25 سبتمبر 2026

حُدّث محرك الحساب إلى 1.18.3. تُعاد النتائج المحفوظة وتُعلَّم أي تغييرات عند فتحها.

• Charts on Logic Power, Trace Width, Junction Temperature and Trace Inductance match the answers beside them.
• Units read plainly: Ω/sq, ppm/°C, °C/mV, dB/in, and ratios as 5.3:1.
• A Board profile button on every calculator it fills, and a Fab profile button where fab limits apply.
• Shorter labels, with the detail behind a ? beside each field.
• Parameter sweep: every step is drawn and named as in its table, on linear and log axes.
• Worst-case corners: sampled parts stay inside their tolerance.

24 سبتمبر 2026

حُدّث محرك الحساب إلى 1.18.1. تُعاد النتائج المحفوظة وتُعلَّم أي تغييرات عند فتحها.

• Three calculators: Transient Thermal Impedance, PDN Target Impedance, and AC Resistance, Skin Effect & Trace Loss.
• Every calculator judges its headline answer against a stated limit, or says why no verdict applies.
• Saved work that the current engine answers differently is marked Answer changed in Your work, with a link to what changed.
• Recent can be cleared, or switched off, in Your work.
• The About page counts calculators the same way as the rest of the site.

20 سبتمبر 2026

• Plans. The calculators, verdicts and equations stay free for ever, with no account. Pro adds version history, parameter sweeps, worst-case corners, compare, full exports and unlimited signed reports, and every new account gets 14 days of Pro with no card.
• Parameter sweep: vary one input over a range and see the answer and verdict at every step, as a table and a curve, with CSV export.
• Compare two saved calculations side by side, with every difference marked.
• Version history: every edit to a saved calculation is kept.
• Pro features show a preview with a small Pro mark, never inside a result. If a plan ends, nothing is deleted or locked.

19 سبتمبر 2026

• Save without an account: Ctrl-S keeps the calculation on this device, offline too, with a title, project and notes. Sign in later and it joins your account.
• Continue with these values: links under the results carry your numbers into the next calculator.
• Board profile: enter copper weight, thickness, dielectric, ambient and junction limit once, in Your work, and every calculator that asks for them fills them in.
• Recent, at the top of the calculator list: your last computations, each a link that reproduces it.
• Your work shows how much of your plan is used, filters by tag, and offers undo when you delete.

8 سبتمبر 2026

حُدّث محرك الحساب إلى 1.8.1. تُعاد النتائج المحفوظة وتُعلَّم أي تغييرات عند فتحها.

• Show working under the answer on the ten most-used calculators: the equation with your numbers in it.
• The headline answer stays in view until the result scrolls into view, at every width.
• An empty number field shows the shorthand it accepts, such as 4k7, 100n and 3V3.
• 3V3 reads as 3.3 V, just as 4k7 reads as 4.7 kΩ.
• A comma reads as a decimal point: 2,5 is 2.5 and 4,7k is 4.7 kΩ. Grouped thousands still work, as in 1,000.5, and an ambiguous value is flagged rather than guessed.
• Areas and volumes print in a clear unit, such as 25500 µm² or 0.5 mm³.
• Every calculator marks one headline answer, with the values that drive the next decision beside it.

7 سبتمبر 2026

حُدّث محرك الحساب إلى 1.7.0. تُعاد النتائج المحفوظة وتُعلَّم أي تغييرات عند فتحها.

• Wire Gauge & Voltage Drop: the AWG a run needs for its current and drop, or what a chosen gauge does.
• Crystal Load Capacitance: the C1 = C2 pair for a crystal’s C_L, and the ppm error of the pair you have.
• Via Stub & Back-drill: the stub’s quarter-wave resonance against your data rate, and the longest stub that stays clear of it.
• Trace Inductance & di/dt: partial and loop inductance of a trace, and the voltage a current step produces.
• Via & Pad Geometry: annular ring after drill registration, aspect ratio and clearance against your fab’s capability, and the smallest pad that passes.
• Copy results on every calculator: inputs, answers, verdicts and the link, ready for design notes and reviews.
• Saved calculations can be pinned to the top of your work and carry a note.
• On a phone the headline answer stays in view while you edit inputs, and a calculator page prints as a clean document.
• Numbers in preset chips and option lists read correctly on Arabic pages.

19 أغسطس 2026

حُدّث محرك الحساب إلى 1.5.0. تُعاد النتائج المحفوظة وتُعلَّم أي تغييرات عند فتحها.

• The impedance calculator also solves in reverse: give a target impedance and it finds the trace width, for every line type.
• Fabrication tolerances on w, h and ε_r give worst-case minimum and maximum impedance.
• The cross-section has its own panel, and delay is behind a toggle.
• Chart cursors read plain numbers, such as 0.20 mm, and move in finer steps.

18 أغسطس 2026

حُدّث محرك الحساب إلى 1.4.0. تُعاد النتائج المحفوظة وتُعلَّم أي تغييرات عند فتحها.

• The impedance calculator covers six line types: surface and embedded microstrip, symmetric stripline, edge-coupled differential microstrip and stripline, and grounded coplanar waveguide.
• It now uses the Hammerstad-Jensen and Cohn/Wadell models. Saved impedance numbers shift by a few percent, and the page explains the change when you open them.

16 أغسطس 2026

حُدّث محرك الحساب إلى 1.3.0. تُعاد النتائج المحفوظة وتُعلَّم أي تغييرات عند فتحها.

• The Voltage Divider takes its tolerance from the series you pick, for example ±1 % for E96.
• Report a problem, in the footer of every page, with no account needed.
• The consulting page has a form: pick what you need and describe the work.
• A Most popular shelf at the top of the calculator index.
• Saved calculations show their inputs, stored answer and verdict in the list.

12 أغسطس 2026

• Charts draw as soon as the page opens.
• The MOSFET loss split is a chart, so the three losses compare at a glance.
• An account menu in the header: your projects, saved work and sign-out.
• Less text on every calculator. The equations stay in view, and the longer discussion is behind More detail.
• A What’s new note after each release.

11 أغسطس 2026

• A three-state theme control: light, dark, or follow your system.
• A retuned light theme and one type scale.
• Every verification address printed on a report opens its verification page.
• Privacy and Terms rewritten in plain words.

10 أغسطس 2026

حُدّث محرك الحساب إلى 1.3.0. تُعاد النتائج المحفوظة وتُعلَّم أي تغييرات عند فتحها.

• Fields the calculator works out for you are read-only on every calculator.
• Equations are properly typeset, so fractions and roots stretch to fit.
• Redrawn charts, with sub-decade gridlines on logarithmic axes.