Portable Class-E Chopper
Class-E Chopper
Four Quadrant Control
50V DC, 45A
High-Rating MOSFET
Atmega328P
OLED Display
Keypad Interface
Battery Operated
Started: June 1, 2025
Completed: July 1, 2025
Duration: 4 Weeks
Project Overview
I’ve developed a portable Class-E Chopper for DC motor speed control, enabling four-quadrant operation. It uses a high-rating MOSFET, keypad input, and OLED feedback driven by an Atmega328P microcontroller.
Key Features
- 🔸 Duty Cycle Control: Adjust motor speed precisely.
- 🔸 Direction & Voltage: Control forward/reverse and output voltage.
- 🔸 Frequency Modes: Constant or variable switching frequency.
- 🔸 Compact & Portable: Battery-operated, ideal for field use.
Achievements & Thanks
Built and tested up to 50V DC, 45A—thanks to the Atmega328P and MOSFET communities!
Target Audience
- 🔹Industrial automation engineers
- 🔹Power electronics researchers
- 🔹Embedded systems developers
- 🔹DIY hobbyists