22 March 2017
Power Electronics / Power Management
Texas Instruments introduced a digital-to-analog converter (DAC) that combines industry-leading precision performance with simpler power supply design. The 16-bit DAC8775 operates from a single, wide 12 to 36 V power rail, leveraging an integrated buck/boost converter to generate all of the required internal power supplies.
The four-channel device addresses the trend in factory automation and process control equipment toward input/output (I/O) modules that must squeeze more channels into a smaller space. Engineers designing these systems face the challenge of managing power dissipation in a small form factor. By combining a 4-20 mA current and voltage driver with a precision reference and a buck/boost converter, the DAC8775 enables a small total system footprint.
On-chip diagnostic features include smart alarms that monitor open load, short circuit, over-temperature, cyclic redundancy check (CRC), watchdog timer and compliance voltage. Designers can choose preset actions that help detect faults early to facilitate reliable system operation. The device has an innovative auto-learn feature that calculates the load impedance on the 4-20 mA loop and clamps the power supply. This enables faster settling time, balancing efficiency with quicker system response.
A total unadjusted error of 0,1% full-scale range (FSR) over an extended industrial temperature range of -40°C to 125°C enables designers to rate their output modules for higher temperature ranges. The DAC8775's high DC performance reduces the need for system calibration, saving manufacturing costs compared to a discrete solution. The DAC8775 dynamically adjusts the generated supply based on the current load on the 4-20 mA loop. This creates an efficient system with well-controlled thermal performance, allowing more channels in a smaller space.
The role of bidirectional charging in the evolving energy landscape Avnet Silica
Power Electronics / Power Management
As reliance on renewable sources like wind and solar continues to grow, the need for efficient energy flow and storage solutions has become more critical than ever.
Read more...MCU for noisy environments EBV Electrolink
DSP, Micros & Memory
The MCX?E24X is a high-performance microcontroller family from NXP, engineered for industrial, automotive-like, and energy-focused environments.
Read more...How to calculate a buck converter’s inductance
Power Electronics / Power Management
In the buck circuit, the inductor design is a key element that is closely related to system efficiency, the output voltage ripple, and loop stability.
Read more...High-current EMI filters Accutronics
Power Electronics / Power Management
TDK has introduced 20 and 40 A, 80 V DC board-mount EMI filters, reducing differential mode conducted emissions for switching power supplies with high input current requirements.
Read more...Isolated SMD DC-DC converters iCorp Technologies
Power Electronics / Power Management
MinMax has launched a series of isolated SMD DC-DC converters, the MSU01 series delivering 1 W, while the MSU02 series offers 2 W output.
Read more...Next-gen power meter Electrocomp Express
Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.
Read more...Advanced PMIC for high-performance AI applications ASIC Design Services
Power Electronics / Power Management
Microchip Technology has announced the MCP16701, a Power Management Integrated Circuit (PMIC) designed to meet the needs of high-performance MPU and FPGA designers.
Read more...New SiC power MOSFET Future Electronics
Power Electronics / Power Management
STMicroelectronics’ SCT012H90G3AG is a robust, automotive-grade SiC MOSFET, engineered for demanding power electronics, featuring a 900?V drain-source voltage and exceptionally low on-resistance of 12?mO at 60?A.
Read more...Chip provides concurrent dual connectivity EBV Electrolink
Telecoms, Datacoms, Wireless, IoT
The IW693 from NXP is a 2x2 dual-band, highly integrated device that provides concurrent dual Wi-Fi 6E + Wi-Fi 6 and Bluetooth connectivity, supporting four different modes.
Read more...Fundamental motor control design challenges and solutions
Power Electronics / Power Management
Mouser Electronics has announced a new eBook in collaboration with Qorvo, featuring industry experts providing key insights into methods, power efficiency and integration solutions available for motor control applications.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version