7 KW Three-Phase Digital PFC Front-end Rectifier Module

High-Efficiency Three-Phase Active Rectifier for Industrial Drives and Energy Storage

7 KW Three-Phase Digital PFC Front-end Rectifier Module

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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.

Digital PFC Power Supply Board for High-Efficiency AC-DC Conversion
Achieve superior power factor, stable 400–650 (700) VDC output, and low-harmonic performance with our advanced single-phase & three-phase active PFC modules. Perfect for high-power HVAC, drives, chargers, and industrial power systems.

DatasheetGet A Quotation

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Trust

Core Certification

Our Customer

Customer Testimonial

German Pool Heat Pump

PFC + Driver Board Case

“Hunovate supplied the complete PFC power and drive solution for our high-end pool heat pump. The sensorless FOC drive enabled ultra-quiet, smooth pump operation, and the high-efficiency PFC delivered excellent EMC performance—allowing us to pass stringent EU regulatory certification on the first submission.”

U.S. Premium Air Conditioner

PFC + Driver Board Case

“Our high-end AC program required exceptional energy efficiency and low acoustic performance. Hunovate’s high-efficiency PFC and FOC drive solution delivered jointly optimized results—achieving leading system-level efficiency while reducing operating noise to a remarkably low level that meets our flagship-grade requirements.”

Welling Motor

Driver Board Case

“As a motor manufacturer, precise drive matching is critical for us. Leveraging its Golden Sample Library, Hunovate quickly identified the optimal parameters, and the customized FOC algorithm fully brought out our motor’s performance. Their rapid response and results exceeded our expectations.”

HILTI Concrete Vibrator

PFC + Driver Board Case

“HILTI equipment demands exceptional reliability. Hunovate’s high-power PFC supply provided a stable power foundation, while the driver board’s algorithms—optimized for impulsive loads—enabled the system to pass rigorous shock and endurance testing, demonstrating outstanding industrial-grade reliability.”

U.K. Lawn Mower

Driver Board Case

“Our commercial high-power lawn mower operates under highly dynamic load conditions. Hunovate’s driver board, with its outstanding torque control and dynamic load handling, ensured consistent power and efficiency across all scenarios. Their professionalism and delivery speed from design to mass production were impressive.”

BLDC Motor Functional Run Test Device for AIP

Driver Board Case

“This BLDC Motor Drive-Based Functional Test Device is integrated as a core module in our standard motor testing system. Its one-button operation enables non-specialist operators to perform accurate tests, while the stable FOC algorithm reliably detects acoustic anomalies and related faults—together providing an efficient, reliable, and standardized testing solution for automated production lines.”

Benefits

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!

Specs


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
Control & Communication		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

Download full datasheet (PDF)

Applications

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

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Form

MOQ：500-1000 pcs or Negotiable
Lead time：3–5 weeks for custom tuning
OEM/ODM：Yes
Engineering support：Yes（schematic review + parameter tuning）

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About

Manufacturing

A national high-tech enterprise specializing in the research, development, production, and sale of smart motor driver & controllers.

R&D Experience

20+

Years

Total Employee

300+

Person

Area

12,000+

m²

Annual Capacity

10,000,000+

PCS

Production Workshop

Dedicated Smart Motor Driver & Controller Manufacturing Base

Step into our core production zone. Equipped with specialized SMT Clean Rooms and DIP Assembly Workshops, stringent environmental controls and standardized operating procedures ensure the stable output of over 10 million smart controller units annually and maintain consistent foundational quality.

DIP Assembly Workshop

Automation Line 2

Automation Line 1

SMT Clean Room 1

SMT Clean Room 2

Tablet Production Line

Our Partner

Backed by over 20 years of experience from our sister company "Ghonestar Technology" in distributing key electronic components—including MCUs, MOSFETs, IGBTs, IPMs, sensors, and optocouplers—Hunovate has built a resilient supply chain that connects leading international brands with high-quality domestic manufacturers. Through this dual-track procurement strategy, we maintain multiple qualified options for critical components, secure competitive pricing, and gain direct access to manufacturer-level technical support, ensuring high reliability and continuous innovation across our solutions.