Designing high-power parallel arrays with PRMs
Architectural LED lighting
Key challenges
- Develop a high-efficient AC-DC custom supply that could supply dual 24VDC 400W outputs
- Create a power supply to run panels of LEDs
Solution
- Designed an AC-DC converter that accepts a single-phase 90 – 264VAC input and has dual channel 24VDC outputs
- Featured high-efficiency operation, which included both out-rush control and fused outputs
Factory automation
Key challenges
- Develop a high-efficient custom power supply that runs off 3-Phase 208VAC
- Develop a power supply that delivers 5,000W
- Feature in-rush protection, power good, I2C control and diagnostics
- Able to be fan cooled with speed control
Solution
- Developed an AC-DC power supply that is >91% efficient
- Ability to accept a 3-Phase 208VAC input and has a 380VDC output
- Developed the power supply to be fan cooled
Manufacturing control
Key challenges
- Develop a 3-Phase input power supply that will convert down to dual 48V outputs @ 1,500W each
- Develop the power supply to be highly efficient using an I2C interface
- Feature on/off control and input/output, voltage/current measurements
- Must include fault monitoring
Solution
- Developed a solution that filtered and boosted the 3-Phase input, then fed it through high-voltage bus converters
- The converter was able to take in 380VDC and deliver 48VDC @ 1,500W each with a peak efficiency >95%
- All outputs were isolated
- Included an I2C interface for power monitoring and control
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