Rectifying bridge.

The peak DC output voltage of a bridge rectifier is proportional to the amplitude of the AC voltage it is fed. The AC voltage is determined by the winding ratio of the power transformer. To increase the DC voltage would require replacing the power transformer.

The DC voltage is equal to the peak of the AC voltage minus about .7 volts that is dropped across the rectifying diode. The peak of the AC voltage is the RMS value divided by .707, which is about 15% more than the RMS as TWL stated.

Unless you really, really, really know what you are doing, it would most likely result in a lot of smoke. With all due respect, by the sound of your question I don't think it is something you would want to try without doing a lot more studying about electronic theory.

Bridge rectifiers are rated for the amount of current they can handle, not the voltage.

Ok, my point was that the bridge itself does not determine the amplitude of the DC voltage so they are not rated in this respect. Diodes do have a voltage rating, the PRV (Peak Reverse Voltage). This is the maximum that they can handle when reversed biased. An important rating for sure when designing a power supply. But it does not affect the output so I didn't bring it up.

Thanks for keeping me on my toes Sean.

Mention a bit more Albert. Enlighten us.