MOTOR DRIVE SYSTEM FOR RESPIRATORY APPARATUS

摘要

A respiratory apparatus includes components to protect operations of the apparatus. For example, in some versions, the apparatus may include a power supply, a motor powered by the power supply, and a transient absorption diode circuit between the motor and the power supply. The transient absorption diode circuit may be configured to absorb energy generated by the motor from rotational kinetic energy. Such absorption may serve to protect the components of the apparatus. In some examples, the apparatus may include a fault mitigation integrated circuit (IC). The IC circuit may be included in the respiratory apparatus to detect one or more faults based on physical and system parameters of the apparatus. The fault mitigation integrated circuit may generate a signal to stop the motor based on the detected fault, and may digitally communicate with a processor information about the detected fault.

主权项

1. A respiratory apparatus comprising:
a power supply coupled to a bus; a blower configured to generate a flow of breathable gas, the blower including a motor powered by the power supply via the bus, wherein the motor generates energy at certain times; and a transient absorption diode circuit on the bus between the motor and the power supply to absorb the energy generated.