This is revision A of the Motor30 board. It is part of the Robus project.

Motor30 (Revision A)

Introduction

The Motor30 board is an H-bridge for delivering up 30 Amperes of current to a motor. In addition, it has an on-board hall-effect shaft angle sensor. The module is fully opto-isolated to keep motor noise from leaking across to the logic power supply.

Design

{Some of the links below are currently broken.}

The entire Motor30 project is available as a KiCAD archived ZIP file:

• ZIP file

There is a seperate design document with an embedded SVG of the schematic available.

The following images are available in the in PS and SVG formats:

• Circuit Schematic (PS format) (SVG format)
• PCB Back Layer (PS format) (SVG format)
• PCB Front Layer (PS format) (SVG format)
• PCB Front Silk Screen Layer (PS format) (SVG format)

This is my list of pertinent vendor data sheets from my private cache of datasheets:

74x74 (PDF)

A dual D-type flip-flop.

ACS715 (PDF)

A 30 Ampere unidirectional current sensor.

AS5040 (PDF)

A 10-bit hall-effect absolute angle sensor.

DS8921 (PDF)

An RS-422 receiver and transmitter in a single package.

LExxAD (PDF)

An LDO voltage regulator that is avaiable in 4.5 volts.

LM2921 (PDF)

A 5V LDO voltage regulator that is save to 30V input voltage.

LM311 (PDF)

An open-collector voltage comparator.

LPC175x (PDF)

An embedded ARM chip from NXP.

MPC1700

An inexpensive low drop out voltage regulator.

MCP2551 (PDF)

A CAN bus transceiver

MCP600x (PDF)

A generic op-amp.

VNH3SP30-E

An inexpensive low drop out voltage regulator.