Announcements of articles and news
Crystal orientation a breakthrough for solar tech
26.02.2017 · 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
26.02.2017 · 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
23.02.2017 · 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
23.02.2017 · 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
23.02.2017 · 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
22.02.2017 · 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
22.02.2017 · 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...
560V No-Opto Flyback Regulator Delivers Up to 15 Watts in High Voltage Spacing TSSOP Package
22.02.2017 · News
Linear Technology Corporation announces the LT8315, a high voltage monolithic flyback regulator that simplifies the design of an isolated DC/DC converter. By sampling the reflected isolated output voltage across the third winding on the power transformer, the part requires no opto-isolator or LT1431 for regulation...
Optical sensor needs no tweaking
21.02.2017 · Circuits
The transfer gain of optical sensors spans a 16-to-1 ratio because of variations in the LED, phototransistor, ambient temperature, and optical path. The wide transfer-gain variation complicates output-resistor selection in dc-coupled circuits. You must size the output resistor to prevent high transfer gains from causing output-stage saturation, but low transfer gains yield low output-voltage swings with low-value resistors...
When to use an amplifier with rail-to-rail inputs - and what to watch out for
21.02.2017 · Articles
Early in my graduate school education, I was working on a project that needed a unity-gain operational-amplifier buffer for a monitoring circuit in our thin film deposition system. As soon as the new module was plugged in, I discovered that all of the signals close to the positive supply were clipped...