Microchip Technology Inc

Oxygen Concentrator

Solution

An oxygen concentrator provides oxygen-enriched air by pressurizing ambient air through a molecular sieve which filters out nitrogen under pressure. The removed nitrogen is vented back to air by releasing the pressure. An oxygen concentrator offers a portable and lower maintenance alternative to oxygen tanks. The various components of the oxygen concentrator, such as the motor control/drive circuitry for the air compressor, signal control circuitry for sensors, power management circuitry and the user interface need to work in careful coordination to achieve maximum efficiency.

Various components in oxygen concentrators include:

  • dsPIC® Digital Signal Controller with Digital Signal Processing (DSP) and motor control
  • Signal conditioning and amplification chips
  • Touch control user interface technology

Microchip has what Oxygen Concentrator designers need:

  • Motor drive circuitry: Microchip’s high-performance 16-bit dsPIC33F family of digital signal controllers and other PIC® MCUs offer dedicated peripherals to simplify control and operation of various types of motor used in the compressor.
  • Signal conditioning: Microchip’s digital signal controllers and other PIC microcontrollers feature sophisticated high-resolution Analog-to-Digital Converters (ADCs) to work with a diverse range of sensors. The ADCs can also be tightly integrated with the versatile PWM controllers in the same MCU.
  • Microchip also provides a broad range of analog components for signal processing of sensor outputs prior to analog-to-digital conversion.
  • User Interface: Microchip’s mTouch® sensing solution provides a cost-effective and reliable user interface that can be efficiently integrated with the dsPIC DSCs and PIC MCUs.

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