User's Manual

12 Channel Channelised Cell Enhancer
User Handbook
Handbook N.-50-122501HBK Issue No:-A
Date:-16/03/05
Page:-
23 of 40
4.6 DC/DC Converter, 24V in, 12V 8A out (13-003011)
4.6.1 Description
The DC/DC converter fitted is an O.E.M high power PCB unit with an 8 amp @ 12V output
capability. The regulator exists within this unit because of the need to supply 12V DC to the
channel modules; if the unit is being supplied with power by the external 24V DC rail, there
would be only be 24V in the system and the channel modules would have no power. The
circuit is basically an O.E.M semiconductor regulator (one side of which has a heatsink
mounting plate, usually bolted to the casing of a Cell Enhancer) and smoothing components
built onto a printed circuit board with screw block terminations.
Note: no circuit diagram of this O.E.M. regulator is available. This unit should not be
repaired, only replaced.
4.6.2 Technical Specification
PARAMETER SPECIFICATION
Input Voltage Range: 18-28V DC
Output Voltage: 12V±0.5V
Max. Current Load: 8.0Amps
operation
:
-10°C to +60°C
Temperature range:
storage: -20°C to +70°C
Size(PCB): 190 x 63mm
Weight (Loaded PCB): 291gms