This document is part of a comprehensive series that provides guidance about current sensor selection. Here are the main points from the article. For more information and to view the article in it’s entirety please use the link below.
Key Takeaways
- Low-Side Ease: Easiest to design; operates near ground, eliminating complex high-voltage isolation requirements.
- Safety Demands High-Side: Choose high-side sensors for safety-critical systems needing short-to-ground fault diagnostics.
- Motor Control Priority: Choose in-line sensors to easily maximize motor torque and overall control efficiency.
- Magnetic vs. Shunt: Integrated magnetic sensors eliminate external isolated amplifiers and complex dual-supply designs.
- Simple Selection Matrix: Map your system priorities—cost (low-side), safety (high-side), or performance (in-line)—to choose.
Allegro Microsystems current sensors offered at DigiKey
High-Side Vs. Low-Side Current Sensing: Why Placement Matters | Allegro MicroSystems