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Turns Ratio Notation 'm'

Question asked by RANZ.THOMAS on Mar 7, 2017

HI:

I'm using the eDesignSuite to design an AC/DC transformer that has a secondary at 135 vdc, 40 Iavg.  The listed turns ratio is 550.26m .... why the 'm' ?

 

Here are the transformer details:

Transformer Specifications:
fsw: 60 kHz - Isat ≥ 982 mA - Lp: 1.62 mH ± 15 % - leakage ≤ 3 %
Primary: Ipk 493 mA - Irms 201 mA - Iavg 123 mA
Aux: Ipk 158 mA - Irms 16 mA - Iavg 3 mA - Prim/Aux turn ratio 5.64
Out 1: Ipk 198 mA - Irms 73 mA - Iavg 40 mA - Prim/Out 1 turn ratio 550.26 m
Out 2: Ipk 5.93 A - Irms 1.99 A - Iavg 1 A - Prim/Out 2 turn ratio 19.79
Out 3: Ipk 581 mA - Irms 88 mA - Iavg 20 mA - Prim/Out 3 turn ratio 9.49

 

Thanks!

Tom

 

Update:  I see it now, just different than expected way for turns ratio.

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