E01 - Analog Signal Conversion
Lunch & Learn Episode 1: Converting mA Signals to VDC
Presenter: Austin Funken
This episode explored the practical conversion of 4–20 mA control signals to 2–10 V using resistors, a frequently encountered challenge for electrical engineers working with controllers and field devices. This session features hands-on examples, key formulas, and troubleshooting tips for sizing resistors and understanding both series and parallel circuit setups. Drawing from real field questions, Austin explained how Ohm’s Law applies to signal conversion and highlighted common mistakes to avoid, such as improper resistor pairing.
Austin broke down the process using Ohm’s Law and real-world examples, demonstrating how to calculate the correct resistor size and how to combine resistors safely when exact values are not available. He also reviewed fundamentals of series and parallel resistor circuits, clarifying how they affect current and voltage. The presentation focused on actionable tips to help attendees confidently perform conversions and troubleshoot in the field, with an emphasis on minimizing connection points to reduce failure risk.
Revision History
| Revision | Date | Name | Description |
|---|---|---|---|
| 1.0.0 | 9/12/2025 | Sneha Karnik | Initial Implementation |