Path: ...!eternal-september.org!feeder3.eternal-september.org!usenet.blueworldhosting.com!diablo1.usenet.blueworldhosting.com!nnrp.usenet.blueworldhosting.com!.POSTED!not-for-mail
From: "Edward Rawde" <invalid@invalid.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Current mirror version of the lowish distortion 1kHz sine wave osillator
Date: Wed, 15 Jan 2025 13:16:51 -0500
Organization: BWH Usenet Archive (https://usenet.blueworldhosting.com)
Lines: 786
Message-ID: <vm8u2l$pns$1@nnrp.usenet.blueworldhosting.com>
References: <vm89vp$2ulja$1@dont-email.me>
Injection-Date: Wed, 15 Jan 2025 18:16:53 -0000 (UTC)
Injection-Info: nnrp.usenet.blueworldhosting.com;
	logging-data="26364"; mail-complaints-to="usenet@blueworldhosting.com"
Cancel-Lock: sha1:ha9U5yo8b79W1p6XhMSyNzkE7zA= sha256:Epd6g69Q5SkP/mopGC7LbSs6yWfYDAZeexp77yD3hTQ=
	sha1:/qsuTXCMhjcmO1t/oyzr7t6INGk= sha256:ppKOH9iGrPF7nfMRRF5EISProHtFGPu71UGqPXua0RE=
X-Priority: 3
X-RFC2646: Format=Flowed; Response
X-MSMail-Priority: Normal
X-Newsreader: Microsoft Outlook Express 6.00.2900.5931
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157
Bytes: 22748

"Bill Sloman" <bill.sloman@ieee.org> wrote in message news:vm89vp$2ulja$1@dont-email.me...
> This just reworks my circuit to use a controllable asymmetric current mirror instead of the FET for gain control. I take the 
> feedback from the full wave rectifier and switch every half-cycle to reconstruct a variable amplitude sine wave to control the 
> output amplitude. It does use a lot of components, but it strikes me as fairly comprehensible.
>

First I corrected the usual line wrap issues.

In the latest LTSpice (24.1.0) it took me a good hour or two to find out why I was getting strange netlist errors for all the opamps 
in the circuit.

This turned out to be .ENDS in the BAS70L model. Remove .ENDS and the issues go away.

So this is the circuit I'm simulating in 24.1.0 with no component updates available.
I'm expecting it to take 2 hours to complete.

Version 4.1
SHEET 1 3608 920
WIRE -1360 -2400 -1984 -2400
WIRE -1200 -2400 -1360 -2400
WIRE -1104 -2400 -1200 -2400
WIRE -736 -2400 -1104 -2400
WIRE -320 -2400 -736 -2400
WIRE 208 -2400 -320 -2400
WIRE 336 -2400 208 -2400
WIRE 576 -2400 336 -2400
WIRE -736 -2384 -736 -2400
WIRE 208 -2384 208 -2400
WIRE -320 -2368 -320 -2400
WIRE 3376 -2272 -1616 -2272
WIRE 880 -2192 -1776 -2192
WIRE -1360 -2160 -1360 -2400
WIRE -736 -2160 -736 -2320
WIRE -656 -2160 -736 -2160
WIRE -320 -2160 -320 -2304
WIRE -176 -2160 -320 -2160
WIRE 208 -2144 208 -2320
WIRE 336 -2144 208 -2144
WIRE -1200 -2112 -1200 -2400
WIRE -1360 -2048 -1360 -2080
WIRE -320 -2000 -320 -2160
WIRE -736 -1984 -736 -2160
WIRE -1776 -1968 -1776 -2192
WIRE 336 -1968 336 -2144
WIRE 576 -1968 576 -2400
WIRE -1360 -1920 -1360 -1968
WIRE -1200 -1920 -1200 -2032
WIRE 1952 -1920 1744 -1920
WIRE 2160 -1920 1952 -1920
WIRE -1616 -1904 -1616 -2272
WIRE 1376 -1904 1072 -1904
WIRE 1536 -1904 1376 -1904
WIRE 336 -1888 336 -1904
WIRE -1280 -1872 -1296 -1872
WIRE -1264 -1872 -1280 -1872
WIRE -576 -1872 -912 -1872
WIRE -32 -1872 -496 -1872
WIRE 1744 -1872 1744 -1920
WIRE 1072 -1856 1072 -1904
WIRE 1952 -1824 1904 -1824
WIRE 2160 -1824 2160 -1920
WIRE 2160 -1824 2032 -1824
WIRE -128 -1808 -272 -1808
WIRE -32 -1808 -32 -1872
WIRE -32 -1808 -64 -1808
WIRE -1776 -1792 -1776 -1888
WIRE -1776 -1792 -2064 -1792
WIRE -1280 -1792 -1280 -1872
WIRE -1200 -1792 -1200 -1824
WIRE -1200 -1792 -1280 -1792
WIRE -912 -1792 -912 -1872
WIRE -864 -1792 -912 -1792
WIRE -544 -1792 -784 -1792
WIRE -1200 -1776 -1200 -1792
WIRE 576 -1776 576 -1904
WIRE 768 -1776 576 -1776
WIRE 2160 -1776 2160 -1824
WIRE 2288 -1776 2160 -1776
WIRE 2432 -1776 2368 -1776
WIRE 2496 -1776 2432 -1776
WIRE 2800 -1776 2576 -1776
WIRE 2864 -1776 2800 -1776
WIRE 3088 -1776 2944 -1776
WIRE 1280 -1760 1232 -1760
WIRE 1536 -1760 1536 -1904
WIRE 1536 -1760 1360 -1760
WIRE -1776 -1728 -1776 -1792
WIRE -1360 -1728 -1360 -1824
WIRE -1360 -1728 -1520 -1728
WIRE -1264 -1728 -1360 -1728
WIRE -544 -1728 -544 -1792
WIRE 3088 -1728 3088 -1776
WIRE -1984 -1712 -1984 -2400
WIRE -272 -1712 -272 -1808
WIRE -128 -1712 -272 -1712
WIRE -32 -1712 -32 -1808
WIRE -32 -1712 -64 -1712
WIRE 2432 -1712 2432 -1776
WIRE -2064 -1696 -2064 -1792
WIRE -2016 -1696 -2064 -1696
WIRE -1840 -1680 -1952 -1680
WIRE -2016 -1664 -2064 -1664
WIRE 2064 -1648 1392 -1648
WIRE -912 -1632 -912 -1792
WIRE -848 -1632 -912 -1632
WIRE -544 -1632 -544 -1648
WIRE -544 -1632 -784 -1632
WIRE 2624 -1632 2624 -1648
WIRE -1200 -1616 -1200 -1680
WIRE -1200 -1616 -1360 -1616
WIRE -1072 -1616 -1200 -1616
WIRE -912 -1616 -912 -1632
WIRE -912 -1616 -992 -1616
WIRE -272 -1616 -272 -1712
WIRE -144 -1616 -272 -1616
WIRE -32 -1616 -32 -1712
WIRE -32 -1616 -64 -1616
WIRE 2064 -1616 2064 -1648
WIRE 1392 -1600 1392 -1648
WIRE 1904 -1600 1904 -1824
WIRE 2032 -1600 1904 -1600
WIRE -2064 -1584 -2064 -1664
WIRE -544 -1584 -544 -1632
WIRE -512 -1584 -544 -1584
WIRE -432 -1584 -448 -1584
WIRE -272 -1584 -272 -1616
WIRE -272 -1584 -352 -1584
WIRE 1232 -1584 1232 -1760
WIRE 1360 -1584 1232 -1584
WIRE 2160 -1584 2160 -1776
WIRE 2160 -1584 2096 -1584
WIRE 2432 -1584 2432 -1632
WIRE 1536 -1568 1536 -1760
WIRE 1536 -1568 1424 -1568
WIRE 1584 -1568 1536 -1568
WIRE 1744 -1568 1744 -1808
WIRE 1744 -1568 1664 -1568
WIRE 1792 -1568 1744 -1568
WIRE 2000 -1568 1872 -1568
WIRE 2032 -1568 2000 -1568
WIRE -176 -1552 -176 -2160
WIRE 880 -1552 880 -2192
WIRE 912 -1552 880 -1552
WIRE 1072 -1552 1072 -1792
WIRE 1072 -1552 992 -1552
WIRE 1120 -1552 1072 -1552
WIRE 1328 -1552 1200 -1552
WIRE 1360 -1552 1328 -1552
WIRE -272 -1536 -272 -1584
WIRE -208 -1536 -272 -1536
WIRE 2800 -1536 2800 -1776
WIRE 2848 -1536 2800 -1536
WIRE 3088 -1536 3088 -1664
WIRE 3088 -1536 2912 -1536
WIRE -32 -1520 -32 -1616
WIRE -32 -1520 -144 -1520
WIRE 16 -1520 -32 -1520
WIRE 64 -1520 16 -1520
WIRE 112 -1520 64 -1520
WIRE 432 -1520 192 -1520
WIRE -208 -1504 -288 -1504
WIRE -1264 -1488 -1664 -1488
WIRE -656 -1472 -656 -2160
WIRE -912 -1456 -912 -1616
WIRE -688 -1456 -912 -1456
WIRE -288 -1456 -288 -1504
WIRE 256 -1456 144 -1456
WIRE 368 -1456 336 -1456
WIRE 496 -1456 368 -1456
WIRE 1392 -1456 1392 -1536
WIRE 2064 -1456 2064 -1552
WIRE 2064 -1456 1392 -1456
WIRE 2432 -1456 2288 -1456
WIRE 2992 -1456 2432 -1456
WIRE 3264 -1456 2992 -1456
WIRE -544 -1440 -544 -1584
WIRE -544 -1440 -624 -1440
WIRE 1232 -1440 1232 -1584
WIRE 2288 -1440 2288 -1456
========== REMAINDER OF ARTICLE TRUNCATED ==========