无线电源传送应用

无线电源传送应用

EPC Wireless Power Solutions – Multiple Device, Large-Surface-Area Power Made Easy

Wireless power is ready to be incorporated into our daily lives. Transmitters can be placed in furniture, walls, floors, to efficiently and economically power or charge our electronic and electrical devices over large areas and to multiple devices.

Magnetic resonance technology is the key to ubiquitous implementation – enabling large surface area transmission, spatial freedom for placement of receiving devices, and the ability to power multiple devices simultaneously.

Total System Efficiency

Video Gallery

EPC公司于CES 2018展览展出基于氮化镓晶体管并可提供达300 W功率的无线充电智能桌子

Reduce Time to Market – Wireless Power System Demonstration Kits

EPC提供一系列发射器及接收器的参考设计,从对单个设备进行充电,以至在大面积范围对多个设备同时进行充电都可以实现得到。

EPC参考设计采用工作在符合AirFuel联盟标准的6.78 MHz频率的eGaN® FET及集成电路,使得无线充电系统可以实现最高效率。

GaN enables high efficiency for both the low frequency (Qi) and high frequency (AirFuel) standards supporting a lower cost, single transmit amplifier solution that can wirelessly charge devices regardless of the standard used in the receiving device.

All EPC wireless power demonstration kits contain a transmit unit (wireless power amplifier and transmit coil) and 接收器(s). In addition, power amplifiers and 接收器s are available to purchase individually.

    接收器
EPC9513
Category 3 (6.5 W)
EPC9513
Category 3 (6.5 W)

EPC9515
Category 4 (13 W)
EPC9513
Category 3 (6.5 W)

EPC9514
Category 5 (27 W)
Category 3 (6.5 W)
Qi (5 W)
Typical Application smart phone,
Digital Assitant,
any 1 A USB device
tablet,
any 2 A USB device
small form factor laptop,
19 V lamp
smart phone,
Digital Assitant,
any 1 A USB device
Transmit Unit
(amplifier)
EPC9510
Class 2 (10 W)
EPC9127
Class 2 Demo Kit
     
EPC9509
Class 3 (16 W)
  EPC9128
Class 3 Demo Kit
   
EPC9512
Class 4 (33 W)
    EPC9129
Class 4 Demo Kit
 
EPC9511
Multi-Mode (10 W)
      EPC9121
Multi-Mode Demo Kit
EPC wireless power demonstration kit
EPC9128, 16 W Class 3 kit

演示套件包含符合AirFuel Class 2至Class 4标准的演示套件。此外,也有多模演示套件,其包含的单个放大器,可同时符合AirFuel Class 2标准及Qi电感式标准。

无线充电放大器

客户可以在EPC的放大器电路板采用他们自己设计的线圈。

  AirFuel Class Power Level Power Amplifier Board Topology
Transmit Power
(amplifier)
2 10 W EPC9510 ZVS Class D
2 10 W EPC9051 Class E
3 16 W EPC9509 ZVS Class D
3 16 W EPC9052 Class E
4 33 W EPC9512 ZVS Class D
4 33 W EPC9053 Class E
5 60 W EPC9065 ZVS Class D
5 60 W EPC9083 Class E
Multi-Mode 10 W (AF)
5 W (Qi)
EPC9511 ZVS Class D
Wireless Power Demo Board
EPC9512 Amplifier Board

接收器s

我们的接收器是专为希望快速把消费电子产品推出市场的客户而设。

  AirFuel Category Power Level VOUT IOUT Device Receive Board Example Application
接收器 3 5 W 5 1 EPC9513 smart phone
4 10 W 5 2 EPC9515 tablet, phablet
5 27 W 19 1.4 EPC9514 laptop
EPC9513 Receive Unit
EPC9513 Receive Unit

Examples of Device Receive Coils

WiPo personal assistant
Personal assistant
(5 V, 5 W)
Wireless desk lamp
Office desk lamp
(12 V, 6 W)
Wireless powe</span>r monitor
Computer monitor
(100 V, 22W)

面向无线充电应用的eGaN FET及集成电路

由于EPC公司的氮化镓器件可以在高频工作、传输高功率及具备小型、纤薄的外型尺寸,它是无线充电应用的最理想器件。

由于eGaN FET及集成电路具备低电容、没有反向恢复及低导通电阻等优势,因此工作损耗低,放大器的效率因此可以更高,而且可保持低EMI。

器件型号 配置 VDS RDS(on)(mΩ)
(VGS = 5 V)最大值
最大脉冲峰值电流ID(A)
(25°C, Tpulse = 300µs)
封装
(mm)
Wireless Power Function
EPC2108 具同步启动的雙路 60 240
240
3300
5.5
5.5
0.5
BGA 1.35 x 1.35 Main power stage in amplifier
EPC2107 具同步启动的雙路 100 390
390
3300
3.8
3.8
0.5
BGA 1.35 x 1.35 Main power stage in amplifier
EPC2038 带栅极二极管的单路 100 3300 0.5 BGA 0.9 x 0.9 Synchronous bootstrap in amplifier
EPC2037 单路 100 550 2.4 BGA 0.9 x 0.9 Main power stage in amplifier /
Synchronous bootstrap in amplifier
EPC8010 单路 100 160 7.5 LGA 2.1 x 0.85 Main power stage in amplifier
EPC2036 单路 100 73 18 BGA 0.9 x 0.9 SEPIC pre-regulator
EPC2007C 单路 100 30 40 LGA 1.7 x 1.1 Main power stage in amplifier
EPC2115 Dual with Integrated Driver 150 88 18 BGA 2.9 x 1.1 Main power stage in amplifier
EPC2012C 单路 200 100 22 LGA 1.7 x 0.9 Main power stage in amplifier
EPC2019 单路 200 50 42 LGA 2.8 x 0.95 Main power stage in amplifier /
Boost FET in receive circuit
EPC2112 Single with Integrated Driver 200 40 40 BGA 2.9 x 1.1 Main power stage in amplifier
EPC Gallium Nitride FETs for Wireless Power Applications

今天的技术能力已经可以构建无线充电的未来

无线电源手册

实现无线充电的一个主要挑战是发射器的设计。本教科书旨在阐述设计无线充电放大器所遇到的各种挑战,例如EMI、如何设计多模系统及提升效率。

《无线电源传输三部曲》

《无线电源传输三部曲》由三部分汇编而成的,分别是无线电源传输的基本原理、无线传输系统及应用。该书售价为19欧元,可以从 Würth Elektronik eiSos 订购或从书店购买。

相关新闻