Top 7 Bidirectional AC-DC Converter Suppliers

As the energy landscape shifts towards electrification and renewable integration, power conversion technologies gain importance. A critical component is the bidirectional AC-DC converter, which converts alternating current (AC) to direct current (DC) and vice versa. These converters are vital for applications like electric vehicles (EVs), renewable energy systems (solar and wind), energy storage, and grid-tied systems.

Unlike traditional converters, bidirectional AC-DC converters enable energy to flow both ways, crucial for charging and discharging batteries, feeding excess energy back into the grid, and enhancing efficiency in microgrids and smart infrastructure.

Selecting the right bidirectional AC-DC converter supplier impacts the performance, reliability, and cost-effectiveness of your power systems. This blog lists the top 7 suppliers based on product variety, technological innovation, market presence, and customer satisfaction.

Whether designing an EV charging station or a renewable-powered microgrid, this guide helps you find a supplier that meets your project needs.

Criteria for Selection

Before diving into the top suppliers, here’s a look at the selection criteria used to evaluate them:

Market Reputation and Presence

Suppliers with a strong global footprint and a well-established reputation in power conversion technologies were prioritized.

Product Range

Companies offering a diverse portfolio of bidirectional AC-DC converters for various power levels and applications stood out.

Technological Innovation

Preference was given to suppliers who implemented cutting-edge technologies, such as Silicon Carbide (SiC), for greater efficiency, compact design, and reliability.

Customer Reviews and Reliability

Feedback from actual users, after-sales support quality, and long-term product reliability played a key role in the selection.

Top Suppliers of Bidirectional AC-DC Converters

1. TDK-Lambda

A globally recognized leader in the power electronics space, TDK-Lambda has built a reputation for delivering high-efficiency, reliable solutions for a variety of industrial and energy applications.

Key Products:

TDK-Lambda’s bidirectional AC-DC converters are part of a broader custom portfolio tailored for energy storage and renewable energy systems.

Strengths:

• Efficiency >92%

• Digital control for adaptive performance

• Ideal for renewable energy integration and energy storage systems

• Strong global support and service network

Why Choose TDK-Lambda?

If you're looking for a proven, reputable bidirectional AC-DC converter supplier with flexible design options, TDK-Lambda is a solid choice.

2. Infypower

Based in China, Infypower is quickly becoming a significant player in the power electronics market, known for its cost-effective and performance-focused solutions.

Key Products:

Infypower offers bidirectional AC-DC converters primarily for EV charging and grid-tied energy storage systems.

Strengths:

• High efficiency

• Competitive pricing

• Responsive after-sales service

• Strong focus on R&D for modern energy applications

Why Choose Infypower?

Infypower is perfect for budget-conscious projects that still require high-performing and scalable solutions in EV or grid-tied systems.

SCU (Shenzhen Sicon)

SCU is a specialist in battery energy storage systems, offering modular and scalable bidirectional AC-DC converters that cater to high-power applications.

Key Products:

Their converters support power ranges from 300kW to 600kW, making them ideal for utility-scale storage and industrial applications.

Strengths:

• Efficiency up to 98.5%

• Modular design for scalability

• Seamless integration with Energy Management Systems (EMS)

• High reliability under heavy loads

Why Choose SCU?

SCU is an excellent choice for large-scale energy storage setups requiring high power density and grid responsiveness.

Advantics

Known for innovation in high-efficiency power conversion, Advantics focuses on solutions that utilize SiC (Silicon Carbide) technology for optimal performance.

Key Products

Advantics’ MCP-25 series supports up to 500 kW and boasts efficiency levels of up to 99%, positioning it among the most efficient on the market.

Strengths:

• State-of-the-art SiC technology

• Highly scalable system architecture

• Focused on EV charging, battery storage, and smart grid applications

Why Choose Advantics?

If energy efficiency is your top priority, Advantics offers future-proof solutions designed to reduce losses and maximize output.

Honle Group

Honle Group develops advanced solutions for microgrids, renewable integration, and voltage regulation, with a strong emphasis on grid compatibility and power quality.

Key Products:

Their HPSC series features a three-level bidirectional conversion topology, ideal for microgrids and hybrid systems.

Strengths:

• High operational efficiency

• Improves power quality and grid stability

• Suitable for hybrid microgrid systems

Why Choose Honle Group?

Choose Honle if your project involves complex grid interactions, such as hybrid systems or rural microgrids that require stable voltage regulation.

RECOM

RECOM has extensive expertise in developing compact, high-power bidirectional converters tailored for both commercial and industrial needs.

Key Products:

Their bidirectional converters (starting from 10kW) are designed with flexibility in mind, perfect for EV charging and energy storage solutions.

Strengths:

• High-performance engineering

• Deep technical consulting and support

• Custom design services available

Why Choose RECOM?

For projects that require custom solutions and engineering support, RECOM offers robust design flexibility and reliable hardware.

Yewsun

Xiamen Yewsun Technology Co., Ltd. is a rising name in power electronics, offering affordable and technically advanced solutions for global markets.

Key Products:

Yewsun produces bidirectional AC-DC converters for EVs, energy storage, and industrial systems with DSP control and resonant soft switching.

Strengths:

• Cost-effective solutions

• Advanced digital control for stability

• Serves multiple sectors with international reach

Why Choose Yewsun?

Yewsun strikes an outstanding balance between affordability and advanced performance, ideal for mid-scale industrial and commercial installations.

Comparison of Suppliers

1. TDK-Lambda

• Power Range: Custom/Varies

• Efficiency: >92%

• Applications: Renewable energy systems, energy storage

• Special Features:

  • Digital control for optimized performance

  • Flexible system design adaptable to multiple industries

• Best For: Versatile deployment across energy-related sectors

2. Infypower

• Power Range: Varies

• Efficiency: High

• Applications: EV charging infrastructure, grid-tied power systems

• Special Features:

  • Competitive pricing model

  • Strong after-sales support and service

• Best For: Cost-effective, high-performance DC-DC conversion

3. SCU (Smart Charging Unit)

• Power Range: 300kW–600kW

• Efficiency: 98.5%

• Applications: Large-scale battery energy storage systems (BESS)

• Special Features:

  • Modular design for scalability

  • Compatibility with Energy Management Systems (EMS)

• Best For: High-capacity energy storage deployments

4. Advantics

• Power Range: Up to 500kW

• Efficiency: Up to 99%

• Applications: EV charging, battery storage systems

• Special Features:

  • Utilizes advanced Silicon Carbide (SiC) technology

  • Highly scalable to match various system needs

• Best For: High-efficiency EV charging solutions

5. Honle Group

• Power Range: Varies

• Efficiency: High

• Applications: Microgrids, renewable energy integration

• Special Features:

  • Three-level topology for enhanced power quality

  • Designed for grid stability and voltage regulation

• Best For: Utility-grade and microgrid applications

6. RECOM

• Power Range: 10kW+

• Efficiency: High

• Applications: EV charging stations, energy storage systems

• Special Features:

  • Custom engineering solutions

  • Strong technical expertise and customer support

• Best For: Tailored DC-DC converter solutions for EV infrastructure

7. Yewsun

• Power Range: Varies

• Efficiency: High

• Applications: EV systems, industrial energy storage, renewable setups

• Special Features:

  • Digital Signal Processor (DSP) control

  • Soft switching technology for increased reliability

  • Affordably priced for broad adoption

• Best For: Flexible, cost-conscious energy systems

Comparison Notes:

• For EV Charging: Advantics, RECOM, and Yewsun lead with efficiency and flexibility.

• For Energy Storage: SCU and Honle offer robust solutions for high-capacity storage.

• For Versatility: TDK-Lambda, Infypower, and Yewsun provide adaptable systems for diverse needs.

Conclusion

As the demand for sustainable energy and high-efficiency systems continues to rise, selecting the right bidirectional AC-DC converter supplier is crucial for ensuring long-term performance, reliability, and cost-efficiency. TDK-Lambda and Infypower offer versatile, scalable solutions suitable for a wide range of applications. SCU and Advantics excel in delivering high-power, high-efficiency systems, making them ideal for demanding energy storage or EV charging projects. Honle Group is a standout for grid stability and hybrid applications, especially in microgrid environments. RECOM is known for its deep technical expertise and custom engineering support, making it a top choice for tailored solutions. Meanwhile, Yewsun balances affordability with innovation, providing cost-effective, feature-rich converters. For high-power needs, SCU and Advantics are recommended. For budget-conscious projects, Infypower and Yewsun are excellent choices. And for specialized requirements, RECOM delivers exceptional value. Ultimately, aligning your choice with your project’s unique goals ensures the maximum return on investment (ROI) and sustainable performance.