Why Is My Full Bridge Rectifier Output Still Positive?

[slayercsa]

I wanted to make a negativer full bridge rectifier circuit and filter it, so that after it went past the bridge, the output voltage would be full wave but negative. Tried reversing the diodes on the actual full bridge rectifier but doesn't work.

Refer to the diagram on the left,is it correct? My output waveform is still positive.

 

[Averagesupernova]

You haven't really reversed anything at all between the two circuits. They are simply drawn differently.

 

[ravenprp]

Hello there,

Thank you for sharing your circuit design and the issue you are facing. Based on the diagram you provided, it seems like you have correctly implemented a negative full bridge rectifier circuit. However, the output voltage may still be positive due to the type of load you are using or the type of filter you are using.

Firstly, make sure that the load you are using is suitable for a negative output voltage. If the load is designed for a positive voltage, it will not work with a negative output. Additionally, check the specifications of your filter to ensure that it is capable of filtering a negative waveform.

If both the load and filter are suitable for a negative output, then there may be an issue with the components used in your circuit. Make sure that all the diodes and capacitors are connected correctly and have the correct polarity. A small mistake in the component placement can result in a positive output instead of a negative one.

If you are still facing issues after checking these factors, it would be helpful to provide more information about your circuit and components used, so that a more accurate solution can be provided.

I hope this helps. Best of luck with your circuit design!