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Wirely 1.2.0

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@richiewillmott richiewillmott released this 24 Oct 21:02
· 13 commits to main since this release
v.1.2.0
e36732f

Wirely 1.2.0: real filament lamps.

Downloads

  • Windows (64-bit): Wirely-Setup-1.2.0.exe — run it; it updates an existing Wirely. If SmartScreen warns you (the installer isn't code-signed yet), click More info → Run anyway.
  • Mac (Apple Silicon): Wirely-1.2.0-mac-arm64.dmg — open it and drag Wirely into Applications, replacing the old one. The first time, right-click Wirely → Open → Open.
  • Linux (x86_64): Wirely-1.2.0-x86_64.AppImage — run chmod +x Wirely-1.2.0-x86_64.AppImage, then run it.

What's new

  • Filament lamps behave like real ones. The filament's resistance rises as it heats up, so a lamp's current–voltage graph curves over — just like the GCSE/A-level required practical (current goes as V^0.6, as real lamps measure). Hover over a lamp at different voltages and work out R = V ÷ I: it changes.
  • Switch-on surge: a cold filament has about a twelfth of its hot resistance, so a lamp takes a surge of about 11× its running current when switched on, then settles in a fraction of a second. Lamps brighten and fade over a moment instead of instantly, and lamps on reduced power look properly dim (two lamps in series are clearly dimmer than one).
  • Resistors ride out short surges: they now heat up over about a second before burning out, as real ones do, so a brief surge is fine but a lasting overload still burns them out.

243 automatic tests check Wirely against hand calculations, datasheets and ngspice.

Free and open source under the GNU GPL v3. Bug reports, ideas and part requests are welcome on the Issues tab.

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