ,  B60L11/182 ,  B60L11/1824 ,  B60L11/1846 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2230/16 ,  B60L2240/70 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/70 ,  H02M1/36 ,  H02M2001/0045 ,  Y02T10/7005 ,  Y02T10/7088 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7291 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y02T90/169 ,  Y04S30/14

Abstract: A voltage converter includes a high voltage regulator, a buck converter and a dual input linear regulator unit. The high voltage regulator converts a rectified voltage to a first load voltage. The rectified voltage is rectified from an input voltage. The buck converter generates an output voltage having a first level based on the rectified voltage during a stabilizing period and provides a transition detection signal that is enabled when the output voltage transitions to the first level. The stabilizing period is successive to an initializing period. The dual input linear regulator unit receives the first load voltage, the output voltage and a reference voltage, generates a second load voltage based on the first load voltage during the initializing period, and generates the second load voltage based on the output voltage during the stabilizing period.

Abstract translation: 电压转换器包括高压调节器，降压转换器和双输入线性调节器单元。 高压稳压器将整流电压转换为第一负载电压。 整流电压由输入电压整流。 降压转换器在稳定周期期间基于整流电压产生具有第一电平的输出电压，并提供当输出电压转变到第一电平时使能的转换检测信号。 稳定期连续到初始化期。 双输入线性调节器单元接收第一负载电压，输出电压和参考电压，在初始化周期期间基于第一负载电压产生第二负载电压，并且在稳定期间基于输出电压产生第二负载电压 期。

公开(公告)号：US08994219B2

公开(公告)日：2015-03-31

申请号：US13811287

申请日：2012-12-28

Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.

Inventor： Xueliang Yang

IPC: H02J1/00 ,  G05F1/62

CPC classification number: G05F1/62 ,  H02M3/1582 ,  H02M2001/0045 ,  Y10T307/707

Abstract: A DC/DC module comprises a buck-boost circuit, which is used to convert the input voltage of the DC/DC module into a gate off-state voltage VGL; a LDO circuit, which is used to convert the input voltage of the buck-boost circuit into a lower limit output voltage VBB of a liquid crystal driver; a BUCK circuit, which is used to convert the input voltage of the DC/DC module into an operating voltage VDD of a specific IC; a charge pump circuit, which is used to convert the input voltage of the DC/DC module into a gate on-state voltage VGH; wherein, the input voltage of the DC/DC module is used directly as an upper limit output voltage VAA. The DC/DC module according to the present invention has simple circuit structure, low hardware cost, and high load capacity.

Abstract translation: DC / DC模块包括降压 - 升压电路，其用于将DC / DC模块的输入电压转换为栅极截止电压VGL; LDO电路，用于将降压 - 升压电路的输入电压转换为液晶驱动器的下限输出电压VBB; BUCK电路，用于将DC / DC模块的输入电压转换为特定IC的工作电压VDD; 电荷泵电路，用于将DC / DC模块的输入电压转换为栅极导通状态电压VGH; 其中，DC / DC模块的输入电压直接用作上限输出电压VAA。 根据本发明的DC / DC模块具有电路结构简单，硬件成本低，负载能力高。

公开(公告)号：US20150048761A1

公开(公告)日：2015-02-19

申请号：US13966513

申请日：2013-08-14

Applicant: Infineon Technologies Austria AG

Inventor： Tiam Poh LAU ,  Zhongfang WANG

IPC: H05B33/08 ,  H02M3/335 ,  H02M3/155

CPC classification number: H05B33/0815 ,  H02M3/155 ,  H02M3/33507 ,  H02M2001/0045 ,  H02M2005/2932 ,  H05B33/0845

Abstract: Representative implementations of devices and techniques provide a dimming arrangement for a variable load, such as a lamp. The dimming arrangement is coupled to a drive circuit for the load and arranged to reduce a drive current associated with the drive circuit, based on a control voltage.

Abstract translation: 设备和技术的代表性实现为诸如灯的可变负载提供调光装置。 调光装置耦合到用于负载的驱动电路，并且被布置为基于控制电压来减小与驱动电路相关联的驱动电流。

公开(公告)号：US08917067B2

公开(公告)日：2014-12-23

申请号：US13529085

申请日：2012-06-21

Applicant: Pablo Moreno Galbis ,  James E. C. Brown

Inventor： Pablo Moreno Galbis ,  James E. C. Brown

IPC: G05F3/16 ,  H02M3/158 ,  H02M1/00 ,  H02M1/38

CPC classification number: H02M3/1588 ,  H02M2001/0045 ,  H02M2001/385 ,  Y02B70/1466

Abstract: Methods, apparatuses and systems for assisting an output current of a voltage converter, are disclosed. One method includes detecting a request for a positive change in an output voltage of the voltage converter, selecting an output current assist value based on the requested positive change in the output voltage, for a predetermined load, and assisting the output current with the selected output assist current.

Abstract translation: 公开了用于辅助电压转换器的输出电流的方法，装置和系统。 一种方法包括检测对电压转换器的输出电压的正变化的请求，基于所请求的输出电压的正变化，对于预定负载选择输出电流辅助值，以及用所选择的输出辅助输出电流 协助电流

公开(公告)号：US20140312863A1

公开(公告)日：2014-10-23

申请号：US14230531

申请日：2014-03-31

Applicant: ROHM CO., LTD.

Inventor： Kenji ARAI ,  Noriaki HIRAGA

IPC: H02M3/158 ,  H02M3/156

CPC classification number: B60L11/18 ,  H02M3/156 ,  H02M3/158 ,  H02M2001/0045

Abstract: A switching transistor is configured such that its on resistance RON is switchable between at least two values RON1 and RON2. When the switching transistor is switched from off to on, a control circuit sets the on resistance of the switching transistor to the first value RON1 for a first period immediately after the switching of the switching transistor. Subsequently, for a second period until the switching transistor is turned off, the control circuit sets the on resistance of the switching transistor to the second value RON2 that is smaller than the first value RON1.

Abstract translation: 开关晶体管被配置为使得其导通电阻RON可在至少两个值RON1和RON2之间切换。 当开关晶体管从截止切换到导通时，控制电路在开关晶体管切换之后的第一周期将开关晶体管的导通电阻设置为第一值RON1。 随后，在开关晶体管断开之前的第二时段，控制电路将开关晶体管的导通电阻设置为小于第一值RON1的第二值RON2。

公开(公告)号：US08867947B2

公开(公告)日：2014-10-21

申请号：US13746172

申请日：2013-01-21

Applicant: Mariko Yamazawa

Inventor： Mariko Yamazawa

IPC: G03G15/00 ,  G05F1/00 ,  G05F1/46 ,  H02M1/00

CPC classification number: G05F1/46 ,  G03G15/5004 ,  G03G15/80 ,  H02M2001/0045

Abstract: A power supply control device includes a switching regulator, a linear regulator, a switching unit, a consumed current detection unit, a current determination unit, and a power determination unit. The consumed current detection unit detects a consumed current of the regulator serving as a power supply to the load. The current determination unit determines whether or not the consumed current is greater than or equal to a predetermined current. The power determination unit determines whether or not a consumed power of the regulator is greater than or equal to a predetermined power. The switching unit connects the linear regulator to the load when the consumed current is lower than the predetermined current and the consumed power is lower than the predetermined power.

Abstract translation: 电源控制装置包括开关调节器，线性调节器，开关单元，消耗电流检测单元，电流确定单元和功率确定单元。 消耗电流检测单元检测作为负载的电源的调节器的消耗电流。 当前确定单元确定消耗电流是否大于或等于预定电流。 功率确定单元确定调节器的消耗功率是否大于或等于预定功率。 当消耗电流低于预定电流并且消耗功率低于预定功率时，开关单元将线性调节器连接到负载。

公开(公告)号：US08842447B2

公开(公告)日：2014-09-23

申请号：US13661171

申请日：2012-10-26

Applicant: Minebea Co., Ltd.

Inventor： Josef Fisch ,  Mykhaylo Raykhman

IPC: H02M3/335 ,  H02M7/217 ,  H02M1/00

CPC classification number: H02M7/217 ,  H02M2001/0045

Abstract: A DC power supply (1) having a series regulator (2) for generating a fixed output DC voltage (VCC) at a variable input AC voltage (VAC) with low power loss. For this purpose, the DC power supply (1, 101, 201, 301) has a transformer (3, 103) having at least two auxiliary windings (W1, W2) having different numbers of windings that can each be connected via a switching device (4, 104, 204, 304) to the series regulator (2). Switching is effected such that the power loss is kept as low as possible.

Abstract translation: 一种具有串联调节器（2）的DC电源（1），用于以具有低功率损耗的可变输入AC电压（VAC）产生固定输出DC电压（VCC）。 为此，直流电源（1,101,301,301）具有变压器（3,103），该变压器具有至少两个具有不同数量的绕组的辅助绕组（W1，W2），每个绕组可以经由开关装置 （4,104,204,304）连接到串联调节器（2）。 实现切换，使得功率损耗保持尽可能低。

公开(公告)号：US08841959B2

公开(公告)日：2014-09-23

申请号：US13797079

申请日：2013-03-12

Applicant: HiDeep Inc.

Inventor： Seyeob Kim ,  Youngho Cho ,  Bonkee Kim

IPC: H03K3/012 ,  G05F1/563 ,  H03K3/013 ,  H02M3/07 ,  H02M1/00

CPC classification number: H03K3/013 ,  G05F1/563 ,  H02M3/07 ,  H02M2001/0045 ,  H03K3/012

Abstract: Disclosed is a noise removing circuit including: a voltage booster which boosts an input signal; and a regulator which receives an output signal of the voltage booster and reduces the signal's voltage higher than a specific value to the signal's voltage having the specific value and then outputs the signal.

Abstract translation: 公开了一种噪声消除电路，包括：升压输入信号的升压器; 以及调节器，其接收所述升压器的输出信号，并且将所述信号的电压降低到具有所述特定值的所述信号的电压以上的特定值，然后输出所述信号。

公开(公告)号：US20140266117A1

公开(公告)日：2014-09-18

申请号：US13828044

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Ricardo T Goncalves ,  Troy Stockstad ,  Joseph D Rutkowski

IPC: H02M3/157

CPC classification number: H02M3/158 ,  H02M1/08 ,  H02M3/155 ,  H02M2001/0003 ,  H02M2001/0045

Abstract: The present disclosure includes systems and methods for 100% duty cycle in switching regulators. A switching regulator circuit includes a ramp generator to produce a ramp signal having a period and a comparator to receive the ramp signal and an error signal, and in accordance therewith, produce a modulation signal. In a first mode of operation, the ramp signal increases to intersect the error signal, and in accordance therewith, changes a state of a switching transistor during each period of the ramp signal. In a second mode of operation, the error signal increase above a maximum value of the ramp signal, and in accordance therewith, the switching transistor is turned on for one or more full periods of the ramp signal.

Abstract translation: 本公开包括用于开关稳压器中的100％占空比的系统和方法。 开关调节器电路包括斜坡发生器以产生具有周期的斜坡信号和用于接收斜坡信号的比较器和误差信号，并且根据其产生调制信号。 在第一操作模式中，斜坡信号增加以与误差信号相交，因此，在斜坡信号的每个周期期间改变开关晶体管的状态。 在第二操作模式中，误差信号增加到斜坡信号的最大值之上，并且根据此，开关晶体管导通一个或多个斜坡信号的整个周期。

公开(公告)号：US08830776B1

公开(公告)日：2014-09-09

申请号：US13835068

申请日：2013-03-15

Applicant: Freescale Semiconductor, Inc.

Inventor： Jon S. Choy ,  Gilles J. Muller ,  Karthik Ramanan

IPC: G11C7/00 ,  G05F1/46

CPC classification number: G05F1/46 ,  H02M1/15 ,  H02M3/07 ,  H02M2001/0045 ,  H02M2003/071

Abstract: A negative charge pump is responsive to a pump enable signal. A voltage controlled current source provides a current. A resistor is coupled between a node from the voltage controlled current source and a negative charge output from the negative charge pump. A capacitor is placed in parallel with the resistor. A comparator generates the pump enable signal to control the negative charge pump. The comparator is coupled to the resistor and the capacitor and measures an IR drop thereacross and compares this measurement against a reference threshold. A level of the pump enable signal can be variable by tuning an amount of resistance of the resistor or capacitor or adjusting the reference threshold. A memory can be driven by a method of the negative charge pump.

Abstract translation: 负电荷泵响应于泵使能信号。 电压控制电流源提供电流。 电阻器耦合在来自压控电流源的节点和来自负电荷泵的负电荷输出之间。 电容器与电阻器并联放置。 比较器产生泵使能信号来控制负电荷泵。 比较器耦合到电阻器和电容器，并测量其上的IR电压，并将此测量值与参考阈值进行比较。 通过调节电阻或电容器的电阻量或调整参考阈值，可以使泵启用信号的电平可变。 存储器可以由负电荷泵的方法驱动。