⚡ High Power DC-DC Step-Down Buck Converter Module (800W) ⚡
Reliable. Adjustable. Built for serious power. 🔧🔥
🚀 Key Features
✅ High-quality components for excellent durability and stable performance
⚡ High power design with large double iron-silicon-aluminum magnetic ring
🔄 MOS anti-reverse protection (input won’t burn if wired backward)
🎛️ Constant Voltage & Constant Current adjustable output
💡 Status indicator LEDs: output indicator + over-current protection light
❄️ Aluminum heat sink + intelligent temperature-controlled fan for efficient cooling
📊 Main Parameters
🔌 Input Voltage: DC 20V – 70V
🔋 Input Current: Max 20A
🔧 Output Voltage: DC 2.5V – 58V (adjustable)
⚙️ Output Current: Max 30A (adjustable)
🔥 Output Power: Max 800W
🕒 Standby Current: ≤70mA (24V input / 12V output)
📉 Ripple: ≤120mV (24V → 12V / 20A)
⚡ Efficiency: 92% – 96%
🔁 Topology: Non-isolated BUCK
🌡️ Working Temperature: -20℃ to +60℃
🧠 Important Instructions
⚠️ Input/output polarity must not be reversed or short-circuited
⚠️ Input peak voltage must not exceed 78V
🔄 Voltage & current knobs:
🔌 Short-circuit protection:
📐 Current calibration:
💡 LED indicator mod:
🎚️ External analog control:
Control signal: 0–5V
Must use independent power supply (do NOT share ground!)
Remove R38 for voltage control
Remove R46 for current control
🚫 Not suitable for motors or high inrush current loads
🔋 Output Power Notes
📉 Input vs Output Voltage Relationship
70V → 58V max
60V → 49V max
50V → 40V max
40V → 32V max
30V → 24V max
20V → 16V max
🌞 Main Applications
🔆 Solar street light drivers
🔋 Adjustable CV/CC DIY power supply
💡 High-power LED drivers
☀️ Solar charging systems
🚗 Vehicle & mobile device power supplies
🔋 Battery charging systems
⚠️ Safety & Usage Notes
⚡ Use caution above 36V to prevent electric shock
🔩 Tighten terminal screws securely for high-current operation
🌬️ Ensure proper ventilation under heavy load
🛡️ Protect from dust & moisture
📦 Package Includes
📦 1× 800W High Power DC-DC Step-Down Buck Converter Module
🔥 Power it right. Cool it well. Build with confidence. 🔥