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The Leading Independent Provider of Power Conversion Solutions Since 1963

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High Power Rectifiers and Control Upgrades for Mining Groups Worldwide

Chopper and Thyristor Rectifiers for Mining and Electrowinning

Dynapower is the world’s largest independent manufacturer of chopper and thyristor rectifiers for mining and electrowinning applications. With experience in power conversion since the commercialization of the thyristor, Dynapower has designs that cover all topologies. In addition to Dynapower chopper and thyristor rectifiers for mining, we also maintain exclusive rights for manufacturing and service of all products designed and manufactured by Rapid Power Technologies.

Dynapower’s mining chopper and thyristor rectifiers are engineered, designed, manufactured, and tested to internationally recognized standards including ANSI, IEEE, IEC, NEMA, UL, CSA, and JEC. Our design capabilities include the complete High Power Transformer Rectifier System – inclusive of fully integrated operator interfaces and control systems for a single unit or entire multi-unit SCADA network. With over 50 years of experience in high power conversion, Dynapower evaluates the impact of the rectifier system on the incoming power grid and designs power factor correction and harmonic filtering for the application to maximize system efficiency. Using the latest rectifier technologies, application engineers can recommend the optimum rectifier configuration for any mining project.

Upgrading your high power rectifier system with the latest digital controls is a cost-effective alternative to full system replacement or costly maintenance. Control upgrades can significantly extend the operating life of your existing high power rectifier system and provide improved performance, safety and reliability.



Custom High Power Rectifier Systems dynapower products custom and standard rectifier solutions Thyristor Rectifiers


Dynapower designs and manufacturers high power rectifiers for large applications. These are available in 6, 12, 18 and 24 pulse sets with higher order combined systems available. Each multi-pulse arrangement is in an ANSI configuration that is selected for the voltage/current values of the application. The multi-pulse criteria is selected to reduce the supply side harmonic content, reduce output DC ripple, and provide improved regulation.

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High Power Rectifiers Control Upgrades Thyristor Rectifiers

Control Upgrades

Dynapower recognizes that purchasing new high power rectifiers can be a costly proposition for any  enterprise. That is why we offer control upgrades to legacy high power rectifiers to improve their efficiency, uptime, and extend the life of the rectifier itself. In addition to providing digital control upgrades to Dynapower and Rapid high power rectifiers, Dynapower offers system evaluations and control upgrades for all major manufacturers of high power rectifiers.

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MPS-i125-EHV 350x350

Energy Storage

Dynapower leads the industry with over 500 MWs of commercial and utility-scale energy storage inverters, DC converters and fully-integrated energy storage systems installed worldwide. Our fully-integrated solutions feature Dynapower energy storage inverters coupled with lithium ion batteries in 2, 4 and 6-hour configurations. Energy storage can be implemented with or without solar to reduce energy costs and provide critical backup power.

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Custom High Power Rectifier Systems request a quote Thyristor Rectifiers power conversion
US-Based In-House Engineering
Custom High Power Rectifier Systems Thyristor Rectifiers
In-House US-Based Manufacturing

Experience You Can Trust

We help companies create optimum mining chopper and <a “nofollow” href=”https://www.explainthatstuff.com/how-thyristors-work.html”>thyristor rectifier solutions as well as provide engineering and maintenance services that fuel long lasting and mutually rewarding relationships. We work with our partner customers to understand their needs to not only to deliver on product perfection but also deliver on time – crucial to success in a highly competitive mining market where every day counts.


With the leading uptime in the industry and 24/7 technical phone support, we can have our dedicated of service technicians dispatched at a moment’s notice.

With over 50 years in designing in building all manner of rectifiers, we have the experience and expertise you can trust.

The reliability and efficiency of our rectifiers coupled with our industry leading service make our customers more money in the long term.

We care deeply about solving the world’s most complex power conversion challenges, and providing our customers with the best solution possible.

What Our Customer Partners Say

Samsung SDI is the world leader in Li-ion battery technology, and specifically for stationary energy storage applications, and it is only fitting that we integrate our batteries with Dynapower’s leading inverter technology.

Fabrice Hudry
VP of Energy Storage Solutions
Samsung SDI

This has truly been a great experience for us here at Bosch to work with Dynapower Company. I appreciated how every member of your team was eager to help and really worked together with us to get this project to a success.

Ram Subbaraman
Senior Engineer


The assistance and technical expertise provided by Dynapower has allowed us to accelerate our internal knowledge of energy storage and get us to market faster and in a better position for future energy storage installations.

Josh Castonguay
Chief Innovation Executive
Green Mountain Power

Mining Team

Abdoul Diallo Dynapower Custom High Power Rectifier Systems
Abdoulaye Diallo
International Sales Manager
Pete Abele Dynapower Custom High Power Rectifier Systems
Peter Abele
Sr. Systems Application Sales Engineer
Medina Dynapower Custom High Power Rectifier Systems
Medina Maric
Engineering Manager – High Power Systems

Contact Us

We’re always interested in new mining projects. Please don’t hesitate to get in touch with us for your current or future project needs.

To contact us, please call (802) 860-7200 or

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