Free Service Manuals

                                    This book covers all models in the E/B series of stabilised
bench power supplies. The series offer a choice of output
voltage and output current.
By use of a slider switch the precision analogue meter is
used to display output voltage or output current. A push
button switch is used to turn the power supply on and off. A
green LED is used to indicate the power ‘on’ condition. A 10
turn precision potentiometer is use to vary the output
voltage over its range from near zero to its maximum rating.
The power supply is protected against current overloads by
electronic current limiting preset at approximately 110% of
the nominal output current rating. In operation this circuit
remains approximately constant. On removal of the overload
the output will reset to its original value.
The current limit condition is indicated by a red LED near
the output terminals.
The power supply incorporates circuitry that gives limited
protection against the application of external voltages in
the reverse and forward mode and thus the unit may be used
for battery charging and parallel applications.

1. SCHEDULE OF
EQUIPMENT...................................................................................2
2.
INTRODUCTION............................................................................................................3
3.
SPECIFICATION.............................................................................................................4
4.
INSTALLATION.............................................................................................................6
5. OPERATING
INSTRUCTIONS..................................................................................7
6.
APPLICATIONS..............................................................................................................8
7. CIRCUIT
DESCRIPTION.............................................................................................9
8.
RECALIBRATION..........................................................................................................10
9.
MAINTENANCE.............................................................................................................11
10. CIRCUIT
DIAGRAMS..................................................................................................12