ROHM has announced the development of an automotive wireless charging solution with integrated NFC communication. This solution combines ROHM’s automotive-grade (AEC-Q100 qualified) wireless power transmission control IC (BD57121MUF-M) with STMicroelectronics’ NFC Reader IC (ST25R3914) and 8-bit microcontroller (STM8A series). In addition to being compliant to WPC’s Qi standard supporting EPP (Extend Power Profile) that enables […]
Wireless power chip measures just 1.7mm x 1.4mm and less than 0.5mm thin
Energous Corporation announced the availability of its DA2223 receiver chip, which is the latest addition to its family of integrated circuits (ICs). At just 1.7mm x 1.4mm and less than 0.5mm thin, the DA2223 4-port RF-to-DC wireless power chip is the smallest RF rectifier IC in the Energous technology portfolio. Depending on the device power level, […]
Integrated power bank delivers >50 Watts for fast, multi-channel wireless charging
NXP has announced a new highly integrated power bank solution, supporting the industry’s latest mobile device charging methods with support for both 15 Watt wireless power and Qualcomm Quick Charge 4+ power output. The NXP power bank is designed to deliver >50 Watts of power and enables fast and simultaneous multi-channel charging across power levels […]
Development kit helps build power-over-distance wireless power transmitters
Powercast Corporation announced that it has begun shipping its three-watt, Bluetooth-approved PowerSpot transmitter which is the industry’s first that works in the far field (up to 80 feet) to charge multiple consumer devices over the air – no charging mats needed. Powercast began production of its PowerSpot transmitter after receiving FCC (ID: YESTX91503) and ISED (Canada […]
Wireless battery-charger dev kit for small IoT devices
The STMicroelectronics plug-and-play wireless battery-charger development kit (STEVAL-ISB045V1) lets users quickly build ultra-compact chargers up to 2.5W with a space-saving 20mm-diameter coil, for charging small IoT devices and wearables such as smart watches, sports gear, or healthcare equipment. Built around the STWBC-WA wireless charging-transmitter controller, the kit comprises a charging base unit containing a transmitter […]
GaN-based wireless power amps provide 100 and 300 W
GaN Systems unveiled two wireless power amplifiers that will revolutionize the wireless charging market for high-power consumer, industrial, and transport applications. These new solutions include the 100 W power amplifier with ranges from 70 W to 100 W and the 300 W power amplifier with ranges from 150 W to 1 kW. GaN Systems is displaying […]
Class 4 wireless power kit transmits up to 33 W
Efficient Power Conversion Corporation (EPC) today announces the availability of a complete class 4 wireless power kit, the EPC9129. The system can transmit up to 33 W while operating at 6.78 MHz (the lowest ISM band). The kit comes complete with two receivers, each with a regulated output − one capable of 5 W capable […]
Wireless charging in vehicles — making the cables disappear
By Laird Technologies, Inc. According to a Mobility Report from Ericsson, there will be 6.1 billion smartphone users by 2020, or about 75% of the world’s population at that time. Today, it is estimated that there are 2.6 billion smartphone subscriptions globally. As a result, the mobile communications industry is moving faster than ever to […]
Wireless charging, Part 2: Implementation
Part 1 of this FAQ looked at the overall context of wireless charging of personal devices. This part looks in more detail at the approaches to wireless charging and the implementation specifics. Q: What approaches are available for wireless charging? A: There are three basic topologies: single-coil inductive, multi-coil inductive, and resonant. Q: What are […]
Wireless charging, Part 1: Context
Wireless charging of devices is a hot and growing area. This FAQ explores the rationale and options for implementing this form of energy transfer, storage, and charging. Q: What is wireless charging? A: It consists of two functions which are closely linked. The first is the transmission of electricals power wirelessly from a transmitting source […]
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