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Controllers allow flexible driving of small electric motors

Posted: 06 Nov 2014     Print Version  Bookmark and Share

Keywords:Micronas  electric motor  controller  MOSFET  CMOS 

Micronas has rolled out its next generation of control solutions developed in a mixed-signal high-voltage (HV) CMOS technology. According to the company, the devices allow very compact implementations of complete motor servo controllers.

The product line-up is geared to be directly connected to the motor windings without the need for external MOSFETs and can further be directly supplied by the 12V car batteries without the need for external voltage regulators. The internal LIN transceiver allows the direct connection to the LIN bus. In addition, all family members are powered by an ARM Cortex-M3 core offering high processing efficiency and low interrupt latency, enabling the implementation of complex commutation schemes to optimise the size-torque ratio of the electric motor.

[In related news: Micronas uses 0.18um CMOS process for BLDC motor controllers]

Micronas controller

The innovative portfolio also provides a unique level of flexibility in driving small motors, stated the company. The power bridges of the devices can be programmed to drive alternatively BDC, BLDC or stepper motors. By that, customers can significantly reduce their cost of ownership, as a single device can be used for several different motor control applications, especially preserving the software invest, when going from BDC or stepper to BLDC motor design. The use of an industry standard core and a modern development tool-chain combined with Micronas' demonstration software and application notes guarantees an efficient implementation of the customers' production software, gaining fast time to market, noted Micronas.

The controller family from Micronas is aimed to address the need for intelligent actuators in applications such as HVAC flaps, active grille shutters, pumps (such as water pumps), air cooling fans (such as LED cooling fans), mechanical actuators in bending lights, and more.

First family members will be announced in 1H15.

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