会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 91. 发明申请
    • PWM/PFM CONTROLLER FOR USE WITH SWITCHED-MODE POWER SUPPLY
    • PWM / PFM控制器,用于开关电源
    • US20150061624A1
    • 2015-03-05
    • US14069637
    • 2013-11-01
    • Intersil Americas LLC
    • Vinod LalithambikaClaudio Collura
    • H02M3/04
    • H02M3/156H02M2001/0025H02M2001/0032Y02B70/16
    • A controller, for use with an SMPS DC-DC converter, includes a PWM/PFM generator and a switch driver. The PWM/PFM generator simultaneously generates CTRLPWM and CTRLPFM signals in dependence on a CTRL signal. The switch driver generates a drive signal in dependence on both the CTRLPWM and CTRLPFM signals. The drive signal is used to control a power switch of the DC-DC converter. The CTRL signal is generated in dependence on a feedback signal indicative of an output voltage or current of the DC-DC converter. Regardless of the mode of the DC-DC converter, the CTRLPWM signal is used to control a peak current in an inductor of the DC-DC converter, and the CTRLPFM signal is used to control a switching frequency of the power switch. In certain embodiments, both the CTRLPFM and CTRLPWM signals are varied in dependence on the feedback signal when the DC-DC converter is in a PWM-PFM mode.
    • 用于SMPS DC-DC转换器的控制器包括一个PWM / PFM发生器和一个开关驱动器。 PWM / PFM发生器根据CTRL信号同时产生CTRLPWM和CTRLPFM信号。 开关驱动器根据CTRLPWM和CTRLPFM信号产生驱动信号。 驱动信号用于控制DC-DC转换器的电源开关。 根据表示DC-DC转换器的输出电压或电流的反馈信号产生CTRL信号。 不管DC-DC转换器的模式如何,CTRLPWM信号用于控制DC-DC转换器的电感器中的峰值电流,CTRLPFM信号用于控制电源开关的开关频率。 在某些实施例中,当DC-DC转换器处于PWM-PFM模式时,CTRLPFM和CTRLPWM信号都根据反馈信号而变化。
    • 92. 发明授权
    • Clamp circuits for power converters
    • 电源转换器的钳位电路
    • US08966294B2
    • 2015-02-24
    • US13389198
    • 2011-08-12
    • Xiaodong (David) ZhanLong (Robin) YuShijia (Billy) Yang
    • Xiaodong (David) ZhanLong (Robin) YuShijia (Billy) Yang
    • H02M3/335H02M1/34G06F1/32G06F1/26
    • H02M3/33507G06F1/32H02M1/34H02M3/33576H02M3/33592H02M2001/346Y02B70/1433Y02B70/1475Y02B70/1491
    • A power converter comprises an input port configured to receive a source of power, an output port configured to provide output power, and a bridge circuit coupled to the input port. The bridge circuit comprises a first switch coupled in series with a second switch, and a third switch coupled in series with a fourth switch. A first clamp rectifier is coupled in series with a second clamp rectifier, and the first and second clamp rectifiers are coupled in parallel with the first and second switches. A first clamp capacitor is coupled between the first and second clamp rectifiers, with the first clamp capacitor operative to reduce power loss in the first and second clamp rectifiers. A first resonant inductor is coupled between the first and second switches. The power converter also includes a transformer operatively coupled to the bridge circuit, with the transformer comprising a primary winding and at least one secondary winding. A current rectifying circuit is operatively coupled to the secondary winding of the transformer and the output port.
    • 电力转换器包括被配置为接收电源的输入端口,被配置为提供输出功率的输出端口以及耦合到输入端口的桥式电路。 桥接电路包括与第二开关串联耦合的第一开关和与第四开关串联耦合的第三开关。 第一钳位整流器与第二钳位整流器串联耦合,并且第一和第二钳位整流器与第一和第二开关并联耦合。 第一钳位电容器耦合在第一和第二钳位整流器之间,第一钳位电容器用于减少第一和第二钳位整流器中的功率损耗。 第一谐振电感器耦合在第一和第二开关之间。 功率转换器还包括可操作地耦合到桥式电路的变压器,变压器包括初级绕组和至少一个次级绕组。 电流整流电路可操作地耦合到变压器的次级绕组和输出端口。
    • 95. 发明授权
    • Motion and simple gesture detection using multiple photodetector segments
    • 运动和简单的手势检测使用多个光电检测器段
    • US08907264B2
    • 2014-12-09
    • US13523777
    • 2012-06-14
    • Allen M. Earman
    • Allen M. Earman
    • G06M7/00
    • G06K9/00355G06F3/0416G06F3/0421G06F3/04883
    • An optoelectronics apparatus selectively drives a light source, and includes four electrically isolated photodetector (PD) segments that detect light that has reflected off an object. Each of the four PD segments produces a corresponding signal, referred to as signals A, B, C and D, indicative of the light detected by the respective PD segment. Circuitry is used to produce a first motion signal indicative of a sum of the signals A plus B minus a sum of the signals C plus D, i.e., the first motion signal is indicative of (A+B)−(C+D). Further circuitry produces a second motion signal indicative of (B+C)−(A+D). Additional circuitry produces a signal and/or data that is indicative of a direction and/or rate of motion of an object, in dependence on the first and second motion signals.
    • 光电子装置选择性地驱动光源,并且包括四个电隔离光电检测器(PD)段,其检测已经从物体反射的光。 四个PD段中的每一个产生相应的信号,称为信号A,B,C和D,指示由相应的PD段检测到的光。 电路用于产生指示信号A加B和总和的第一运动信号减去信号C plus D的和,即第一运动信号表示(A + B) - (C + D)。 另外的电路产生指示(B + C) - (A + D)的第二运动信号。 附加电路根据第一和第二运动信号产生指示对象的方向和/或运动速率的信号和/或数据。
    • 96. 发明授权
    • Systems and methods for controlling scanning mirrors for a display device
    • 用于控制显示装置的扫描镜的系统和方法
    • US08902346B2
    • 2014-12-02
    • US13763455
    • 2013-02-08
    • Intersil Americas LLC
    • Gwilym Luff
    • H04N5/222H04N5/74G02B26/10
    • H04N5/7416G02B26/101
    • Certain embodiments described herein relate to a scanning controller configured produce a horizontal (H) and vertical (V) scanning control signal that is used to control a bi-axial scanning mirror of a scanning laser projector device, a system including such a scanning controller, and a method for generating such an H and V scanning control signal. In an embodiment, the H and V scanning control signal includes H scanning frequency content that is used to control a H scanning frequency of the bi-axial scanning mirror, and V scanning frequency content that is used to control a V scanning frequency of the bi-axial scanning mirror. To avoid cross talk, the scanning controller is configured to produce the H and V scanning control signal such that the H scanning frequency content has a null at DC, and the V scanning frequency content has a null at the H scanning frequency.
    • 本文所描述的某些实施例涉及构成的扫描控制器产生用于控制扫描激光投射设备的双轴扫描镜的水平(H)和垂直(V)扫描控制信号,包括这种扫描控制器的系统, 以及用于产生这样的H和V扫描控制信号的方法。 在一个实施例中,H和V扫描控制信号包括用于控制双轴扫描镜的H扫描频率的H扫描频率内容,以及用于控制双轴扫描镜的V扫描频率的V扫描频率内容 同轴扫描镜。 为了避免串扰,扫描控制器被配置为产生H和V扫描控制信号,使得H扫描频率内容在DC处为零,并且V扫描频率内容在H扫描频率处为零。
    • 97. 发明授权
    • Cable equalization and monitoring for degradation and potential tampering
    • 电缆均衡和监测降解和潜在篡改
    • US08872978B2
    • 2014-10-28
    • US13228823
    • 2011-09-09
    • David W. RitterKathryn M. Tucker
    • David W. RitterKathryn M. Tucker
    • H04N5/21H04N21/61H04N5/208H04N21/442H04N21/488
    • H04N21/44209H04N5/208H04N21/4882H04N21/6118
    • Provided herein are methods and systems that provide automatic compensation for frequency attenuation of a video signal transmitted over a cable. In accordance with an embodiment, a system includes an equalizer and a compensation controller. The equalizer receives a video signal that was transmitted over a cable, provides compensation for frequency attenuation that occurred during the transmission over the cable, and outputs a compensated video signal. The compensation controller automatically adjusts the compensation provided by the equalizer based on comparisons of one or more portions of the compensated video signal to one or more reference voltage levels. One or more values indicative of one or more levels of compensation provided by the equalizer are stored in memory and/or registers for each time, of a plurality of times. A monitor monitors for changes in the cable and/or the video signal transmitted over the cable based on the stored values. Additionally, the monitor can selectively trigger an alert based on changes in the one or more stored values.
    • 本文提供了对通过电缆传输的视频信号的频率衰减提供自动补偿的方法和系统。 根据实施例,系统包括均衡器和补偿控制器。 均衡器接收通过电缆传输的视频信号,提供在通过电缆传输期间发生的频率衰减的补偿,并输出经补偿的视频信号。 补偿控制器基于将补偿的视频信号的一个或多个部分与一个或多个参考电压电平进行比较,自动调整由均衡器提供的补偿。 指示由均衡器提供的一个或多个补偿级别的一个或多个值在多次存储在每一次的存储器和/或寄存器中。 监视器基于存储的值监视电缆和/或通过电缆传输的视频信号的变化。 此外,监视器可以基于一个或多个存储的值的改变来选择性地触发警报。
    • 99. 发明授权
    • Switching regulator input current sensing circuit, system, and method
    • 开关稳压器输入电流检测电路,系统及方法
    • US08866453B2
    • 2014-10-21
    • US12550081
    • 2009-08-28
    • Robert L. Lyle, Jr.
    • Robert L. Lyle, Jr.
    • G05F1/00H02M3/156H02M1/00
    • H02M3/156H02M3/158H02M2001/0009
    • A Buck switching regulator includes first Buck switching regulator circuitry is operable to generate a first output voltage from an input voltage and operable to generate a first sensed voltage having a value that is proportional to an output current being provided by the first Buck switching regulator circuitry. The first Buck switching regulator circuitry receives an input current and operates at a first duty cycle determined by a duty cycle signal. Input current sensing circuitry includes second Buck switching regulator circuitry coupled to the first Buck regulator switching circuitry to receive the duty cycle signal and to receive the first sensed voltage as an input voltage to the second Buck switching regulator circuitry. The second Buck switching regulator circuitry is operable responsive to the duty cycle signal to generate a second output voltage from the first sensed voltage. The second output voltage has a value that is proportional to the input current being supplied to the first Buck switching regulator circuitry. Such a Buck switching regulator can be utilized in a variety of different types of electronic systems, such as laptop computer systems, and can also be used in charging systems in laptop computer and other types of electronic systems.
    • 降压开关调节器包括第一降压开关稳压器电路,其可操作以从输入电压产生第一输出电压并且可操作以产生具有与由第一降压开关稳压器电路提供的输出电流成比例的值的第一感测电压。 第一降压开关稳压器电路接收输入电流并在由占空比信号确定的第一占空比下工作。 输入电流感测电路包括耦合到第一降压稳压器开关电路的第二降压开关稳压器电路,以接收占空比信号并将第一感测电压作为第二降压开关稳压器电路的输入电压接收。 第二降压开关稳压器电路响应于占空比信号而工作,以从第一感测电压产生第二输出电压。 第二输出电压具有与被提供给第一降压开关稳压器电路的输入电流成比例的值。 这种降压开关调节器可以用于各种不同类型的电子系统,例如膝上型计算机系统,并且还可以用于膝上型计算机和其他类型的电子系统中的充电系统。