DESCRIPTION

This application note describes the PM9904BPD evaluation board and together with the SA9904B data sheet provides a complete evaluation platform. The SA9904B is an accurate bidirectional power / energy measurement IC with serial (SPI) interface measuring active as well as reactive power / energy, RMS voltage and frequency. More detailed information specific to the of SA9904B can be found in its datasheet.

FEATURES

■ Designed to be used together with accompanying software as fully functional three phase trivector meter.

■ Better than class 1 operation.

■ On board power supply.

■ Two on-board LED’s for active and reactive pulse output.

■ 3 Phase 4 wire configuration.

■ On-board LCD display.

■ On-board current transformers.

■ Isolated connection to PC parallel port.

■ Easy accessible test pins.

■ Micro-controller plug-in support