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Odrive 3.6 Schematic

The ODrive 3.6 uses the STM32F405RGT6. The schematic reveals the genius of the pin mapping.

Pro Tip: If you are designing a custom breakout board, never assign these specific timer/ADC pins to anything else. The firmware expects them at hard-coded addresses.

The schematic reveals a sophisticated multi-rail power system designed to handle high voltages (12V–56V) while generating clean low-voltage supplies for sensitive analog and digital components.

  • Gate Drive Supply: A critical feature is the charge pump or bootstrapped supply for the high-side MOSFET gates, often generated using a diode-capacitor network (e.g., IR2101-style drivers) or an isolated DC-DC converter.

    • The ODrive doesn’t measure motor current just by looking at the DC input. Instead, it measures the current in each phase individually using low-ohm shunt resistors placed between the low-side MOSFETs and ground. odrive 3.6 schematic

    Pros:

    Cons:

    The ODrive 3.6 is widely considered the gold standard for open-source, high-performance motor control. Whether you are building a 3D printer, a robotic arm, or a custom electric skateboard, the ODrive’s ability to run high-power BLDC (Brushless DC) motors with incredible precision is unmatched. The ODrive 3

    However, to truly master this device—whether you are troubleshooting a burnt MOSFET, designing a custom carrier board, or simply trying to understand why the encoder inputs are where they are—you need one thing: the ODrive 3.6 schematic.

    In this article, we will dissect the official ODrive 3.6 hardware design, explain the critical sub-sections of the schematic, and show you how to use this document to elevate your robotics projects.

    The board functions as a three-phase inverter. It takes a high-voltage DC input (from a power supply or battery) and converts it into three variable-frequency AC outputs to drive a BLDC motor. Pro Tip: If you are designing a custom

    The schematic can be broken down into four main subsystems:

    The main controller is an STM32F405 with an ARM Cortex-M4 FPU running at 168 MHz. On the schematic, you will see:

    Crucially, the schematic maps which GPIOs go to which peripherals: timers for PWM (TIM1, TIM8), ADCs for current sensing, and UARTs for communication.