How to exhibit a Center-tap Transformer

251

04:48:31

In this illustration I have used 2x transformers with both primary and secondary windings in series to exhibit a Center-tap. As with any isolated circuit, you must reference ground to the secondary circuit before the software can make it work. Therefore I have connected the ground to the center tap for the purpose of giving the output polar opposites from ground.
Alternately, you can change the number of windings to give your transformer a skewed tap if you so desire. For instance a 12v output for tube heaters and an 85v output for drive B+.

published 8 years ago

BillyT

8 years ago

Remember 120 VRMS = 170 V peak

KE4CPC

8 years ago

Yes and P=IV; Relevance to the illustration?

BIPfx

8 years ago

i think what billyt is getting at is that AC mains has a Voltage peak of 170V. When referring to a power source that supplys alternating current, typically we express voltage in terms of the rms value ( Vrms = Vp ÷ (2^0.5) ).

KE4CPC

8 years ago

I understand that. The same calculation can be used to find the RMS and Peak voltages on the secondary side of the transformer as well. While good to know, I don't believe it's pertinent to the illustration of a center tap transformer, but I was hoping to get some kind of anchor there.

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.