200w Aleph-X equals Aleph 1.2

dantwomey · 12th November 2003, 08:54 PM

I started the following thread that really went nowhere:

Scaling Aleph-X up to 200w

What I did conclude though was that "for all intents and purposes" a 200w Aleph-X is the equivalent of an Aleph 1.2 for the purposes of power supplies and heatsinks. I don't see the need to complicate things more than that.

Comments anyone?

Regards,
Dan

Nelson Pass · 12th November 2003, 11:23 PM

It will generally have 1/2 the rail voltages, and twice the
current draw, otherwise the amount of hardware tends
to be about the same. The XA200 also has twice as much
capacitance, in an RCLC filter set.

And of course, a blue light on the meter.

dantwomey · 13th November 2003, 12:09 AM

Following Nelson's previous 'advice' I'm assuming that'll whether it's an Aleph 1.2 or a 200W Aleph-X. The beg, borrow, and or otherwise apply as much heatsink as you can find rule will apply!

The lower rail voltages may make it easier to find large doses of capacitance 'lying around'. I still have 28 of the 68,000uf Stubby's leftover from my Aleph 5 project. As soon as I complete my Aleph ala Kristijan's board and power supply design I'll see how the CLC works and go from there.

Regards,
Dan

P.S. Thanks for the input Nelson.

dantwomey · 13th November 2003, 01:01 AM

Following Nelson's previous 'advice' I'm assuming that'll whether it's an Aleph 1.2 or a 200W Aleph-X. The beg, borrow, and or otherwise apply as much heatsink as you can find rule will apply!

The lower rail voltages may make it easier to find large doses of capacitance 'lying around'. I still have 28 of the 68,000uf Stubby's leftover from my Aleph 5 project. As soon as I complete my Aleph ala Kristijan's board and power supply design I'll see how the CLC works and go from there.

Regards,
Dan

P.S. Thanks for the input Nelson.

Nelson Pass · 13th November 2003, 02:06 AM

You're welcome, Dan.

jrsun · 13th November 2003, 10:24 PM

Dan,

If 68,000uF caps are used in pi CLC filter, what values of
bypass capacitor and indcctor should be used for Alpeh 2 PSU ? still 4.7 uF and 2.2 mH ? Thanks !

Rus

dantwomey · 14th November 2003, 01:59 AM

I being a 'novice' will for the most part follow other people's designs (i.e. Krisitjan's) until I get alittle more experience under my belt. That's the best answer I can offer at this time.

Regards,
Dan

dantwomey · 14th November 2003, 02:05 AM

Back to the Aleph-X 200w for a second.... after alittle preliminary research I can see that 1.2-1.5kva 28v Plitron toroid would be expensive. Probably a custom job. Anyone care for a quote?

Regards,
Dan

jrsun · 14th November 2003, 02:45 AM

1.5kva is one of the standard model. voltage change does not counted as custom job as I know. Magnetic shelding might be expensive or n/a as told.

dantwomey · 14th November 2003, 09:52 PM

After finishing my Aleph 5 in the near future. I may be enticed into starting to prototype a 200W Aleph-X power supply. It looks like the 1500VA Plitron toroid will be about $200CAN/$155USD. I think I have enough surplus capacitance and heatsinks to mock up a single monoblock. Anyone interested this particular experiement?

Regards,
Dan

12th November 2003, 08:54 PM	#1
dantwomey diyAudio Member Join Date: Feb 2002 Location: Canada	200w Aleph-X equals Aleph 1.2 I started the following thread that really went nowhere: Scaling Aleph-X up to 200w What I did conclude though was that "for all intents and purposes" a 200w Aleph-X is the equivalent of an Aleph 1.2 for the purposes of power supplies and heatsinks. I don't see the need to complicate things more than that. Comments anyone? Regards, Dan

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12th November 2003, 11:23 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	It will generally have 1/2 the rail voltages, and twice the current draw, otherwise the amount of hardware tends to be about the same. The XA200 also has twice as much capacitance, in an RCLC filter set. And of course, a blue light on the meter.

13th November 2003, 12:09 AM	#3
dantwomey diyAudio Member Join Date: Feb 2002 Location: Canada	Following Nelson's previous 'advice' I'm assuming that'll whether it's an Aleph 1.2 or a 200W Aleph-X. The beg, borrow, and or otherwise apply as much heatsink as you can find rule will apply! The lower rail voltages may make it easier to find large doses of capacitance 'lying around'. I still have 28 of the 68,000uf Stubby's leftover from my Aleph 5 project. As soon as I complete my Aleph ala Kristijan's board and power supply design I'll see how the CLC works and go from there. Regards, Dan P.S. Thanks for the input Nelson.

13th November 2003, 01:01 AM	#4
dantwomey diyAudio Member Join Date: Feb 2002 Location: Canada	Following Nelson's previous 'advice' I'm assuming that'll whether it's an Aleph 1.2 or a 200W Aleph-X. The beg, borrow, and or otherwise apply as much heatsink as you can find rule will apply! The lower rail voltages may make it easier to find large doses of capacitance 'lying around'. I still have 28 of the 68,000uf Stubby's leftover from my Aleph 5 project. As soon as I complete my Aleph ala Kristijan's board and power supply design I'll see how the CLC works and go from there. Regards, Dan P.S. Thanks for the input Nelson.

13th November 2003, 02:06 AM	#5
Nelson Pass The one and only Join Date: Mar 2001	You're welcome, Dan.

13th November 2003, 10:24 PM	#6
jrsun diyAudio Member Join Date: Sep 2003 Location: North NJ	Dan, If 68,000uF caps are used in pi CLC filter, what values of bypass capacitor and indcctor should be used for Alpeh 2 PSU ? still 4.7 uF and 2.2 mH ? Thanks ! Rus

14th November 2003, 01:59 AM	#7
dantwomey diyAudio Member Join Date: Feb 2002 Location: Canada	I being a 'novice' will for the most part follow other people's designs (i.e. Krisitjan's) until I get alittle more experience under my belt. That's the best answer I can offer at this time. Regards, Dan

14th November 2003, 02:05 AM	#8
dantwomey diyAudio Member Join Date: Feb 2002 Location: Canada	Back to the Aleph-X 200w for a second.... after alittle preliminary research I can see that 1.2-1.5kva 28v Plitron toroid would be expensive. Probably a custom job. Anyone care for a quote? Regards, Dan

14th November 2003, 02:45 AM	#9
jrsun diyAudio Member Join Date: Sep 2003 Location: North NJ	1.5kva is one of the standard model. voltage change does not counted as custom job as I know. Magnetic shelding might be expensive or n/a as told.

14th November 2003, 09:52 PM	#10
dantwomey diyAudio Member Join Date: Feb 2002 Location: Canada	After finishing my Aleph 5 in the near future. I may be enticed into starting to prototype a 200W Aleph-X power supply. It looks like the 1500VA Plitron toroid will be about $200CAN/$155USD. I think I have enough surplus capacitance and heatsinks to mock up a single monoblock. Anyone interested this particular experiement? Regards, Dan