Help - Problem charging old UPS dead battery's

[SeaMonkey]

I don't understand how it work either.

I use the cap in series with the bridge, twice more efficient than usual single diode charging.

A capacitor in series with a full wave bridge rectifier
can produce a "voltage doubling" effect at the
output of the rectifier.

Each half cycle the accumulated charge of the
series capacitor will add to the source.

The series capacitor must be non-polarized.

[Guruji]

A capacitor in series with a full wave bridge rectifier
can produce a "voltage doubling" effect at the
output of the rectifier.

Each half cycle the accumulated charge of the
series capacitor will add to the source.

The series capacitor must be non-polarized.

Hi Seamonkey thanks for sharing. What type of cap should be used any AC?
Small caps are good?
I am using a JT using it's BEMF for pulser. SO I just put a cap to the collector and a BR?
Thanks

[sucahyo]

A capacitor in series with a full wave bridge rectifier can produce a "voltage doubling" effect at the output of the rectifier.

Each half cycle the accumulated charge of the series capacitor will add to the source.

The series capacitor must be non-polarized.

That is not what I mean. That is different from what I experience. You are wrong.

Read my post again:
"I use the cap in series with the bridge, twice more efficient than usual single diode charging."

twice more efficient is not the same as twice more voltage.

And I am comparing single diode with bridge.

You are wrong because adding cap in series with the bridge will actually reduce output voltage of my circuit. But the cap will prevent your battery from being charged by too many normal electricity, resulting in more efficient charging, a more efficient circuit, better charging for the battery.

[SeaMonkey]

Hi Seamonkey thanks for sharing. What type of cap should be used any AC?
Small caps are good?
I am using a JT using it's BEMF for pulser. SO I just put a cap to the collector and a BR?
Thanks

The capacitor input to a full wave bridge rectifier will
only produce a doubling effect when the input waveshape
is symmetrical AC; as in normal line AC. The input wave
must have a positive half cycle and a negative half cycle.
The value of the capacitance can be large for increased
current flow to the load.

- - - - -

In those cases where the input waveshape is different
such as a non-symmetrical "Radiant Spike" produced by
inductor discharge, the capacitor will function as a "High
Pass Filter."

This requires the use of a smaller value of capacitance.

In such case only the High Frequency portion of the
Radiant Spike will be permitted to pass to the load.

The lower frequency component will be prevented from
passing to the load.

When you see the classic "h" waveform, the straight up
vertical "I" represents the "Radiant Spike." It has a very
high frequency characteristic.

The lower portion of the "h" which looks like "n" is the
low frequency component which represents the bulk
of the inductive discharge energy.

Sucahyo desires that only the Radiant Spike be passed
on to the load; the remainder of the inductive discharge
remains within his circuit as "feedback."

Sucahyo has said that by use of this capacitor to
process his "Radiant Spike" input to the full wave bridge
rectifier he's increased the efficiency to twice what it
was previously.

Sucahyo, please tell us how you've determined that the
efficiency has doubled.

[sucahyo]

Sucahyo desires that only the Radiant Spike be passed on to the load; the remainder of the inductive discharge remains within his circuit as "feedback."

Wrong. Charging battery with alternate radiant and normal will charge the battery much much better than just radiant.

FWBR will charge the battery with normal and radiant interchangingly.

Sucahyo has said that by use of this capacitor to process his "Radiant Spike" input to the full wave bridge rectifier he's increased the efficiency to twice what it was previously.

Sucahyo, please tell us how you've determined that the efficiency has doubled.

To be clear.
- FWBR output is twice of single diode
- with capacitor in series the output voltage reduce but the efficiency increase