Global Specialties 1332A - Manual (Page 3)

GENERAL INFORMATION
DESCRIPTION
The 1332A Power Supply is a high perfomance single
output DC power supply for industrial and laboratory
use. Performance with economy have successfully
been combined to provide a compact, fully solid state
instrument.
The output is continuously variable from 0 to 32V and can
supply 5A max, and can be adjusted continuously through-
out the output range. The front panel CURRENT control
can be used to establish the output current limit (overload
or short circuit). When the supply is used as a constant
voltage source the VOLTAGE controls can be used to limit
the output voltage. When the unit is used as a constant
current source, CURRENT controls can be used to limit
the output current. The unit will automatically cross over
from constant voltage to current mode and vice-versa, if
the output current or voltage exceeds these preset lim-
its. Output voltage and current are continuously moni-
tored on two front panel meters.
The load terminals are provided on the front panel. Either
the positive or negative output terminal may be grounded
or the power supply can be operated floating at upto a
maximum of ±300VDC above ground.
All the outputs are floating i.e. neither the output positive
terminal nor the negative terminal (nor any point within the
regulator circuitry) is connected to ground.
The power supply is designed to operate in ambient
temperature of upto 40°C and full output may be drawn
continuously provided free air circulation is allowed.The
unit works from mains supply of 115V/230VAC, 47-63 Hz
with selectable Switch.
1
PCB Components 2 X Z-DPM/01 PCB REV - 01
=======================================================================
Ref Designator
Value
=======================================================================
RESISTORS
R1
39K,0.25,5%,MFR
R2 470K,0.25W,5%,MFR
R3 1M,0.25W,5%,MFR
R4* SEL(INPUT)
R5 10K,0.25W,5%,MFR
R6 2K4,0.25W,5%,MFR
R7 330E,0.25W,5%,MFR
R8 330E,0.25W,5%,MFR
R9 6K8, 0.25W,5%,MFR
PRESETS
PR1
2.5K,LIN,VER (REF ADJ)
CAPACITORS
C1
220pF,50V,CD
C2 0.1uF,100V,MP
C3 0.01uF,50V,CD
C4 0.47uF,100V,MP
C5 0.1uF,100V,MP
C6 0.1uF,100V,MP
C7 10uF,50V,EL
C8 0.1uF,50V,CD
C9 10uF,50V,EL
C10 0.1uF,50V,CD
IC’s
IC1
7107 DECODER DRIVER
VR1 TL - 431
FND’s
DS1
TSD566 GREEN
DS2 TSD566 GREEN
DS3 TSD566 GREEN
LED’s
LED1*
3MM GREEN(VOLTAGE) FOR 'CV' MODE
LED2* 3MM RED (CURRENT) FOR 'CC' MODE
MISCILLANEOUS
J1 2.54PITCH,3PIN M
J2 NOT USED.
J3 2.54PITCH,4PIN M
18