专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09954400B2 Wireless power receiver with programmable power path 有权
公开(公告)号：US09954400B2
公开(公告)日：2018-04-24
申请号：US15037051
申请日：2015-01-08
申请人： MediaTek Singapore Pte. Ltd.
发明人： Hasnain Akram , Yung-Chih Yen , Patrick Stanley Riehl , Anand Satyamoorthy
IPC分类号： H02M3/156 , H02J50/12 , H02J5/00 , H02J7/02 , H01F38/14 , G05F1/575 , H02M3/07 , H02M7/217 , H04B5/00 , H02M1/00 , H02M7/219 , G05F1/56
摘要： A synchronous rectifier using only n-channel devices in which the low-side switches are effectively cross-coupled using low-side comparators and the high-side switches perform an accurate zero-voltage-switching (ZVS) comparison. The charging path of each bootstrap domain is completed through the low-side switches, which are each always on for every half-cycle independent of loading. This scheme gives rectifier efficiency gain because a) each bootstrap domain receives maximum charging time, and b) the charging occurs through a switch rather than a diode. Both these factors ensure the bootstrap domain is fully charged, thereby reducing conduction losses through the rectifier switches. Furthermore, settings may be adjusted by software to optimize the resistive and capacitive losses of the rectifier. Using data for die temperature and operating frequency, software can create a feedback loop, dynamically adjusting rectifier settings in order to achieve the best possible efficiency.

2. 发明申请

US20160299521A1 Wireless Power Receiver with Programmable Power Path 审中-公开
标题翻译：具有可编程电源路径的无线电源接收器
公开(公告)号：US20160299521A1
公开(公告)日：2016-10-13
申请号：US15037051
申请日：2015-01-08
申请人： Hasnani AKRAM , Yung-Chih YEN , Patrick Stanley RIEHL , Anand SATYAMOORTHY , MEDIATEK SINGAPORE PTE. LTD.
发明人： HASNAIN AKRAM , Yung-Chih Yen , Patrick Stanley Riehl , Anand Satyamoorthy
IPC分类号： G05F1/575 , H02J50/12 , H02M3/07 , H02M7/217
CPC分类号： H02J50/12 , G05F1/56 , H01F38/14 , H02J5/005 , H02J7/025 , H02M3/07 , H02M3/156 , H02M7/217 , H02M2001/0045 , H02M2007/2195 , H04B5/0037 , Y02B70/1408 , Y02B70/1425 , Y02B70/1441
摘要： A synchronous rectifier using only n-channel devices in which the low-side switches are effectively cross-coupled using low-side comparators and the high-side switches perform an accurate zero-voltage-switching (ZVS) comparison. The charging path of each bootstrap domain is completed through the low-side switches, which are each always on for every half-cycle independent of loading. This scheme gives rectifier efficiency gain because a) each bootstrap domain receives maximum charging time, and b) the charging occurs through a switch rather than a diode. Both these factors ensure the bootstrap domain is fully charged, thereby reducing conduction losses through the rectifier switches. Furthermore, settings may be adjusted by software to optimize the resistive and capacitive losses of the rectifier. Using data for die temperature and operating frequency, software can create a feedback loop, dynamically adjusting rectifier settings in order to achieve the best possible efficiency.
摘要翻译：仅使用n沟道器件的同步整流器，其中低侧开关使用低端比较器和高侧开关有效地交叉耦合，执行精确的零电压切换（ZVS）比较。每个引导域的充电路径通过低端开关完成，每个开关每个半周期不依赖于负载。该方案提供整流器效率增益，因为a）每个引导域接收最大充电时间，b）通过开关而不是二极管发生充电。这两个因素都能确保自举域充满电，从而减少整流开关的导通损耗。此外，可以通过软件来调整设置以优化整流器的电阻和电容损耗。使用模块温度和工作频率的数据，软件可以创建一个反馈回路，动态调整整流器设置，以达到最佳的效率。

3. 发明申请

US20140246923A1 OPEN-CIRCUIT IMPEDANCE CONTROL OF A RESONANT WIRELESS POWER RECEIVER FOR VOLTAGE LIMITING 有权
标题翻译：用于电压限幅的谐振无线电接收器的开路阻抗控制
公开(公告)号：US20140246923A1
公开(公告)日：2014-09-04
申请号：US14355212
申请日：2013-09-27
申请人： MediaTek Singapore Pte. Ltd.
发明人： Patrick Stanley Riehl , Anand Satyamoorthy , Hasnain Akram
IPC分类号： H02J17/00
CPC分类号： H02J50/12 , H02J5/005 , H02J17/00
摘要： A resonant wireless power (RWP) receiver is provided that includes an inductor element that couples with a resonant wireless power source. A capacitor arrangement is coupled to the inductor element altering the open-circuit impedance of the RWP receiver to reduce the ac voltage under certain defined situations. The capacitor arrangement includes a plurality capacitors tuned to a control ac voltage in the RWP receiver.
摘要翻译：提供了一种谐振无线电力（RWP）接收器，其包括与谐振无线电源耦合的电感器元件。电容器布置耦合到电感器元件，改变RWP接收器的开路阻抗以在某些限定的情况下降低交流电压。该电容器装置包括调谐到RWP接收器中的控制交流电压的多个电容器。

4. 发明申请

US20140036560A1 CIRCUIT AND METHOD FOR MEASURING AVAILABLE POWER IN A WIRELESS POWER SYSTEM 有权
标题翻译：在无线电力系统中测量可用功率的电路和方法
公开(公告)号：US20140036560A1
公开(公告)日：2014-02-06
申请号：US13954969
申请日：2013-07-30
申请人： MediaTek Singapore Pte. Ltd.
发明人： Anand Satyamoorthy , Patrick Stanley Riehl
IPC分类号： H02M7/06
CPC分类号： H02M7/066 , G01R29/0871 , H02J5/005 , H02J50/12 , H02J50/40
摘要： A resonant wireless power receiver that includes an electromagnetic resonator having one or more inductive elements that are arranged to form a receiver coil and a network of passive components arranged to form a matching network. A rectifier circuit converts ac power from the electromagnetic resonator to dc power. An available-power indicator measures the rectified power to assess the instantaneous power available to the receiver.
摘要翻译：一种谐振无线电力接收器，其包括具有一个或多个感应元件的电磁谐振器，所述电感元件被布置成形成接收器线圈和布置成形成匹配网络的无源部件网络。整流电路将来自电磁谐振器的交流电转换成直流电。可用电源指示器测量整流电源以评估接收器可用的瞬时功率。

5. 发明授权

US10084345B2 Resonant wireless power driver with adjustable power output 有权
公开(公告)号：US10084345B2
公开(公告)日：2018-09-25
申请号：US14771956
申请日：2014-03-14
申请人： MediaTek Singapore Pte. Ltd.
发明人： Patrick Stanley Riehl , Anand Satyamoorthy , Yung-Chih Yen
IPC分类号： H01F27/42 , H02J50/12 , H02J17/00 , H02J5/00 , H03F3/217
CPC分类号： H02J50/12 , H02J5/005 , H02J17/00 , H03F3/2171 , H03F3/2176
摘要： A resonant wireless power (RWP) system is provided that includes a signal generator that provides an input signal waveform. An amplifier structure amplifies signals for transmissions to a receiver that is powered from a fixed DC voltage supply. The amplifier structure is operated either using differential or single-ended amplifiers to provide two different output power levels, in burst mode to provide a range of output power levels, or using a capacitor in a matching network that is adjusted to provide a range of output power levels.

6. 发明申请

US20160254696A1 WIRELESS POWER TRANSFER IN-BAND COMMUNICATION SYSTEM 审中-公开
标题翻译：无线电力传输带内通信系统
公开(公告)号：US20160254696A1
公开(公告)日：2016-09-01
申请号：US15147919
申请日：2016-05-06
申请人： MediaTek Singapore Pte. Ltd.
发明人： William Plumb , Zhen Wang , Zoran Zvonar , Patrick Stanley Riehl , Anand Satyamoorthy , Philip Frank Tustin
IPC分类号： H02J7/02 , H04L1/00 , H04B5/00 , H02J50/10 , H02J50/60
CPC分类号： H02J50/12 , H02J7/025 , H02J50/10 , H02J50/60 , H02J50/80 , H04B5/0037 , H04B5/0093 , H04L1/0045 , H04L1/0061 , H04L25/4904 , H04W52/0261
摘要： A transmitter module is used in a wireless charging system, and is used for performing in-band communication with a receiver module in the wireless charging system to provide a message to the receiver module. The transmitter module has a matching network, a rectifier and an impedance component. The matching network has at least one input terminal coupled to a coil of the transmitter module and at least one output terminal. The rectifier is coupled to the output terminal of the matching network. The impedance component is selectively coupled to the output terminal of the matching network to vary a reflected impedance of the transmitter module seen by the receiver module. By varying the reflected impedance of the transmitter module seen by the receiver module, the transmitter module communicates with the receiver module to provide power control commands, status and/or foreign object detection information.
摘要翻译：在无线充电系统中使用发射机模块，用于与无线计费系统中的接收机模块进行带内通信，以向接收机模块提供消息。发射机模块具有匹配网络，整流器和阻抗组件。匹配网络具有耦合到发射器模块的线圈和至少一个输出端子的至少一个输入端子。整流器耦合到匹配网络的输出端。阻抗分量选择性地耦合到匹配网络的输出端，以改变由接收器模块看到的发射器模块的反射阻抗。通过改变由接收机模块看到的发射机模块的反射阻抗，发射机模块与接收机模块通信，以提供功率控制命令，状态和/或异物检测信息。

7. 发明申请

US20140306763A1 INTEGRATED CIRCUIT WIRELESS COMMUNICATION UNIT AND METHOD FOR PROVIDING A POWER SUPPLY 有权
标题翻译：集成电路无线通信单元及提供电源的方法
公开(公告)号：US20140306763A1
公开(公告)日：2014-10-16
申请号：US14316759
申请日：2014-06-26
申请人： MediaTek Singapore Pte. Ltd.
发明人： Hao-Ping Hong , Patrick Stanley Riehl
IPC分类号： H03F3/195
CPC分类号： H03F3/195 , H03F1/0238 , H03F3/191 , H03F2200/102 , H03F2200/324 , H03F2200/429 , H03F2200/432 , H03F2200/451
摘要： An integrated circuit is described for providing a power supply to a radio frequency (RF) power amplifier (PA). The integrated circuit comprises a low-frequency power supply path comprising a switching regulator and a high-frequency power supply path arranged to regulate an output voltage of a combined power supply at an output port of the integrated circuit for coupling to a load. The combined power supply is provided by the low-frequency power supply path and high-frequency power supply path. The high-frequency power supply path comprises: an amplifier comprising a voltage feedback and arranged to drive a power supply signal on the high-frequency power supply path; and a high-frequency-path supply module arranged to provide a high frequency supply to drive the amplifier, where the high-frequency-path supply module comprises a pulse-width modulator operably coupled to the high frequency supply via a filter and arranged to provide a filtered pulse-width modulated signal to the high frequency supply.
摘要翻译：描述了用于向射频（RF）功率放大器（PA）提供电源的集成电路。集成电路包括低频电源路径，其包括开关调节器和高频电源路径，该高频电源路径被布置成调节用于耦合到负载的集成电路的输出端口处的组合电源的输出电压。组合电源由低频电源路径和高频电源路径提供。高频电源路径包括：放大器，包括电压反馈并被布置成驱动高频电源路径上的电源信号; 以及高频路径供应模块，其布置成提供高频电源来驱动放大器，其中高频路径供应模块包括经由滤波器可操作地耦合到高频电源的脉冲宽度调制器，并布置成提供对高频电源进行滤波后的脉宽调制信号。

8. 发明申请

US20140035384A1 SYSTEM AND METHOD FOR CONTROLLING RESONANT WIRELESS POWER SOURCE 有权
标题翻译：用于控制无线电源的系统和方法
公开(公告)号：US20140035384A1
公开(公告)日：2014-02-06
申请号：US13956377
申请日：2013-08-01
申请人： MediaTek Singapore Pte. Ltd.
发明人： Anand Satyamoorthy , Hasnain Akram , Patrick Stanley Riehl
IPC分类号： H01F38/14
CPC分类号： H02J50/12 , H01F38/14 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/40 , H02J50/80
摘要： A resonant wireless power system includes a source circuit having a source coil, an ac driver with a first resistance, representing the equivalent output impedance of the ac driver, and a matching network. A current probe measures the magnitude signal of the instantaneous source coil current. A voltage probe measures the instantaneous ac driver voltage. A phase detector compares the phase of the instantaneous source coil current and the instantaneous ac driver voltage, and produces a first output signal proportional to the phase difference. A first amplifier compares the magnitude signal and a target signal, and produces an error signal proportional to the difference. A first compensation filter produces the control voltage that determines the ac driver supply voltage. A second amplifier amplifies the first output signal. A second compensation filter produces the control voltage that determines the impedance of a variable element in the source circuit.
摘要翻译：谐振无线电力系统包括具有源极线圈的源电路，具有第一电阻的交流驱动器，表示ac驱动器的等效输出阻抗和匹配网络。电流探头测量瞬时源线圈电流的幅度信号。电压探头测量瞬时交流驱动器电压。相位检测器比较瞬时源线圈电流和瞬时交流驱动器电压的相位，并产生与相位差成比例的第一输出信号。第一放大器将幅度信号和目标信号进行比较，并且产生与差成比例的误差信号。第一补偿滤波器产生确定交流驱动器电源电压的控制电压。第二放大器放大第一输出信号。第二补偿滤波器产生确定源电路中的可变元件的阻抗的控制电压。

9. 发明申请

US20140035383A1 DUAL-MODE WIRELESS POWER RECEIVER 有权
标题翻译：双模无线接收机
公开(公告)号：US20140035383A1
公开(公告)日：2014-02-06
申请号：US13956374
申请日：2013-08-01
申请人： MediaTek Singapore Pte. Ltd.
发明人： Patrick Stanley Riehl
IPC分类号： H01F38/14
CPC分类号： H02J50/12 , H01F38/14 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/80
摘要： A dual-mode receiver is provided that includes an electromagnetic resonator having one or more inductive elements that are arranged to form a receiver coil and a network of passive components arranged to form a matching network. The electromagnetic resonator includes a first selective frequency defined in a low frequency range and a second selective frequency defined in a high frequency range allowing for a rectification circuit to operate in both the high frequency range and low frequency range making maximum use of active circuits.
摘要翻译：提供了一种双模式接收器，其包括具有一个或多个感应元件的电磁谐振器，所述电感元件被布置成形成接收器线圈和布置成形成匹配网络的无源部件网络。电磁谐振器包括限定在低频范围内的第一选择频率和在高频范围内定义的第二选择频率，允许整流电路在高频范围和低频范围内工作，从而最大限度地利用有源电路。

10. 发明授权

US10277072B2 Wireless power receiver with programmable power path 有权
公开(公告)号：US10277072B2
公开(公告)日：2019-04-30
申请号：US14763829
申请日：2015-01-08
申请人： MediaTek Singapore Pte. Ltd.
发明人： Yung-Chih Yen , Patrick Stanley Riehl , Hasnain Akram , Anand Satyamoorthy
IPC分类号： H02J50/10 , H01F38/14 , H04B5/00 , H02J50/12 , H02J5/00 , H02J7/02 , H02M3/156 , H02M3/07 , H02M7/217 , G05F1/575 , H02M1/00 , H02M7/219 , G05F1/56
摘要： A wireless power receiver IC in which the power path can be reconfigured as either a low-dropout regulator (LDO), a switched-mode power supply (SMPS) or a power switch (PSW) is provided. All three modes share the same pass device to reduce die area and share the same output terminal to reduce pin. In an inductive wireless receiver, the power path can be reprogrammed on the fly to LDO or PSW mode or can be reprogrammed on the fly to SMPS or PSW mode. In a resonant or multi-mode wireless receiver, the power path can be reprogrammed on the fly to SMPS or PSW mode. Furthermore, to achieve high power transfer efficiency performance, using N-channel MOSFET as its pass device has better efficiency and smaller die area than P-channel MOSFET pass device.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式