Digital Power Reference Design

Digital AC-to-DC Power Supply

Features highlights:

• Full Digital Control
• Multi-stage Design Includes:
• Universal Inputs (85 V – 265 VAC, 45-65 Hz)
• Boost PFC (PF > 0.98)
• Soft-Start (programmable)
• Phase-Shifted Full-Bridge ZVT (soft-switching)
• Synchronous Rectification
• 12-Volt Intermediate Bus
• Multi-Phase Synchronous Buck Converter 3.3 V Output
• Single-Phase Synchronous Buck Converter 5 V Output
• Automatic Fault Handling
• Remote Power-Management Capability
• Flexible Start-up Capability

Digital Pure Sine Wave Uninterruptible Power Supply (UPS) Reference Design

Features highlights:

• Input Range AC:
  • 95 to 135 V ,60 HZ +/-3
  • 210 to 280 V ,50 HZ +/-3
• Output Voltage AC :
  • 110 V @ 60 Hz +/-1
  • 220 V @ 50 Hz +/-1
• DC Input:
  • 36V (12 VDC x3)
• Adjustable Charging Current
• High Efficiency
• Pure Sine Wave Output With THD <3%
• Power Rating:
  • 1000 VA Steady-State Output Power
  • 1350 VA Peak Power (Surge)
• Mains to Battery Transfer Time < 10 ms
• Supports Crest Factor of 3:1

Digital Interleaved PFC Boost Converter

Features highlights:

• Operates at universal input voltage (85-265 Vac, 45-65 Hz)
• Operates up to 350 W sustained output
• Output voltages up to 400 Vdc
• Power factor correction of 0.998 at full load and 120 VAC input
• Current Total Harmonic Distortion (ITHD) of 3% at full load and 120 VAC input
• Fault protection
• Royalty Free Reference Design