Energy Systems > Solar Power Systems > Solar Power Converters
Solar Power Converters
Solar power converters condition and manage electrical power within solar power systems, performing functions such as DC-DC conversion, voltage regulation, and power optimization between generation, storage, and load interfaces. These components support efficient power flow and system stability, allowing onsite solar generation to operate reliably across varying load conditions and operating states.
Solar Converter Types
| Converter Type | Description | Typical Applications |
|---|---|---|
| Buck Converter | Steps down DC voltage to a lower level with high efficiency. | Panel-to-battery interfaces, load voltage regulation |
| Boost Converter | Steps up DC voltage to a higher level to match system requirements. | Low-voltage panels feeding higher-voltage DC bus or inverters |
| Buck-Boost Converter | Can either step up or step down DC voltage depending on conditions. | Maximum Power Point Tracking (MPPT), variable irradiance conditions |
| Isolated DC-DC Converter | Provides galvanic isolation between input and output, often via transformer. | Safety-critical systems, grid-tied solar + storage, microgrids |
| Bi-Directional Converter | Enables power flow in both directions, supporting charging and discharging. | Battery Energy Storage Systems (BESS), vehicle-to-grid (V2G), hybrid systems |
| Resonant / Soft-Switching Converter | Uses resonant circuits for high-frequency, low-loss operation. | High-efficiency utility-scale systems, compact designs |
As solar systems scale, converters play an increasingly important role in system optimization, power electronics integration, and enabling advanced architectures like DC-coupled storage and high-voltage DC (HVDC) transmission. Like inverters, converters are also beginning to adopt wide-bandgap semiconductors such as silicon carbide (SiC) and gallium nitride (GaN), further improving efficiency, density, and reliability.
The following is a list of DC-DC solar power converter manufacturers in the U.S.:
| Vendor | Location |
|---|---|
| AIMS Power, Inc. | Reno, NV |
| AM Power Systems, Inc | Hot Springs, SD |
| American Superconductor | Ayer, MA |
| Ampt, LLC | Fort Collins, CO |
| eiQ Energy, Inc. | Santa Clara, CA |
| Exeltech | Fort Worth, TX |
| Imagine Instruments LLC | Georgetown, TX |
| IOTA Engineering, LLC | Tucson, AZ |
| Polarity, Inc. | Rancho Cordova, CA |
| Power Integrations, Inc. | San Jose, CA |
| QEED USA | Jupiter, FL |
| RICH SOLAR | Ontario, CA |
| Triad Magnetics | Perris, CA |
| Unipower LLC | Coral Springs, FL |