LTSpice regulators - LM7812 and LM7912. - All About Circuits
Aug 11, 2024 · Does anyone have an LTSpice component model/symbol combo for the LM7812 and LM7912 regulators or know of an equivalent component that's already in the library? TIA
LTSPICE - How to specify capacitor initial condition - All About …
Feb 13, 2010 · How do I specify the initial charge voltage of C4 like that of C3? Right clicks on C3 & C4 both popup the same menu with options like capacitance values and Rser(ESR). On C3, …
LTspice - How to simulate switches closing at different time
Nov 16, 2020 · Hi guys! I need to model a RCL circuit with two switching that are closing at different time. How can I do it? I tried computing initial conditions but is very time consuming. …
LTSpice *.cir file - All About Circuits
Jun 10, 2014 · Start LTSpice, open the .cir file from the "file" menu, click anywhere in the file to be sure its active, then click the Run button (Running Man symbol). A plot screen should then …
Rotate component in LTspice? - All About Circuits
Apr 24, 2019 · What is the best way to rotate a component in LTSpice? The only way I know how to do it is to select it with the drag tool then use the rotate button on the command bar. But …
LTspice: Why Capacitor discharges? | Forum for Electronics
Jun 13, 2021 · Hi, The attached LTspice sim shows a series cap network getting charged up, and then for some reason the bottom cap discharges. Do you know why?
floating node warning in LTSpice | Forum for Electronics
Jul 10, 2025 · The floating node problem in LTSpice can be resolved by either adding or deleting (already existing) a small series resistor (R=0.001 ohm) to the return path of the secondary …
LTspice run slowly - All About Circuits
Mar 26, 2024 · Hi, I've been working with LTspice, and found that many times the simulation get very slow, in fact - not useable. Can anyone help with that? I've tried several solutions (see …
[SOLVED] - LTSpice simulation not completing | Forum for …
May 4, 2025 · Hi, I am running a LTSpice (v 24.1.7) transient simulation using TLV271 op-amp. I first ran a sim with a single op amp. The sim ran OK. When I ran the sim on my ckt, the …
LTspice: any way to copy & paste between circuits?
May 28, 2011 · I'd like to be able to copy parts of one circuit to another. Windoze copy/paste keystrokes (Ctrl-C/Ctrl-V) don't seem to work. No copy/paste commands in the Edit menu. Any …