無線充電

無線電池充電或無線電感式充電,是不需透過實體電線連接而將電能從充電器傳輸到裝置的方法。無線充電的原理是磁諧振,或電感式電力傳輸 (IPT)。這項程序是透過使用線圈來引發磁場,或將能量從某處傳輸到另一處,如此在兩個物件之間傳輸電流。能量從來源傳輸到接收器,而此接收器通常用來為裝置內的電池充電。


電源電壓轉換為高頻率交流電流,然後以發送器電路傳送到發送器線圈。交流電流會在發送器線圈中引發隨時間變化的磁場。在發送器線圈中流動的電流會引發磁場,而此磁場會延伸到接收器線圈。磁場在裝置的接收器線圈中產生電流。在接收器線圈中流動的電流會由接收器電路轉換為直流電流 (DC),然後用於為電池充電。在發送器與接收器線圈之間傳輸能量流的程序,也稱為磁性或諧振耦合,這是由兩個線圈以相同頻率諧振而達成。


電力透過這種程序穿過氣隙來安全傳輸。也穿過線圈之間可能有的非金屬物件。例如木材、塑膠或花崗石。這使得無線/電感式充電非常適合許多可攜式裝置,例如行動電話和其他無線應用。


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Wireless Power Transmitter for Automotive Applications

Smart Wireless Charging with NFC (and Qi) - NXP® at MWC 2014

Smart wireless charging with NXP®: Flexible architectures

精選產品

Demonstration Board, Power Management, Wireless Charger, LTC4123

立即選購

Battery Charger for 1 Cell of NiMH battery, 5V input, 28 mA charge, DFN-6

立即選購

EVAL BOARD, WIRELESS PWR RECEIVER

立即選購

目前無法顯示合約定價。所列價格為標準零售價格,處理下單時將會套用合約定價。

  製造商零件編號 訂購代碼 製造商 / 描述
庫存量 項目價格
價格
數量
MAX77950EVKIT#
MAX77950EVKIT# - Evaluation Kit, MAX77950 Advanced Wireless Power Receiver IC, WPC/PMA Compliance

2762631

MAXIM INTEGRATED PRODUCTS

Evaluation Kit, MAX77950 Advanced Wireless Power Receiver IC, WPC/PMA Compliance

EVAL BOARD, WIRELESS PWR RECEIVER; Silicon Manufacturer:Maxim Integrated Products; Silicon Core Number:MAX77950; Kit Application Type:Wireless Development; Application Sub Type:Wireless Power Receiver; Kit Contents:Eval Board MAX77950, Planar Coil, S/W;

開放補貨預購

+ 查看存貨和交貨期
2020/9/7 當週起有更多存貨可供選購 有貨時聯繫我

限制的項目
MWCT1101CLH
MWCT1101CLH - Wireless Charging Controller, 32 Bit DSP, 3 V to 3.6 V, LQFP-64

2401867

NXP

Wireless Charging Controller, 32 Bit DSP, 3 V to 3.6 V, LQFP-64

WIRELESS POWER TRANSMITTER, LQFP-64; Wireless Charging IC Type:Transmitter; Wireless Power Standard:WPC 1.1.2 Compliant; Power Level:5W; Operating Temperature Range:-40°C to 85°C; IC Package Type:LQFP; No. of Pins:64Pins; Product Range:-; MSL:MSL 3 - 168

開放補貨預購

+ 查看存貨和交貨期
2020/10/19 當週起有更多存貨可供選購 有貨時聯繫我

限制的項目
LTC4125EUFD#PBF
LTC4125EUFD#PBF - Wireless Power Transmitter, 3 V to 5.5 V in, QFN-20

2522858

LINEAR TECHNOLOGY

Wireless Power Transmitter, 3 V to 5.5 V in, QFN-20

WIRELESS PWR TX, 5.5V, QFN-20; IC Function:Wireless Power Transmitter; Supply Voltage Min:3V; Supply Voltage Max:5.5V; IC Package Type:QFN; No. of Pins:20Pins; Operating Temperature Min:-40°C; Operating Temperature Max:125°C; Product Range:-; Automotive

无库存

限制的項目
760 308 MP
760 308 MP - Evaluation Kit, Wireless Power Design, Qi v1.2.2 Compliant, Transmitter Module, Receiver Module

2706219

ROHM

Evaluation Kit, Wireless Power Design, Qi v1.2.2 Compliant, Transmitter Module, Receiver Module

EVAL BOARD, WIRELESS POWER TR & RX; Silicon Manufacturer:Rohm Semiconductor; Silicon Core Number:BD57015GWL, B57020MWV, ML610Q772, BD9E151; Kit Application Type:Wireless Development; Application Sub Type:Wireless Power Transmitter & Receiver; Kit Content

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限制的項目
STEVAL-ISB039V1T
STEVAL-ISB039V1T - Evaluation Board, 1W Wireless Power Transmitter, Based on STM32F0 MCU

2668491

STMICROELECTRONICS

Evaluation Board, 1W Wireless Power Transmitter, Based on STM32F0 MCU

EVAL BOARD, WIRELESS POWER TX; Kit Application Type:Wireless - Battery Charger; Application Sub Type:Wireless Power Transmitter; Silicon Core Number:STM32F0; Silicon Manufacturer:STMicroelectronics; Kit Contents:Eval Board STM32F0; Product Range:-; SVHC:

不再生產

限制的項目