Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics 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.

Testing to proove an SMPS over temperature

Status
Not open for further replies.

eem2am

Banned
Advanced Member level 4
Joined
Jun 22, 2008
Messages
1,179
Helped
37
Reputation
74
Reaction score
24
Trophy points
1,318
Activity points
0
Hello,

We have designed an offline SMPS.

Output is 50V and 4 Amps Max (200Watts)
Input is 85VAC to 265VAC

It is a boost PFC followed by a Buck.
--------------------------------------------
I want to test it at various temperatures from -10C to 80C.
---------------------------------------------
Muct i test it at lots of different load levels?
eg ...
20% load
40% load
60% load
80% load
100% load
....at each different temperature?

...at lots of different input voltage levels?
-----------------------------------
or can i just check it on................

Minimum Line (85VAC) , Max Load at each temperature &
Minimum Line (85VAC) , Load switching from 0% to 100% at ~1 Hertz

Maximum Line (265VAC), Max load at each temperature &
Maximum Line (265VAC), Load switching from 0% to 100% at ~1 Hertz
---------------------------------------
I had thought that the worst case for the feedback loop was minimum line and maximum load ?

...and basically if you have checked that there is no need to check at intermediate loads and lines (though of course max line must be checked)
---------------------------------------------
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top