• PRKT series | DC power supply Rackmount | Matsusada Precision
  • PRKT series | DC power supply Rackmount | Matsusada Precision

Programmable Turbo DC Power Supply

  • Max voltage: 80V to 900V
  • Max current: 16.7A to 170A
  • Max power: 5kW
  • Monitoring controlling web server

Constant Power Output for 3 Times Multi-range (V&I) Operation

PRKT series is a DC power supply equipped with a turbo function, enabling a wide range of voltage/current three times higher than previous DC power supplies with approximately the same rated output power.

The PRKT series all allows flexible voltage and current output within its rated power, resulting in users not to require to search for a power supply with unnecessary wider rated voltage and current. Thus single PRKT unit can be used for much wider user applications.

Not only it's a wide range of output, but the general performance of the power supply is pursued to achieve overwhelming quality, providing a power factor correction circuit with 0.99 power factor, a color display panel having excellent visibility and adoption of the speedy and excellent precision rotary encoder.


  • Equipped with a turbo function to achieve a wide range of output
  • CV/CC priority setting function enables suppression of overshoot by setting the voltage/current rise sequence when output is turned ON
  • Variable internal resistance function enables simple simulation of rechargeable batteries, photovoltaic cells, fuel cells, etc.
  • The sink current suppression is used to reduce the reverse current flowing from the load to the unit in order to prevent a voltage drop on the load as the output is OFF or the set voltage is lowered.
  • Ideal for research & development with its low-noise switching method


Device evaluation
Devices with different rated value
Evaluation and charging of rechargeable batteries
Evaluation testing and charging of batteries and capacitors, etc.
Evaluation testing of communications equipment
Various testing of Sever and Rooter
Evaluation of power conditioner (Solar inverter)
Simulation of photovoltaic cells and fuel cells


Model Maximum output
Voltage [V] Current [A] Power [kW]
PRKT80V170A5kW 80 170 5
PRKT300V50A5kW 300 50 5
PRKT500V30A5kW 500 30 5
PRKT900V16.7A5kW 900 16.7 5


Output Range Graphs

With the turbo function, wide range of voltage and current output compared to conventional DC power supplies.


When output voltage is 80V, ouput current is 62.5A.


When output voltage is 300V, ouput current is 16.7A.


When output voltage is 500V, ouput current is 10A.


When output voltage is 900V, ouput current is 5.6A.

Automated Test Function
MSS (Matsusada Sequence Software)

Easy to use for beginners

With MSS, the dedicated software, you can create test program data using computer.
The software makes it easier and more convenient to create test program data.
The created test program data can be saved to USB memory, and up to 1,024 steps of the test program can be loaded.

Operation log display
MLV (Matsusada Log Viewer)

Instant graphing of operation logs

Operation log display function: MLV, the dedicated software can read and graph the operation log.
Logging to USB memory is available not only during the sequence operation as described in (1) above, but also during the local/external control.

Easy editing of operation logs

MLV can select items you need and save them in CSV format, so you can also edit the data in spreadsheet software with no problem.

Operating log Image
the attached software image
[Display items]
  • Elapsed time
  • CC/CV mode
  • Output value (voltage, current, power)
  • Status
  • Error

Supports Expansion with MASTER/SLAVE Control

Wide range output with parallel connections up to 4 units.

Connection Diagram

The example to connect to one MASTER and three SLAVE units
A legend of MASTER/SLAVE connection image

* Dedicated cable for master-slave connection is available. We offer the set of a parallel control cable and a cable with attached shared terminal. refer to "Master/Slave control cable" in the datasheet below.

  • Expandable to a total of four MASTER and SLAVE units.
  • During MASTER/SLAVE connections, values of output voltage/current for the overall unit are displayed on the output voltage/current meter of the MASTER. (Individual output values are not displayed on the output voltage/current meter of each SLAVE.)

Note: Make sure to use the same length of all the cables to connect to each load from the main unit.

Preset Memory Function

With the preset memory function, the preset values are automatically saved when turning power off. Furthermore, up to three different voltage, current, and power settings are also memorized respectively.

CV/CC Priority Setting Function

CV (constant voltage) priority/CC (constant current) priority modes can be selected and set. As is the case with diodes, a load tends to suddenly change the resistance at certain points. When the device is started in CV mode, the current will be momentary overshot.
Using the PRKT series, the occurrence of overshoot can be suppressed by selecting CC priority mode. The function can reduce the risk of damaging expensive loads such as high-power laser diodes.

CV priority mode

CV priority mode

CC priority mode

Always starts in CC

* Overshoot is less likely to occur as the CC value is set to the lowest in the range where the CC state can keep not by releasing the voltage setting even in the CC priority mode.

Internal Resistance Variation Function (during CV mode)

A value set to the causes a voltage drop when the load current flows. Batteries, photovoltaic cells, and fuel cells can be simulated. (The setting range of the internal resistance value is from 0 Ω to the rated voltage/rated current.)

a graph of internal resistance

Sink Current Suppression

When supplying power to loads with capacities like batteries and capacitors, the sink current suppression is used to reduce the reverse current flowing from the load to the unit in order to prevent a voltage drop on the load as the output is OFF or the set voltage is lowered.

Sink Current

Note: Reverse current cannot be controlled and stabilized. Connect a dummy resistor or reverse current prevention diode when load of the reverse voltage is equal to or higher than the rated voltage (inductive loads, regenerative motors, etc.).

Two-mode Lock Function

The lock function is available with the two modes: "Full" to lock all front panel operations, and "Normal" to lock all operations except the ON/OFF switch.

Rack Mount DC Power Supplies PRKT | lock | Matsusada Precision *In both “Full” and “Normal” modes, Emergency stop is enabled with the POWER ON/OFF switch
“Password Function” a new protection using password along with “Two-mode Lock Function” New

In this function, to cancel the two-mode lock function, input a 4-digit PIN code. (Enable/Disable is selectable.)

Rack Mount DC Power Supplies PRKT | lock | Matsusada Precision

For details, download the datasheet.


For details, download the datasheet below.


-LCa: CAN interface board*

Using CAN communications, output controlling and operation status monitoring of these devices can be performed.

-LGob: Optical interface board*

  • -LGob: Optical interface board + optical cable 2 meters
  • -LGob(Fc5): Optical interface board + optical cable 5 meters
  • -LGob(Fc10): Optical interface board + optical cable 10 meters
  • -LGob(Fc20): Optical interface board + optical cable 20 meters
  • -LGob(Fc40): Optical interface board + optical cable 40 meters

With optical communication, isolation control is performed. As complete isolation is performed by means of optical fiber, this enables advance prevention of erroneous operation involved with transient phenomenon caused by surges, inductive lightning, external noise, etc.

The optical communication adapter at the control side should be purchased separately.
  • for LAN: CO-E32
  • for USB: USB-OPT
  • for RS-232C: CO-OPT2-25, CO-OPT2-9
  • for RS-485: CO-OPT4-25
  • for GPIB: CO-G32

-LRs: RS-232C/RS-485 interface board*

Using RS-232C/RS-485 communications, output controlling and operation status monitoring of these devices can be performed.

Furthermore, Modbus communications are available via RC-232C/RS-485. Contact our sales representative for details.

* Selecting each individual option simultaneously in -LCa, -LGob, and -LRs is not allowed.

How to Order

When ordering, add Option No. in the following order by alphabet, and number to Model No.
  • PRKT80V170A5kW-LGob(Fc5)
  • PRKT500V30A5kW-LRs


AC input cable


Cable length: 2.5 m
(Contact our sales representatives if you would like to extend the cable length.)

* In accordance with the local electrical code, there might be a possibility that a breaker is required between the main unit and the power supply system.
If the PRT series will be used in Europe, be sure to contact our sales representatives.

Master/slave control cable

This is a cable with a shared terminal attached (refer to right picture) and a parallel control cable (refer to P. 04) set. The length of each cable from the terminal to the terminal is approximately 1.5 meters. Therefore, when connecting two PRKT, the length is about 1.5 meters, and when connecting three PRKT, the length is about three meters.
When placing an order, please put a number from two to four in □.
For example, if two PRKT are to be connected as master/slave, two will be entered, and if four PRKT are to be connected as master/slave, four will be entered.


For details, download the datasheet below.


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