Crest CRE57091 User Manual

CREST ELECTRONICS

www.crest-electronics.net

[e-mail]

P. #. 201-565-6069

Fax-973-732-1410

CRE57091 PWC-LINEAR BOARD

The PWC to Linear board is design to completely removes the PWC / PWM waveform from the Super
Base Station CRE57005SD/SS so that it supply truly Linear power. This unit solve any problems
associated with equipment that does not work well or at all with PWC / PWM power.

The PWC / Linear board l is about 3 1/4 “ L and 1 1/4” W

POWER IN

NOT USE

POWER IN

Fig 1

The PWC / Linear board is 1 I/2” H

Fig 2

POWER TO
TRACK

This unit have screw terminals, on one end has three screw terminals labeled 'PWC IN' and the other
end has two screw terminals labeled 'LN-OUT'. NOTE do not use the center in-put screw terminal.
The polarity of the output is not fixed, but follows the polarity of the Input voltage. If the direction of
travel is changed the polarity changes as well.

At first glance you might be concerned about there being two polarized capacitors on the board
without a bridge rectifier to protect them from incorrect polarity on the input side of the board. Since
the capacitors are wired back to back with their negative leads tied together they perform as though
they are a non-polarized capacitor. This is a nice solution as it removes the need for a bridge rectifier
that would have dropped the output voltage from the Base Station and had the potential to generate
considerable heat when used with larger engines.

To hook up the Super Base Station to the PWC / Linear board see Fig 3. This Super Base Station
CRE57005SD/SS has three screw terminals on one end for power output. Attach two wires to the two
outer screw terminals and the other end to the CRE57091 PWC input screw terminals.

Fig 3

POWER TO
TRACK

For more on how to operate the Super Base Station please refer to the CD manual or go to the our
web site and download the manual, under support.

CRE55499

A cooling is recommend use with the Base Station when usage over 7 amp