Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

I know nothing about Switch mode supplies...thus I need help

Status
Not open for further replies.

JabaThaSlut

Junior Member level 1
Joined
Apr 16, 2001
Messages
17
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
285
Hi oh helpfull ones.........

Can someone tell me if it is possible to modify an existing Switch mode supplys output. (eg current output = 12v, required output = 15v)

How is this done?....Yep I'm a switchmode dumbo, so any help would be very much appreciated.....that is after you have got through laughing at my obvious lacking in knowledge. Lets just say I'm old....thus lazy :lol:

Cheers

Jaba
 

shanren

Advanced Member level 4
Joined
Oct 12, 2001
Messages
102
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Activity points
1,079
hi,we need to know the current.in some topology you can do so,but can not in some other topology.just tell us what you need accurately ,so we can help you.
 

JabaThaSlut

Junior Member level 1
Joined
Apr 16, 2001
Messages
17
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
285
Ok..my initial question was a bit vague. A bit hard to be more definative in my required info, thus the question is for "generic" type info on the subject. I have collected quite a few different Switchmode supplies over the years, most are just sitting doing nothing so I thought it would be good to put them to use in a few of my projects.

As an example, I am currently building a "true" analogue music synth but my design is based around the old Curtis chipsets and requires +5, +15 and -15 Vdc. I have a couple of PC switchmodes I could use if I can alter the +12, -12 outputs to suit my need. The current requirement of the total synth is around 1 - 1.5 amps, thus a PC supply may be well suited. My only requirement other than that is that the supply voltage MUST be very stable and clean.

I hope this adds a little to my original request.

Cheers

Jaba
 

JabaThaSlut

Junior Member level 1
Joined
Apr 16, 2001
Messages
17
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
285
Ok..my initial question was a bit vague. A bit hard to be more definative in my required info, thus the question is for "generic" type info on the subject. I have collected quite a few different Switchmode supplies over the years, most are just sitting doing nothing so I thought it would be good to put them to use in a few of my projects.

As an example, I am currently building a "true" analogue music synth but my design is based around the old Curtis chipsets and requires +5, +15 and -15 Vdc. I have a couple of PC switchmodes I could use if I can alter the +12, -12 outputs to suit my need. The current requirement of the total synth is around 1 - 1.5 amps, thus a PC supply may be well suited. My only requirement other than that is that the supply voltage MUST be very stable and clean.

I hope this adds a little to my original request.

Cheers

Jaba
 

probert

Member level 2
Joined
Jun 4, 2002
Messages
45
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Location
Hungary
Activity points
280
Hi,
There can be find various switch-mode controllers in switch-mode power supplies, so it would be better to get more information about those You have, but I think in a conventinal PC powersupply the different outputs are obtained from the same transformer, so you can't change voltage levels individually.
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top