Electronics Tools

Electronics tools for the numbers that sit between a schematic and a working circuit: Ohm's law and the power equation solved from any two known values, resistor color bands decoded into resistance and tolerance with series and parallel combinations, PCB trace width, resistance, and impedance from the IPC-2221 tables and microstrip or stripline geometry, duty cycle and inductor and capacitor sizing for inverting buck-boost and forward converters, lumen, lux, and candela conversions for lighting, and what a device costs to run from its wattage, its hours, and your utility rate. Most of it is arithmetic anyone could do once by hand; the value is doing it forty times in an evening without a transcription error. The mistake that costs people boards is sizing a trace by habit instead of by copper weight and allowed temperature rise, which is why the trace-width tools here ask for both before reporting a width. If you are new to the category, start with the Ohm's law tools: they make the relationship between voltage, current, resistance, and power concrete, and every other tool here assumes it.

7 tools available