Avago has announced an optically isolated sigma-delta modulator that uses an external clock to provide direct measurement of motor phase currents in power inverters.
Based on an advanced low-power CMOS process, the ACPL-796J uses an external clock that allows synchronised data conversion between the current sensor and controller to help motor control designers eliminate complex design processes in data and clock reading. Moreover, the device is designed with digital inputs and outputs that are compatible with systems powered by 5 V or 3 V supplies and works over a wide industrial temperature range.
Combined with enhanced optical coupling technology, the modulator delivers high noise margins and excellent immunity against isolation-mode transients. With 0,5 mm minimum distance through insulation, the ACPL-796J provides reliable double protection and high working insulation voltage, which is suitable for fail-safe designs. Offered in a 16-lead small outline package, the isolated A-D converter delivers the reliability, small size, isolation and over-temperature performance that motor drive designers need to accurately measure current at a lower price than traditional current transducers.
The device has 16-bit resolution (12-bit effective) and an external clock input range of 5–20 MHz. It features a 1-bit, second order sigma-delta modulator and a minimum signal-to-noise ratio of 74 dB. Maximum offset drift is 3,5 μV/°C, maximum gain error is ±1% and common-mode transient immunity is 25 kV/μs. The IC features a linear range of ±200 mV with a single 5 V supply (±320 mV full scale) and operates from 3 to 5,5 V supply range.
General-purpose evaluation board Altron Arrow
DSP, Micros & Memory
Based on the 32-bit Arm Cortex-M7 S32K3 MCU in a 172 HDQFP package, the S32K3X4EVB-T172 offers dual cores configured in lockstep mode, ASIL D safety hardware, and HSE security engine.
Read more...Zero drift current shunt monitors Altron Arrow
Power Electronics / Power Management
The NCS21671 and NCV21671 from onsemi are a series of voltage output current sense amplifiers offered in gains of 25, 50, 100, and 200 V/V.
Read more...Wi-Fi 6/BLE module enables rapid development Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Telit Cinterion has announced the WE310K6, a fully integrated, low-power module featuring dual-band, dual-stream Wi-Fi 6, and dual-mode Bluetooth/BLE.
Read more...Analysis of switch-mode power supply: inductor violations Altron Arrow
Editor's Choice Power Electronics / Power Management
Common switch-mode power supply (SMPS) design errors are discussed, and their appropriate rectification is specified, with details on complications that arise with the power stage design of DC-DC switching regulators.
Read more...Microsoft Windows IoT on ARM Altron Arrow
Computer/Embedded Technology
This expansion means that the Windows IoT ecosystem can now harness the power of ARM processors, known for their energy efficiency and versatility.
Read more...Microchip introduces ECC608 TrustMANAGER Altron Arrow
Circuit & System Protection
To increase security on IoT products and facilitate easier setup and management, Microchip Technology has added the ECC608 TrustMANAGER with Kudelski IoT keySTREAM, Software as a Service (SaaS) to its Trust Platform portfolio of devices, services and tools.
Read more...SolidRun unveils new SoM Altron Arrow
AI & ML
SolidRun and Hailo has unveiled a game-changer for engineers and AI product developers with the launch of their market-ready SoM, which packs the cutting-edge capabilities of the Hailo-15H SoC.
Read more...An evolutionary step in customisable logic Altron Arrow
DSP, Micros & Memory
Microchip Technology is offering a tailored hardware solution with the launch of its PIC16F13145 family of microcontrollers, which are outfitted with a new Configurable Logic Block module.