Doepfer

hi there folks.

this may be a dieter only query, but i'll address it to the group in 
case there are any suggestions.

i was immediately interested in the a100 "beauty case" when i saw it 
posted on the doepfer webpage.  however i have a question about the 
power supply.  i've noticed previously the "mini-bus board power 
supply" in the doepfer website, and i have to assume this is intended 
to fit into the forthcoming "beauty case".  i also noticed that this 
provides only 100mA current.  many module combos that will fit into 
the beauty case will exceed 100mA.  for instance, an ext input/env 
module, plus 2 normal 8hp filters, plus a dual VCA module will equal 
110mA (30mA x 3 =90mA + additional 20mA for the dual vca = 110mA).

i currently have a 36hp plastic case left over from a analogue 
solutions "mini modular" i had years ago.  the power supply, 
unfortunately, is long gone.  however, this could be my 
perfect "beauty case".  but i need a power supply that could feed 
different combos of 36HP modules.  ideally 200mA would cover every 
possible module combo, i think.

do you, dieter, or anyone else have an suggestions, such a bipolar 
power supply kits and such that would work.  my brief google searches 
didn't really pin down any particular kits.  obviously something very 
bulky would not work in a small case.  i think i would be willing to 
buy a regular doepfer bus board and cut it down to have 6 or so male 
ribbon connectors.

if you tell me that the proposed "beauty case" will accomodate above 
100mA i'd be willing to wait it out until you put it on the market.

thanks for info-
tom

I believe a new miniature power supply and bus board is coming out,
for use with DIY projects...I'm waiting for it myself.

>
> hi there folks.
> 
> this may be a dieter only query, but i'll address it to the group in 
> case there are any suggestions.
> 
> i was immediately interested in the a100 "beauty case" when i saw it 
> posted on the doepfer webpage.  however i have a question about the 
> power supply.  i've noticed previously the "mini-bus board power 
> supply" in the doepfer website, and i have to assume this is intended 
> to fit into the forthcoming "beauty case".  i also noticed that this 
> provides only 100mA current.  many module combos that will fit into 
> the beauty case will exceed 100mA.  for instance, an ext input/env 
> module, plus 2 normal 8hp filters, plus a dual VCA module will equal 
> 110mA (30mA x 3 =90mA + additional 20mA for the dual vca = 110mA).
> 
> i currently have a 36hp plastic case left over from a analogue 
> solutions "mini modular" i had years ago.  the power supply, 
> unfortunately, is long gone.  however, this could be my 
> perfect "beauty case".  but i need a power supply that could feed 
> different combos of 36HP modules.  ideally 200mA would cover every 
> possible module combo, i think.
> 
> do you, dieter, or anyone else have an suggestions, such a bipolar 
> power supply kits and such that would work.  my brief google searches 
> didn't really pin down any particular kits.  obviously something very 
> bulky would not work in a small case.  i think i would be willing to 
> buy a regular doepfer bus board and cut it down to have 6 or so male 
> ribbon connectors.
> 
> if you tell me that the proposed "beauty case" will accomodate above 
> 100mA i'd be willing to wait it out until you put it on the market.
> 
> thanks for info-
> tom
>

Hello Thomas,
If DIY is fine for you, Tom (Analogue Sol.) offers what you need in
the bay:
http://search.ebay.de/_W0QQsassZhazchem88QQhtZ-1

As stated in a previous post Doepfer has announced a DIY Kit 2. See
D.'s HP -> News

--- In Doepfer_a100@yahoogroups.com, "thomasborax" <thomasborax@...>
wrote:

>
> hi there folks.
> 
> this may be a dieter only query, but i'll address it to the group in 
> case there are any suggestions.
> 
> i was immediately interested in the a100 "beauty case" when i saw it 
> posted on the doepfer webpage.  however i have a question about the 
> power supply.  i've noticed previously the "mini-bus board power 
> supply" in the doepfer website, and i have to assume this is intended 
> to fit into the forthcoming "beauty case".  i also noticed that this 
> provides only 100mA current.  many module combos that will fit into 
> the beauty case will exceed 100mA.  for instance, an ext input/env 
> module, plus 2 normal 8hp filters, plus a dual VCA module will equal 
> 110mA (30mA x 3 =90mA + additional 20mA for the dual vca = 110mA).
> 
> i currently have a 36hp plastic case left over from a analogue 
> solutions "mini modular" i had years ago.  the power supply, 
> unfortunately, is long gone.  however, this could be my 
> perfect "beauty case".  but i need a power supply that could feed 
> different combos of 36HP modules.  ideally 200mA would cover every 
> possible module combo, i think.
> 
> do you, dieter, or anyone else have an suggestions, such a bipolar 
> power supply kits and such that would work.  my brief google searches 
> didn't really pin down any particular kits.  obviously something very 
> bulky would not work in a small case.  i think i would be willing to 
> buy a regular doepfer bus board and cut it down to have 6 or so male 
> ribbon connectors.
> 
> if you tell me that the proposed "beauty case" will accomodate above 
> 100mA i'd be willing to wait it out until you put it on the market.
> 
> thanks for info-
> tom
>

> hi there folks.
>
> this may be a dieter only query, but i'll address it to the group in
> case there are any suggestions.
>
> i was immediately interested in the a100 "beauty case" when i saw it
> posted on the doepfer webpage. however i have a question about the
> power supply. i've noticed previously the "mini-bus board power
> supply" in the doepfer website, and i have to assume this is intended
> to fit into the forthcoming "beauty case". i also noticed that this
> provides only 100mA current. many module combos that will fit into
> the beauty case will exceed 100mA. for instance, an ext input/env
> module, plus 2 normal 8hp filters, plus a dual VCA module will equal
> 110mA (30mA x 3 =90mA + additional 20mA for the dual vca = 110mA).
>
> i currently have a 36hp plastic case left over from a analogue
> solutions "mini modular" i had years ago. the power supply,
> unfortunately, is long gone. however, this could be my
> perfect "beauty case". but i need a power supply that could feed
> different combos of 36HP modules. ideally 200mA would cover every
> possible module combo, i think.
>
> do you, dieter, or anyone else have an suggestions, such a bipolar
> power supply kits and such that would work. my brief google searches
> didn't really pin down any particular kits. obviously something very
> bulky would not work in a small case. i think i would be willing to
> buy a regular doepfer bus board and cut it down to have 6 or so male
> ribbon connectors.
>
> if you tell me that the proposed "beauty case" will accomodate above
> 100mA i'd be willing to wait it out until you put it on the market.
>
> thanks for info-
> tom

The 100mA spec of the A-100 miniature power supply is very precautious and
has primarily to with the max. temperature of the voltage regulators.
Actually the voltage regulators (standard 7812/7912 types) can be used up to
1000mA provided that the temperature does not exceed 70 degrees Celsius. For
this heat sinks have to be used to keep the temperature below this value.
Even the environment has an influence as the air flow around the heat sinks
affects the temperature (e.g. in a small enclosure the heat sinks will heat
up more than in a large enclosure).

At the moment we are about to find out if the miniature power supply is
sufficient for a typical combination of modules in the "beauty case" with
max. 200 mA. As mentioned it's not an electrical but a temperature problem.
We will run a typical combination of modules (incl. 2xA-110 with 70mA each)
for several days and measure the temperature of the heat sinks inside the
"beauty case" now and then. In the worst case we will simply have to use
larger heat sinks to obtain the 200 mA.

Normally the 4 bus connectors of the miniature power supply will be
sufficient for modules mounted to the "beauty case". If actually more than 4
modules have to be installed there is a simple solution: a "double bus
cable" with one bus connector and two module connectors. In this way two
modules can be connected to one bus connector only.

I hope the beauty cases will be available soon. Our case manufacturer is
very busy at the moment. This is why the cases are not yet available (we
expected to have them available end of January).

Best wishes
Dieter Doepfer

hi everyone-
thanks for the replies.  i think if the current available in the 
beauty case can accomodate an a110 plus a few other modules etc, then 
that would work fine.  i'm very pleased by the thought of having a 
little station to swap out mini-patches for live use.

additionally, the DIY power supply is a good option for my 
intentions.  the heat sink is rather large, but it may fit into my 
plastic 36hp case, and i would need to cut down a bus board- not a 
problem.

when will the DIY power supplies be available?  i look forward to 
hearing the results of your tests with the beauty case power supply.

-tom

--- In Doepfer_a100@yahoogroups.com, <hardware@...> wrote:

> 
> The 100mA spec of the A-100 miniature power supply is very 
precautious and
> has primarily to with the max. temperature of the voltage 
regulators.
> Actually the voltage regulators (standard 7812/7912 types) can be 
used up to
> 1000mA provided that the temperature does not exceed 70 degrees 
Celsius. For
> this heat sinks have to be used to keep the temperature below this 
value.
> Even the environment has an influence as the air flow around the 
heat sinks
> affects the temperature (e.g. in a small enclosure the heat sinks 
will heat
> up more than in a large enclosure).
> 
> At the moment we are about to find out if the miniature power 
supply is
> sufficient for a typical combination of modules in the "beauty 
case" with
> max. 200 mA. As mentioned it's not an electrical but a temperature 
problem.
> We will run a typical combination of modules (incl. 2xA-110 with 
70mA each)
> for several days and measure the temperature of the heat sinks 
inside the
> "beauty case" now and then. In the worst case we will simply have 
to use
> larger heat sinks to obtain the 200 mA.
> 
> Normally the 4 bus connectors of the miniature power supply will be
> sufficient for modules mounted to the "beauty case". If actually 
more than 4
> modules have to be installed there is a simple solution: a "double 
bus
> cable" with one bus connector and two module connectors. In this 
way two
> modules can be connected to one bus connector only.
> 
> I hope the beauty cases will be available soon. Our case 
manufacturer is
> very busy at the moment. This is why the cases are not yet 
available (we

> expected to have them available end of January).
> 
> Best wishes
> Dieter Doepfer
>

> hi everyone-
> thanks for the replies. i think if the current available in the
> beauty case can accomodate an a110 plus a few other modules etc, then
> that would work fine. i'm very pleased by the thought of having a
> little station to swap out mini-patches for live use.
>
> additionally, the DIY power supply is a good option for my
> intentions. the heat sink is rather large, but it may fit into my
> plastic 36hp case, and i would need to cut down a bus board- not a
> problem.
>
> when will the DIY power supplies be available? i look forward to
> hearing the results of your tests with the beauty case power supply.
>
> -tom

Tom,

I have good news for you. We have a module arrangement with 220 mA current
consumption connected to the A-100 miniature power supply/bus (with larger
heat sinks) for two days and the temperature of the heat sinks is much less
than 70 degrees. The modules are built into a "beauty case". From the next
production series the A-100 miniature power supply/bus will be manufactured
with the new heat sinks to obtain 200mA max. current (to be on the safe side
we will guarantee only 200mA, even if probably 250 mA would work as well).
For existing A-100 miniature power supplies the heat sinks can be replaced
very easily.

We expect the first batch of the DIY power supply #1 early in March. The low
cost version with two 12V wall outlet power supplies will be available about
one month later.

Best wishes
Dieter Doepfer

dieter, thanks for the research.  i think i'll look into buying the 
mini-power supply and swapping out the heat sinks.  

-tom

--- In Doepfer_a100@yahoogroups.com, <hardware@...> wrote:
>

> Tom,
> 
> I have good news for you. We have a module arrangement with 220 mA 
current
> consumption connected to the A-100 miniature power supply/bus (with 
larger
> heat sinks) for two days and the temperature of the heat sinks is 
much less
> than 70 degrees. The modules are built into a "beauty case". From 
the next
> production series the A-100 miniature power supply/bus will be 
manufactured
> with the new heat sinks to obtain 200mA max. current (to be on the 
safe side
> we will guarantee only 200mA, even if probably 250 mA would work as 
well).
> For existing A-100 miniature power supplies the heat sinks can be 
replaced
> very easily.
> 
> We expect the first batch of the DIY power supply #1 early in 
March. The low
> cost version with two 12V wall outlet power supplies will be 
available about

> one month later.
> 
> Best wishes
> Dieter Doepfer
>

> dieter, thanks for the research. i think i'll look into buying the
> mini-power supply and swapping out the heat sinks.
>
> -tom

Tom,

the next series of the A-100 miniature power supply/bus will be already
equipped with the new heat sinks. We expect the new series about middle of
March 2007. If you can wait until that no heat sink swapping will be
necessary.

Best wishes
Dieter Doepfer