Re: Simulation runs very slowly: test.asc
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Andy found that the Alternate Solver is a solution, although the simulation run is anything but lightning-fast. He posits that some form of very high frequency (numerical) oscillation is slowing things down. ?
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From: [email protected] <[email protected]> On Behalf Of eetech00 via groups.io
Sent: Monday, March 31, 2025 6:59 PM
To: [email protected]
Subject: Re: [LTspice] Simulation runs very slowly: test.asc? On Mon, Mar 31, 2025 at 02:14 PM, Christopher Paul wrote: eetech00, I¡¯m afraid I don¡¯t understand. ? From what I can see, each of the three diode strings is driven by a single current regulator. Maybe you could you describe your concerns using component reference designators? ?
You have three groups of circuits, but I'll refer to one group. The opamp and mosfet forms a basic Volt to current converter and its controlling current thru the diodes. The LM317 is also configured as a current regulator and it also (trying) control current thru the diodes. That's what I think is causing the simulation convergence problems.
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