NCP13992MM240WGEVB All-in-One Power Supply Evaluation Board User's Manual 240 W Power Supply using NCP1618,NCP13992, NCP4306 and NCP431
■This evaluation board user’s manual provides basic informationabout a high efficiency, low no−load power consumption referencedesign that was tailored to power All−in−One PC or similar type ofequipment that accepts 12 VDC on the input. The power supplyimplements PFC front stage to assure unity power factor and lowTHD, current mode LLC power stage to enhance transient responseand secondary side synchronous rectification to maximize efficiency.This design note provides brief information about controllers’implementation into design, their interconnections and cooperation.Please use links in literature section to get detail technical information about NCP1618, NCP13992, NCP4306 and NCP431.
■The NCP1618 is an innovative multimode power factor controller.The controller automatically change operation mode depending onconditions so that the efficiency is optimized over the line and loadrange. In very light−load conditions, the circuit enters a soft−skipcycle mode. NCP1618 enters Continuous Conduction Mode (CCM)under Heavy−Load Conditions, while Frequency−Clamped CriticalConduction Mode (FCCrM) is used for Medium− and Light−LoadConditions. PFC−OK Output serves as Brown−Out signal for LLCcontroller as well as communication interface which sends NCP1618into stand−by mode (using Soft−skip cycles).
■The NCP13992 is a high performance current mode LLC controllerfor half bridge resonant converters. This controller implements 600 Vgate drivers, simplifying layout and reducing external componentcount. In applications where a PFC front stage is needed, theNCP13992 features a dedicated output to drive the PFC controller.This feature together with quiet skip mode technique further improveslight load efficiency of the whole application. Both controllers providea suite of protection features allowing safe power supply operation inany application. Built−in high voltage input function easeimplementation of the controllers in all applications startup circuits.
●Features:
■Wide Input Voltage Range
■PFC Controller with Multimode Operation
■High Efficiency/ Low No−load Power Consumption
■No Auxiliary SMPS, Fast Startup
■Near Unity Power Factor
■Low Mains & Overload Protection
■Thermal Protection
■Regulated Output Under any Conditions
■Excellent Load & Line Transient Response
■All Magnetics Available as Standard Parts
■Small Form Factor
■Extremely Low No−load Consumption
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NCP1618 、 NCP13992 、 NCP4306 、 NCP431 、 NCP13992MM240WGEVB |
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[ AOI ][ Server Power ] |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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August, 2020 |
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Rev. 0 |
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EVBUM2753/D |
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3.6 MB |
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