3.6KW Bitcoin miner power
Release time:
2023-05-24 14:57
PROJECT INTRODUCTION
The project is a 3.6kW bitcoin miner power supply with input 90-264Vacand output 12V300A. SiC-based totem-pole PFC and interleaved parallelsynchronous rectifier LLC topology were selected for system design. Thetotem pole PFC achieve extremely high efficiency (peak up to 99%) andthe interleaved synchronous LLC reduce output current ripple from 48%to 12% which greatly reducing output capacitor stress.
DESIGN SPECIFICATION
| Input Voltage | 90Vac~264Vac |
| Output voltage | 12Vdc |
| Rated Power | 3600W |
| System Efficiency | 94%@50%load，90.5%@100%load |
FEATURES
· Totem pole PFC's peak efficiency reaches up to 99%.
· Smaller output current ripple and capacitors:
· Single MCU design reduces the system cost;
· Current sharing design for interleaved LLC
· Full protection, including input UVLO. OCP and output OVP. OLP
MAIN TOPOLOGY
MAIN DEVICES
| Function | Part Number | Brand |
| Input Fuse | 0443002.DR | Littelfuse |
| PFC HF MOS | C3M0060065K | Wolfspeed |
| PFC HF MOS | IXFH80N65X2 | IXYS |
| PFC MOS Driver | IXDN609SIA | IXYS |
| PFC Current Sensor | MCA1101-50-5 | Aceinna |
| LLC MOS | IXFH34N65X2 | IXYS |
| LLC MOS Driver | IXDN604SIA | IXYS |
MEASUREMENT RESULTS AND WAVEFORMS
Efficiency curve
PF curve
PFC working waveform @20% load
PFC working waveform @100% load
LLC working waveform @output 50A
LLC working waveform @output 100A
LLC working waveform @output 200A
LLC working waveform @output 300A
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3.6KW Bitcoin miner power
2023-05-24
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