Tie PSU's for more current.

K-amps · 25th April 2004, 02:58 PM

This may have been covered as part of other threads but not sure if it has had it's own thread... so here I ask:

I am trying to beef up the power supply of a Japanese Integrated amp. (name not imp).

I have another amp (same model) that is beyond repair but PSU is good, How can I use the PSU of one to beef up the other?

1) Can I tie the two DC rail together? (Power cap to power cap)
2) Or Tie the AC secondaries of the Trafo's using just one bridge rectifier?
3) Or add an aftermarket Toroid (which may be a few volts higher or lower than stock) and will be mated to the stock supply?

Any thoughts and reason for your conclusions will be welcome.

Jan Dupont · 25th April 2004, 03:59 PM

Please inform us if the rail voltages are the same for both amp....

K-amps · 25th April 2004, 04:13 PM

In situation 1 and 2 it is the same model amp (therefore same voltages more or less) for both amps.

In the third option (I am think of using an after market Toroid/ third party Toroid I have lying around) , the voltages may be 5v more or 5v less than the stock I will "add" this to.

thanks!

25th April 2004, 02:58 PM	#1
K-amps diyAudio Member Join Date: Nov 2003 Location: Indiana	Tie PSU's for more current. This may have been covered as part of other threads but not sure if it has had it's own thread... so here I ask: I am trying to beef up the power supply of a Japanese Integrated amp. (name not imp). I have another amp (same model) that is beyond repair but PSU is good, How can I use the PSU of one to beef up the other? 1) Can I tie the two DC rail together? (Power cap to power cap) 2) Or Tie the AC secondaries of the Trafo's using just one bridge rectifier? 3) Or add an aftermarket Toroid (which may be a few volts higher or lower than stock) and will be mated to the stock supply? Any thoughts and reason for your conclusions will be welcome.

25th April 2004, 03:59 PM	#2
Jan Dupont diyAudio Member Join Date: Apr 2003 Location: Copenhagen, Denmark	Please inform us if the rail voltages are the same for both amp.... __________________ Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com

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25th April 2004, 04:13 PM	#3
K-amps diyAudio Member Join Date: Nov 2003 Location: Indiana	In situation 1 and 2 it is the same model amp (therefore same voltages more or less) for both amps. In the third option (I am think of using an after market Toroid/ third party Toroid I have lying around) , the voltages may be 5v more or 5v less than the stock I will "add" this to. thanks!

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