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Power Supply Needed
I have +5V/1A available (wall wart).
I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? Or is there some simple LT part I can use? ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. |
Power Supply Needed
"Jim Thompson" wrote in
message ... I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? I'm assuming you don't need DC isolation here. As such, how about http://www.eta-usa.com/pdffiles/dcdc/oej-sc-wc0512.pdf (OEJ24SC0512 in particular)? Mouser.Com has them for $20 -- as well as numerous variations on the theme, of course. ---Joel |
Power Supply Needed
On 26/03/2011 9:19 AM, Jim Thompson wrote:
I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? Or is there some simple LT part I can use? ...Jim Thompson This is a bit left field and assumes you have time to wait for delivery http://www.dealextreme.com/p/90w-dig...wer-port-11937 with an appropriate value 5 - 10 watt resistor they also make a good emergency battery charger. |
Power Supply Needed
On 26/03/2011 9:19 AM, Jim Thompson wrote:
I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? Or is there some simple LT part I can use? ...Jim Thompson This would be close for an LT part to use LT1308A/LT1308B |
Power Supply Needed
On Fri, 25 Mar 2011 16:38:04 -0700, "Joel Koltner"
wrote: "Jim Thompson" wrote in message ... I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? I'm assuming you don't need DC isolation here. As such, how about http://www.eta-usa.com/pdffiles/dcdc/oej-sc-wc0512.pdf (OEJ24SC0512 in particular)? Mouser.Com has them for $20 -- as well as numerous variations on the theme, of course. ---Joel Looks perfect! But I'm puzzled over your saying no DC isolation and the Mouser listing saying 500V "isolation". Not that I care. The data sheet is vague. ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Remember: Once you go over the hill, you pick up speed |
Power Supply Needed
hi, how about ? : MC34063A
http://www.nomad.ee/micros/mc34063a/index.shtml mark "Jim Thompson" wrote in message ... I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? Or is there some simple LT part I can use? ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. |
Power Supply Needed
Jim Thompson
wrote: I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? DC-DC converter? Should cost a few dollars. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico@nctdevpuntnl (punt=.) -------------------------------------------------------------- |
Power Supply Needed
On Sat, 26 Mar 2011 18:42:34 +0930, "no one"
wrote: hi, how about ? : MC34063A http://www.nomad.ee/micros/mc34063a/index.shtml mark Cute! "Jim Thompson" wrote in message ... I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? Or is there some simple LT part I can use? ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Remember: Once you go over the hill, you pick up speed |
Power Supply Needed
Nico Coesel wrote:
Jim Thompson I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? DC-DC converter? Should cost a few dollars. I wonder if he means he wants the desired voltage to be adjustable; if it's just a range in the spec, I'd say just buy a 20 or 24 volt wallwart. Cheers! Rich |
Power Supply Needed
On Sat, 26 Mar 2011 09:24:01 -0700, Jim Thompson
wrote: On Sat, 26 Mar 2011 12:02:07 GMT, (Nico Coesel) wrote: Jim Thompson wrote: I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? DC-DC converter? Should cost a few dollars. I ordered the OEJ24SC0512 that Joel recommended... $17.50 Some day, when I'm not in a rush, I'll do it with the MC34063 that Mark recommended. ...Jim Thompson Anyone know of a true data sheet or app note for the OEJ24SC0512? All I can locate is a tabular listing of I/O "specs". ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Remember: Once you go over the hill, you pick up speed |
Power Supply Needed
Jim Thompson wrote:
On Sat, 26 Mar 2011 09:24:01 -0700, Jim Thompson wrote: On Sat, 26 Mar 2011 12:02:07 GMT, (Nico Coesel) wrote: Jim Thompson wrote: I have +5V/1A available (wall wart). I need +20V to +24V at 60mA. Is there something I can buy off-the-shelf at not too outrageous an expense? DC-DC converter? Should cost a few dollars. I ordered the OEJ24SC0512 that Joel recommended... $17.50 Some day, when I'm not in a rush, I'll do it with the MC34063 that Mark recommended. ...Jim Thompson Anyone know of a true data sheet or app note for the OEJ24SC0512? All I can locate is a tabular listing of I/O "specs". ...Jim Thompson THis? http://datasheet.octopart.com/OEJ24S...heet-11079.pdf That isn't enough? jamie |
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