Pulsating input to transformer

190

03:06:16

Why is there a negative voltage at the output? And the input is 10v but the output positive peak is 5v

published 8 years ago

BillyT

8 years ago

Put a trace on the positive input to the transformer, check the waveform. Move the earth to the negative side of the transformer, check the waveforms.

thebugger

8 years ago

No, a transformer acts as a DC decoupler, leaving only AC at the output. Even though in real life you'd end up magnetising the core, the transformer would always struggle to produce AC at the output. Having DC at the output means the primary/secondary wires must've shorted out somewhere inside the transformer.

GuyHardy

8 years ago

Change the inductance value to 5.15 H on the transformer. It will even out. The diodes have capacitance the needs to be balanced out.

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