3 KW Single-Phase PFC Digital Power Supply Module

High-Power-Factor AC-DC Conversion for Motor Drives and HVAC Systems

3 KW Single-Phase PFC Digital Power Supply Module

Overview

Parameters

Resources

Overview

3 kW Single-Phase Digital PFC Front-End Rectifier Module

The 3 kW Single-Phase Digital PFC Module is a high-efficiency active rectifier designed to convert AC 90 – 264 V into a stable DC 400 V bus.
Using bridgeless Totem-Pole PFC topology with GaN / SiC devices, it achieves up to 98 % efficiency and PF > 0.99, delivering ultra-clean power for industrial motor drives, HVAC compressors, and energy-storage systems.

⚙️ Applications

– Single-phase high-power motor drives, servo systems, and VFDs
– HVAC and heat-pump AC-DC front-end converters
– Photovoltaic / energy-storage inverter systems (ESS front-end)
– UPS systems and industrial control power supplies
– Industrial test power supplies and digital-power training platforms

💡 Core Technologies

• Bridgeless Totem-Pole PFC Topology — ultra-high efficiency and low THD (< 3 %).
• Digital DSP Control — fast current-loop response < 2 ms, stable bus regulation.
• GaN / SiC Power Devices — higher switching speed, lower loss, smaller size.
• Universal Input AC 90 – 264 V — worldwide grid compatibility.
• Smart Communication: Wi-Fi / RS-485 (Modbus RTU) / TTL.
• Comprehensive Protections: OVP, UVP, OCP, OTP, SCP, overload.
• Optional Bidirectional Power Flow (DC ↔ AC) for regenerative energy feedback.

🔰 Why Choose Our 3 kW PFC Module
✅ Compact design: 200 × 150 × 40 mm footprint for easy OEM integration.
✅ Energy savings: 97 – 98 % conversion efficiency reduces heat and power loss.
✅ Flexible cooling options: air or liquid cooling for different system layouts.
✅ OEM-ready: easily customized bus voltage, interface, and thermal design.
✅ Industrial-grade reliability: MTBF > 150 000 h, proven in continuous operation.
✅ Perfect for HVAC, industrial automation and ESS manufacturers seeking high-power-factor front-end solutions.

📩 Get a Quote or OEM Service

Partner with an experienced PFC and motor-drive solution manufacturer.
Contact us for datasheets, pricing, samples, or OEM/ODM customization of your AC-DC front-end power modules.
👉 Email us today to discuss your motor drive, HVAC or energy storage project!

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Parameters


Category	Parameter	Specification / Description
AC → DC (PFC Mode)	Input Voltage Range	AC 90 – 264 V (single-phase)
		Frequency Range	47 – 63 Hz
		Rated Input Power	3.0 kW
		Power Factor	> 0.99 (@ 230 V full load)
		Efficiency (Typ.)	97 % (@ 230 V, 50 % load)
		Total Harmonic Distortion	< 3 % (Compliant with EN 61000-3-2 Class A)
		Output Voltage	DC 400 V ± 1 %
		Output Current	7.5 A continuous, 8.5 A peak / 10 s
DC → AC (Inverter Mode, Optional)	Input Voltage Range	DC 360 – 430 V
		Rated Power	3.0 kW continuous, 3.3 kW peak / 10 s
		Output Voltage	AC 220 V ± 2 %
		Output Frequency	50 / 60 Hz ± 0.1 %
		Efficiency	94 % (typical)
		THD	< 3 % (linear load)
Protection Functions	AC UVP / OVP	Trip at 85 V / 280 V
		DC UVP / OVP	Trip at 350 V / 450 V
		Over-current	110 % limiting → 120 % × 60 s shutdown
		Short-circuit	Hardware fast shutdown < 1 ms
		Over-temperature	Derating at 85 °C / shutdown at 95 °C
Control & Communication	Interface	Wi-Fi, RS-485 (Modbus RTU), TTL
Control & Communication		Control Algorithm	Dual-loop digital PFC control, current-loop < 10 ms
Mechanical & Environmental	Operating Temperature	−20 °C ~ +50 °C (derate > 50 °C to 70 °C)
		Protection Level	Board IP20 / System recommended IP54
		Dimensions	200 × 150 × 40 mm
		Weight	≈ 1.2 kg
		MTBF	> 150 000 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

3 KW Single-Phase PFC Digital Power Supply Module

Datasheet Block Diagram

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