7 kW Three-Phase Digital PFC Power Supply Module

High-Efficiency Three-Phase Active Rectifier for Industrial Drives and Energy Storage
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7 kW Three-Phase Digital PFC Power Supply Module

Overview

7 kW Three-Phase Digital PFC Front-End Rectifier Module

The 7 kW Three-Phase Digital PFC Module is a high-power active rectifier that converts AC 380 V three-phase input to a regulated DC 650 – 700 V bus.
Built with a B6 full-bridge topology and digital FOC + SVPWM control, it reaches 97.5 % efficiency and PF > 0.99, delivering clean, stable DC power for industrial motors, HVAC compressors, and energy-storage inverters.

⚙️ Applications

–  Three-phase motor drives, servo systems, and industrial VFDs
–  HVAC and heat-pump AC-DC conversion stages
–  Photovoltaic / energy-storage inverters and microgrids
–  UPS systems and DC-link front-end rectifiers
–  Industrial test equipment and power-conversion research

💡 Core Technologies

•   Three-Phase Full-Bridge (B6) Active Rectifier with digital control.
•   Digital FOC + SVPWM Control — precise current loop (< 2 ms) and low harmonic distortion (< 4 %).
•   High Efficiency 97 % typ., 97.5 % peak, PF > 0.99 at full load.
•   Adjustable DC Output 650 – 700 V (± 1.5 %) for flexible bus voltage designs.
•   Smart Communication: Wi-Fi and isolated RS-485 (Modbus RTU).
•   Active Dead-Time Compensation prevents shoot-through failures.
•   Comprehensive Protections: OVP, UVP, OCP, OTP, SCP, Overload.
•   Supports air / liquid cooling and continuous 24/7 operation.
•   Bidirectional Energy Flow Support (AC↔DC) for regenerative operation.

🔰 Why Choose Our 7 kW Three-Phase PFC Module

✅  Proven industrial-grade design for 24/7 operation.
✅  Seamless integration with motor drives and inverters.
✅  Proven digital control platform ensures stable output and fast dynamic response.
✅  High power density and optimized thermal layout reduce cabinet size and weight.
✅  Custom OEM/ODM options for output voltage, interface, and mechanical integration.
✅  Perfect for HVAC, industrial automation and ESS manufacturers seeking high-power-factor front-end solutions.

📩 Get a Quote or OEM Service

Partner with a professional manufacturer specialized in three-phase PFC and AC-DC conversion solutions.
Request technical datasheets, engineering support, samples, or OEM custom designs for your motor-drive or ESS application.
👉 Contact us now to discuss your project and get a competitive quotation!

7kw three phase pfc digital power board 02
7kw three phase pfc digital power board 01
7kw three phase pfc digital power board 03
7kw three phase pfc digital power board 02
7kw three phase pfc digital power board 01
7kw three phase pfc digital power board 03

Parameters

Category Parameter Specification / Description
Input Characteristics Voltage Range AC 380 V ± 15 % (3-phase, 3P + PE)
Frequency Range 47 – 63 Hz
Rated Input Current 11 A (@ 380 VAC)
Rated Power 7.0 kW continuous, 8.4 kW peak (5 s)
Power Factor (PF) > 0.99 (full load)
Efficiency (Typ.) 97 % (@ 75 % load), peak 97.5 %
Total Harmonic Distortion (THD) < 4 % (full load)
Leakage Current < 2 mA (@ 380 VAC)
Inrush Current 60 A (Cold start peak)
Output Characteristics Output Voltage DC 650 – 700 V ± 1.5 % (adjustable)
Output Current 10 A continuous, 12 A peak (5 s)
Output Power 7.0 kW continuous
Ripple & Noise < 200 mV p-p (20 MHz BW)
Protection Functions Input UVP / OVP Trip at 320 V / 460 V
Output Over-current 115 % limiting → 125 % × 30 s shutdown
Over-temperature Derating at 90 °C / shutdown at 100 °C
Short-circuit Cycle-by-cycle current limit + hardware fast trip (< 2 µs)
Over-voltage (DC bus) > 720 V immediate shutdown
Control & Communication Control Algorithm Digital PFC (FOC + SVPWM), current-loop < 2 ms
Communication Interface Wi-Fi host / RS-485 (Modbus RTU)
Environmental & Mechanical Operating Temperature −25 °C ~ +60 °C (derate above 60 °C)
Humidity 5 – 95 % RH (non-condensing)
Vibration 10 – 500 Hz, 2.5 G (IEC 60068-2-64)
Protection Level Board IP20 / System recommended IP54
Dimensions 300 × 200 × 50 mm
Weight ≈ 1.8 kg
MTBF > 100 000 h (@ 25 °C)
Compliance & Safety Safety IEC 62368-1 / UL 62368-1
EMC EN 61000-6-2 / 6-4, EN 55032 Class B
Environmental RoHS / REACH compliant

Resources

Pdf
7 kW Three-Phase Digital PFC Power Supply Module

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