PSoC®- based Digital Panel Meter (DPM) Solution - From Triveni Electronics | Cypress Semiconductor
PSoC®- based Digital Panel Meter (DPM) Solution - From Triveni Electronics
May 16, 2012
MEASURES TRUE RMS VOLTAGE /CURRENT
AUTO-ZEROING ON POWER-UP THAT SAVES TIME DURING CALIBRATION
OPERATES FROM SINGLE POWER SUPPLY ( 5 V DC)
SMALL FORM FACTOR
Can be customized for DC voltage /current measurement
4-20 mA current output
PC GUI software for calibration
The Digital Panel Meter (DPM) based on Cypress’s PSoC® programmable system-on-chip is a quick, cost-effective, programmable solution that addresses the needs of the digital panel meter market. The solution measures true RMS voltage or current with an accuracy of up to 0.3 percent over the entire input range.
The analog integration in PSoC makes it a single-chip solution and eliminates the need for external components that are required for signal conditioning. The auto-zeroing feature on power-up saves time during calibration. The measured true RMS voltage or current is displayed in a four-digit seven segment display. There are user keys to set parameters such as voltage (or current) range and Current Transformer (CT) ratio.The solution can be customized for DC voltage / current measurement. Optional features include MODBUS, 4-20 mA output, and GUI for software calibration.
Based on PSoC 1 (CY8C24423A), it is available in a small form factor and is easily customizable. It is designed and developed by Triveni Electronics, one of Cypress’s premier design partners in India.
230V AC , / - 10 %
1V to 350V (0.1V resolution)
50mA to 5.0 A (1mA resolution)
0.3 % True RMS
45 to 62 Hz
4-digit Seven Segment Display
2 Nos. to set the parameters
11-bit Delta sigma ADC for voltage or current measurement
On-Chip Programmable Gain Amplifier (PGA) for signal conditioning