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Power Monitor ICs

Authors:
Geoffrey Hunter
Geoffrey Hunter
Published On:
May 7, 2025
Last Updated:
May 7, 2025

Power monitor ICs are integrated circuits that typically are used to measure mains power (e.g. 110VAC, 230VAC) in an isolated manner and provide digital outputs to a microcontroller. This is a placeholder for the reference: allegro-acs37800-typical-application shows a typical application diagram of a power monitor IC.

A typical application diagram of the Allegro ACS37800 power monitor IC.1

Examples

Allegro ACS37800

The Allegro ACS37800 contains a hall-effect sensor which is used to measure the AC mains current in an isolated manner.

These features enable isolated current sending without expensive Rogowski coils, oversized current transformers, isolated operational amplifiers, or the power loss of shunt resistors. - Excerpt from the Allegro ACS37800 datasheet.1

A functional block diagram of the Allegro ACS37800 power monitor IC.1

Footnotes

  1. Allegro Microsystems (2024, Jun 25). ACS37800 - Isolated, Digital Output, Power Monitoring IC with Zero-Crossing Detection, Overcurrent and Overvoltage Flagging [datasheet]. Retrieved 2025-05-07, from https://www.allegromicro.com/-/media/files/datasheets/acs37800-datasheet.ashx. ↩ ↩2 ↩3