無線充電詳解

1、無線充電詳解 英文版Theoryadvantage：safe, durable, convenientdisadvantage：low efficiency, high cost, unstable, limited distanceMagnetic Induction(電磁感應電磁感應)Magnetic Resonance(電磁共振電磁共振)Radio Reception(無線電波無線電波)Capacitive coupling(電場耦合電場耦合)Transmission power1-10WKW100mW1-10W Transmission distance1mm-10cm1cm-10m1

2、0m1mm-10cmEfficiency80%50%38%70-80%ApplicationSmart phone; TabletAutomobilelesslessTheoryTheoryTheoryEfficiencyWireless charging efficiency：45%82%StandardQi standardWPC(Wireless Power Consortium) ：Qi encompasses the benefits of both inductive and resonant charging technologies in a versatile standar

3、d. Qi products are incorporating both to offer the innovative services and features in the most energy-efficient and cost-effective possible. Most of the smart phone wireless chargers are using Qi standard.PMA standardPower Matters Alliance：Focus on inductive charging. Rezence standardA4WP (Alliance

4、 for Wireless Power) ：Base on the principles of magnetic resonance. On June 1, 2015, A4WP and PMA, have announced the signing of the merger agreement between the two organizations. The transaction establishes a core charging standard supporting a wide range of consumer, medical, military and industr

5、ial applications.ProductBrand: Incipio Ghost80USDType: 220Input: DC 5V, 4AOutput: 5V, 3.4A Size: 89mmx178mmx15mmCharges 2 Qi-compatible devices and an extra device via USBIntegrated 2.4A USB charging port (charges a third device)Brand: Patriot Memory20USDType: Induction ChargerInput: DC 5VOutput: 5V

6、, 1A Size: 102mmx10.2mmPatriot Fuel iON Magnetic Charging PadProductBrand: RAVPower40USDInput: DC 5V, 1.5A Output: 5V, 1A Size: 145mmx79mmx11mmColor：black、whiteRP-WCN11: Built in 4800mAh battery backup Compatible with any QI-enabled LED light display charging indicatorProductBrand: Duracell Powermat

7、40USDSize: 265mmx86mmx146mmPowermat for 2 Devices, Wireless Case for iPhone 4/4S, a Portable Backup BatteryCharge at home or on the go in the palm of your handWireless Case Portable Backup BatteryProductBrand: Belkin40USDInput: 5V/2.1AOutput: 5V/1ASize: 125mmx125mmx10mmQi Wireless Charging PadSoft charging pad prevents scratching and slippingIncludes wall adapter and micro-USB-to-USB cableProductBrand: NILLKIN120RMBInput: 5V/2AOutput: 5V/1ASize: 100mmx10.4mmTransmission distance: 6mmEfficiency: 70%Color：black、whiteProductBr