Zte Corporation

Yundong Yang

Dacheng Zheng

Qiong Wu

Hong Wang

Zhe Liu

He Zhou

Bei Li

Fangchun Wang

Yanghuai Gao

Jingsi Wang

Mingjin Wang

Zhirong Cheng

The present disclosure provides a method for controlling soft start of a switching rectifier, which comprises: acquiring an external environmental parameter of the switching rectifier and a power supply characteristic parameter of an object to be powered, establishing a voltage start strategy and/or a current start strategy for the switching rectifier according to the external environmental parameter and the power supply characteristic parameter, and controlling a voltage and/or a current of the switching rectifier to start to a full-load voltage and/or a full-load current according to the voltage start strategy and/or the current start strategy. The present disclosure further provides a device for controlling soft start of a switching rectifier. The technical scheme of the present disclosure is able to provide a suitable voltage and/or current start approach for a switching rectifier according to power supply requirements of an object to be powered and operating environment of the switching rectifier.

Method and device for controlling start of switching rectifier, and storage medium

A circuit for a paralleled power supply module to implement automatic current-sharing in proportion comprises: at least two power supply modules, and an output current feedback loop and an output voltage adjusting loop corresponding to each power supply module. Wherein, the output current feedback loop comprises an output current sample amplifying unit, configured to collect output current of a power supply module and amplify the collected output current into a voltage signal according to an inverse proportion of the output proportion set for each power supply module, and a current-sharing controller unit configured to adjust an output voltage of each power supply module; and the output voltage adjusting loop is configured to compare the output voltage of the current-sharing controller unit with a reference voltage, and control the output voltage of the power supply module to adjust the output current.

Circuit for paralleled power supply module to implement automatic current-sharing in proportion

Provided are a digital current equalizing device, an analog current equalizing device, a current equalizing method and a system. The digital current equalizing device comprises: an output current sampling amplifying module (), a digital processing module (), and a main power frequency conversion module (). An input terminal of the output current sampling amplifying module () connects to an output loop of a power supply, and an output terminal of the output current sampling amplifying module () connects to a current equalizing bus through a resistor R, wherein the digital processing module () is configured to adjust an output voltage reference signal Vr according to a difference between an output voltage signal Vof the output current sampling amplifying module () and an voltage signal Vbus of the current equalizing bus, and the main power frequency conversion module () is controlled to adjust the voltage according to the adjusted output voltage reference signal Vr'. The technical solution is easy to implement and can improve the reliabilities of each power supply module and the whole power supply system.

Digital current equalizing device, analog current equalizing device, current equalizing method and system

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Shenzhen, China

Yundong Yang