Page 3 - PEN eBook October 2022

VIEWPOINT
KEEP IT SIMPLE!

SENSE WITH MEMS

Boosting Power

Density in Power

Applications

Three-phase brushless DC and permanent-magnet synchronous motors are becoming the preferred choice
for designing modern battery-powered motor products. The main applications include cordless power tools

and gardening items, drones, e-bikes, and autonomously guided vehicles. These three-phase motors are
difficult to control. Both motors are commutated sequentially by power switches (MOSFETs) as opposed
to mechanical brushes in contact with the rotor. The system’s capacity to measure the rotor’s location is
a crucial component of this control strategy. Moreover, in these sorts of applications, the intention of the
end user is to have devices that are smaller, lighter, and have a longer battery life. In this issue, Maurizio
Acosta, product marketing manager at Infineon Technologies, will analyze the design solutions, highlighting
a fully programmable motor control solution that integrates MCU and gate-driver IC. Other topics that
© eiSmart we will discuss are wireless power transfer, automotive lights, the increasing importance of EV battery

testing, and the need for a more holistic, platform-based approach and gallium nitride technology. GaN is a
next-generation semiconductor, and replacing legacy silicon chips with GaN ICs in power-conversion systems is
a huge chance to attain net-zero objectives. At the system level, the high-performance advantages of GaN and
WE meet @ the integration of power, control, protection, and sensing into a single device enable greater efficiency, which

electronica not only results in less energy consumption but also lower operating temperatures, reducing or eliminating the
need for heatsinks and larger cases. Moreover, the benefits of GaN-based inverters are becoming increasingly
Hall A5, Booth 406 evident in motor drive applications. Currently, lithium-ion battery-powered cordless vacuum cleaners with
practical run periods and suction strength are common, but there is constant market push to perform

better. While battery technology advances slowly due to the physics of chemical reactions, there is potential
to increase the performance of the motor utilizing existing technology. In this issue, we will take a look at
MEMS Sensor Portfolio & Customer Service • Support by engineers within 24 h
Sensors are an integral part of every future application. Measuring tempera- • Excellent measuring accuracy several design aspects. We will also take a look at how to design and build a low-noise, high-performance,
ture, humidity, pressure or acceleration has never been easier. Take advantage • Factory calibrated & ready to use low-cost brushed DC motor programmable speed regulator and analyze military-grade DC/DC switching
of services like our Software Development Kit and Evaluation Boards available • On-chip interrupt functions
off-the-shelf. Detailed documentations as well as the direct support by trained • Implemented algorithms power supplies. Switching DC/DC converters in military applications must meet stringent standards for limits
engineers will leave no questions open. With excellent measuring accuracy and • SPI & I²C digital interfaces on conducted input noise emissions, and they typically require input filter networks for compliance.
long-term stability, the sensors provide high precision and accurate output
values with intelligent on-chip interrupt functions.
Combine sensors and wireless connectivity – start your IoT application today:
www.we-online.com/sensors Yours Sincerely,
Maurizio Di Paolo Emilio
Editor-in-Chief, Power Electronics News

3 Axis Acceleration Temperature Sensor IC Absolute Pressure Differential Pressure Humidity #SensewithMEMS
WSEN-ITDS WSEN-TIDS WSEN-PADS WSEN-PDUS WSEN-HIDS

OCTOBER 2022 | www.powerelectronicsnews.com 3 3