Motion Applications
Medical Ventilator Control means motion control of one or more pumps to provide, or assist with, patient breathing. Medical ventilators are a vital tool for patient care and come in a few forms which in turn can use several different pump types including piston pumps, diaphragm pumps, compressors, and vacuum pumps.
In this Motion Application:
- Explore Design Considerations & Techniques
The hallmark of ventilators is the need to deliver air to the patient that follows a specified pressure or airflow profile. The exact form of these profiles can be complex and depends on the characteristics and condition of the patient's lungs, and the ability of the patient to perform some of the breathing function on their own. - Examine Application Architecture
The diagram shows a control flow diagram for a typical high performance motion controller with a cascaded outer loop/velocity loop control function. This diagram shows separate analog signal inputs for pressure and airflow transducers. The current loop and amplifier are of the digital switching type which results in very efficient and cool operation. - View Motion Control Solutions
Since 1992 Performance Motion Devices motor control ICs and modules have been used in ventilator and respirator control applications due to their high performance, high reliability, and built in safety features. PMD’s MC73113 Brushless Motor Control IC which includes an outer loop control function is ideally suited for use in ventilators, as is PMD’s ultra-compact N-Series ION Digital Drive module.
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