CircuitShepherd
CircuitShepherd
Draw a schematic, set your target values, and CircuitShepherd's AI finds the right part values in real time. No coding, no scripting, no run-modify-repeat.
Your daily driver to avoid time-consuming manual iterations and calculations.
Start from a template or from scratch. Draw any schematic you want and CircuitShepherd will find the right part values for you.
Define multiple targets. The AI prioritizes them by their relative and absolute tolerances — this is your cost function.
Auto values are adjusted in realtime and instantly adapt to any change you make to the circuit. No run, modify, repeat.
Not another SPICE front-end. A purpose-built realtime engine, written from scratch.
Its own simulation engine, written entirely from scratch — built for realtime parameter optimization of simpler circuits.
Just define what to measure and plot. CircuitShepherd runs the required simulations implicitly.
Simulator and optimizer always run in the background. Results update immediately as you make changes.
Isolated circuits are simulated independently — yet the parameter optimizer always works globally.
Entangled parts and circuits, alias meters, discontinuity measurements, and many more ideas invented from scratch.
A complete walkthrough on YouTube. Look for the “CircuitShepherd tutorial” playlist.
A must-have tool to solve all sorts of linear circuit problems in the AC and DC domain — and plenty of non-linear ones too.
Design all sorts of OPAMP circuits — it really shines here. Includes open-loop stability analysis.
Comparator-based circuits — directly measure and design the switching points (discontinuities).
Faster and easier than the classic Smith chart approach.
Common emitter, common base, common collector and more basic transistor designs.
Simpler designs with diodes, FETs and bipolar transistors.
Solve and design resistor networks with ease.
PT1, PT2, Sallen-Key, low / high / band pass — and higher-order filters for professionals.
In general, a must-have for all sorts of linear circuit problems in the AC and DC domain.
A free, complete video tutorial walks you through every concept — from your first schematic to entangled parts and discontinuity measurements.
▶ Watch on YouTube
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