無線電源傳送应用

無線電源傳送应用

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公司於CES 2018展覽展出基於氮化鎵電晶體並可提供達300 W功率的無線充電智慧桌子

Reduce Time to Market – Wireless Power System Demonstration Kits

EPC提供一系列發射器及接收器的參考設計,從對單個設備進行充電,以至在大面積範圍對多個設備同時進行充電都可以實現得到。

EPC參考設計採用工作在符合AirFuel聯盟標準的6.78 MHz頻率的eGaN® FET及積體電路,使得無線充電系統可以實現最高效率。

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 device receive unit(s). In addition, power amplifiers and device receive units are available to purchase individually.

    Device Receive Unit
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標準的演示套件。此外,也有多模演示套件,其包含的單個放大器,可同時符合AirFuel Class 2標準及Qi電感式標準。

無線充電放大器

客戶可以在EPC的放大器電路板採用他們自己設計的線圈。

  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

我們的接收器是專為希望快速把消費電子產品推出市場的客戶而設。

  AirFuel Category Power Level VOUT IOUT Device Receive Board Example Application
Device Receive Unit 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)

面向無線充電應用的eGaN FET及積體電路

由於EPC公司的氮化鎵元件可以在高頻工作、傳輸高功率及具備小型、纖薄的外型尺寸,它是無線充電應用的最理想元件。

由於eGaN FET及積體電路具備低電容、沒有反向恢復及低導通電阻等優勢,因此工作損耗低,放大器的效率因此可以更高,而且可保持低EMI。

產品型號 配置 VDS RDS(ON)(mΩ)
(VGS = 5 V)最大值
M最大脈衝峰值電流 ID(A)
(25°C, Tpulse = 300µs)
封装
(mm)
Wireless Power Function
EPC2108 具同步啓動的雙路 60 240
240
3300
5.5
5.5
0.5
BGA 1.35 x 1.35 Main power stage in amplifier
EPC2107 具同步啓動的雙路 100 390
390
3300
3.8
3.8
0.5
BGA 1.35 x 1.35 Main power stage in amplifier
EPC2038 帶閘極二極體的單路 100 3300 0.5 BGA 0.9 x 0.9 Synchronous bootstrap in amplifier
EPC2037 單路 100 550 2.4 BGA 0.9 x 0.9 Main power stage in amplifier /
Synchronous bootstrap in amplifier
EPC8010 單路 100 160 7.5 LGA 2.1 x 0.85 Main power stage in amplifier
EPC2036 單路 100 73 18 BGA 0.9 x 0.9 SEPIC pre-regulator
EPC2007C 單路 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 單路 200 100 22 LGA 1.7 x 0.9 Main power stage in amplifier
EPC2019 單路 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

今天的技術能力已經可以構建無線充電的未來

無綫電源手册

實現無線充電的一個主要挑戰是發射器的設計。本教科書旨在闡述設計無線充電放大器所遇到的各種挑戰,例如EMI、如何設計多模系統及提升效率。

《無線電源傳輸三部曲》

《無線電源傳輸三部曲》由三部份彙編而成的,分別是無線電源傳輸的基本原理、無線傳輸系統及應用。該書售價為19歐元,可以從 Würth Elektronik eiSos 訂購或從書店購買。

基於氮化鎵技術的無線充電應用演示

桌面上的設備如何實現無線充電
這就是基於無線充電技術的電視機!

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