What is a Power Supply? |Tech | Matsusada Precision

Published: 2018-11-06, M.P. / Updated: 2026-02-25, T.N.

Matsusada Precision offers a comprehensive range of power supply solutions, engineered in Japan for high reliability and performance.

Our power supplies are categorized into three main families based on output characteristics. Programmable DC power supplies provide low-voltage outputs typically used for R&D and component testing. For applications requiring kilovolts to tens of kilovolts, we offer high-voltage power supplies in both benchtop and module configurations. Additionally, our AC power sources and high-voltage amplifiers support systems requiring AC or amplified signal outputs.
Recently, demand has grown for bidirectional power supplies capable of both sourcing and sinking power, making them ideal for battery charge/discharge cycling and regenerative energy testing.

AC power sources and bipolar power supplies / high-voltage amplifiers are essential for testing devices driven by AC mains or requiring complex waveforms. Furthermore, precise high-voltage output is critical for controlling electron beam behavior in advanced equipment such as electron microscopes, X-ray inspection systems, and optical communication devices. Our high-voltage power supplies are engineered to generate these stable electric fields.

In research and development, precise regulation of voltage and current is essential. DC power supplies that maintain stable output levels despite load fluctuations are known as "stabilized" or "regulated" DC power supplies. Variable output models are often referred to as programmable power supplies.

Our experienced staff will answer any inquiries you may have regarding intended use and desired specifications.

Please contact us via the Contact page. Our staff will be happy to answer all of your questions.

Product Classifications

Classification	Features
Programmable DC power supply	Output voltage: Typically up to 1000 V. Includes models with output power exceeding 120 kW. Suitable for a wide range of applications, from compact units for circuit testing to high-power models for industrial production lines.
High voltage power supply (stationary type) High voltage power supply (module type)	Output voltage: Exceeds 1 kV (Standard models up to 150 kV). Available in benchtop and module configurations. Custom configurations are available to meet specific integration and performance requirements.
AC power source Bipolar power supply / Power amplifier	Products providing AC output voltage. This category includes AC sources, bipolar power supplies, and power amplifiers for varying waveform requirements.
Bidirectional DC Power Supply	Integrates both source (output) and sink (absorption) capabilities. Ideal for battery testing, motor evaluation, and regenerative energy simulation. Features high efficiency and energy recycling capabilities.