Place an isolated high-voltage DC source (e.g., 100V–400V) to power the top drain of your N-channel MOSFET H-bridge. 2. The Bootstrap Circuit Setup The high-side channel relies on a floating bootstrap rail.

Files created in a newer Proteus version may not load correctly in an older one. A workaround is to open the .LIB file in a text editor, locate the version field, and modify it to match your software version.

However, testing these high-frequency circuits on a physical breadboard often leads to destroyed components due to improper timing or faulty bootstrap circuits. Simulating your design in Proteus Visual Designer or ISIS before prototyping saves time and money.

Simulating the IR2110 in Proteus provides an excellent foundation for power electronics design. By installing the correct library files, utilizing ultra-fast bootstrap components, and adjusting your simulator configurations for power electronics, you can successfully emulate complex motor control and inversion circuits before ever heating up a soldering iron.

Practical considerations and common pitfalls

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Useful for analyzing the output waveform and ensuring the bootstrap capacitor is charging correctly over time. Voltage Probes: Place probes on the HOcap H sub cap O LOcap L sub cap O

Use a fast-switching diode (e.g., UF4007) for the bootstrap, not a standard rectifier diode (like 1N4007), as the standard diode is too slow.

Logic supply and logic ground (typically 5V or 15V logic).

If you cannot find a library that works, you can create your own simulation model. This is an advanced but powerful technique.

Ensure your low-side MOSFET is turning on periodically. The bootstrap capacitor only charges when the low-side switch pulls the VS pin down to COM/GND . If you run a 100% duty cycle on the high side, the floating supply will drain, and the high-side output will turn off. 5. Summary Checklists Parameter / Action Requirement Logic Inputs (HIN/LIN) 0V to 5V (or up to VDD) Bootstrap Capacitor Range Bootstrap Diode Type Ultra-fast recovery (e.g., UF4007) Proteus Library Destination ...\Proteus 8 Professional\Data\LIBRARY If you'd like to expand your project, tell me: