Voltage and Current Signal Conditioning
Signal conditioning unit measures the current based on the shunt resistor and measure the voltage based on the potential divider circuit. The two level amplification helps the user to customize the amplifier gains.
Measurement range
- Voltage: 10 to 1000 Vrms
- Current: 10 to 100Arms
- Type : AC and DC
Channel availability
- 2 Channel
- 4 Channel
- 8 Channel
Applications
- Motor drives.
- Frequency Inverters.
- Uninterruptible Power Supply.
Voltage Signal Conditioning
- Voltage measurement using potential divider circuit
- Customizable voltage measurement range from 10V to 1000V
- Gain: 100
- Very low gain error and drift (+/- 0.2%)
- Low Non-linearity and drift (0.01%)
- Bandwidth: 275kHz
- High CMTI upto 140kV/ µs
- Isolation voltage: 5000 Vrms
- Customizable voltage measurement channel: 2, 4 & 8.
Current Signal Conditioning
- Shunt resistor based current sensing
- Customizable current range from 10A to 100A
- Gain: 5
- Very low gain error & drift (+/- 0.3%)
- Low Non-linerarity and drift (0.03%)
- Bandwidth: 310kHz
- High CMTI upto 140kV/ µs
- Isolation voltage: 5000 Vrms
- Customizable current measurement channel : 2, 4 & 8
Difference between Shunt and hall based isolated current sensing.
| Category | Shunt-based | Hall-based |
| Solution Size | Similar | Similar |
| Offset | Very Low | Medium |
| Offset drift over temperature | Low | Medium |
| Accuracy | <0.5% after calibration | <2% after calibration |
| Noise | Very Low | High |
| Bandwidth | Similar | Similar |
| Latency | Similar | Similar |
| Non-linearity | Very Low | High |
| Long-term stability | Very Low | Medium |
| Cost | Similar | Similar |
| Vibration impact | Very Low | Low |
| Power dissipation | Low | Very Low |
| Customization | Flexible | Limited |
