WattUp 1W active energy harvesting developer kit enables at-a-distance wireless charging

WattUp 1W Active Energy Harvesting Transmitter

Two years ago, we noted Energous’ WattUp hearables developer kit that would charge earbuds with the company’s WattUp near-field wireless charging technology. The company has now introduced the WattUP 1W active energy harvesting developer kit capable of charging multiple IoT devices with at-a-distance wireless charging. The kit is said to be “active” because there’s a 6-inch transmitter, let’s call it a power gateway, and several IoT devices that harvest energy from it. Traditional passive solutions will harvest ambient energy from the surrounding environment, and may not deliver enough power, and do so unpredictably. The developer kit comes with the transmitter, plus one or more receiver units, and relies on the following main chips: Transmitter Dialog Semiconductor DA14682 SmartBond Bluetooth 5.0 Cortex-M0 SoC Dialog Semiconductor DA4100 Wireless Power Transmitter SoC Dialog Semiconductor DA3210 1W Power Amplifier A discrete rectifier and a DA2210 WPT rectifier Receiver(s) Dialog Semiconductor DA14531 Cortex-M0+ BLE 5.1 […]

NuCurrent showcases NFC charging at 3W, data rates up to 848 kb/s

NuevaNFC 3W power

The NFC Forum approved the Global Wireless Charging (WLC) specification last year with the new standard making it possible to wirelessly charge small, battery-powered consumer and IoT devices with a smartphone or other NFC charging device at a power transfer rate of up to one watt. The NFC WLC currently specifies power levels ranging from 100mW – 1W transmitted and data rates up to 106 kb/s, but NuCurrent claims to have gone beyond WLC specs, delivering over 3x more wireless power and over 8x faster data speeds. This was achieved with the company’s NuEva Development Platform for Near-Field Communication (NFC) Wireless Charging technology that provided up to 3W of power received (as opposed to just transmitted in the WLC specification) and data rates of up to 848 kb/s. NuCurrent expects the higher NFC charging power and data rates to enable new applications for small, space-constrained devices including wrist-wearables, smartwatches, styluses, […]

PinePower 120W desktop power supply features display, USB PD, QC 3.0 and wireless charging

Desktop Power Supply Qi Wireless Charging

Pine64’s January update includes the launch of PinePhone with Mobian operating system, some limited details about the upcoming Quartz64 RK3566 SBC that will ship with 4 to 8GB RAM, and other news about all their products. There’s not enough details yet to write a post about Quartz64, but another product caught my eyes: PinePower. Yes, Pine64 is now offering power supply, and last month they presented PinePower 65W GaN power adapter that looks similar to MINIX NEO P1 power supply, albeit slightly larger. But I find the desktop version of the power supply even more interesting with an integrated display that shows voltage and current for each port, and also adds Qi wireless charging. PinePower “Desktop” version specifications: Display – Shows individual port voltage and current status USB charging ports 1x USB Type-C PD port up to 65W output with support for 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A 1x QC 3.0 […]

Cmsemicon ANT32RV56xx is a RISC-V microcontroller for wireless charging

Cmsemicon RISC-V wireless charging

We’ve seen RISC-V architecture used in general-purpose microcontrollers, AIoT processors, as well as WiFi and Bluetooth IoT SoC’s such as ESP32-C3 and BL602. Allwinner is also prepping a RISC-V application processor, and we’ve covered plenty of other developments in our RISC-V 2020 highlights post. But we’ve now been made aware of another application-specific RISC-V microcontroller from a Chinese fabless vendor I had never heard of. Meet Cmsemicon ANT32RV56xx RISC-V microcontroller for wireless charging applications. Cmsemicon ANT32RV56xx “tentative” key features and specifications: MCU Core –  RISC-V RV32EC core @ 48MHz 32-bit hardware divider (HWDIV) Memory – Up to 32KB ILM-SRAM, up to 8KB DLM-SRAM Storage – 64KB program FLASH (APROM+BOOT), 1KB FLASH data area Peripherals Up to 46 I/Os 6x Enhanced PWM (EPWM) 1x I2C, 1x SPI/SSP, 2x UART Up to 20x 12-bit ADC up to 100Ksps Up to 20x 12-bit ADC up to 1.2 Msps Capture/compare/pulse width modulation for up […]

GuRu Launches Desk-Range Wireless Power Transfer Evaluation Kit

Guru Wireless Power Evaluation Kit

Several companies are developing wireless power at-a-distance solutions with various ranges, from desk power/charging to factory sensor power, including Energous and TransferFi. CNX Software has been contacted by another company working in the field with Guru Inc launching the GuRu mini evaluation kit capable of wireless power transmitting several watts within a desk using a 24 GHz chip. There are very few details about the internals of the transmitter and receiver, but the company told CNX Software GuRu developed its own 24GHz chip built in a standard CMOS process. The chip is said to use “Smart RF Lensing power transfer, enabled via highly focused, intelligently-controlled millimeter waves” in order to increase both power transfer and range by up to 10 times, as well as deliver smaller and cheaper devices. The (G3100-005-EVK) wireless power transfer evaluation kit  is comprised of the following components/accessories: A generator unit (GU) suitable for desktop environment […]

NFC Wireless Charging Coming Soon to IoT Devices and Wearables

NFC Wireless Charging

NFC is better known for contactless payment and transferring contacts, but one interesting feature is the ability to provide power as we’ve recently seen with batteryless NFC powered E-paper displays. The current NFC implementations can only provide a limited amount of power, but the NFC Forum has recently approved the Wireless Charging Specification that enables wireless charging of small, battery-powered consumer and IoT devices with a smartphone or other NFC charging device at a power transfer rate of up to one watt. One watt is not as much as other similar technologies, but NFC wireless charging (NFC WLC) should be quite more cost-effective since device-specific wireless chargers are not needed. Just take a phone or charger with NFC WLC and all compliant devices could be charged that way. The specification is free to download for NFC Forum members but must be purchased by others. There’s still short abstract available: Wireless […]

TransferFi Wireless Power Network Lights Up Sensors up to 55 Meters Away


Wireless charging has been around for a while, and it usually placing a phone or other device on a charging pad. But back in 2018, Energous started to promote its near-field, mid-field, and far-field wireless charging solutions, with far-field meaning within a room. But so far, they only have released near-field devkits and products. Singapore based TransferFi Pte has come up with its own wireless charging solution. TranferFi wireless power network (TFi WPN) aims to power sensors up to 55 meters away and specifically targets building and factory automation in order to help companies save on installation and cabling costs. The solution works with a gateway powering up and receiving data from sensors wirelessly with a range of up to 55 meters.  The TFi Gateway Max Turin-1 covers up to 32 TFi Sense devices via multichannel beamforming supporting up to 16 channels and can be connected to Modbus, BACnet & […]

ONiO.zero offers a RISC-V Microcontroller that runs without battery


Energy harvesting has been an exciting area people have tried to venture into mostly because of the possible applications that can arise from it. Newly invented energy-harvesting technologies accompanying low-power computing systems have pushed the boundaries of where embedded systems can be deployed. The demand for an increase in connected applications which require an underlying embedded system, and as we know, all electronic devices require a power source of some sort. This power source, batteries in most cases, comes with an accompanying buck regulator of some sort that will tend to increase the BOM. Aside from the BOM rise from the usage of batteries, there is also the shelf life and environmental aspects. The Norwegian specialist ONiO has introduced the ONiO.zero to address those issues. Having no battery means fewer components and a smaller design, which can easily be integrated into a wide range of solutions – be it fabrics, […]