Compact DC power supplies

21 November 2001 Test & Measurement

Kikusui's PAS series DC power supplies consist of 15 model variations. The PAS series are sophisticated variable-switching DC power supplies that add to the advances of the company's conventional PAK-A series. While the cabinet size remains unchanged from conventional models, the PAS series incorporates a high-efficiency switching circuit and a power-factor correction circuit.

The new colour scheme features a grey-white base with a front louvre in blue. Models in this series are controlled with a multifunction dial and feature a high-brightness four-digit indication display unit which provide readings down to 10 mV/1 mA, and an output power (W) display function is also provided. The end result is improved operability and visibility.

The PAS Series offers a maximum rated output voltage of 10, 20, 40, 60 and 80 V, in response to changes in the voltage ranges required for margin testing due to the conversion of equipment such as DC-DC converters, batteries, automobile electrical components, and motor-operated tools to high voltage or large capacity formats. This allows the PAS Series to handle tests at 150% of 24 (36 V) or at 150% of 48 (72 V) with capacity to spare.

External analog control functions: constant-voltage/constant-current output control function; output on/off control function; power switch control function (external contact-based or voltage-based power switch off control).

The PAS series employs a high-efficiency switching circuit that inherits its core circuit from the PAK-A series, achieving a power conversion efficiency of 75%. Models in the series incorporate a power-factor correction circuit with a power factor of 0,98 that suppresses higher harmonic currents.

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