Design Center: Motor Drives, Robotics & Controls

February 2021
Variations to Perform: Introducing 65 W USB-PD Designs

Figure 1 Block diagram of a secondary-side controlled power adapter using PAG1S and PAG1P

The continuous demand for charging devices in the shortest time is driving the charger market toward fast charging. On the one hand, the power delivered by these charges increases; on the other hand, their size is getting smaller and smaller, so it is necessary to design a higher power density. To meet the growing de
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Date:
02/28/2021

Motor Controller Family Targets High Temperature Environments
TDK Corporation has expanded its Micronas embedded motor controller portfolio to address higher temperature applications. The HVC 4222F and HVC 4422F were developed for operating smart actuators in applications with ambient temperature requirements up to 150 °C. HVC 4222F offers 32k flash memory while the HVC 44
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Date:
02/24/2021
Motor Driver Enables MHEVs Requiring Functional Safety
Texas Instruments (TI) introduced a highly integrated Grade 0 brushless DC (BLDC) motor driver for 48-V high-power motor control systems, such as traction inverters and starter generators in mild hybrid electric vehicles (MHEVs). The DRV3255-Q1 can help designers shrink their motor system size by as much as 30
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Date:
02/22/2021
MLFA AEC Compliant MELFs With High Reliability
When designing high reliability applications, engineers are challenged to find a resistor that meets the electrical demands at a reasonable cost. If AEC compliance is required, the challenge is even greater. Stackpole offers engineers a solution for these applications with its MLFA Series. The MLFA is an A
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Date:
02/16/2021
Army Researchers Expand Study of Ethics, AI
The Army of the future will involve humans and autonomous machines working together to accomplish the mission. According to Army researchers, this vision will only succeed if artificial intelligence is perceived to be ethical. Researchers, based at the U.S. Army Combat Capabilities Development Command, now known
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Date:
02/16/2021
Enabling the Transition to Advanced Motor Control

Click image to enlarge

Figure 1: A three-phase sensor-less PMSM control system that uses a three-phase voltage source inverter

There are two main driving factors behind the adoption of advanced motor control systems based on Permanent Magnet Synchronous Motors (PMSMs) with sensor-less Field Oriented Control (FOC):  improving energy efficiency and strengthening product differentiation. While a PMSM with sensor-less FOC has been pr
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Date:
02/01/2021
New Converters Deserve (and get) Better Inductors

Coilcraft inductor schematic

New inductors are introduced all the time. In such an established industry as ours, it is quite natural that many new products represent small, evolutionary improvements or solve unique problems.  Occasionally, however, major generational breakthroughs do come along that challenge designers into new way
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Date:
02/01/2021