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SINO TECHNOLOGY

Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .

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SUNBEAM

Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales

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GREEN POWER

Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc

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DATAPOWER

Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.

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SEONG-HEE

Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc

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STD

Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.

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26650 battery

release time:2024-04-18 Hits: Popular:AG11 battery

　　Design of power fault protection circuit and power switching power supply circuit based on LTC3780

　　Power fault protection circuit and power switching power supply circuit design based on LTC3780 - LTC3780 is a high-performance buck-boost switching regulator controller that can operate when the input voltage is higher than, lower than, or equal to the output voltage. The constant-frequency current-mode architecture provides a phase-lockable frequency up to 400kHz. With wide input and output ranges from 4V to 30V (36V maximum) and seamless switching between operating modes, the LTC3780 is ideal for automotive, telecom and battery-powered systems. The operating mode of the controller is determined through the FCB pin.

　　LTC3780

　　The LTC3780 is a high-performance buck-boost switching regulator controller that operates with input voltages above, below, or equal to the output voltage. The constant-frequency current-mode architecture provides a phase-lockable frequency up to 400kHz. With its wide input and output range of 4V to 30V (36V maximum) and seamless switching between operating modes, the LTC3780 is ideal for automotive, telecom and battery-powered systems.

　　The operating mode of this controller is determined through the FCB pin. For boost applications, the FCB mode pin enables selection between Burst Mode (Burst Mode), Discontinuous Mode and Forced Continuous Mode. During buck operation, the FCB mode pin selects between skip cycle mode, discontinuous mode, and forced continuous mode. Burst mode operation and skip cycle mode provide efficient operation under light load conditions, while forced continuous mode and discontinuous mode operate at a constant frequency.

　　LTC3780 power failure protection circuit

　　Fault protection is provided by an output overvoltage comparator and internal foldback current limit circuitry. The Power Good output pin signals when the output is within 7.5% of its design trim point.

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