DC Power Supplies
DC power supplies are precision instruments that convert AC power from a wall outlet into a stable, regulated DC output. Also known as AC-DC power supplies, programmable DC power supplies, or benchtop power supplies, these devices are essential for providing the precise voltage or current required for sensitive electronic components. Depending on the application's requirements, they are broadly classified into two main topologies: linear power supplies and switching power supplies. While linear power supplies are prized for their ultra-low noise and high precision, switching power supplies offer superior energy efficiency and higher power density. Choosing between linear and switching technologies depends on whether your priority is absolute signal purity or compact, high-efficiency power delivery. For details, please refer to "What is the DC power supply? (Basic Knowledge)".
Matsusada Precision offers high-performance DC power supplies and bidirectional (regenerative) power supplies engineered for high reliability, low-noise performance, and high power density.
Our comprehensive lineup ranges from ultra-compact precision benchtop models to high-power rackmount and cabinet systems. From this page, you can access our full range of products and search for the DC power supply that best suits your application. If our standard products do not meet your specifications, we offer custom solutions to accelerate your development process.
Our lineup includes the ultra-compact R4K-36 series, featuring our proprietary high-efficiency switching technology. We also offer the R4G series (linear type) for ultra-low ripple performance and the PRTM series for high-power applications up to 120 kW. For automotive testing, the PBR series bidirectional power supplies are ideal for evaluating PCUs, ECUs, and inverters. We provide a wide variety of programmable solutions, including high-precision reference voltage generators.
Our programmable DC power supplies serve research institutes and industrial facilities worldwide. Common applications include energy/environment, vehicles/aerospace, Semiconductors (Process control, Burn-in), bio/medical, analytical instruments, electronics, and industry. Matsusada Precision's high-quality and reliable DC power supplies can easily satisfy the requirements of your OEM or laboratory applications.
Matsusada Precision classifies power supplies that generate voltages in excess of 1000 V (1 kV) as high-voltage power supplies. If you need a higher voltage, please refer to the page on high voltage power supplies.
Safety and reliability are at the core of Matsusada Precision’s engineering. To protect both the operator and the device under test (DUT), our DC power supplies are equipped with advanced protection features, including robust **short circuit** protection and over-voltage protection, ensuring stable operation even in demanding industrial or laboratory environments.
