SECTION - 1
GENERAL INFORMATION
DESCRIPTION :
This simple AC/DC power source is designed specifically
for use in educational institutions. It can be used to demon-
strate the concept of alternating and non-alternating volt-
ages. It can also be used for simple experiments using
lamps, resistances, etc. The unit has been provided with
Voltmeter and Ammeter for AC / DC Voltage and current
readings
SPECIFICATIONS :
AC Voltage :
Output voltage
No Load
: 0V to 30V (nom)
Full Load
: 0V to 25V ±2V
Output current
: 5A max
Output protection
: 5A Circuit Breaker
DC Voltage :
No Load
: 0V to 40V
Full Load
: 0V to 25V ± 2V
Output voltage
: 0V to 25V (nom)
Output current
: 5A max
Output protection
: 6A Circuit Breaker
DPM V/A Selection
: 2Pole/2Way Push Sw.
Output Voltage
: 3 Digit LED Display (Green)
Output Current
: 3 Digit LED Display (Green)
General :
Input power
: 115V / 230VAC,60 Hz,single phase
Input Fuse 115/230V : 2A /3A, 250V Slow Blow
Dimensions
: 235mm x 155mm x 295 mm.
( W x H x D ) approx.
Weight
: 10.0 Kg. approx.
1
PCB Components
Z-DPM/02
=======================================================================
Ref Designator
Value
=======================================================================
IC
IC1
ICL7107 CPL
VR1
TL431
FND
DS1
GREEN FND COMMON ANODE
DS2
GREEN FND COMMON ANODE
DS3
GREEN FND COMMON ANODE
CONNECTORS
J1
3PIN, 2.54MM MALE
J3
4PIN, 2.54MM MALE
R4
12H555 SPADE CONNECTOR.
GENERAL
=======================================================================
Ref Designator
Value
=======================================================================
SWITCHES
SW1
ON / OFF SWITCH
6A, 125V, DPST, ILLUMINATED
SW2
2P2T 5A POWER SWITCH.
DIODE BRIDGE
10A / 600V
VARISTOR
20D 361 ( 230V ).
20D Z131 ( 115V )
DIMMER
INPUT 2A / 115V AC
OUTPUT 5A / 30V, AC
CIRCUIT BREAKER
5A / 125V AC
6A / 125V DC
FUSE HOLDER
FHB/02 10A/250V.
INPUT FUSE
2A / 250V, SLOW BLOW
TERMINAL
BTI-15N RED 12A x 1
BTI-15N BLACK 12A x 1
BTI-15N BLUE 12A x 2
TRANSFORMERS
CURRENT TRANSFORMERS
DPM TRANSFORMERS
SPARE CARBON
6
