Huawei Technologies Co., Limited

Santak Electronic (shenzhen) Co., Ltd.

Zhimin Shen

Wentao Zhou

Jun Yang

Qingshun Liu

Wenyong Han

Huafen Ouyang

Qingfen Liu

Yanren Chen

Xuegang Liu

Dianfu Chen

The disclosure provides an uninterruptible power supply, including: an alternating current input terminal, configured to connect to mains electricity; an alternating current output terminal, configured to connect to a load; a rectifier and an inverter sequentially connected between the alternating current input terminal and the alternating current output terminal, where direct current buses are connected between the rectifier and the inverter; a capacitive element, connected between a positive electrode and a negative electrode of the direct current buses; a rechargeable battery and a bidirectional DC/DC converter, where the bidirectional DC/DC converter is connected between the rechargeable battery and the direct current buses; and a direct current bus charging and discharging module that includes a switch assembly and at least one resistor, the switch assembly including a discharging switch and at least one charging switch, where the at least one charging switch is configured to enable a power-supply source to precharge the direct current buses via the at least one resistor, and the discharging switch is configured to discharge, independently or in cooperation with the at least one charging switch, the direct current buses via the at least one resistor.

Uninterruptible power supply

The present invention provides a Miller clamp drive circuit, including a drive chip which includes an output terminal configured to output a driving signal, a clamp terminal, a power terminal and a controllable switch connected between the clamp terminal and the power terminal; a drive resistor, one terminal of which is connected to the output terminal of the drive chip and the other terminal of which is used to connect to a control electrode of a power switching transistor; and a Miller clamp circuit including a first voltage divider circuit which is connected between the other terminal of the drive resistor and the clamp terminal and configured to have a preset voltage drop, and a second voltage divider circuit connected between the clamp terminal and the power terminal. The Miller clamp drive circuit of the present invention increases the Miller clamp voltage and decreases the tailing time of the power switching transistor.

Miller clamp drive circuit

A redirection method and apparatus in which a first network device receives a service request from a terminal device, where the request is used to request a service related to a first edge APP; and when the first edge APP is unavailable and a second edge APP is available, redirects the service request to the second edge APP, where the first edge APP and the second APP respectively correspond to a first DNAI and a second DNAI. The first DNAI represents a deployment location of the first edge APP, the second DNAI represents a deployment location of the second edge APP, the deployment locations represented by the first DNAI and the second DNAI meet a preset condition, and the second edge APP is in edge APPs corresponding to the second DNAI, and has a sane service provider and function as the first edge APP.

Service redirection method and apparatus

The present application discloses a packet exchange method and a related device. The method includes: obtaining, by a first device, a packet by using a Network Convergence Protocol (NCP) layer of the first device; and sending, by the first device, the packet to an NCP layer of a second device by using the NCP layer of the first device, where the NCP layer is located at a data link layer of a user plane, and the NCP layer of the first device and the NCP layer of the second device form a direct data exchange channel between the first device and the second device; and the first device is a terminal and the second device is a core network device, or the first device is a core network device and the second device is a terminal.

Packet exchange method and related device

The present invention provides a capability opening system, a capability opening gateway, a capability opening agent, and a capability opening method of a wireless network. The capability opening system includes the capability opening gateway, a UE, and an application server, where the UE includes an application client and the capability opening agent; and the application client exchanges information of a service with the application server through a first interface, the application server exchanges capability information of the wireless network with the capability opening gateway through a second interface, and the capability opening agent exchanges related radio environment information with the capability opening gateway through a third interface. In embodiments of the present invention, a capability opening agent is added to a UE.

Growing community of inventors

Shenzhen, China

Zhimin Shen