SDAA159 October   2025 XTR200

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Detailed Description
    1. 2.1 Current Measurement
    2. 2.2 Current Transmission
    3. 2.3 Additional Output Circuitry
    4. 2.4 Simulations
  6. 3Summary
  7. 4References

2 Detailed Description

An example current monitoring circuit is shown in Figure 2-1. The circuit consists of three parts: current measurement, current transmission, and additional output circuitry for clamping and backwards compatibility. The design process in this document uses a hypothetical 12V power supply with a 50A rated output current capacity, but the concepts are applicable to all power supplies.

Simplified Schematic of a Current Monitor Output for a 50A Rated, 12V Power Supply Figure 2-1 Simplified Schematic of a Current Monitor Output for a 50A Rated, 12V Power Supply