VideoLibrary

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

AbbildungHersteller-TeilenummerBeschreibungVerfügbare MengePreisDetails anzeigen
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757AEDD#PBFIC REG CTRLR MULT TOPOLOGY 10DFN1055 - Sofort$5.94Details anzeigen
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757AEDD#TRPBFIC REG CTRLR MULT TOPOLOGY 10DFN5423 - Sofort$5.94Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757AEMSE#PBFIC REG CTRLR MULT TOP 10MSOP289 - Sofort$5.47Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757AEMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP5945 - Sofort$5.31Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757AHMSE#PBFIC REG CTRLR MULT TOP 10MSOP108 - Sofort$6.63Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757AHMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP0 - Sofort$3.73Details anzeigen
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757AIDD#PBFIC REG CTRLR MULT TOPOLOGY 10DFN2547 - Sofort$6.53Details anzeigen
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757AIDD#TRPBFIC REG CTRLR MULT TOPOLOGY 10DFN2500 - Sofort$6.34Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757AIMSE#PBFIC REG CTRLR MULT TOP 10MSOP650 - Sofort$5.85Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757AIMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP2725 - Sofort$5.68Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757AMPMSE#PBFIC REG CTRLR MULT TOP 10MSOP0 - Sofort$14.19Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757AMPMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP0 - Sofort$8.49Details anzeigen
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757EDD#PBFIC REG CTRLR MULT TOPOLOGY 10DFN616 - Sofort$5.47Details anzeigen
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757EDD#TRPBFIC REG CTRLR MULT TOPOLOGY 10DFN6713 - Sofort$5.31Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757EMSE#PBFIC REG CTRLR MULT TOP 10MSOP775 - Sofort$5.31Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757EMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP7531 - Sofort$5.31Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757HMSE#PBFIC REG CTRLR MULT TOP 10MSOP147 - Sofort$6.63Details anzeigen
IC REG CTRLR MULT TOP 10MSOPLT3757HMSE#TRPBFIC REG CTRLR MULT TOP 10MSOP0 - Sofort$3.73Details anzeigen
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757IDD#PBFIC REG CTRLR MULT TOPOLOGY 10DFN0 - Sofort$5.85Details anzeigen
IC REG CTRLR MULT TOPOLOGY 10DFNLT3757IDD#TRPBFIC REG CTRLR MULT TOPOLOGY 10DFN7701 - Sofort$5.68Details anzeigen

Related Videos

LT3757
LT3757

Datum der Veröffentlichung: 2012-05-18

Related Product Highlight

Invertierender Regler LT3757 Der LT3757 ist ein DC/DC-Stromregler mit großem Eingangsbereich, der in der Lage ist, entweder positive oder negative Ausgangsspannungen zu erzeugen.
LT3799 Isolated LED Controller Analog Devices' LT 3799 is ideal for LED applications requiring 4 W to over 100 W of LED power and is compatible with standard TRIAC in-wall dimmers.

Related Articles and Blogs

Webinar - Topologie ist nur der Anfang: Aufbau zuverlässiger SEPIC-Wandler mit großem Eingangsbereich Erzielen Sie ein robustes, produktionsgerechtes Design, indem Sie das Komponentenverhalten, die elektrische Belastung und die praktischen Designgrenzen durch die Auswahl der SEPIC-Topologie verstehen.
Offline LED Lighting Simplified As environmental concerns over traditional lighting increase and the prices of LEDs decrease, high power LEDs are fast becoming a popular lighting solution for offline applications.
Retrofit LED Bulbs and Drivers for Existing TRIAC Dimmers In most incandescent home lighting systems today, it’s taken for granted that you can install a dimmer that will allow you to control the amount of light coming from a fixture or lamp.

Related Product Training Modules

LT3799 Offline Isolated Flyback LED Controller The LT3799 is an offline, isolated, flyback LED controller with an input range of 90 VAC to 265 VAC and active power correction.
LT3757 and LT3758 - Boost, Flyback, SEPIC and Inverting Controllers Analog Devices' LT3757 & LT3758 are highly versatile DC/DC controllers that can be designed into boost, flyback, SEPIC, and inverting power supply topologies.