Power Supply Compatibility for Jetson Orin Nano Development Kit

Issue Overview

Users are inquiring about the compatibility of a 12V ATX power supply unit (PSU) with the Jetson Orin Nano Development Kit. The main concern is whether using a 12V power source instead of the recommended 19V 2.4A power adapter is safe and functional for the device. This question arises in the context of setting up the development kit, potentially affecting the power delivery and overall performance of the system.

Possible Causes

1. Voltage Mismatch: The discrepancy between the recommended 19V and the proposed 12V power supply could lead to concerns about proper device operation.

2. Power Regulation: Inadequate power regulation from the ATX PSU might cause instability or improper functioning of the Jetson Orin Nano.

3. Load Balancing: Insufficient load on the PSU relative to its maximum output could result in poor regulation and potential issues with the development kit.

4. Device Specifications: Uncertainty about the acceptable voltage range for the Jetson Orin Nano Development Kit may cause hesitation in using alternative power sources.

Troubleshooting Steps, Solutions & Fixes

1. Verify Voltage Range:

   • Consult the Jetson Orin Nano Development Kit datasheet.
   • Confirm that the operating voltage range is 5V to 20V.

2. Use a Properly Regulated 12V Power Supply:

   • Ensure the ATX PSU provides a stable and well-regulated 12V output.
   • Verify that the PSU can deliver sufficient current for the development kit’s needs.

3. Consider Load Requirements:

   • If using a high-capacity ATX PSU, ensure it’s loaded sufficiently (approximately 5-10% of max output) for proper regulation.
   • Consider adding a dummy load if necessary to maintain stable voltage output.

4. Monitor Power Delivery:

   • Use a multimeter to check the actual voltage output from the ATX PSU under load.
   • Monitor the development kit for any signs of instability or unexpected behavior when powered by the 12V source.

5. Implement Safety Measures:

   • Use a fuse or circuit breaker appropriate for the Jetson Orin Nano’s power requirements.
   • Ensure proper grounding of both the PSU and the development kit.

6. Alternative Power Sources:

   • If issues persist with the 12V ATX PSU, consider using a dedicated 19V 2.4A power adapter as recommended by the manufacturer.
   • For portable applications, explore compatible battery solutions within the 5V to 20V range.

By following these steps and considerations, users can safely explore using a 12V ATX PSU with their Jetson Orin Nano Development Kit while ensuring optimal performance and device longevity.