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131. 发明申请

US20150061616A1 SWITCHING POWER VOLTAGE REGULATOR 有权
标题翻译：开关电源稳压器
公开(公告)号：US20150061616A1
公开(公告)日：2015-03-05
申请号：US14472724
申请日：2014-08-29
申请人： Fitipower Integrated Technology, Inc.
发明人： CHIH-NAN CHENG , SHANG-CHENG YU
IPC分类号： H02M3/158
CPC分类号： H02M3/1588 , H02M1/088 , H02M3/1584 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： A switching power voltage regulator includes a pulse width modulation (PWM) signal generator, an output circuit and a feedback circuit. The PWM signal generator is configured to generate a PWM signal. The feedback circuit is configured to provide a feedback signal to the output circuit according to an output voltage of the output circuit. The output circuit includes an inductor, a plurality of inverters, and a driver. Each of the inverters includes a first transistor and a second transistor. When the inductor needs to be charged, the driver selectively switches one or more corresponding first transistors on according to the feedback signal.
摘要翻译：开关电源电压调节器包括脉宽调制（PWM）信号发生器，输出电路和反馈电路。 PWM信号发生器被配置为产生PWM信号。反馈电路被配置为根据输出电路的输出电压向输出电路提供反馈信号。输出电路包括电感器，多个逆变器和驱动器。每个反相器包括第一晶体管和第二晶体管。当电感器需要充电时，驱动器根据反馈信号选择性地切换一个或多个对应的第一晶体管。

132. 发明申请

US20150061615A1 SWITCHING REGULATOR 有权
标题翻译：开关稳压器
公开(公告)号：US20150061615A1
公开(公告)日：2015-03-05
申请号：US14461554
申请日：2014-08-18
申请人： Yuusuke Michishita
发明人： Yuusuke Michishita
IPC分类号： H02M3/158
CPC分类号： H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： A switching regulator includes a first switching element and a second switching element in a pair to be switched over to convert an input voltage to a certain constant voltage, and an operation monitor to monitor an operation state of the first switching element, in which a switching of the second switching element is changed according to a result of the monitoring by the operation monitor.
摘要翻译：一种开关调节器包括：第一开关元件和一对第二开关元件，用于切换以将输入电压转换成一定的恒定电压;以及操作监视器，用于监视第一开关元件的操作状态，其中开关根据操作监视器的监视结果来改变第二开关元件。

133. 发明申请

US20150061611A1 BOOTSTRAP REFRESH CONTROL CIRCUIT, POWER CONVERTER AND ASSOCIATED METHOD 有权
标题翻译： BOOTSTRAP REFRESH控制电路，电源转换器及相关方法
公开(公告)号：US20150061611A1
公开(公告)日：2015-03-05
申请号：US14015964
申请日：2013-08-30
申请人： Monolithic Power Systems, Inc.
发明人： Yike Li
IPC分类号： H02M3/157
CPC分类号： H02M3/1588 , H03K17/063 , H03K2217/0063 , H03K2217/0081 , Y02B70/1466
摘要： A power converter having a bootstrap refresh control circuit and a method for controlling the power converter. The bootstrap refresh control circuit is configured to monitor a bootstrap voltage across a bootstrap capacitor and to provide an enhanced high side driving signal to a high side switch of the power converter. The bootstrap refresh control circuit is further configured to controlling the charging of the bootstrap capacitor through regulating the on and off switching of the high side switch and a low side switch based on the bootstrap voltage. The bootstrap refresh control circuit can refresh the bootstrap voltage in time to support driving the high side switch normally, without causing large spikes in an output voltage of the power converter and without influencing the power conversion efficiency of the power converter.
摘要翻译：一种具有自举刷新控制电路的功率转换器和用于控制功率转换器的方法。自举刷新控制电路被配置为监视自举电容器两端的自举电压，并向功率转换器的高侧开关提供增强的高侧驱动信号。自举刷新控制电路还被配置为通过基于自举电压来调节高侧开关和低侧开关的导通和截止开关来控制自举电容器的充电。自举刷新控制电路可以及时刷新自举电压，以支持正常驱动高侧开关，而不会在功率转换器的输出电压中引起大的尖峰而不会影响功率转换器的功率转换效率。

134. 发明授权

US08970199B2 Electronic device and method for DC-DC conversion with variable bias current 有权
标题翻译：具有可变偏置电流的DC-DC转换的电子设备和方法
公开(公告)号：US08970199B2
公开(公告)日：2015-03-03
申请号：US12792919
申请日：2010-06-03
申请人： Kevin Scoones , Gerhard Thiele , Neil Gibson
发明人： Kevin Scoones , Gerhard Thiele , Neil Gibson
IPC分类号： H02M3/157 , H02M1/32 , H02M3/158 , H02M1/00
CPC分类号： H02M3/157 , H02M1/32 , H02M3/1588 , H02M2001/0032 , Y02B70/1466
摘要： The invention relates to an electronic device and a method for DC-DC conversion using a comparator for generating an output signal for driving a power switch of a switch mode DC-DC converter. The electronic device is configured to reduce a bias current of the comparator with a first slope in response to a decreasing load and to increase the bias current of the comparator with a second slope in response to an increasing load, wherein the second slope is steeper than the first slope.
摘要翻译：本发明涉及使用比较器产生用于驱动开关模式DC-DC转换器的电源开关的输出信号的DC-DC转换的电子装置和方法。电子设备被配置为响应于负载的减小而以比第一斜率减小比较器的偏置电流，并且响应于增加的负载而以比第二斜率增加比较器的偏置电流，其中第二斜率比第一个斜坡

135. 发明授权

US08963522B2 Current-direction detecting circuit and DC-DC converter 有权
标题翻译：电流方向检测电路和DC-DC转换器
公开(公告)号：US08963522B2
公开(公告)日：2015-02-24
申请号：US13355843
申请日：2012-01-23
申请人： Masafumi Otsuka , Yoichi Tokai
发明人： Masafumi Otsuka , Yoichi Tokai
IPC分类号： G01R19/14 , G05F1/618 , H02M3/155 , H02M3/158 , H02M1/00
CPC分类号： H02M3/1588 , H02M2001/0009 , Y02B70/1466
摘要： According to one embodiment, a circuit includes an amplifier, first and second capacitors, a switch and a monitoring-comparator. The amplifier amplifies source and drain voltages to output first and second amplified-signals. The first and second capacitors are connected to the amplifier's first and second terminals. The first and second amplified-signals are outputted from the first and second terminals. The switch forms first and second loops when a switching-transistor is OFF. The switch supplies a common-reference-voltage to the first and second loops to store charge in the first and second capacitors. The switch ends the first and second loops based on a gate-signal when the switching-transistor is ON. The monitoring-comparator compares first and second inputs. The monitoring-comparator outputs a signal depending on a comparison result when the switching-transistor is ON. The first and second inputs are input through the first and second capacitors.
摘要翻译：根据一个实施例，电路包括放大器，第一和第二电容器，开关和监视比较器。放大器放大源极和漏极电压以输出第一和第二放大信号。第一和第二电容器连接到放大器的第一和第二端子。第一和第二放大信号从第一和第二端子输出。当开关晶体管截止时，开关形成第一和第二环路。开关向第一和第二回路提供公共参考电压以在第一和第二电容器中存储电荷。当开关晶体管导通时，开关基于栅极信号结束第一和第二环路。监视比较器比较第一和第二输入。监视比较器根据开关晶体管导通时的比较结果输出信号。第一和第二输入通过第一和第二电容器输入。

136. 发明申请

US20150049521A1 CONTROL DEVICE FOR A RECTIFIER OF A SWITCHING CONVERTER 有权
标题翻译：用于开关转换器整流器的控制装置
公开(公告)号：US20150049521A1
公开(公告)日：2015-02-19
申请号：US14459164
申请日：2014-08-13
申请人： DORA S.p.A.
发明人： Alberto Iorio , Maurizio Foresta
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M3/1588 , Y02B70/1466 , Y02B70/1475
摘要： A control device for a rectifier of a switching converter that includes a rectifier with at least one MOS transistor and a control device that is configured to generate a turn on and off signal for the at least one transistor. The control device also includes a measuring circuit to measure the conduction time of the body diode of the at least one transistor during each converter switching half-cycle. The control device is configured to, cycle by cycle: verify if the drain-source voltage of the at least one transistor is greater or less than a voltage threshold, and if the drain-source voltage is greater than the voltage threshold to turn off the at least one transistor, measure the conduction time of the body diode and increase the voltage threshold by a quantity in the next switching cycle.
摘要翻译：一种用于开关转换器的整流器的控制装置，其包括具有至少一个MOS晶体管的整流器和被配置为产生所述至少一个晶体管的导通和截止信号的控制装置。控制装置还包括测量电路，用于在每个转换器切换半周期期间测量至少一个晶体管的体二极管的导通时间。控制装置被配置成逐周期：验证至少一个晶体管的漏 - 源电压是否大于或小于电压阈值，并且如果漏 - 源电压大于电压阈值以关闭至少一个晶体管测量体二极管的导通时间，并在下一个开关周期内将电压阈值增加一个量。

137. 发明申请

US20150042300A1 VOLTAGE REGULATOR WITH SWITCHING AND LOW DROPOUT MODES 审中-公开
标题翻译：具有开关和低压差模式的电压调节器
公开(公告)号：US20150042300A1
公开(公告)日：2015-02-12
申请号：US14454134
申请日：2014-08-07
申请人： Microsemi Corporation
发明人： Arkadiy Peker , Bernard Drexler , Tamir Reshef , Reghu Rajan
IPC分类号： G05F1/575 , H02M3/156
CPC分类号： H02M3/156 , H02M3/1588 , H02M2001/0045 , Y02B70/1466
摘要： A voltage regulator includes an input terminal, an output terminal, a control circuitry, a buck mode switching converter, and a low dropout regulator circuit. The buck mode switching converter is arranged to convert a voltage signal received at the input terminal to a first voltage signal at the output terminal responsive to a first predetermined signal output from the control circuitry. The buck mode switching converter includes an electronically controlled switch in communication with an energy storage element. The low dropout regulator circuit is coupled between the input terminal and the output terminal and includes a linear circuit and is arranged to control a voltage drop across the linear circuit so as to provide a second voltage signal at the output terminal responsive to a second predetermined signal output from the control circuitry.
摘要翻译：电压调节器包括输入端子，输出端子，控制电路，降压模式切换转换器和低压差稳压器电路。降压模式切换转换器被配置为响应于从控制电路输出的第一预定信号，将在输入端接收的电压信号转换成输出端的第一电压信号。降压模式切换转换器包括与能量存储元件连通的电子控制开关。低压差稳压器电路耦合在输入端子和输出端子之间，并且包括线性电路，并被布置成控制线性电路两端的电压降，以便响应于第二预定信号在输出端子处提供第二电压信号从控制电路输出。

138. 发明申请

US20150028825A1 Control Circuit, Control Method, DC-DC Converter and Electronic Device 有权
标题翻译：控制电路，控制方法，DC-DC转换器和电子设备
公开(公告)号：US20150028825A1
公开(公告)日：2015-01-29
申请号：US14378751
申请日：2012-03-07
申请人： ST-Ericsson SA
发明人： Jingwen Mao , Zhiyong Luo , Kaihua Zheng
IPC分类号： H02M3/04 , H02M1/08
CPC分类号： H02M3/04 , H02M1/08 , H02M3/157 , H02M3/1588 , H02M2001/0003 , Y02B70/1466
摘要： A control circuit (115), a control method, a DC-DC converter and an electronic device are provided. The control circuit (115) is used to control the DC-DC converter to switch its operation modes. In the control circuit (115), whether mode of the DC-DC converter is to be switched is judged according to parameters of a first duration of an active duration and a second duration of an inactive duration. Comparison of analogue values is prevented, and as a result, the use of the analogue comparator is reduced, thus the influence of the semiconductor processes on designing a controller can be reduced.
摘要翻译：提供控制电路（115），控制方法，DC-DC转换器和电子设备。控制电路（115）用于控制DC-DC转换器切换其工作模式。在控制电路（115）中，根据活动持续时间的第一持续时间和非活动持续时间的第二持续时间的参数来判断是否要切换DC-DC转换器的模式。可以防止模拟值的比较，结果减少了模拟比较器的使用，从而可以降低半导体工艺对设计控制器的影响。

139. 发明授权

US08936980B1 Dual gate lateral double-diffused MOSFET (LDMOS) transistor 有权
标题翻译：双栅极双扩散MOSFET（LDMOS）晶体管
公开(公告)号：US08936980B1
公开(公告)日：2015-01-20
申请号：US13784559
申请日：2013-03-04
申请人： Volterra Semiconductor Corporation
发明人： Marco A. Zuniga , Budong You
IPC分类号： H01L29/72 , H01L29/66
CPC分类号： H01L29/66681 , H01L29/0878 , H01L29/402 , H01L29/42364 , H01L29/42368 , H01L29/7816 , H01L29/7831 , H02M3/1588 , Y02B70/1466
摘要： Method and apparatus for providing a lateral double-diffused MOSFET (LDMOS) transistor having a dual gate. The dual gate includes a first gate and a second gate. The first gate includes a first oxide layer formed over a substrate, and the second gate includes a second oxide layer formed over the substrate. The first gate is located a pre-determined distance from the second gate. A digitally implemented voltage regulator is also provided that includes a switching circuit having a dual gate LDMOS transistor.
摘要翻译：用于提供具有双栅极的横向双扩散MOSFET（LDMOS）晶体管的方法和装置。双栅极包括第一栅极和第二栅极。第一栅极包括在衬底上形成的第一氧化物层，并且第二栅极包括在衬底上形成的第二氧化物层。第一个门位于与第二个门的预定距离。还提供一种数字实现的电压调节器，其包括具有双栅极LDMOS晶体管的开关电路。

140. 发明申请

US20150008890A1 STEP-DOWN DIRECT-CURRENT TO DIRECT-CURRENT CONVERTER, CONTROLLER AND CONTROL METHOD THEREOF, AND ELECTRONIC APPARATUS USING SAME 有权
标题翻译：直流电直流到直流电流转换器，控制器及其控制方法，以及使用它的电子设备
公开(公告)号：US20150008890A1
公开(公告)日：2015-01-08
申请号：US14314175
申请日：2014-06-25
申请人： Sony Computer Entertainment Inc.
发明人： Kazuki Sasao , Kazuaki Mitsui
IPC分类号： H02M3/158
CPC分类号： H02M3/1588 , H02M1/08 , H02M1/084 , H02M1/0845 , H02M1/088 , H02M3/1584 , H02M2001/0054 , H02M2003/1586 , Y02B70/1466 , Y02B70/1491
摘要： An M-channel (M is an integer of at least two) synchronous rectification type step-down DC/DC converter is provided. A controller in the converter (i) calculates a load current on a basis of currents flowing through M inductors, (ii) dynamically changes the number K of driving phases (K is an integer of up to M) on the basis of the calculated load current, (iii) generates a pulse signal adjusted in duty ratio such that an output voltage of an output line coincides with a predetermined reference voltage, (iv) selects K drivers among M drivers, and distributes the pulse signal with a phase difference of (360/K) degrees to each of the selected K drivers, and (vi) monotonically increases an amplitude control signal indicating the amplitude of a gate driving voltage with respect to the calculated load current in a range determined in advance for each number K of driving phases.
摘要翻译：提供M通道（M为至少为2的整数）同步整流型降压DC / DC转换器。转换器（i）中的控制器基于流过M个电感器的电流来计算负载电流，（ii）基于所计算的负载来动态地改变驱动相位的数量K（K为整数为M）电流，（iii）产生调节占空比的脉冲信号，使得输出线的输出电压与预定参考电压一致，（iv）在M个驱动器中选择K个驱动器，并将相位差为（ 360度/ K度），以及（vi）单调地增加一个幅度控制信号，该振幅控制信号指示相对于计算出的负载电流的栅极驱动电压的幅度在针对驾驶的每个数量K预先确定的范围内阶段

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