Hello,
I was testing a bridge rectifier using 4 germanium diodes (1N60). The output should look like a sine squared plot with only positive voltage but I am getting the same shape but with average voltage zero (basically the final waveform has a negative DC bias). This is highly undesirable for my project.
PS: I tried Schottky diodes with same issue and I cannot use silicon diodes or bridge rectifier ICs. This is application specific so I cannot use batteries or clampers either.
Can someone please suggest a solution?
Thanks!

 

Why do many newbies seem to think we are clairvoyant?
How can we answer your question when we don't know what you exact circuit is, or the what the input and output waveforms look like?
The solution, based upon the information you have given, is to configure the bridge so it works.

 

My input is a low voltage sine wave and my output should be like I described above, just without the DC offset.

 

The only thing I can think of as you will not give us any information is that you have the coupling on your scope set to AC.

 

Could you be specific about what more information you need? I gave all the info I could think of. (I do not have much experience with circuits)

 

Give us a circuit diagram to work with, and screen shots of your scope settings.

 

Could you be specific about what more information you need?

We need a diagram of your exact circuit including the source of the AC and how everything is grounded.

 

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Re-read post #2, then re-read post #7, then re-read post #8.

ak

 

Magic 8 Ball said, Answer hazy, ask again.

 

Could you be specific about what more information you need? I gave all the info I could think of. (I do not have much experience with circuits)

A schematic, pictures of the waveforms, and location(s) being probed.

 

A schematic diagram showing all components and connections, with a value and reference designator for each component.

Pretty please with sugar on top.

ak

 

Hello all,

Thank you for your replies.
I couldn't get to the lab until now so I decided to send a pic with the connections and the output I saw on the scope. I hope that is clear enough. Apologies if it isn't. I gave the values of components and the place where I have connected the input and the scope probes.

Thank you!

 

Sounds like the scope is AC coupled on the input.
It needs to be DC coupled.

 

Thank you!