-
公开(公告)号：US20150364928A1
公开(公告)日：2015-12-17
申请号：US14763829
申请日：2015-01-08
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 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.
摘要翻译： 提供其中电力路径可以被重新配置为低压差稳压器（LDO），开关模式电源（SMPS）或电源开关（PSW）的无线电力接收器IC。 所有三种模式共享相同的通过器件，以减少管芯面积并共享相同的输出端子以减少引脚。 在感应式无线接收机中，电源路径可以快速重新编程为LDO或PSW模式，或者可以在飞行中重新编程为SMPS或PSW模式。 在谐振或多模式无线接收器中，电源路径可以在飞行中重新编程为SMPS或PSW模式。 此外，为了实现高功率传输效率性能，使用N沟道MOSFET作为其通过器件比P沟道MOSFET通过器件具有更好的效率和更小的管芯面积。
-
公开(公告)号：US10411831B2
公开(公告)日：2019-09-10
申请号：US14215084
申请日：2014-03-17
发明人： William Plumb , Zhen Wang , Zoran Zvonar , Patrick Stanley Riehl , Anand Satyamoorthy , Philip Frank Tustin
IPC分类号： H04L1/00 , H04L25/06 , H04L25/03 , H04L7/00 , H03M5/12 , H03M5/14 , H03M13/15 , H03M13/19 , H04L7/04
摘要： A wireless charging in-band communication system includes a channel encoding for message error correction and detection. A modulation module performs biphase modulation for DC balanced signals and impedance switching to change reflected impedance seen by the source. A synchronization module prepends the message with a synchronization sequence having Golay complementary codes. A receiver module receives the message from the transmitter module. A preamble detection block has a Golay complementary code correlator used for message detection, synchronization, and equalization coefficient estimation and selection. A decoding module that performs biphase demodulation with error correction with a DC offset being estimated as the average value of the signal over the length of the message before channel decoding. The decoding module performs equalization, error correction and detection channel decoding.
-
公开(公告)号：US10177602B2
公开(公告)日：2019-01-08
申请号：US15037051
申请日：2015-01-08
IPC分类号： H02M3/156 , H02J50/12 , H01F38/14 , H02J5/00 , H02J7/02 , H02M3/07 , H02M7/217 , H04B5/00 , G05F1/575 , G05F1/56 , H02M1/00 , H02M7/219
CPC分类号： H02J50/12 , G05F1/56 , G05F1/575 , 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.
-
14.发明授权公开(公告)号：US10014724B2
公开(公告)日：2018-07-03
申请号：US14355212
申请日：2013-09-27
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.
-
公开(公告)号：US09837848B2
公开(公告)日：2017-12-05
申请号：US14771568
申请日：2014-03-14
CPC分类号： H02J50/90 , H02J7/0021 , H02J7/0027 , H02J7/042 , H02J17/00 , H02J50/12 , H02J50/40 , H02J50/60 , H02J50/80
摘要： A wireless charging system is provided that includes a charger portion that receives one or more portable elements for charging wirelessly. The charger portion controls the amount of power needed to charge the one or more portable elements. An inband communication module receives inband communications with the one or more portable elements using a random access mode. The charger portion utilizes the inband communications to determine how much power is needed, via energy based reporting, to charge the one or more portable elements that avoids conveying identification information.
-
公开(公告)号：US10148096B2
公开(公告)日：2018-12-04
申请号：US14791918
申请日：2015-07-06
IPC分类号： H02J5/00 , H02J7/02 , B60L11/18 , H02J7/04 , H02J50/10 , H02J50/80 , H02J17/00 , H02J7/00 , H02M1/00 , H02M7/02
摘要： Some embodiments relate to a system that includes a first device which is a wireless power transmitter or mobile device and a power adapter external to the first device. The power adapter is configured to receive a control signal and to control a DC output voltage of the power adapter based upon the control signal. The first device is configured to send the control signal to the power adapter.
-
公开(公告)号：US09954400B2
公开(公告)日：2018-04-24
申请号：US15037051
申请日：2015-01-08
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.
-
18.发明申请公开(公告)号：US20160006267A1
公开(公告)日：2016-01-07
申请号：US14791918
申请日：2015-07-06
IPC分类号： H02J5/00
CPC分类号： H02J5/00 , B60L11/1812 , B60L11/182 , B60L11/1838 , B60L2210/30 , H02J5/005 , H02J7/025 , H02J7/04 , H02J17/00 , H02J50/10 , H02J50/80 , H02J2007/0096 , H02M7/02 , H02M2001/0048 , Y02T10/7005 , Y02T10/7072 , Y02T10/7241 , Y02T90/121 , Y02T90/122 , Y02T90/127 , Y02T90/128 , Y02T90/14 , Y02T90/163
摘要： Some embodiments relate to a system that includes a first device which is a wireless power transmitter or mobile device and a power adapter external to the first device. The power adapter is configured to receive a control signal and to control a DC output voltage of the power adapter based upon the control signal. The first device is configured to send the control signal to the power adapter.
摘要翻译： 一些实施例涉及包括作为无线电力发射器或移动设备的第一设备和在第一设备外部的电源适配器的系统。 电源适配器被配置为基于控制信号接收控制信号并控制电源适配器的DC输出电压。 第一个设备配置为将控制信号发送到电源适配器。
-
19.发明申请OPEN-CIRCUIT IMPEDANCE CONTROL OF A RESONANT WIRELESS POWER RECEIVER FOR VOLTAGE LIMITING 有权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
IPC分类号： 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。
-
20.发明申请公开(公告)号：US20140036560A1
公开(公告)日：2014-02-06
申请号：US13954969
申请日：2013-07-30
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。
-
-
-
-
-
-
-
-
-
搜索结果
28 条记录 (耗时 0.027 秒)
