Wireless charging startup Energous has announced a collaboration with Dialog Semiconductor to help develop a market for the company's over-the-air wireless power technology, called WattUp. Unlike current wireless charging techniques that require a charging device to be placed on or near a charging surface, WattUp is claimed to deliver usable power at a distance -- up to 15 feet -- using the same RF bands as WiFi.
The Energous WattUp over-the-air wireless charging technology uses Bluetooth to locate the device in need of charging and then focuses RF to charge the device automatically.
As a result of the collaboration with Dialog, Energous plans to develop reference designs -- featuring Dialog's SmartBond Bluetooth Smart IC -- to help promote development of the technology. Currently the company is focusing on licensing its technology to the wearable and mobile accessory markets. For more details on the technology, see "Wireless Charging Startup Taps RF."
In product news this week, Freescale Semiconductor and Melexis have jointly developed a wireless charging reference design for in-vehicle consumer electronic devices. The WCT-5WTXAUTO meets EMC and EMI protection guidelines required for automotive-related electronics and features Melexis' MLX90132 NFC transceiver chip and Freescale's MWCT1003AVLH MCU.
Linear Technology announced the LTC3807 synchronous step-down DC/DC controller, with a 24-V output and 50-µA no-load quiescent current. The company also introduced the LT8310, a primary-side synchronous forward controller that operates over an input range of 6 to 100 V and features a duty mode control that generates a stable, regulated, isolated output using a single power transformer.
A series of high-voltage LDOs from Texas Instruments is designed for automotive and industrial applications. The 17 new AEC-Q100-qualified LDOs feature a quiescent current as low as 10 µA and the ability to support an input voltage up to 60 V.
Renesas Electronics America has expanded its portfolio of Simple Power Supply ICs. Comprising 12 new devices, the RAA23012X, RAA23013X, RAA23022X, and RAA23023X series 16-V-input-capable synchronous buck regulators deliver up to 3 A continuous to loads at voltages as low as 0.8 V.
Diodes Incorporated has introduced an LED lamp driver designed to optimize the design of sub-12-W triac dimmer-compatible LED lamps. The AP1695 features a dimming range of 1% to 100% and a 30% reduction in BOM cost.
MINMAX Power has announced a series of 24 to 60-W Class II AC/DC modules with industrial and medical safety approvals. The AJM-24, APM-40, and AYM-60 Series are compliant with and/or approved to Energy Star and European ErP Directive 2009/125/IEC; UL508 and worldwide EN60950-1; UL/IEC/EN 60601-1 3rd Edition; and Class B conducted and radiated EMI to FCC Part 15, EN55011, and EN55022 standards.
Vishay Intertechnology expanded its microBUCK family of synchronous buck regulators with a new 3-A device. The SiP12116 features a fixed 650-kHz switching frequency and an input voltage range of 4.5 to 15 V.
Finally, AVX has extended its high-temperature SMX Series stacked SMPS MLCCs. The new devices include 25-V ratings in case sizes 3-5 and 500-V ratings in every case size (1-6).