GridTrak PMU Model A
Rev 9.7, April 2012
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GridTrak PMU Model A, Rev 9.7
* Measures Frequency and Phase Angle for 60Hz and 50Hz AC signals
* Calculates the magnitude for an ideal sine wave of the signal
* Maximum sample rate = 30 to 60 samples per second, reliable rate = 10 samples per second
* GPS PPS Input
* Dual RS232 interfaces for communications with Host PC and GPS
* Uses the AC signal source as the circuit power supply
* Optional jumper to isolate the AC signal from the circuit power supply for using a separate DC power source
* Schematic, PCB Layout, and Firmware source code are Open Source available on GitHub
* IEEE C37.118-2005 output compatible with openPDC and PMU Connection Tester
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GridTrak PMU Prototype
Rev 0x0000, July 16, 2010
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GridTrak PMU Prototype (top)
Microchip dsPIC30F3013 Micro Controller
12.000MHz Crystal Oscillator
MAX232 RS232 Transceiver
MCP1525 Voltage Reference
MCP6292 Operational Amplifier
LM7805 Voltage Regulator
Pulse Per Second (PPS) Generator (bottom)
Microchip dsPIC30F3012 Micro Controller
12.000MHz Crystal Oscillator
LM7805 Voltage Regulator
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