The schematic begins with the DC input terminal (J1). Key components include:
Design Note: The schematic notes that the maximum absolute voltage is 60V, but recommended operation is 8–56V. The TVS diode and the MOSFET’s V(BR)DSS rating dictate this limit.
Before diving into the schematics, it’s important to understand why you should look beyond the user guide: odrive 3.6 schematic
Let’s say your Motor A is not spinning. Here’s how the schematic guides you:
The MCU features advanced timer hardware capable of generating high-resolution Pulse Width Modulation (PWM) signals. The schematic connects these timer outputs to the gate driver inputs. The ODrive firmware utilizes "Space Vector Modulation" (SVM The schematic begins with the DC input terminal (J1)
The schematic utilizes three half-bridges (legs), one for each motor phase (A, B, C).
The main controller is an STM32F405 with an ARM Cortex-M4 FPU running at 168 MHz. On the schematic, you will see: Design Note: The schematic notes that the maximum
Crucially, the schematic maps which GPIOs go to which peripherals: timers for PWM (TIM1, TIM8), ADCs for current sensing, and UARTs for communication.
If you try to trace a physical ODrive v3.6 board:
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.