Benchtop DC power supplies (linear regulator type)

Linear regulator benchtop DC power supplies rely on relatively simple circuits to convert an AC input into a DC output at a precise voltage. The linear regulator power supplies rely on a power transformer for voltage conversion, diodes for rectification (AC to DC conversion), and linear voltage regulators (and a feedback loop) that ensure that a consistent DC output is generated by the supply. These types of supplies tend to generate a lot of heat energy, so all Matsusada linear regulator power supplies are built for proper heat dissipation. The main benefit of linear regulator Benchtop DC power supplies is minimal ripple and noise in the output signal, making them ideal for sensitive operations where ultra-low noise signals are required. The relatively simple design combined with Matsusada's exceptional engineering makes these supplies both reliable and flexible.

Matsusada offers two lines of high-accuracy linear regulator benchtop DC power supplies:

• The high-power and high-resolution R4G/R4GN series have maximum output power ranging from 12 W to 180 W, making its operations scalable in several use cases. These supplies have both negative common and positive common variants. They offer high resolution, allowing for precise noise-free output control.

• The low-power, lightweight (for a linear regulator), programmable R4GT series has maximum output power between 0.1 W and 7.2 W. The power supplies offer precise control over output current (in the factor of 10 μA), and the pulse and ramp action is a default feature.

The high-accuracy linear regulator DC power supplies are far less sophisticated compared to switching power supplies, and simpler circuits may also come with reduced costs. However, since they have to accommodate for heat dissipation since all the excess power between input and output is expelled as heat, they may have a larger form factor (for better ventilation) and additional cooling elements like heatsinks and fans. However, built-in fans are usually required for higher-power linear regulator supplies (over 108 W), and smaller ones can be quieter. The most significant electrical characteristics are its lack of noise in the output power and fast response, which makes it ideal for sensitive analog and RF circuits, biomedical instruments, precision-voltage reference, and other industrial, laboratory, testing, and research applications.
The benchtop linear regulator power supplies are designed to be placed on any flat surface without the need for mechanical anchoring or support.

series	R4GT	R4G	R4GN
Output power	0.1 to 7.2W	12 to 180 W	12 to 180 W
Output current	0.01 to 0.2A	0.1 to 10 A	0.3 to 10 A
0 to 10V	6V, 10V	6V, 8V	6V, 8V
11 to 20V	18V	18V	18V
21 to 40V	36V	36V	36V
41 to 50V		45V	45V
51 to 60V		60V	60V
61 to 80V		80V	80V
81 to 120V		120V	120V
121 to 160V		160V
161 to 250V		250V
251 to 360V		360V
361 to 650V		650V
Total models
Indicator of meter	4 digit	4 digit	4 digit
Sequence control	(Option)	Unavailable	Unavailable
Analog control
Communication	(Available by Option or Adapter)	(Available by Option or Adapter)	(Available by Option or Adapter)
Features	Micro current control in units of 10μA minimum	Ultra-low ripple, Multiple functions	Ultra-low ripple, Multiple functions
series	R4GT	R4G	R4GN

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