SNVAA20
July 2021
DRV8833
,
DRV8833
,
LMR33630
,
LMR33630
Trademarks
1
Introduction
2
Motorized Resistive Load Architecture
2.1
Controller Board
2.2
Resistor Plate
3
Motorized Resistive Load Design
3.1
Controller Board Design
3.1.1
Power Management
3.1.2
Power Converter Selection
3.1.3
Interface and ADC Selection
3.2
Resistor Plate Design
3.2.1
Motor and Motor Driver Selection
3.2.2
Resistor Track
3.2.3
Mechanical Arm Assembly
3.2.4
Feedback Control
4
Thermal Considerations
5
Performance and Results
6
Summary
7
Appendix
7.1
Controller Board Main Schematic
7.2
Controller Board Sub-Schematics
7.3
Resistor Plate Schematics
7.4
Python Code
7.3
Resistor Plate Schematics
Figure 7-5
Resistor Plate: Main Schematic
Figure 7-6
Resistor Plate: Resistor Sub-Schematics