Abstract: According to one aspect of the invention, a motor control system for driving a motor for a powered air purifying respirator (PAPR) is provided. The motor control system includes a control printed circuit board assembly (PCBA) including a control processing circuitry and a motor drive PCBA in communication with the control PCBA and the motor. The motor drive PCBA includes a motor drive processing circuitry. The control processing circuitry is configured to configure the motor drive processing circuitry with at least one operating characteristic. The motor drive processing circuitry is configured to drive the motor according to the at least one operating characteristic.

Abstract: According to the present disclosure, connectionless base IP protocol is leveraged to transfer streaming voice to a destination telephony device. As such, the disclosed IP telephony peripheral adjunct to a computer includes an interface to the computer, a controller and memory specifying the destination IP address, a packetizer coupled to the controller and memory for packetizing outbound digitized voice into at least one outbound IP packet, and a network interface for transmitting the outbound IP network onto a network which may involve a LAN, WAN or the Internet. The disclosed IP phone peripheral also includes an extractor coupled to the memory and controller for extracting inbound digitized voice within an incoming IP packet whose source address correlates to the destination IP address or addresses stored in the memory.