https://github.com/whatnick/din_power_atm90e26

KiCAD design files for DIN rail energy monitor power , voltage and current sampler
https://github.com/whatnick/din_power_atm90e26

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KiCAD design files for DIN rail energy monitor power , voltage and current sampler

• Host: GitHub
• URL: https://github.com/whatnick/din_power_atm90e26
• Owner: whatnick
• Created: 2017-11-04T04:55:30.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2020-03-19T11:07:34.000Z (about 5 years ago)
• Last Synced: 2025-02-10T15:32:18.142Z (3 months ago)
• Language: HTML
• Size: 4.6 MB
• Stars: 4
• Watchers: 4
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# DIN Rail Format Energy Meter Base Board

## Power SMPS module

- 90v-240v AC input

- Isolated 5V output

- 600mA / 3W power rating

## Over-voltage protection/over-current protection

- 0.1A rated PTC fuse

- 300V rated TVS suppressors, x1 per-phase

## Isolation

- 5v DC-DC isolator to power metering module

## Power supply clean-up

- x2 1117 series LDO for generating 3.3v from 5V input to clean up SMPS noise

## Backup-power

- MCP73831 series floating Lipo battery charger for backup lipo battery

## AC Voltage Sampler

- x3 Voltage divider ladders with 880K + 1K total serial resistance

## AC current Sampler

- x8 2.4ohm current sense resistor based CT clamp inputs

## Connectors

- 5.08mm spacing phoenix contact AC voltage connector

- Molex nanofit 2x4 type dense AC current clamp connectors