TI公司的bq51013是用于手提應(yīng)用的無線電源傳輸?shù)慕邮掌?AC/DC效率達93%,全同步整流器, WPC v1.0兼容的通信控制,最大輸入功率20W,主要用于WPC兼容的接收器,手機和智能手機,數(shù)碼相機,手提媒體播放器(PMP)和手持設(shè)備.本文介紹了bq51013主要特性, 方框圖, 無線電源聯(lián)盟(WPC或Qi)電感電源系統(tǒng)框圖以及無線電源接收器和電源系統(tǒng)框, bq51013EVM-725評估模塊電路圖和材料清單(BOM), 元件布局圖.
The bq51013 is an advanced, integrated, receiver IC for wireless power transfer in portable applications. The device provides the AC/DC power conversion while integrating the digital control required to comply with the Qi v1.0 communication protocol. Together with the bq500110 transmitter controller, the bq51013 enables a complete contact-less power transfer system for a wireless power supply solution. By utilizing near-field inductive power transfer, the receiver coil embedded in the portable device receives the power transmitted by the transmitter coil via mutually coupled inductors. The AC signal from the receiver coil is then rectified and regulated to be used as a power supply for down-system electronics.
bq51013主要特性:
Integrated Wireless Power Receiver Solution with a 5V Regulated Supply
93% Overall Peak AC-DC Efficiency
Full Synchronous Rectifier
WPC v1.0 Compliant Communication Control
Output Voltage Conditioning
Only IC Required Between RX coil and 5V DC Output Voltage
Dynamic Rectifier Control for Improved Load Transient Response
Supports 20V Max Input
Low-power Dissipative Rectifier Overvoltage Clamp (VOVP = 15V)
Thermal Shutdown
Single NTC/Control Pin for Optimal Safety and I/O Between Host
Stand-alone Digital Controller
1.9 × 3mm WCSP or 4.5 × 3.5mm QFN Package
bq51013應(yīng)用:
WPC Compliant Receivers
Cell Phones, Smart Phones
Headsets
Digital Cameras
Portable Media Players
Hand-held Devices
圖1.bq51013簡化方框圖
圖2.無線電源聯(lián)盟(WPC或Qi)電感電源系統(tǒng)框圖
圖3. bq51013用作無線電源接收器和電源系統(tǒng)框圖
圖4.采用bq51013帶適配器電源通路的無線電源接收器和電源系統(tǒng)框圖
bq51013EVM-725評估模塊
The bqTESLA™ wireless power evaluation kit from Texas Instruments is a high-performance, easy-to-use development kit for the design of wireless power solutions. Consisting of a single-channel transmitter and 5-V power supply receiver and associated magnetics, the kit enables designers to speed the development of their end-applications.
圖5. bq51013EVM-725評估模塊外形圖
圖6. bq51013EVM-725評估模塊電路圖
bq51013EVM-725評估模塊材料清單(BOM):
圖7. bq51013EVM-725評估模塊元件布局圖
詳情請見:
http://focus.ti.com/lit/ds/symlink/bq51013.pdf
和
http://focus.ti.com/lit/ug/slvu447/slvu447.pdf
