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LTspice: Simple Steps for Simulating Transformers | …
https://www.analog.com/en/technical-articles/ltspice-basic-steps-for-simulating-transformers.html
Here is the simple approach to simulate a transformer in LTspice IV: Draft an inductor for each transformer winding Couple them using a single mutual inductance (K) statement via a SPICE directive: K1 L1 L2 L3 1 The last entry in the K statement is the coupling coefficient, which can vary between 0 and 1, where 1 represents no leaka
https://groups.io/g/LTspice/topic/50201916
Subject: RE: [LTspice] Audio amplifier transformers Date: Sat, 11 May 2013 10:29:07 +0100 Files > Examples > Apps > Push Pull Valve transformers > transformer.cir Has some examples of valve output transformers and the theory from the electronics designers handbook 1957 and finally
Drop down transformer models for LTSpice - Intact Audio
https://www.intactaudio.com/forum/viewtopic.php?t=527
When you download it, rename XFMRASSY.TXT to XFMR.ASY and place it in the "sym" folder for LTSpice. Presto. You get a drop down menu of: XFMR (a more or less "ideal" 1:1 transformer) OutXFMR_5k:8 (100hy, 200 ohm) 5kohm to 8 ohm output transformer. OutXFMR_10k:8.
https://groups.io/g/LTspice/topic/modeling_a_transformer/75515829?20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,75515829
LTspice models transformers correctly with a K ratio. You don't need to define the primary and secondary impedance. ... For audio output transformers, also remember that the DC current through the primary degrades the transformer. Watch for that in the transformer's specs. It is a nonlinear effect, so you won't see it in your simulations if ...
LTSPice - Inductance of a transformer primary? | diyAudio
https://www.diyaudio.com/community/threads/ltspice-inductance-of-a-transformer-primary.379888/
2021-11-27 12:46 pm. #2. Mains transformers have primary inductances in the realms of Henries. For a 250VA power transformer you could start at 10H. The secondary inductance is then defined by the primary inductance divided by the turns ratio squared. •••.
How to create a transformer using LTSpice
https://web.cecs.pdx.edu/~tymerski/ece222/How%20to%20create%20a%20transformer%20using%20LTSpice.pdf
This transformer won’t work properly because LTSpice does not know this is a transformer. This looks like two inductors are in the circuit. We need to tell LTSpice these are transformer. We will use a Spice directive to add a K-Statement (“K Lp Ls 1 …
https://groups.io/g/LTspice/topic/50211683
Le 06/08/2015 22:47, jasoto32@... [LTspice] a écrit : I have to perform a simulation that contain a Audio Isolation transformer. The datasheet of the transformer only have the following information: 200Watts. Primary 2.0 ohms. Secondary 0.5 ohms. Turn Ratio 2:1.
LTspice Transformer Library, Transformer design, …
https://www.we-online.com/web/en/passive_components_custom_magnetics/midcom_lt_spice.php
LTspice IV is a free, high-performance, SPICE simulator software by Linear Technology which is widely used in the industry. The Wurth Electronics Midcom libraries contain LTspice models for over 650 of our power transformers, including designs for lighting and metering applications, PoE and PoE+, isolated DC/DC converters, flyback and offline ...
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