Wireless charging is the transfer of energy from a power source to a recipient device without using wires or cables. It is a reliable and convenient method to charge consumer devices. Wireless charging of electronic devices is commonly done via inductive charging technology which uses electromagnetic induction to power devices. Magnetic coupling is another form of wireless charging technology that increases efficiency by allowing power transmission over longer distances. This article lists trending wireless charging products on everything RF in November 2021.
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5 W Qi-Compliant Inductive Wireless Power Receiver
The STWLC68 from ST Microelectronics is a Wireless Power Receiver IC suitable for portable applications and capable of managing up to 5 W of output power. The chip has been designed to support Qi 1.2.4 specifications for inductive communication protocols and Base Power Profile (BPP). This receiver provides 3.6 to 20 V of programmable output voltage with 25 mV resolution. Read more.
15 W Qi Compatible Automotive In-Cabin Wireless Charging Transmitter
The Beast 2.0 from Spark Connected is an Automotive In-cabin Wireless Charger that meets Qi v1.3 requirements. It utilizes TDK’s latest pattern coil technology and delivers up to 15 W of power. The charger provides class-leading EMC performance, a wide input supply range with continuous charging even during vehicle stop/start events, and has Foreign Object Detection (FOD). Read more.
20 W Qi-compliant Wireless Power Transfer Transmitter Coil
The 760308105214 from Wurth Elektronik is a Qi-compliant Wireless Power Transfer Transmitter Coil with an Inductance of 6.3 µH and a typical Q factor of 15. It supports up to 20 W of power and draws 1.5 A of rated current. This charging coil has a DC resistance of 245 mOhm @ 20° C and a self-resonant frequency of 25 MHz. It measures 19 x 0.8 mm and operates over a wide temperature range from -20° to 105° C. Read more.
70 W Qi-Compliant Wireless Charging Receiver
The STWLC98 from STMicroelectronics is a Wireless Charging Receiver that supports Qi specifications 1.2.4 and 1.3 for the inductive communication protocol with Extended Power Profile (EPP). It is based on the proprietary ST Super Charge (STSC) protocol for fast charging. It can deliver an output power of up to 70 W and can also operate as a 15 W wireless transmitter depending on the type of wireless charging coil used. Read more.
30 W Wireless Charging Receiver with Integrated Capacitor Divider and Wattshare Technology
The P9412 from Renesas is a Single Chip Wireless Power Receiver IC for 30 W applications. The device can be configured to receive or transmit an AC power signal through magnetic induction. It has a 24kB Multiple-time programmable (MTP) non-volatile memory and supports proprietary fast charging modes with authentication. This IC can be controlled via GPIO and I2C interfaces. Read more.
60 W Wireless Power Transmitter/Receiver IC
The P9418 from Renesas is a highly-integrated single-chip 60 W wireless power transmitter/receiver IC (TRx). The IC can be configured to receive or transmit an AC power signal through magnetic induction. It integrates a highly efficient synchronous full bridge rectifier and control circuitry that modulates the load to send message packets to the transmitter. Read more.
300 W Wireless Power Transmitter Controller IC
The WP300TX01 from Microchip is a Wireless Power Transmitter Controller IC that can transfer up to 300 W of power wirelessly. It implements a reliable Foreign Object Detection (FOD) Scheme and enables system efficiency of up to 90%. This transmitter controller provides overvoltage, overcurrent, Undervoltage, overpower, and overtemperature protection. Read more.
15 W Wireless Charging Transmitter ICs for Automotive Applications
The MWCT2xx3A Series from NXP Semiconductors are Wireless Charging Transmitter ICs for automotive applications. They have two isolated channels that can be used to charge two phones simultaneously. These ICs deliver transmit 15 W of power and have an optimized charging area with a flexible number of coils to avoid blind spots for every channel. They are WPC Qi v1 2.4 and AEC-Q100 certified. Read more.
50 W Qi-Compliant Inductive Wireless Power Receiver
The STWLC88 from STMicroelectronics is an Inductive 50 W Wireless Power Receiver. It is designed to support the latest Qi specifications for the inductive communication protocol with Extended Power Profile (EPP) and the proprietary STSuperCharge (STSC) protocol for fast charging. The receiver is capable of operating in transmitter (Tx) mode to share power for charging other devices with the output power up to 12 W depending on the coil used. Read more.
Energous Introduces 1 W Active Energy Harvesting Developer Kit to Enable Over-the-Air Wireless Charging
Energous Corporation, the developer of WattUp, a revolutionary RF-based wireless charging technology that supports charging of electronic devices at-a-distance, announced the availability of its 1W Active Energy Harvesting Developer Kit. The 1W Developer Kit can charge multiple devices simultaneously, enabling at-a-distance wireless charging for the growing Internet of Things ecosystem. This technology represents the lowest cost, smallest size solution for any known active energy harvesting ecosystem. Read more.
NuCurrent Outperforms NFC Wireless Charging Specs in Space Constrained Devices
NuCurrent announced that it has surpassed the NFC WLC specification for wireless power and data transfer in a product. The achievement - which delivers 2.4x the power and 4x the data transfer rates of the NFC WLC Wireless Charging specification - is the result of a partnership between NuCurrent and WHOOP. Read more.
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