Power supply meets automotive-transient-voltage specs
02.27.2017 · Circuits
Figure shows a power supply that delivers 5 V from a 12 V battery. With only a few components, the supply copes with all the automotive transients that ISO 7637-1 lists without the need for a bulky transient-voltage suppressor...
Allegro MicroSystems, LLC Introduces New Programmable Linear Hall-Effect Sensor IC
02.27.2017 · News
Allegro MicroSystems, LLC introduces a new programmable linear Hall-effect sensor IC designed for applications that require high accuracy and high resolution without compromising bandwidth. Allegro’s A1377 employs segmented, linearly interpolated temperature compensation technology...
How to measure capacity versus bias voltage on MLCCs
02.26.2017 · Circuits
High-capacity, multilayer ceramic capacitors have a property often not well understood by electronic designers: the capacitance of these devices varies with applied DC voltage. This phenomenon is present in all high-dielectric constant, or Class II capacitors. However, the amount of variation can differ considerably among different MLCC types...
Crystal orientation a breakthrough for solar tech
02.26.2017 · Articles
Researchers from Los Alamos National Laboratory, Northwestern University and Rice University have tweaked their crystal production method and developed a type of two-dimensional layered perovskite with outstanding stability and more than triple the material’s previous power conversion efficiency, in a step that could bring perovskite crystals closer to use in the burgeoning solar power industry...
Melexis Announces Pioneering Use of MEMS in Mid-Range Pressure Sensing Applications
02.26.2017 · News
Melexis continues to bring highly differentiated products to market through superior innovation, with the introduction of its MLX90819 sensor IC – which is targeted at measuring mid-pressure (10-50 bar) levels. Applying its proprietary micro-electro-mechanical system technology to an area that had not been previously adequately served by a fully integrated sensor solution means that major system design benefits can now be derived...
Programmable Gain Element Using the AD5426/AD5432/AD5443 Current Output DACs
02.23.2017 · Circuits
This circuit provides a programmable gain function using a multiplying DAC and an operational amplifier. The maximum gain value and the temperature coefficient are set by the external resistors and the resolution of the programmable gain is set by the resolution of the DAC...
2 mm-Thick 100 W Wireless Charging for Notebooks and Tablets
02.23.2017 · News
On the final day of the 2017 Consumer Electronics Show, NXP Semiconductors N.V. introduced the first high-power wireless charging solution for notebooks and 2-in-1 tablets, with up to 100 W of delivered power, covering the entire range of power supply requirements for this segment. At <2 mm in thickness and low component count, the solution is capable of fitting into the tightest industrial design constraints. Concerns and costs associated with cooling are eliminated with 94 percent power transfer efficiency...
Qualcomm Technologies Announces Comprehensive RF Front-End Platform for the Next Generation of Advanced Global Mobile Devices
02.23.2017 · News
Qualcomm Incorporated announced that its subsidiary, Qualcomm Technologies, is introducing a suite of comprehensive RF front-end (RFFE) solutions, making it the first mobile technology provider to develop and commercialize a comprehensive platform spanning from the digital modem to the antenna port...
World's highest output RF power transistor replaces vacuum tubes in industrial systems
02.22.2017 · Articles
The latest advances in LDMOS technology have allowed RF power transistors to be employed in systems that were formerly the exclusive domain of vacuum tubes, while also expanding their use in new applications. The new NXP MRF1K50H RF power transistor further extends the capabilities of LDMOS, as it delivers 1500 W at 50 V between 1.8 and 500 MHz in either pulsed or CW operation, making it the highest power transistor available in any technology and any frequency...
AKM releases a 3-axis Magnetic Sensor for IoT Designs; The AK09970 captures Magnetic Fields with Vector Components
02.22.2017 · News
There is increasing demand for a sensing function to monitor an object’s status in remote locations as IoT products are expected to grow in the market. Asahi Kasei Microdevices Corporation, (AKM), has developed the AK09970, a 3-axis magnetic sensor that is able to detect magnetic signals in X, Y, and, Z directions. The AK09970 supports wide measurement range with high resolution in 3-axis detection and captures magnetic fields in 3-dimensions...