Diagnostic chargers, battery analyzers, and rapid testers
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Batteries and chargers go hand in hand like horse and carriage. We offer complete solutions from design to manufacturing and offer Cloud Analytics with smart packs.
Wireless chargers by Cadex serve mostly specialty applications.
Wireless charging is classified into inductive charging, resonance charging and radio (RF) charging. Most portable devices use inductive charging with transmit and receive coils in close proximity. The table lists the most common standards. Also see BU-412.
| WPC or Qi (Wireless Power Consortium) | PMA(Power Matters Alliance) | AirFuel, formerly A4WP(Alliance for Wireless Power) | |
|---|---|---|---|
| Established | 2008, Qi was the first wireless charging standard. | 2012, by Procter & Gamble and Powermat. | 2005, 2012 by MIT, Intel, Samsung, Qualcomm. |
| Technology | Inductive charging, 100-205kHz; coil distance up to 5mm. | Inductive charging, 277-357kHz; similar to Qi. | Resonant charging; loosely coupled; charges multiple devices simultaneously. |
| Markets | Wide global use for portable devices. | Competitive with Qi. (PWA and AirFuel merged.) | Wearables, medical, IoT and low power industrial devices. |
| Members & Companies | Samsung, Panasonic, Sony, LG, TI, HTC, Motorola, Nokia, Philips, Verizon, BMW, Audi, Daimler, VW, Porsche, Toyota, Jeep, etc. | Powermat, Samsung, TDK LG, TI, AT&T, Duracell, WiTricity, Starbucks, Teavana, Huawei, FCC, Energy Star, Flextronics. | Qualcomm, TediaTek, Intel, LG, HTC, Samsung, Deutsche Telecom, HP, Dell, Huawei. 3M, Motorola, Sony, Sharp. |
WPC or Qi (Wireless Power Consortium)
2008, Qi was the first wireless charging standard.
Inductive charging, 100-205kHz; coil distance up to 5mm.
Wide global use for portable devices.
Samsung, Panasonic, Sony, LG, TI, HTC, Motorola, Nokia, Philips, Verizon, BMW, Audi, Daimler, VW, Porsche, Toyota, Jeep, etc.
PMA(Power Matters Alliance)
2012, by Procter & Gamble and Powermat.
Inductive charging, 277-357kHz; similar to Qi.
Competitive with Qi. (PWA and AirFuel merged.)
Powermat, Samsung, TDK LG, TI, AT&T, Duracell, WiTricity, Starbucks, Teavana, Huawei, FCC, Energy Star, Flextronics.
AirFuel, formerly A4WP(Alliance for Wireless Power)
2005, 2012 by MIT, Intel, Samsung, Qualcomm.
Resonant charging; loosely coupled; charges multiple devices simultaneously.
Wearables, medical, IoT and low power industrial devices.
Qualcomm, TediaTek, Intel, LG, HTC, Samsung, Deutsche Telecom, HP, Dell, Huawei. 3M, Motorola, Sony, Sharp.