Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Standalone Full Bridge DC Motor Driver

Status
Not open for further replies.

Hesambook

Full Member level 2
Joined
Sep 26, 2007
Messages
122
Helped
1
Reputation
4
Reaction score
9
Trophy points
1,298
Activity points
3,070
The Full-Bridge (H-Bridge) is the most popular driver circuit to control brushed DC motors. The main advantage of a full bridge driver is the ability to change the rotation direction of the motor, without manually reversing the supply wires. I’ve already published the Half-bridge and H-bridge driver circuits before; however, I was receiving many requests and comments for a standalone H-Bridge driver to control the DC motors, without using any external board or a controller.

Therefore, I introduced a cheap, compact, and standalone H-Bridge DC motor driver that can be embedded in a variety of mechatronic devices. A cheap ATTiny13 microcontroller controls everything and I used the Arduino IDE to write the microcontroller code. All components, except for the connectors, are SMD.

The motor can be controlled in three modes: Forward, Stop, and Reverse. The user can adjust the rotation speed of the motor separately in the forward or reverse direction, using two panel-mounting potentiometers. The low ON-Resistance of the Mosfets allows you to use this circuit in high currents.

To design the schematic and PCB, I used Altium Designer 22. The fast component search engine (octopart) allowed me to quickly collect the components’ data and generate the BOM as well. To get high-quality fabricated boards, I sent the Gerber files to PCBWay. To test the driver board, I disassembled an electric toy car and used its powerful 775 DC motor (plus the gearbox).

It’s a cool experience, just build one and have fun!


Fig-4.jpg



References

Article: https://bit.ly/3Na8vFQ

[1]: ATTiny13 MCU: https://octopart.com/attiny13a-ssur-microchip-77761976?r=sp

[2]: 78L05 SOT89: https://octopart.com/ka78l05aimtf-onsemi-84329328?r=sp

[3]: IRF3205 D2PACK: https://octopart.com/irf3205strlpbf-infineon-65873335?r=sp

[4]: IR2104: https://octopart.com/ir2104spbf-infineon-65872813?r=sp

[5]: MicroCore Arduino Package: https://github.com/MCUdude/MicroCore

[6]: Complied HEX file: https://drive.google.com/file/d/1_FEbxj3XtWoZCNCxfpgcvCwcf9j8cqj-/view?usp=sharing
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top