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How to wire a pulse transformer?

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smiles

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Wiring pulse transformer

Anyone know how to wiring pulse transformer (formula ...), the basic difference between it and wiring normal transformer ?
thanks !!!
 

Re: Wiring pulse transformer

Smiles,
A pulse transformer is wired the same as an "ordinary" transformer. However, because the pulse transformer is designed to preserve fast rise and fall times, you must be careful of your layout to minimize shunt capacitances and series inductances. A pulse transformer is designed to have low leakage inductance and low inter-layer winding capacitance. For more information see
http://www.rhombus-ind.com/app-note/circuit.pdf
http://www.st.com/stonline/books/pdf/docs/3575.pdf
Regards,
Kral
 

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    smiles

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Re: Wiring pulse transformer

I'm using (except my 20 years of experience) only the Faraday's equation anytime I need to design a switching transformer. Try yourself.
 

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    smiles

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Wiring pulse transformer

Here are two classic older magnetics design books. They discuss pulse transformers.

"Soft Ferrites - Properties and Applications", Snelling, 1969


"Ferrites for Inductors and Transformers", Snelling and Giles, 1983
 

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    smiles

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Wiring pulse transformer

thanks !!! Could you tell me some about its operation, how is the input that the output are pulses ???
 

Re: Wiring pulse transformer

smiles said:
thanks !!! Could you tell me some about its operation, how is the input that the output are pulses ???
Click to expand...

A pulse transformer is driven with a pulse or a pulse train. On the secondary the pulse will be bipolar (even the primary pulse is unipolar) because of the core magnetisation. Thus it require in the secondary a circuit to supress unwanted polarity (usually one or two diodes) and a load near nominal value for which the transformer windings have been calculated.
Lower load means higher spikes. Higher load means lower spikes but also lower pulse amplitude.
 

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    smiles

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Re: Wiring pulse transformer

Thanks so much :)
 

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