Core Capabilities

Customized electronic design

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At APPCON TECHNOLOGIES, we consider the client’s satisfaction our priority. For this matter, we place customization at the heart of our services, as we understand that each field of application has its own requirements, either concerning the voltage levels, the size of the printed circuit board, the tolerance of the elements, etc…

Through the projects we have been executing, we have acquired a great experience in developing electronic boards, that involve highly accurate analog signals and high-voltage switchers for power conversion.

Embedded systems design: DSP and microcontrollers

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Through the projects we have been designing, we have acquired a considerable knowledge and know-how in the field of embedded systems design, especially for applications involving electrical motor systems control. Indeed, besides developing reliable and cost-optimized electronic boards, the embedded softwares we integrate in our solutions are thought to be light and to run efficiently in any specified environment. Our solutions integrate the most commonly used system-on-chips (SoC), either digital signal processors (DSP) or microcontrollers. The opening on the SoC manufacturing field is at the heart of APPCON TECHNOLOGIES policy as, through the technology watch, we follow the market trends so that we adapt our solutions to any new hardware support.

Motor control: Sensorless control, Digital control, FOC, low-cost three-phase inverters for line manufacturing

 

box22  Where efficiency, low cost, and reliable control of the electrial motor drive are a concern, the sensorless Field Oriented Control (FOC), also known as vector control, provides the best solution.
The term “sensorless” denotes, in comparison to other drives from the same category of field oriented control, that the speed and/or position sensor is missing. This feature decreases the cost of the drive system, which is always desired, but this is not the only reason for this approach, as some applications have requirements concerning the size, and the lack of additional wiring for sensors or devices mounted on the shaft, due to hostile environments such as high temperature, corrosive contacts, etc..

From the multitude of possible applications, some require the achievement of high speed while having a high torque value only at low speeds. Two applications needing this requirement are washing machines in consumer applications and traction in power train applications.

At APPCON TECHNOLOGIES we master this control aspect through a technological approach known as “field weakening.”

At APPCON TECHNOLOGIES, we have extended the range of motors on which the sensorless control can be implemented:

  •        Permanent magnet synchronous motors
  •        Switch reluctance motors
  •        Brushless DC motors
  •        AC induction motors