Re: Using Curve tracer
I have tested inductors on my 577. You can see the V vs. I hysterisis curve and the core saturation current.
Setup is quite easy. The inductor is placed between the collector and emitter inputs. Set a suitable series limiting resistor to start (a few hundred ohms) which you can experiment with and lower as you go. Set the (horizontal) collector sweep voltage low to start with and you can increase it as needed. The (vertical) current setting will be determined by how much inductance there is so experiment with it.
One note of caution: A SMPS works at comparitively high frequencies for power devices. The 577 tests at a low 60 or 120 Hz. So the results you get on the 577 will only guide you in the right direction. They will not be an indication of actual performance in the SMPS.
Have fun discovering the hidden versatility of a curve tracer.
From: TekScopes@... [mailto:TekScopes@...] On Behalf Of Pa4tim
Sent: Friday, December 10, 2010 11:01 PM
Subject: Re: [TekScopes] Re: Using Curve tracer
I am building some smps and have problems with the right inductor. I wanted to make an inductor tester but then I thought it must be possible to use my 577 fot that. i'm I right or is an inductive load not a good idea for the CT. If it is possible how do I connect and set the CT
Op 4 dec. 2010 om 20:49 heeft DaveC <davec2468@...> het volgende geschreven: