4 November 2024

• 14:5714:57, 4 November 2024 diff hist −9 Elastance →Usage: hyperlink to capacitors in series which gives the equation, and shorten wording here a bit. current Tag: Visual edit

3 November 2024

• 18:0218:02, 3 November 2024 diff hist +227 Talk:FR-4 →What does "A" stand for in the table? current

2 November 2024

• 21:4421:44, 2 November 2024 diff hist +426 Talk:FR-4 →What does "A" stand for in the table?: new section Tag: New topic

1 November 2024

• 20:2420:24, 1 November 2024 diff hist −131 Body capacitance →Touch sensors: removed claim that required citation and was opinion anyway. Shorten this section, because there is a main article that goes into details. current Tag: Visual edit
• 19:4719:47, 1 November 2024 diff hist +139 Body capacitance move effects of spark out of intro, cause that is tangential to the topic of body capacitance and intro should just summarize anyway. Tag: Visual edit
• 15:5215:52, 1 November 2024 diff hist +49 Body capacitance →Tuned circuits: add hyperlink variable capacitor Tag: Visual edit
• 15:5015:50, 1 November 2024 diff hist +370 Body capacitance add some hyperlinks and some clarifications (e.g. breakdown voltages of mosfets can be even lower than 100 V), and some reordering Tag: Visual edit

31 October 2024

• 14:5314:53, 31 October 2024 diff hist +73 Capacitive displacement sensor →Basic capacitive theory: use epsilon and "relative permittivity" as done in the relative permittivity article, instead of the older word "dielectric constant". current Tag: Visual edit
• 05:1705:17, 31 October 2024 diff hist +2 Capacitive displacement sensor →Basic capacitive theory: use ≈ instead of = because air's constant isn't quite exactly 1. Tag: Visual edit
• 05:1305:13, 31 October 2024 diff hist −271 Capacitive displacement sensor →Basic capacitive theory: Capacitance is not "created by applying an electrical charge to two conductive objects with a gap between them", so deleting. (Readers can read the capacitor article if they want to know what capacitance is). Capacitance is also not capitalized. Shortening parallel plate description. Tag: Visual edit

17 October 2024

• 03:5703:57, 17 October 2024 diff hist +33 m Johnson–Nyquist noise →Thermometry: link to 2019 revision of the SI and include its year current Tag: Visual edit

16 October 2024

• 07:0207:02, 16 October 2024 diff hist +94 m Analog computer Minor hyperlnks. More than just Adders and multipliers...add log converters. current Tags: Visual edit Mobile edit Mobile web edit Advanced mobile edit
• 05:4905:49, 16 October 2024 diff hist 0 Log amplifier →True log amp: slight rewording Tag: Visual edit
• 05:4505:45, 16 October 2024 diff hist −79 Log amplifier →Temperature compensation: less strong claim to just be "it will be compensated" because this really depends on specifics of the circuit. Tag: Visual edit

15 October 2024

• 16:0616:06, 15 October 2024 diff hist −26 Roll-off →First-order roll-off: Give more digits to the 6 dB/octave approximation, so readers see how approximate it is. Deleting vague "within normal engineering required accuracy" because engineering accuracy is a relative term that depends on application and this one-third percent above 6 dB error may or may not be significant. Better to give the 20 dB/decade exact number rather than the approximate 6 dB/octave when have a choice. Tag: Visual edit
• 15:1515:15, 15 October 2024 diff hist +32 Log amplifier →Temperature compensation: add stat on the TI app note for its log conformity Tag: Visual edit
• 15:0115:01, 15 October 2024 diff hist +644 Log amplifier →Drawbacks: The Linear Technology citation was not exactly saying this and was talking about BJT-based converters, not the simple diode converter anyway. Moved that source instead to be a new Drawbacks section at the end of the Transdiode configuration and add some more points from that source, whose primary conclusion seems to be the claim that modern delta-sigma with digital calculation is superior. Add temperature proportional to kelvin too. Tag: Visual edit
• 14:3214:32, 15 October 2024 diff hist +20 Process variation (semiconductor) →Characterization: hyperlinked and removed unnecessary space and reformatted numbered list current Tag: Visual edit
• 14:1814:18, 15 October 2024 diff hist +209 Log amplifier →Drawbacks: add a temperature simulation I generated from LTSpice showing how much changes between 25C and 50C. Tag: Visual edit
• 02:5702:57, 15 October 2024 diff hist +135 Operational amplifier applications →Temperature-compensated compression: add a sentence on diode D1 current Tag: Visual edit
• 02:4502:45, 15 October 2024 diff hist +1 Operational amplifier applications →Temperature-compensated compression: move the temperature compensation transistors to be later. Tag: Visual edit
• 01:1201:12, 15 October 2024 diff hist −46 Operational amplifier applications →Temperature-compensated piecewise linear compression: renaming to avoid saying "linear compression" Tag: Visual edit
• 01:1101:11, 15 October 2024 diff hist +14 Operational amplifier applications →Piecewise linear output: renamed section to →Temperature-compensated piecewise linear compression: like caption Tag: Visual edit
• 01:0901:09, 15 October 2024 diff hist +3 Operational amplifier applications →Piecewise linear output: refer to this schematic by its caption Tag: Visual edit
• 01:0401:04, 15 October 2024 diff hist +83 Operational amplifier applications →Piecewise linear output: start with most general statements. Then separate the circuit shown with its own sub-sub-heading. Tag: Visual edit
• 01:0101:01, 15 October 2024 diff hist −23 Operational amplifier applications →Piecewise linear output: the source seems to be saying the diodes/transistor with resistor networks does compression, so rearrange sentences. Tag: Visual edit
• 00:5400:54, 15 October 2024 diff hist −8 Operational amplifier applications →Piecewise linear output: slight shorter rephrase Tag: Visual edit
• 00:5300:53, 15 October 2024 diff hist −1 Operational amplifier applications →Piecewise linear output: slight rewording Tag: Visual edit
• 00:5300:53, 15 October 2024 diff hist +266 Operational amplifier applications →Piecewise linear output: Clarify that this schematic is only for gain compression. Add sentence on how expansion may be done as inverse of compression. Tag: Visual edit
• 00:0900:09, 15 October 2024 diff hist +25 Operational amplifier applications →Piecewise linear output: Technical correction...Q2 and Q3 aren't technically "off" but rather they "produce very little base current" Tag: Visual edit
• 00:0200:02, 15 October 2024 diff hist +22 Operational amplifier applications →Piecewise linear output: little more clarity on the lines segment selection Tag: Visual edit

14 October 2024

• 23:5923:59, 14 October 2024 diff hist −6 Operational amplifier applications →Piecewise linear output: minor correction. Tag: Visual edit
• 23:5623:56, 14 October 2024 diff hist +2,111 Operational amplifier applications →Non-linear: added temperature-compensated piecewise linear output section, described by Texas Instruments and National Semiconductor application notes. Tag: Visual edit
• 03:5203:52, 14 October 2024 diff hist −9 Precision rectifier didn't introduce "super diode" word yet, so adding it as another name instead. Tag: Visual edit
• 03:4703:47, 14 October 2024 diff hist −75 m Precision rectifier →Basic circuit: define "opamp" abbreviation and use it. Tag: Visual edit
• 03:3503:35, 14 October 2024 diff hist +200 Precision rectifier →Basic circuit: "there is a negative voltage on the diode" was vague. Not quite that "no current flows through the load" but rather that RL pulls Vout down to ground...that pulling down process itself is a flow of current through RL. Add just a bit more specific on how the negative feedback works "just enough current will flow through"... Tag: Visual edit

13 October 2024

• 12:0312:03, 13 October 2024 diff hist +8 m White noise couple minor hyperlinks current Tag: Visual edit

12 October 2024

• 15:5515:55, 12 October 2024 diff hist 0 Diode logic →See also: remove unnecessary underscore Tag: Visual edit

11 October 2024

• 19:3819:38, 11 October 2024 diff hist +28 Log amplifier →Drawbacks: say this is another "architecture" Tag: Visual edit
• 19:3119:31, 11 October 2024 diff hist +83 Log amplifier →Basic opamp diode circuit: point to "True log amp" section...these are different implementations of a similar function. Tag: Visual edit
• 19:2519:25, 11 October 2024 diff hist +14 Log amplifier maybe not use bold for these different spellings of each term. If there are 3 different ways to spell the first word, and 3 different ways to spell the second word, than that is 9 different spellings...and that isn't even getting into prepending it with "true" or "baseband". Tag: Visual edit
• 19:1919:19, 11 October 2024 diff hist −22 Log amplifier to address all permutations of spellings, just say how log can be respelled and how can be called a "converter" too. Tag: Visual edit
• 19:1519:15, 11 October 2024 diff hist +36 Log amplifier →Drawbacks: rearranged slightly on arcsinh. Tag: Visual edit
• 19:1219:12, 11 October 2024 diff hist 0 Log amplifier →Drawbacks: call these inputs Tag: Visual edit
• 19:1219:12, 11 October 2024 diff hist +16 Log amplifier →Drawbacks: opps...again got this math wrong. Tag: Visual edit
• 19:1119:11, 11 October 2024 diff hist +24 Log amplifier →Drawbacks: slight correction on math Tag: Visual edit
• 19:0819:08, 11 October 2024 diff hist +830 Log amplifier →Drawbacks: add about how to deal with inputs around the size of Vt or smaller. Tag: Visual edit
• 18:4018:40, 11 October 2024 diff hist +224 Log amplifier logarithmic converter is another spelling. Add about negative domain maybe mirroring positive output. Really just some range of the input, cause non-logarithmic things often happen near zero and there is always the question about negative inputs. Tag: Visual edit
• 18:3118:31, 11 October 2024 diff hist +114 Log amplifier add other spellings of exponentiator. Tag: Visual edit
• 18:2018:20, 11 October 2024 diff hist +27 N Logarithmic amp redirect to Log amplifier current Tags: New redirect Uncategorized redirect