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LTspice IV: Using Transformers

Transformers and coupled inductors are key components in many switching regulator designs to include flyback, forward and SEPIC converters. They perform critical function in providing an isolation barrier, enabling high step-down or step-up ratios and accommodating multiple or inverting outputs. Although it is possible to make a dedicated subcircuit for a specific transformer, LTspice IV preferred method is to define a separate inductor for each transformer winding and then couple them all together magnetically via a single Mutual Inductance (K) statement. This video will provide an overview on how to define a transformer using inductors, specify the mutual inductance via a K statement and lastly show how to add multiple windings to a simulation.

4/8/2016 6:11:48 PM

LTspice IV Using Transformers

ImagemNúmero de peça do fabricanteDescriçãoAvailable QuantityPreçoVer detalhes
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757AEDD#PBFIC REG CTRLR MULT TOPOLOGY 10DFN1055 - Immediate$6.62Ver detalhes
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757AEDD#TRPBFIC REG CTRLR MULT TOPOLOGY 10DFN2918 - Immediate$6.62Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757AEMSE#PBFIC REG CTRLR MULT TOP 10MSOP74 - Immediate$5.92Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757AEMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP5749 - Immediate$5.92Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757AHMSE#PBFIC REG CTRLR MULT TOP 10MSOP48 - Immediate$7.17Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757AHMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP0 - Immediate$4.16Ver detalhes
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757AIDD#PBFIC REG CTRLR MULT TOPOLOGY 10DFN2547 - Immediate$7.06Ver detalhes
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757AIDD#TRPBFIC REG CTRLR MULT TOPOLOGY 10DFN2500 - Immediate$7.06Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757AIMSE#PBFIC REG CTRLR MULT TOP 10MSOP650 - Immediate$6.32Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757AIMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP2725 - Immediate$6.32Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757AMPMSE#PBFIC REG CTRLR MULT TOP 10MSOP10 - Immediate$15.34Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757AMPMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP0 - Immediate$9.46Ver detalhes
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757EDD#PBFIC REG CTRLR MULT TOPOLOGY 10DFN616 - Immediate$5.92Ver detalhes
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757EDD#TRPBFIC REG CTRLR MULT TOPOLOGY 10DFN6111 - Immediate$5.92Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757EMSE#PBFIC REG CTRLR MULT TOP 10MSOP919 - Immediate$5.92Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757EMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP9827 - Immediate$5.92Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757HMSE#PBFIC REG CTRLR MULT TOP 10MSOP197 - Immediate$7.17Ver detalhes
IC REG CTRLR MULT TOP 10MSOPLT3757HMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP0 - Immediate$4.16Ver detalhes
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757IDD#PBFIC REG CTRLR MULT TOPOLOGY 10DFN0 - Immediate$6.32Ver detalhes
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757IDD#TRPBFIC REG CTRLR MULT TOPOLOGY 10DFN7701 - Immediate$6.32Ver detalhes

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