Page 27 - PEN eBook March 2023

Motor Control NEWS

for current measurement, phase voltage sensing, DC bus voltage sensing, Hall/encoder interface for
sensored control and protection circuits like overcurrent protection and undervoltage lockout.

GaN devices introduce several advantages in motor drive applications with respect to silicon MOSFET–
based inverters, whose switching frequency is typically limited to 40 kHz by the switching losses and
deadtime is usually in the range of 200–500 ns. GaN-based inverters operate at hundreds of kilohertz
and with a deadtime of tens of nanoseconds, eliminating the harmonics in the torque, reducing
vibrations and increasing the motor efficiency. The higher PWM frequency allows better precision in Onsemi and VW Group announce New All-in-One Hybrid Power
the motor control at low speeds when the HFI algorithm is used in conjunction with sensorless FOC. strategic collaboration on SiC Drive Module Solution from
technology for next-gen EVs Microchip is Designed for

Electric Aviation Applications
onsemi recently announced that it had
reached a strategic partnership with Aircraft manufacturers designing More Electric
Volkswgen AG (VW) to supply power modules Aircraft (MEA) are looking to convert the flight
and chips for a full electric vehicle (EV) control systems from hydraulic to electric to
traction inverter solution for VW’s next reduce weight and design complexities.
generation platform family. The chips are a To meet the needs for an integrated and
component of a larger system optimization configurable power solution for aviation
and offer a solution for the VW models’ front applications, Microchip Technology has
and rear traction inverters. announced a new comprehensive hybrid...

References FOR MORE INFORMATION > FOR MORE INFORMATION >

▶ Lidow et al. (Sept. 30, 2019). “GaN Transistors for Efficient Power New Rare Earth Minerals Deposit Design Higher Density and Lower
1
Conversion.” Third Edition, Wiley. ISBN 978-1-119-59414-7. in Sweden Cost Lidar Systems with New 80
V, 15 A GaN eToF™ Laser Driver IC
▶ EPC. “EPC23102: 100 V, 35 A ePower Stage IC.” LKAB has identified more than one million
2
tonnes of rare earth oxides in the Kiruna area Efficient Power Conversion (EPC) introduces
▶ Lidow, A. (Oct. 4, 2021). “GaN Power Devices and Applications.” Chapter 6,
3
which is located in the far north of Sweden. EPC21701, an 80 V laser driver IC capable of
First Edition, Power Conversion Publications. ISBN 978-0-9966492-2-3. A Swedish state owned mining company, 15 A pulsed current for time-of-flight (ToF)
LKAB, announced last week that it had found lidar applications including vacuum cleaners,
▶ EPC. “EPC9173 - Development Board.”
4
Europe’s largest known deposit of rare earth robotics, 3D security cameras and 3D sensing.
▶ EPC. “EPC9176 - Development Board.” elements. This discovery could reduce the EPC announces the release of the EPC21701, a
5
continent’s reliance on China for this critical laser driver that monolithically integrates an
▶ AutoZine. “Steering.” resource. 80 V, 40 A FET with gate driver and 3.3 V logic
6
level input into a single chip...
▶ Nexteer Automotive. “Steer-By-Wire.”
7
▶ EPC. “Industrial GaN Application: Motor Drive.”
8
FOR MORE INFORMATION > FOR MORE INFORMATION >

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