Power Conversion
Programmable AC power sources used for development and test applications convert locally available utility power to specific precision AC or DC output formats needed to test or control units under test. This is called “solid state power conversion” as active electronic circuitry is used rather than rotary converters or voltage only transformer. This has numerous advantages for test applications:
- Conversion of both voltage and frequency at the same time
- Galvanic isolation between the grid and unit under test as the power source output can be floated
- Available phase conversion between single, split or three phase grid to either single, split or three phase as needed
Figure 1: Single Phase Grid Connection
- 208Vac three phase Wye Japan
- 208Vac three phase Wye US
- 400Vac three phase Wye Europe, Asia
- 480Vac three phase Delta US
Figure 2: Three Phase Delta Grid Connection
Figure 3: Three Phase WYE vs DELTA Configurations
- Input voltage range
- Output power rating
- Power factor
- Efficiency
- Overload Operation
- AC Voltage Input range: 230Vac ± 10%
- Current: 15A
- Power Factor: 8
- Efficiency: 82%
- Passive PFC
- Active PFC
When selecting a programmable power source, either AC and or DC, consider the AC input configuration and specifications carefully to help you choose the best solution.