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Part Number: ADM00974

PAC1934 USB A POWERMETER

User Guide: PDF
PAC1934 Power Meter User's Guide
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Overview

USB Type A Power and Energy Meter based on Microchip’s PAC1934.

It measures USB voltage and current, automatically calculates instantaneous power and accumulates power over time, making it suitable for power and energy monitoring. It features PAC1934, a Quad DC Power/Energy Monitor with Accumulation IC.

The power meter features a user-friendly joystick control and an OLED display, making it easy for everyone to use it.

PAC1934’s internal 48-bit power accumulator and 24-bit sample counter registers offloads the Power Meter MCU processing load, reducing the device power consumption and making room for additional high-level features.

PAC1934’s internal high-speed data sampling rate (1024) ensures high accuracy metering data reporting with no MCU processing required.

Up to 10 measurements can be saved in device FLASH memory. The device counters can be reset to 0 or can be restored to the data saved previously in the FLASH memory.

  • USB Type A Power Monitor
  • Features PAC1934 Quad DC Power and Energy Accumulation
  • Provides various information on: Bus voltage, current, instantaneous power consumption and energy accumulation
  • Screen can be rotated 180 degrees to ease operation
  • Can be used to profile power consumption on various USB-powered devices
  • "Screen saver” feature further reduces the device internal power consumption, with no data or precision loss.
  • User-friendly menus, with joystick navigation and OLED display
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Videos

PAC1934 USB-A Power Meter
Microchip Main Channel • Dec 20, 2018
PAC1934 USB-A Power Meter

Documentation

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PAC1934 USB PowerMeter firmware source code v1.1 Software Libraries and Firmware Download
PAC1934 USB Type A PowerMeter Firmware v1.1 Software Libraries and Firmware Download
PAC1934 Power Meter User's Guide User Guide Download
ADM00974 Design Files Board Design Files Download
PAC1934 USB Type A PowerMeter (ADM00974) Gerbers component board Board Design Files Download
PAC1934 USB Type A PowerMeter (ADM00974) Gerbers top shield Board Design Files Download
PAC1934 USB Type A PowerMeter (ADM00974) Gerbers bottom shield Board Design Files Download
PAC1934 USB Type A PowerMeter (ADM00974) BOM Board Design Files Download
PAC1934 USB Type A PowerMeter (ADM00974) Schematic component board Board Design Files Download