Power Budget Designer
Plan power architectures, calculate losses and automatically create power-flow diagrams.
Power Budget Designer · V1.5
Design an entire power distribution architecture, from the input connector to every load. Define consumers with multiple power rails, voltage ranges, tolerances and current demands. Add DC/DC converters, LDOs, filters, protection devices or custom blocks.
The designer calculates currents and power losses throughout the entire supply chain, working backwards to the input. Display Imin, Ityp and Imax independently. The calculations account for voltage ranges, conversion efficiency, voltage drops and quiescent current.
The generated diagram places input supplies on the left and loads on the right. Vertical power buses organize connections; rails spanning multiple stages use horizontal buses above the diagram. Blocks can be reordered vertically within a stage or dragged horizontally between electrically valid stages without changing connections. Press Esc to cancel the current action and return to selection.
Features
- Unlimited power stages: DC/DC, LDO, filters, protection and custom blocks
- Voltage ranges and typical values; Min / Typ / Max load currents
- Automatic current, power and power-loss budget
- Color-coded bus routing, expandable diagram and manual stage placement
- Checks for current ratings, voltage ranges and power architecture issues
- Switch between Deutsch / English in the editor
- Save and load JSON projects; export PNG, SVG, CSV and LaTeX/TikZ
- Download the matching TikZ macro library directly from the editor
Privacy: The tool processes project data locally in your browser. Projects are not uploaded to BE-IIS servers. No account is required.
Note: This is a steady-state power-budget estimate. Inrush currents and time-dependent load profiles are not modeled.