Project Name: SimpleFOC_X Brushless Motor Driver Board

Project Author: LazyWoo

Created a product-level SimpleFOC brushless motor driver board!

Called SimpleFOC_X.

Schematic Diagram

PCB Diagram

3D Preview Diagram

SimpleFOC_X V1.0 input voltage is 12-24V DC voltage input.

Reverse connection protection diode can prevent damage to the circuit from reverse DC power supply, but will cause a certain degree of voltage drop. The SS54 diode has about 0.5V voltage drop at full load of 5A, but in this usage scenario, the current cannot reach 5A, and its voltage drop is about 0.3V. When setting the supply voltage in the program, you can subtract 0.3V from the input voltage to get VCC voltage (it can also be ignored).

The USB to serial chip uses CH340C. To adapt to the ESP32 level, 3.3V is used for power supply.

The VCC pin and V3 pin are both connected to the 3.3V level, 100nF capacitor is used for decoupling, RTS and DTR pins are used for the automatic download circuit of ESP32.

DRV8313 provides internal shutdown functions to achieve overcurrent protection, short circuit protection, undervoltage lockout, and overtemperature protection.

After powering up, the fault light will automatically turn off.

DRV8313 maximum current is 2.5A (peak current) @25°C@24V, it cannot work for a long time at currents above 1.5A.

INA240 has enhanced PWM suppression capabilities, making it an excellent choice for built-in current detection.

The sampling resistor is connected in series with the motor phase line, and the detected current is always the motor phase current. Since the current in the inductor does not change suddenly, the sampled current is continuous and stable regardless of the PWM duty cycle state.

The current of the motor is sine wave, for the sampled differential signal, the negative half cycle is negative. For convenience, it needs to add a bias voltage to ensure that the full cycle output is positive.

Input Voltage: DC 12-24V, D2 is used for reverse connection protection, D2 can withstand a maximum forward current 5A, but there is a 0.5V voltage drop under full load, and there is about a 0.3V voltage drop during low current usage.

VCC=Input Voltage-0.3V.

The magnetic encoder interface is an I2C interface, powered by 3.3V, used to connect to the AS5600 magnetic encoder. U, V, W connect to the three-phase line of the brushless motor.

This project is open source!

—— Want to replicate ? Want to give the author a thumbs up ? You can copy the open source URL to go to the original text.

Open Source URL:https://oshwhub.com/yourallo/simplefoc_x

Click the end of the article 【Read the original text】 to directly enter the original text.

04

What? Are you possessive?

”

The editor guesses that there will definitely be friends saying:

This can really be!

Currently, SimpleFOC_X has been listed on the Lichuang Open Source Market, a set for 179.9, and the motor for 99.9, scan to immediately own it~

After scanning, click the red box 【button】▽

What is the Lichuang Open Source Market?

Some say open source doesn’t make money…

So we launched the open source market!

To provide benefits such as chip placement for the authors on the shelves, allowing them to easily produce in bulk and sell open source works or kits at low cost.

We strive to let creative friends see good projects, choose to replicate DIY, or directly purchase a finished product/kit

The Lichuang Open Source Market aims to provide online trading channels for open source users. The platform will provide product incubation support to help open hardware enthusiasts monetize their creations!

Want to browse, just scan this code:

Website: https://oshwhub.com/market

Want to list original works and earn extra income, just add Chen Gong:

Please note [Shelf Market], explain your intention~

* This article reprinted user creations from the “Lichuang Open Source Hardware Platform”, if there is any infringement, please contact for deletion

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