Compact Multi-Output DC Power Supply PMX-Multi Series

Each output is isolated. Simple series/parallel connection between channels. 200W Output Capacity. Three models with 2, 3 and 4 outputs.

The PMX-Multi series is a multi-channel DC power supply with isolated outputs on each channel. The PMX32-3DU (2ch), PMX32-3TR (3ch), and PMX32-2QU (4ch) are all capable of simultaneous output in all channels and come with an output tracking feature. Also, channels 1 & 2 of each model can be easily connected in either series or parallel to increase the output voltage/current at the press of a button. LAN (LXI Compliant), USB, and RS232C are included as standard digital interfaces for easy system integration. The PMX-Multi benefits from a low noise, series regulator design that makes this series the perfect choice for experiments involving transistors, IC circuits, and op amp circuits as well as R&D and production line applications.

Features

SpecificationsOutputRippleLine RegulationLoad RegulationInputWeight
ModelCHCVCCCVCCCVCCCVCCACPowerApprox
PMX32-3DU132.000V3.000A500μV1mA3mV0.01% + 0.25mA4mV5mA217Vac * ± 10 %700VA13 kg
(28.66 lb)
232.000V3.000A1mA3mV4mV
PMX32-3TR132.000V3.000A1mA3mV4mV900VA
232.000V3.000A1mA3mV4mV
36.000V5.000A2mA1mV5mV
PMX32-2QU132.000V2.000A1mA3mV2mV800VA
232.000V2.000A1mA3mV2mV
318.000V2.500A1mA3mV3mV
418.000V2.500A1mA1mV3mV

* 100 Vac, 117 Vac, 200 Vac and 234 Vac are factory options.

Simple Series/Parallel Connection Between Channels

Series Operation

CH1 and CH2 can be connected in series to increase the overall voltage output range. CH2 operates as master and CH1 as slave. The total output voltage will be the sum of CH1 and CH2.

Series Operation

Parallel Operation

CH1 and CH2 can beconnected in parallel to increase the overall current range. CH2 operates as master and CH1 as slave. The total output current will be the sum of CH1 and CH2.

Parallel Operation

Tracking Feature

The tracking feature allows the operator to control the ratio for increase/decrease of output among multiple channels within the power rating. This feature can be used freely among all channels with two ratio options:absolute value variation and variation ratio.

Absolute Value Variation

This mode allows for voltage/current settings in all specified channels to change at the same rate as a selected channel.

Variation Ratio

This mode allows for voltage/current settings in all specified channels to change in equal proportion to a selected voltage or current rating.

*The variable range is from 0.0% to 200.0%

Example of operation of tracking feature: PMX32-2QU

When you turn the rotary knob during tracking operation, the outputs change at the same percentage as the preset output percentage (b/a). b/a = d/c This proportional expression is satisfied.

Example when the voltage is changed within the rated output

Example when the voltage is changed above the maximum settable output

Delay Function

The optional setting creates a programmable delay between the OUTPUT switch being activated and the actual output being released. The setting range for DELAY TIME is from 0.1 – 99.9 seconds. When power supplies are not activated properly, there is the slight risk of damage being caused to the overall system. For this reason ON delay control is a very important feature that is required for power source output. This feature is also necessary when turning output OFF, and is highly convenient for operating circuits.

Timing chart of delay function

Note: The actual rise/fall time with output off will vary depending on the output and load conditions. Note that the timing chart above ignores rise and fall time. There are cases where the actual delay time varies by a few tens of milliseconds even when the delay time is set to 0 seconds.

Easy Access with the Built-in Web Server

Use a browser from a PC, smartphone, or tablet to access the web server built into the PMX-Multi series for convenient control and monitoring.

Recommended browser
  • Requires for the Internet Explorer version 9.0 or later
  • Requires for the firefox 8.0 or later
  • Requires for the safari / mobile Safari 5.1 or later
  • Requires for the Chrome 15.0 or later
  • Requires for the Opera 11.0 or later

*Connecting with a smartphone, tablet, etc. requires a Wi-Fi environment (wireless LAN router etc.).

Easy Access with the Built-in Web Server

Rear Panel

LAN (LXI Compliant)/USB/RS232C standard interface

 standard interface

Turning output on and off using an external contact

Turning output on and off using an external contact

Product line-up

Options

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