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  • Understanding Telecom Base Station Power Systems: Structure and Working Logic of -48V DC UPS

    Understanding Telecom Base Station Power Systems: Structure and Working Logic of -48V DC UPS

    Jun , 30 2026
    Quick Answer A telecom base station power system is a high-reliability -48V DC UPS system that ensures uninterrupted operation of communication equipment. It combines AC input distribution, high-frequency rectifier modules, battery backup, DC distribution, and monitoring control. When grid power is normal, rectifiers supply DC power and charge batteries. When power fails, batteries instantly take ...
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  • Industrial Battery Charger Topology Selection Guide: Boost PFC vs Totem Pole PFC

    Industrial Battery Charger Topology Selection Guide: Boost PFC vs Totem Pole PFC

    Jul , 08 2026
    Quick Answer: How to Select the Right PFC Topology for Industrial Battery Chargers? Industrial battery charger topology selection mainly depends on power level, efficiency requirements, thermal management, and application conditions. Boost PFC is a simple and cost-effective solution widely used in industrial charger designs, while Totem Pole PFC provides higher efficiency and power densi...
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  • DC UPS SCR Rectifier Explained: Working Principle, Phase Control and Battery Charging

    DC UPS SCR Rectifier Explained: Working Principle, Phase Control and Battery Charging

    Jul , 09 2026
    Quick Answer A SCR (Silicon Controlled Rectifier) is a semi-controlled power semiconductor device widely used in industrial DC UPS systems to convert AC power into regulated DC output. Unlike high-frequency MOSFET or IGBT switching rectifiers, SCR rectifiers rely on industrial-frequency phase-shift triggering and natural commutation to control DC output voltage. By adjusting the SCR firing angle (...
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