Delta Electronics, Inc.

Industrial Technology Research Institute

Yu-Wei Lee

Wei-Shuo Tseng

Tzi-Cker Chiueh

Chia-Pin Wei

Chih-Hung Hsiao

Chin-Ming Chen

Kuo-Liang Lee

Tzu-Lin Wang

Ming-Hung Hsu

Yi-An Chen

Chih-Kuan Yen

Hsiang-Ting Fang

Chih-Yu Lin

Shang-Wen Hsu

A wireless management system includes a controller and energy storage units. Each of the energy storage units includes an energy storage device and a node substrate. The wireless management system is configured to select a first node substrate from the node substrates based on a signal strength of each of first request signals to join a local network by the controller. The wireless management system is further configured to select a second node substrate from the node substrates based on the signal strength of each of second request signals to join the local network by the first node substrate. The wireless management system is further configured to assign a serial number corresponds to each of the energy storage units based on the local network by the controller.

Wireless management system and method

An electronically commutated motor driving module for driving a motor includes a voltage detector, an electronically commutated motor driver, a current detector, a voltage converter, and a controller. The voltage detector detects supply voltage to generate a voltage detection signal. The electronically commutated motor driver is supplied by the supply voltage to generate, according to an electronically commutated signal, an operating current for driving the motor. The current detector detects the operating current to generate a current detection signal. The voltage converter converts the supply voltage into an internal voltage. The controller is supplied by the internal voltage and generates the electronically commutated signal according to a plurality of control parameters. When the controller determines that a specific event has happened according to the control parameters, the controller stops generating the electronically commutated signal and then stores the control parameters.

Electrically commutated motor driving device and control method thereof

A motor driving circuit including a first and a second driving signal output circuit is configured to selectively output a six-step square wave driving signal from the first driving signal output circuit, or a space-vector driving signal from the second driving signal output circuit to an inverter to drive a motor according to whether an operating power exceeds a power threshold. The first driving signal output circuit is configured to generate the six-step square wave driving signal. The second driving signal output circuit is configured to generate the space-vector driving signal.

Motor driving circuit and control method thereof

A motor driving system is configured for driving a motor, which is under an inertial rotation status without being driven, to stably rotate from an original speed to a target speed. The motor driving system includes a sensing unit, a control unit and a driving unit. The sensing unit detects a real rotating status of the motor. The control unit is electrically connected with the sensing unit and provides a gradual acceleration command based on the real rotating status. The driving unit is electrically connected with the control unit and drives the motor to accelerate stably to the target speed according to the gradual acceleration command. In addition, a motor operation recovering method cooperated with the motor driving system is also disclosed.

Motor driving system and motor operation recovering method

The disclosure provides a controller, a method for adjusting packet flow rule, and a network communication system. The method includes: receiving, by a controller, a health status of a first port and a health status of a second port of each of a plurality of hosts in the network communication system; adjusting a packet flow rule of each of the hosts based on the health status of the first port and the health status of the second port of each of the hosts; and transmitting the adjusted packet flow rule of each of the hosts to each of the corresponding hosts to control each of the hosts to transceive a packet according to the corresponding packet flow rule.

Controller, method for adjusting flow rule, and network communication system

A method for monitoring traffic in a network is provided. The method is used in a communication device, wherein the network is formed by switches and hosts. The method includes: collecting LLDP information, VLAN information, host NIC information and host-tenant mapping information to obtain a physical network topology and a plurality of virtual network topologies; detecting a plurality of physical link loads of the physical network topology; obtaining a target path between two of the hosts or between the switches by analyzing the virtual network topologies; selecting one of the switches on the target path to serve as a mirror switch according to the physical link load corresponding to the target path or a hop count; and receiving mirror traffic transmitted from the mirror switch, and performing packet payload analysis on the mirror traffic.

Method and device for monitoring traffic in a network

A network communication method, a system and a controller of PCIe and Ethernet hybrid networks are provided. In one example of the network communication method, a packet is transmitted or received via a network interface (NIC). The packet is transmitted via an Ethernet over PCIe (EoP) port by adopting a PCIe based EoP architecture based on a PCIe bus for an intra-rack transmission, and the packet is transmitted via an Ethernet port for an inter-rack transmission. If the transmitted packet belongs to a broadcast packet, the network interface receiving the packet discards the packet or transmits the packet to the controller without re-broadcasting the packet again.

Network communication method, system and controller of PCIe and Ethernet hybrid networks

A motor system with a current sensorless control includes a motor, a drive module, and a motor control module. The motor control module controls the motor to rotate through the drive module. The motor control module includes a command generation module, a command conversion module, and an angle generation module. The command generation module generates speed information and transmits the speed information to the angle generation module, and the command generation module generates a voltage command and transmits the voltage command to the command conversion module. The angle generation module generates an electrical angle. The command conversion module converts the voltage command and the electrical angle into a control signal. The motor control module adjusts a phase of a motor input voltage to meet a phase of a motor input current according to the control signal.

Motor system with current sensorless control and method of controlling the same

A method for virtual local area network fail-over management, a system therefor and an apparatus therewith are introduced herein. In the method for virtual local area network fail-over management in a hybrid software-defined network (SDN), a controller with a centralized management authority may manage some fail-over events that occur in each link or switch in a centralized manner. The controller may pre-calculate backup paths for each link or switch in case that fail-over events occur therefrom. Whenever the fail-over event occurs in some specific link or switch, the controller may deploy the pre-calculated backup path in response to the link down or switch down event, which may reduce the convergence recovery time for the VLAN path in case of fail-over events and improve the reliability of data transmission.

Method for virtual local area network fail-over management, system therefor and apparatus therewith

A driving device is electrically connected with an AC power and a brushless DC motor for a fan. The driving device includes a rectifier unit, a filter unit, a switch power conversion unit and a control unit. The rectifier unit receives the AC power and rectifies the AC power. The filter unit, electrically connected with the rectifier unit, filters the rectified AC power and generates a DC power. The switch power conversion unit, electrically connected with the filter unit and the brushless DC motor, receives the DC power and outputs a driving power to the brushless DC motor. The control unit is electrically connected with the switch power conversion unit and the brushless DC motor.

Growing community of inventors

Taoyuan, Taiwan

Yu-Wei Lee