PAS395 Datasheet, PDF (2/14 Pages) PULS GmbH – Charger for EDLC Capacitors (Ultra-Caps)

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Functional Description
- The charger is designed to charge EDLC (electrical double layer capacitors commonly
known as Ultracaps, Supercaps or Greencaps) with a constant current – constant voltage
characteristic (float charge mode).
- The charger is suitable to be used in a permanently spinning rotor-hub of a wind turbine.
- The charger is suitable for flange mounting. Any mounting orientation is allowed.
- Most of the heat will be conducted through the base-plate of the charger. A good thermal
connection to the cabinet or an external heatsink can improve the MTBF and life time
expectancy.
- The charger is equipped with an internal fan which turns on when necessary.
- The charger comprises an internal diode in series to the positive output voltage path in
order to protect against back-feeding voltages.
- The input-, output and signal terminals are pluggable. Hot-swap ability is not supported.
- A voltage applied on the inhibit terminal stops the charging mode.
- The charger contains a “Fully-Charged” and an “Output-OK” relay contact.
- A redundant control circuit monitors the end-of-charge voltage and switches the charger
off in case of a too high voltage. After such an event, automatic start attempts occur until
the failure is cleared.
This document is proprietary. Any dispatch or disclosure of content is authorized only after written authorization by PULS GmbH.
All parameters are specified at 400V, 2.5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
Specification: SP-PAS395 Rev: 3.1
Date: 2013/01/19
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