Pdm Bidirectional Power Module - Multi-Unit Parallel Operation

Basic Information

Output Power

>1000W

Grid Type

off-Grid Inverter

Output Type

Dual

Circuit Topologies

Push-Pull Type

Wave String

Square Wave Inverter

Type

DC/AC Inverters

Isolation

High Frequency

Efficiency Max

>92.5%

Dimensions

142*47*335mm

Origin

China

Product Overview

⚙️

PDM low-voltage/medium-voltage AC-DC bidirectional power supply module adopts advanced soft-switching control technology and current equalization technology. It realizes bidirectional conversion of AC/DC energy for single-phase and three-phase systems, maintaining zero line current demand even in balanced configurations.

This series features low harmonics, low power consumption, high power density, and flexible matching, ensuring reliability even when the system is unbalanced. The fast charging/discharging conversion makes it ideal for high-performance industrial applications.

Functional Features

Adaptable to three-phase or single-phase systems
High power factor >0.99, low THDi < 2.5%
Bi-directional soft-switching (Efficiency up to 95%)
Fast switching between charging and discharging
High grid adaptability and stability
Long-term operation at 40°C with full load
Modular design for wired/wireless parallel connection
Conforms to CCC, CE and international standards

Suitable Scenes

Single-cell battery formation/dividing equipment
Battery module aging and testing equipment
Power supply aging testing
Welding machine power aging
Bi-directional testing of power equipment

Technical Specifications

Model		PDM-14V3K2W-S	PDM-48V3K3W-S	PDM-80V3K3W-S	PDM-130V3K3W-S	PDM-190V3K3W-S	PDM-375V3K3W-S
AC I/O	Max Power	3280W	3360W	3360W	3360W	3360W	3360W
	Voltage Range	185 ~ 252Vac
	Frequency	50/60±5Hz Adaptation
Charge Mode	Rated Voltage	14Vdc	48Vdc	80Vdc	130Vdc	190Vdc	375Vdc
Charge Mode	Efficiency Max	92.7%	94.0%	94.5%	94.5%	95.0%	95.0%
Discharge Mode	Rated Input	2700W
Discharge Mode	Efficiency Max	91.5%	92.5%	93.0%	93.0%	93.5%	93.5%

Important Remarks

ℹ️

1. Maximum Output: Instantaneous capacity only, not for continuous long-term operation.
2. Customization: EPO function available for external shutdown control to save standby power.
3. Parallel Use: No limit on parallel operation; consistent line lengths or busbars recommended for flow equalization.
4. Environment: 10% derating applies when ambient temperature is between 40-45°C.
5. Airflow: Default is front-to-back; back-to-front adjustment available for units >48V DC.

Company Overview

With over 30 years of history, the company is a professional supplier of power products. Supported by a robust R&D, production, and marketing team, we provide a modern quality management system for both standard and customized OEM/ODM orders.