Tesla 的開創性實驗為
共振式和感應式無線充電方法奠定基礎。
一群科技業領袖於 2008 年成立無線電力聯盟 (WPC),目前成員包括 Apple、Samsung、Nokia、Sony 和 Belkin 等重量級合作夥伴,其目標是創造一個通用的無線充電標準,能與智慧型手機到穿戴式裝置等各種裝置相容。WPC 支援 Qi (發音為「ㄑㄧ」) 無線充電標準。
Qi 源自中文字「气」(qi);繁體中文:「氣」,意指充滿活力的能量。Qi 標準自推出以來,經歷了多次改進,不斷提高效率並減少充電次數。獲得 Qi 認證表示裝置受到認可,運作正常且安全可用。在這項技術的發展過程中,Belkin 一直是設計符合 Qi 充電標準配件的領導者。
| Wireless standard | |
|---|---|
| Qi Wireless Charging | |
| Release date | 2008 |
| Developers | Different companies are credited, but the standard was mainly driven by the Wireless Power Consortium (WPC) |
| Compatibility | Certified Products Database |
| Charging speed | 5W to 15W |
| Certifications | Qi-certified |
| Special features | Compatible with a wide variety of devices from smartphones to wearables, versatile, and reliable |
| Wireless standard | Release date | Developers | Compatibility | Charging speed | Certifications | Special features |
|---|---|---|---|---|---|---|
| Qi Wireless Charging | 2008 | Different companies are credited, but the standard was mainly driven by the Wireless Power Consortium (WPC) | Certified Products Database | 5W to 15W | Qi-certified | Compatible with a wide variety of devices from smartphones to wearables, versatile, and reliable |
但隨著這種不易纏繞的體驗出現,充電領域發生了劇變。Belkin 於 2015 年加入 WPC,並在隨後的一年推出首款 Qi 認證充電器。此後,Qi 技術穩定進步,時至今日已成為無線充電的黃金標準,為相容性和性能確立基準。Qi 的優勢在於其多功能性和可靠性,更被廣泛應用於智慧型手機、耳機、AirPods 及其他裝置。
| Wireless standard | |
|---|---|
| MagSafe Wireless Charging | |
| Release date | 2020 |
| Developers | Apple |
| Compatibility | iPhone 12 lineup and up |
| Charging speed | Up to 15W |
| Certifications | MagSafe-certified |
| Special features | Magnetized connector for precise and convenient alignment, supports accessories like magnetic cases and chargers, features improved charging speeds, StandBy Mode offers enhanced functionality. |
| Wireless standard | Release date | Developers | Compatibility | Charging speed | Certifications | Special features |
|---|---|---|---|---|---|---|
| MagSafe Wireless Charging | 2020 | Apple | iPhone 12 lineup and up | Up to 15W | MagSafe-certified | Magnetized connector for precise and convenient alignment, supports accessories like magnetic cases and chargers, features improved charging speeds, StandBy Mode offers enhanced functionality. |
MagSafe 的附加功能加入了磁鐵,讓連接更牢固。其磁性接口位於 iPhone 背面,因此可將手機對準 MagSafe 充電器。相比傳統的 Qi 充電方式,這樣對準和充電更加方便。除了磁力之外,MagSafe 的另一大優勢是其充電速度比多數 Qi 充電板更快,一些型號甚至能提供高達 15 瓦特的功率。
| Wireless standard | |
|---|---|
| Magnetic Qi Wireless Charging | |
| Release date | 2020 |
| Developers | Wireless Power Consortium (WPC) |
| Compatibility | iPhone 12 lineup and up |
| Charging speed | 5W to 10W |
| Certifications | Qi-certified |
| Special features | Compatible with MagSafe |
| Wireless standard | Release date | Developers | Compatibility | Charging speed | Certifications | Special features |
|---|---|---|---|---|---|---|
| Magnetic Qi Wireless Charging | 2020 | Wireless Power Consortium (WPC) | iPhone 12 lineup and up | 5W to 10W | Qi-certified | Compatible with MagSafe |
WPC 計劃強制要求將強度和磁吸強度等磁力元素加入認證流程中受測的要素。目前尚無適用於磁吸式 Qi 產品的磁力標準,因此建議只購買值得信賴的品牌。
| Wireless standard | |
|---|---|
| Qi Wireless Charging | |
| Release date | 2008 |
| Developers | Different companies are credited, but the standard was mainly driven by the Wireless Power Consortium (WPC) |
| Compatibility | Certified Products Database at www.wirelesspowerconsortium.com/products |
| Charging speed | 5W to 15W |
| Certifications | Qi-certified |
| Special features | Compatible with a wide variety of devices from smartphones to wearables, versatile, and reliable |
| MagSafe Wireless Charging | |
| Release date | 2020 |
| Developers | Apple |
| Compatibility | iPhone 12 lineup and up |
| Charging speed | Up to 15W |
| Certifications | MagSafe-certified |
| Special features | Magnetized connector for precise and convenient alignment, supports accessories like magnetic cases and chargers, features improved charging speeds, StandBy Mode offers enhanced functionality. |
| Magnetic Qi Wireless Charging | |
| Release date | 2020 |
| Developers | Wireless Power Consortium (WPC) |
| Compatibility | iPhone 12 lineup and up |
| Charging speed | 5W to 10W |
| Certifications | Qi-certified |
| Special features | Compatible with MagSafe |
| Qi2 Wireless Charging | |
| Release date | 2023 |
| Developers | Wireless Power Consortium (WPC) |
| Compatibility | Select iPhone 12-15 and other MagSafe compatible devices and available to Android manufacturers to integrate into their future devices |
| Charging speed | Up to 15W |
| Certifications | Qi2-certified |
| Special features | Simultaneously charge multiple devices and electronics like laptops and tablets, universal compatibility, faster charging speeds |
| Wireless standard | Release date | Developers | Compatibility | Charging speed | Certifications | Special features |
|---|---|---|---|---|---|---|
| Qi Wireless Charging | 2008 | Different companies are credited, but the standard was mainly driven by the Wireless Power Consortium (WPC) | Certified Products Database at www.wirelesspowerconsortium.com/products | 5W to 15W | Qi-certified | Compatible with a wide variety of devices from smartphones to wearables, versatile, and reliable |
| MagSafe Wireless Charging | 2020 | Apple | iPhone 12 lineup and up | Up to 15W | MagSafe-certified | Magnetized connector for precise and convenient alignment, supports accessories like magnetic cases and chargers, features improved charging speeds, StandBy Mode offers enhanced functionality. |
| Magnetic Qi Wireless Charging | 2020 | Wireless Power Consortium (WPC) | iPhone 12 lineup and up | 5W to 10W | Qi-certified | Compatible with MagSafe |
| Qi2 Wireless Charging | 2023 | Wireless Power Consortium (WPC) | Select iPhone 12-15 and other MagSafe compatible devices and available to Android manufacturers to integrate into their future devices | Up to 15W | Qi2-certified | Simultaneously charge multiple devices and electronics like laptops and tablets, universal compatibility, faster charging speeds |
Qi2 的一大優勢是能支援更高 Power Delivery 的「遠距」充電,最高可提供 100 瓦特電力。這能讓您為多部裝置同步充電,並能為筆記型電腦和平板電腦等高耗能的電子產品供電。然而,智慧型手機的無線充電目前尚未提供 100 瓦特功率。另一項重要進步是引入了「中距離」充電技術,讓您的充電器和裝置不需要直接接觸,也能獲得最高 15 瓦特的充電效能。這項技術非常適合耳機和智慧型手錶這類搭載小型充電板的裝置。
其他增強功能包括充電速度更快、效率提高,並朝向通用相容性發展。當其他裝置採用 Qi2 標準時,可望實現真正的通用相容性,以下是目前相容的裝置清單。通用相容性將消除對不同充電器的需求,確保用戶可以用相同的充電板或充電座為多部裝置充電,更無需擔心標準和通訊協定的問題。Qi2 透過最佳化電力傳輸來提升效率,令裝置能夠快速充電,同時不會浪費過多電力。這項技術的未來設計在速度、便利性和效率方面都凌駕於前代技術之上。
* 基於內部測試。Belkin Qi2 15W 無線充電器將 iPhone 15 由 0% 充電至 50% 的速度,較 Qi 5W 無線充電器快 2 倍,較 Qi 7.5W 無線充電器快 1.5 倍。充電時間視乎環境因素而有所不同,結果可能有差異。