[Circuit Designed for Driving Blower in Non-invasive Positive Airway Pressure Respirator]

Zhongguo Yi Liao Qi Xie Za Zhi. 2021 Jul 30;45(4):398-400. doi: 10.3969/j.issn.1671-7104.2021.04.010.
[Article in Chinese]

Abstract

One of critical technologies in a non-invasive positive airway pressure respirator is to output the airflow for meeting the requirement of respiratory patient in breath. In order to develop a safe and reliable blower driving system, a circuit based on the special chips MC33035 and MC33039 was designed. The linear relationship between the input control voltage and the output air flow was achieved. This designed circuit will be embedded in the non-invasive ventilator system as a module. And based on this circuit, the secure and controllable ventilation flow can be performed.

Keywords: airflow control; driver of blower; non-invasive respirator; positive pressure.

MeSH terms

  • Humans
  • Lung
  • Respiration*
  • Ventilators, Mechanical*