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.

Continuously Variable AC-DC Power Supply Design

Status
Not open for further replies.

kvaghela

Newbie level 3
Joined
Jun 18, 2011
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Anand, GJ-India
Activity points
1,302
Hi,

I need to design continuously variable (variation needs to be controlled digitally using micro-controller) power supply which can provide 1-20 V DC and AC @ 8-10A (shared between AC and DC out). I have some limitation on form-factor of design so I have very limited scope to use 1-20V seconday variac due to it's size.
Could anyone please suggest me what way I should go?

Thanks in advance!
-KV
 

leo_o2

Advanced Member level 4
Joined
Sep 3, 2004
Messages
1,324
Helped
277
Reputation
556
Reaction score
241
Trophy points
1,343
Location
China
Activity points
5,761
Specicially designed IC should be employed to do this.
 

kvaghela

Newbie level 3
Joined
Jun 18, 2011
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Anand, GJ-India
Activity points
1,302

leo_o2

Advanced Member level 4
Joined
Sep 3, 2004
Messages
1,324
Helped
277
Reputation
556
Reaction score
241
Trophy points
1,343
Location
China
Activity points
5,761
I means you possibly can't find a general-purpose IC for this now. Pls ask a IC company to customize one for you.
 

kvaghela

Newbie level 3
Joined
Jun 18, 2011
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Anand, GJ-India
Activity points
1,302
Thanks for the suggestion LEO, but that could be very expensive for me.
I have designed one PSU which has multiple tapping toroidal tranformer (230V primary/ 0,5 to 17V secondary @ 8A), can I use that transformer and SOMETHING to fine tune voltages in steps of 100mV? e.g I am using 5 and 6 V tapping to output 1V AC, 5 and 7 for 2VAC, and so on, now I need some mechanism to between 1V step to provide resolution of 100mV.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top