Yes. I've got 3 different linear tech devices on my list. The LM3478 actually
has an LTSpice model and the Wurth flex transformer I'm using does too (from TI
and Wurth respectively). The circuit I put together simulates just fine, so I'm
just trying to increase my level of confidence in it at this point (plus I
don't like not being able to do something!). What I haven't done is simulate it
with a varying load, yet (although, lets face it, the load isn't going to vary
much over a short timescale). I also need to check the current going through
the transformer against the specs.
> On Aug 10, 2017, at 7:01 PM, gregebert <gregeb...@hotmail.com> wrote:
> Have you considered using devices from Linear Technology (now Analog Devices)
> ? You can run extensive simulations with LTSpice, using accurate models for
> their ICs (I assume they are encrypted spice models).
> I dont do bode plots for any of my designs; instead I rely heavily on spice
> simulations and run a lot of corner cases, varying component values, etc. As
> your design improves, you will see that overall behavior is not sensitive to
> component values. For example, I'm working on a DCDC converter and I had
> horrible ringing; changing a capacitor value 2X had a major impact on the
> ringing. After some other fiddling, even a 10X change in capacitance no
> longer increases the ringing appreciably.
> One thing to really watch-out for is inductor current; make sure you stay
> well-clear of the saturation current (Isat) spec for the device. If you are
> using a transformer (coupled inductors) , make sure your circuit works nicely
> with non-ideal conditions such as finite DC resistance (usually in the
> datasheet), and non-ideal coupling (K < 1). All kinds of bugs come crawling
> out of the woods; much easier to deal with them with a simulator than a real
> circuit on your workbench.
> You received this message because you are subscribed to a topic in the Google
> Groups "neonixie-l" group.
> To unsubscribe from this topic, visit
> To unsubscribe from this group and all its topics, send an email to
> To post to this group, send email to email@example.com.
> To view this discussion on the web, visit
> For more options, visit https://groups.google.com/d/optout.
You received this message because you are subscribed to the Google Groups
To unsubscribe from this group and stop receiving emails from it, send an email
To post to this group, send an email to firstname.lastname@example.org.
To view this discussion on the web, visit
For more options, visit https://groups.google.com/d/optout.