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Transformer Center Tap Primary

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8 Threads found on Transformer Center Tap Primary
Hi, I have a circuit with two transformer.Each of which has two phases in the primary winding. But the problem is when I disconnect one of phases (for example L1) from Tr2, there is still voltage in that disconnected phase that is due to return voltage of Tr2. What is the reason for
sure, use a transformer with the output center tapped. connect 40V to center tap, and put 5V square wave on primary
The following simple balanced modulator may help you to understand. We have a 10MHz carrier input on N1 of the transformer. We apply a modulation signal at the center-tap on the primary. In the first plot, we have a10kHz pure sine-wave modulation with the balancing pot P1 just of the 50% mark. You can see the carrier, (...)
smps transformer are winded in different method
Have you decided which controller you'll use? SG3524, SG3525, microcontroller or something else? If you want to do it without center tap transformer, use full-bridge topology instead of push-pull. If the transformer primary voltage rating is 12V, secondary rating of 240V won't be enough. Hope this (...)
This is essentially how power is transferred around a city, country and the world. For safety the center tap which is Neutral is connected to safety ground. The isolation between primary and secondary is provided by the dielectric properties of the transformer prevent arcing across windings a shunt stray lightning to (...)
hello everyone: There are only function generator and digital CRO for tseting the transformer. I have problems on ways of connections and input signal for testing on center- tap one. Pl give some suggestions to me... Best regards
Hello I'm trying to figure out how to drive VFD (not variable freq drive but vaccum flourescent display) and it calls for 2.5 AC fillament drive but all example schematics show a transformer with a center tap. My questions are - how does one get that transformer and what about the primary coil? How (...)