IGBT Converters

Insulated-Gate Bipolar Transistor (IGBT) technology provides High Efficiency, significant reduction in Harmonic Distortion (THDi) and can improve the Power Factor to near unity without the use of auxiliary components.

Yonder ofers IGBT-based converters across Active Front End, Active Front End with DC-DC Chopper and DC-DC technology. For kW-scale projects, we also offer SiC-based bidirectional convertors

AC-DC Rectifier
(Active Front End Technology)

Yonder Active Front-End (AFE) converter is designed to convert AC to DC using IGBT technology which employs higher frequency switching. AFE topology reduces harmonic distortion and allows bidirectional power exchange between AC and DC allowing regenerated power to be fed back to the supply (if needed). With already integrated filters, the module will provide smooth DC Voltage to the electrolyser with near unity Power Factor which will ensure minimum electricity consumption.

AC-DC Rectifier
(Active Front-End + Phase Shift Modulation Technology)

Ador offers a two-stage converter system employing a combination of Active Front End (AFE) and Phase Shift Modulation (PSM) technology. The AFE module converts the AC to constant DC voltage and with PSM technology, the constant DC voltage is converted to desired lower DC voltage.

In AFE stage the harmonics is significantly reduced while maintaining near unity power factor without additional harmonic filters and power correction circuitry. In DC-DC stage, the interleaved PSM technology provides a significant reduction in the output ripple.

DC-DC Rectifier
(Phase Shift Modulation Technology)

Ador DC-DC Converter is designed to convert constant DC to variable DC using high frequency IGBT switching. Phase Shift Modulation (PSM) topology is used to operate the DC-DC converter, which offers reduction in the size of output filters.

This system is operated as connections of buck converters operated in parallel. This technology is ideal for direct solar to electrolyser connections. With already integrated filters, the module will provide DC Voltage with minimum ripple which will ensure the smooth operation of hydrogen electrolysers.

30-kW SiC (Silicon Carbide) Based Converters

In SiC technology, Yonder offers

AC-DC

AC-DC converter is a two-stage converter system. In AC-DC module, first stage AFE is used, giving lower harmonics and almost unity power factor. In second stage based DC-DC converter is used to provide low ripple DC output as per customer requirement.

DC-DC

The DC-DC module uses a two-stage conversion system. In the first stage, variable DC is converted to higher fixed DC voltage. In the second stage, the fixed DC voltage is converted to low ripple DC as per specification. For solar to electrolyser DC-DC operations, built-in MPPT functions of the module will transfer maximum power throughout the day.

Yonderh2’s igbt rectifiers are engineered for high power and high-performance applications. Designed with high-frequency switching and advanced control circuits, these rectifiers offer precise voltage waveform control and efficient AC power to DC power conversion. Whether your operation involves green hydrogen production, renewable energy systems, or heavy-duty industrial equipment, Yonderh2 ensures reliable, energy-efficient performance.

What Is an IGBT Rectifier?

An IGBT rectifier is a power conversion device that combines the high-speed switching of MOSFETs with the high voltage and high current handling capabilities of bipolar transistors. These rectifiers convert AC input into clean, stable DC output with exceptional efficiency. The result? Improved output voltage control, reduced power loss, and minimal rectified voltage distortion—key factors in mission-critical power supplies.

Why Choose IGBT Over Traditional Rectifiers?

Compared to older silicon controlled rectifiers (SCRs) or thyristor-based systems, igbt rectifiers offer:

Higher efficiency with reduced AC voltage loss
Compact, modular design for space-saving installation
Better power factor correction
Fast response to load changes
Enhanced control via modern control systems and IGBT control mechanisms

These benefits lead to lower operational costs and greater system reliability.

High-Performance Power Supplies for Diverse Applications

Yonderh2’s igbt rectifiers are specifically designed to support modern AC input and variable load environments. With high-frequency switching, they deliver smooth and controlled DC voltage, making them ideal for:

1. Green Hydrogen Production

igbt rectifiers are critical for powering electrolyzers. Their stable DC output improves hydrogen yield, even under fluctuating AC voltage conditions from renewables.

2. Renewable Energy Systems

They efficiently convert AC from solar panels and wind turbines to DC power suitable for storage or further conversion.

3. Industrial Equipment

Yonderh2’s igbt rectifiers supply steady DC power to motors, drives, and electroplating systems, enabling higher productivity and lower maintenance.

4. Electric Vehicle Charging

Rapid, energy-efficient EV charging relies on igbt rectifiers’ ability to handle high voltage, manage voltage waveform quality, and optimize power factor.

Integrated Technologies for Maximum Output

Yonderh2’s rectifiers are equipped with intelligent control circuits to fine-tune output voltage and current, improving power supply responsiveness. Built-in IGBT control systems ensure accurate and stable DC voltage even under varying loads. These rectifiers are also compatible with SCRs to create hybrid systems tailored for specific applications.

The result: seamless integration with your existing infrastructure—no compromises on reliability or efficiency.

Compact, Scalable, and Future-Proof

Modular architecture supports scalability for large facilities
Compact footprint minimizes space requirements
Designed for harsh, high-load environments
Suitable for both new installations and retrofitting existing systems

Whether you’re building a next-gen electrolyzer plant or upgrading your industrial power supplies, Yonderh2’s igbt rectifiers are built to last.

Supporting the Clean Energy Transition

With growing global pressure to decarbonize, industries need power conversion systems that offer resilience, efficiency, and long-term sustainability. Yonderh2’s igbt rectifiers:

Reduce energy waste by minimizing AC voltage and conversion losses
Offer precise output voltage control for sensitive applications
Support DC power infrastructure with cleaner, more efficient energy
Are key enablers in green hydrogen, solar, wind, and EV ecosystems

Yonderh2’s igbt rectifiers are used across a wide range of industries and applications where stable and efficient DC power is essential. In green hydrogen production, they provide consistent DC output to electrolyzers, enhancing hydrogen yield and reducing energy losses. In renewable energy systems, they efficiently convert AC input from solar panels and wind turbines into steady DC voltage, supporting grid stability and storage. For industrial drives and motors, these rectifiers ensure reliable DC power, reducing equipment wear and downtime. In electric vehicle charging stations, their high-frequency switching and power factor correction allow for fast, efficient charging. Additionally, they’re used in electroplating systems, where ripple-free DC power is critical for coating quality, and in both alkaline and PEM electrolyzers, where they ensure optimal performance through precise voltage control.

Invest in Power Reliability with Yonderh2

Future-proof your power infrastructure with rectification technology that delivers on performance, durability, and sustainability. Yonderh2’s igbt rectifiers offer a perfect combination of control system precision, high voltage performance, and advanced AC to DC power conversion.

Whether you’re navigating the shift to clean energy or enhancing your industrial efficiency, Yonderh2 provides rectifiers built for the future.

Frequently Asked Questions

What is an IGBT Converter?

An Insulated-Gate Bipolar Transistor (IGBT) Converter is a power electronic device that efficiently converts AC to DC power. It offers high efficiency, significantly reduces harmonic distortion (THDi), and can improve the power factor to near unity without the need for auxiliary components.

What types of IGBT-based converters does Yonderh2 offer?

Yonderh2 provides a range of IGBT-based converters, including:

AC-DC Rectifier (Active Front End Technology): Converts AC to DC using high-frequency switching, reducing harmonic distortion and allowing bidirectional power exchange.
AC-DC Rectifier (Active Front-End + Phase Shift Modulation Technology): A two-stage system that first converts AC to constant DC and then to the desired lower DC voltage, maintaining near unity power factor and reducing output ripple.
DC-DC Rectifier (Phase Shift Modulation Technology): Converts constant DC to variable DC with minimal ripple, ideal for direct solar to electrolyser connections.
30-kW SiC (Silicon Carbide) Based Converters: Offers higher temperature operation and reduced unit size due to higher frequency switching capabilities.

How does the Active Front-End (AFE) Technology benefit hydrogen production?

AFE technology reduces harmonic distortion and maintains a near unity power factor without additional harmonic filters or power correction circuitry. This ensures smooth DC voltage supply to electrolysers, minimizing electricity consumption during hydrogen production.

What advantages do SiC-based converters offer over traditional converters?

Silicon Carbide (SiC) based converters operate at higher temperatures and can be switched at higher frequencies, resulting in a more compact unit size. They provide improved performance and efficiency in power conversion applications.

Are Yonderh2's IGBT converters suitable for renewable energy applications?

Yes, Yonderh2’s IGBT converters are designed for various applications, including renewable energy systems. For instance, the DC-DC rectifier with Phase Shift Modulation Technology is ideal for direct solar to electrolyser connections, ensuring efficient power conversion with minimal ripple.

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