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...
560V No-Opto Flyback Regulator Delivers Up to 15 Watts in High Voltage Spacing TSSOP Package
02.22.2017 · 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
02.21.2017 · 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
02.21.2017 · 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...
Cree Announces the Next Generation of Extreme High Power LEDs
02.21.2017 · News
Cree, Inc. introduces the XLamp® XHP50.2 LED, which delivers up to seven percent more lumens and 10 percent higher lumens-per-watt than the first generation XHP50 LED in the same 5.0 mm × 5.0 mm package...
Smart Power Supply for Microcontroller Projects
A good, reliable and easy to use dc power supply is probably the most important thing for every electronics hobbyists. Since a proper electronically stabilized power supply is crucial for almost all microcontroller-related diy projects, here we are presenting a simple diy project of an easy to build and very affordable power supply for microcontrollers...