DSCs with free motor FOC algorithm
14 May 2008
DSP, Micros & Memory
Microchip has released 10 new 28- and 44-pin 16-bit digital signal controllers (DSCs) for motor control designs requiring increased memory, performance or enhanced peripherals, while obtaining cost and size savings by using lower pin-count devices. Also released is a new motor control development platform based on the popular Explorer 16 development board.
Additionally, Microchip announced five motor control software solutions for power factor correction (PFC), sensorless field oriented control (FOC) of a PMSM motor, sensorless FOC of an ACIM motor, sensorless control of a BLDC motor using back-EMF filtering and sensorless BLDC control with back-EMF filtering using a majority function.
The newly announced devices come in packages as small as 6 x 6 mm, and offer up to 128 KBytes of Flash memory for large proprietary algorithms such as observer motor control models, integration of motor control algorithms with system-level control, communication stacks such as CAN and graphic libraries for displays.
Two of the new devices feature 16-bit digital-to-analog Converters (DACs) which can be used for motor noise reduction strategies or audio messaging. A user-selectable 10- or 12-bit analog-to-digital converter (ADC) is also available on-chip. In 10-bit mode, the ADC features up to four sample-and-hold circuits that can be triggered simultaneously - especially useful for synchronised sampling strategies to improve control loop performance.
All of these new DSCs have a flexible three-phase PWM controller, plus two additional PWM outputs on a separate time base which are ideal for PFC since that requires a control loop that is over 30 times faster than a typical motor control loop. PFC is increasingly required for mains-powered motors and Microchip has issued a software solution published as application note AN1106 that can be downloaded from the company's website. The new devices also feature two quadrature encoder interfaces for position-sensing applications.
For demonstration and development, the new PICtail Plus Motor Control daughter card provides an interface between the general-purpose Explorer16 Development board and existing motor drive power modules.
Further reading:
MCU for low-power, IoT applications
NuVision Electronics
DSP, Micros & Memory
Silicon Labs recently announced the PG26, a general-purpose microcontroller with a dedicated matrix vector processor to enhance AI/ML hardware accelerator speeds.
Read more...
EEPROMs for industrial and military markets
Vepac Electronics
DSP, Micros & Memory
Designed to ensure the data retention and the secure and safe boot of digital systems, the memory product line includes small and medium density EEPROMs from 16 kb to 1 Mb.
Read more...
PLCnext – Open, IIoT-ready industrial platform
IOT Electronics
DSP, Micros & Memory
PLCnext can be used alongside an existing PLC system, collecting control system data via EtherNet/IP, PROFINET, or MODBUS, and can push this information to a cloud instance.
Read more...
ICs vs modules: Understanding the technical trade-offs for IoT applications
NuVision Electronics
Editor's Choice DSP, Micros & Memory
As the IoT continues to transform industries, design decisions around wireless connectivity components become increasingly complex with engineers often facing the dilemma of choosing between ICs and wireless modules for their IoT applications.
Read more...
Hardware quantum resistance to embedded controllers
Avnet Silica
DSP, Micros & Memory
To help system architects meet evolving security demands, Microchip Technology has developed its MEC175xB embedded controllers with embedded immutable post-quantum cryptography support.
Read more...
High-performance processor for edge-AI
Altron Arrow
DSP, Micros & Memory
The STM32MP23 microprocessor from STMicroelectronics is the latest addition to the STM32MP2 series, designed to meet the demands of industrial, IoT, and edge AI applications.
Read more...
PolarFire SoC FPGAs achieve AEC-Q100 qualification
ASIC Design Services
DSP, Micros & Memory
Microchip Technology’s PolarFire SoC FPGAs have earned the Automotive Electronics Council AEC-Q100 qualification.
Read more...
Integrated STM32WBA6 wireless microcontrollers
Altron Arrow
DSP, Micros & Memory
Cost-efficient and highly integrated embedded controllers for emerging 2,4 GHz wireless applications in smart home, health, factory, and agriculture.
Read more...
Ultra-low-power MCU with FPU Arm Cortex-M33
Altron Arrow
DSP, Micros & Memory
STMicroelectronics has expanded its STM32 ultra-low-power family with the launch of the STM32U3 for cost-sensitive applications in industrial, medical, and consumer electronics devices.
Read more...
Low-jitter oscillators
DSP, Micros & Memory
The JOH21, JOE21 and JOD21 low-jitter oscillators with differential output are designed for applications that require accurate timing and precise synchronisation.
Read more...
printer friendly version