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This paper introduces a highly-efficient two-stage DC-DC converter with wide input voltage. Based on the digital control technology, it uses two-stage DC-DC conversion. This paper describes the circuit topology, working principle and control method of the convert in detail. The converter consists of the former input circuit, intermediate conversion circuit, output rectifying circuit and feedback control...
This paper is based on the current situation of Chinese telecommunications network infrastructure, propose the technical solutions of power expansion, tenants expansion, tenants management, battery expansion and battery hybrid use management in the sharing and co-construction power site, the management methods of independent charged, independent discharging and hybrid use for different batteries and...
At current, the communications industry is still at the fast-growing stage. A large number of new base stations and equipment rooms will surely bring an enormous growth in energy consumption. As the enterprises need to maintain a sustainable development and the operators have to face the financial and social pressures from high energy consumption, it is very urgent for the operators to build green...
Supplying power to traditional communication infrastructure becomes more complex and diversified as multiple energy supplying sources are introduced to the infrastructure such as: 1. Diesel Generators 2. Solar & Wind 3. VRLA (Valve Regulated Lead Acid) Batteries 4. Gel & Lithium Iron Phosphate Batteries 5. Variable demand of site electricity requirements e.g. 48V DC, 24V DC, 220V AC This paper...
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