Alpha and Omega Semiconductor Limited announced the release of AOZ32034AQV, a new product in the family of coil drivers for wireless charging transmitter circuits of up to 50W. Packaged in a thermally enhanced QFN 4 x 4 package, the device is designed for wireless charging applications in charging stations, cordless power tools, vacuum cleaners, drones, and other […]
Wireless
Wireless power coil carries integrated NFC antenna
With WE-WPCC WPT/NFC, a particularly innovative solution from Würth Elektronik stands out from the extensive portfolio of coils for wireless power transmission: Wireless Power Coil with integrated NFC antenna. This range has now been expanded to five models, with receiver coils for transmission powers of up to 30, 40, and 50 watts, and transmitters for […]
Modules help add wireless charging to small devices
Rohm Semiconductor announced they have developed compact wireless charger modules with an integrated antenna board: the BP3621 (transmitter) and the BP3622 (receiver). These new modules allow designers to add wireless power supply functionality to smaller devices such as smart tags/cards or PC peripherals. Wireless power supplies are increasingly being adopted in smartphones, smart watches, and other compact devices. […]
Wireless power supply chipset provides up to 1 W
ROHM Group company LAPIS Technology announced they have developed a chipset capable of providing up to 1W of wireless power for compact, streamlined wearable devices and for industrial smart, miniaturized, and sealing solutions. The ML7661 (transmitter) and ML7660 (receiver) eliminate the need for an external MCU by incorporating a control circuit required for transmission/reception, resulting in the industry’s smallest […]
Don’t rush to choose rechargeable batteries…at least, not yet
Using energy harvesting and a rechargeable battery to power a remote wireless IoT node seems like an obvious and straightforward solution, but there are some unique aspects to consider. Don’t get me wrong: I really like rechargeable batteries; in fact, I like them a lot. Whether based on lead-acid, nickel-cadmium, lithium-ion, or other chemistry, our […]
LDO voltage regulator optimized for noise-sensitive automotive apps
Diodes Incorporated has introduced the AP7347DQ low dropout (LDO) voltage regulator, which is highly optimized for demanding noise-sensitive power-related automotive applications. This automotive-compliant high output accuracy LDO is AEC-Q100 Grade 1 qualified, manufactured in IATF 16949 certified facilities, and fully supports automotive production part approval processes (PPAPs). These qualities make it well-suited to design into […]
Battery management IC improves charge and fuel gauge accuracy
Analog Devices, Inc. announced the MAX17330 battery management integrated circuit (IC) with integrated fuel gauge and advanced battery protection for one-cell lithium-ion/polymer batteries that delivers a longer battery runtime for consumer applications than similar products. The new IC expands ADI’s battery management portfolio, which already delivers accuracy for the automotive and industrial markets that are […]
Buck/boost converter boasts super-low quiescent current, targets battery powered apps
Texas Instruments introduced a new bidirectional buck/boost converter with an ultra-low quiescent current (IQ) of 60 nA – one-third the IQ of competing boost converters. The TPS61094 buck/boost converter integrates a buck mode for supercapacitor charging while providing ultra-low IQ, enabling engineers to extend battery life by as much as 20% when compared to commonly used hybrid-layer […]
Automotive wireless charging reference design is Qi 1.3-certified
NXP Semiconductors announced a new automotive wireless charging reference design, the first to be certified by the Wireless Power Consortium (WPC), the global standard development body for wireless power, for its new Qi 1.3 standard. The reference design consists of a Qi-certified board with an NXP wireless charging MWCT family MCUs, as well as an […]
Coil drivers address wireless charging apps
The AOZ32033AQI coil drivers from Alpha and Omega Semiconductor offers 30V, 11mOhm in a QFN3x3 package. AOZ32033AQI is an integrated half-bridge gate driver capable of driving high-side and low-side N-channel MOSFETs. It features SRC (Slew Rate Control) to adjust sink/source current and provide the ideal trade-off between efficiency and EMI optimization in the design of […]
