KEPCO JBW 30W Series - Manual

©2010, KEPCO, INC 1
Data subject to change without notice 228-1426 REV 3
KEPCO, INC. 131-38 SANFORD AVENUE FLUSHING, NY. 11355 U.S.A. TEL (718) 461-7000 FAX (718) 767-1102
http://www.kepcopower.com email: [email protected]
O P E R A T O R M A N U A L
KEPCO
An ISO 9001 Company.
JBW
30W SERIES
30 WATT SINGLE OUTPUT
SWITCHING POWER SUPPLIES
I — INTRODUCTION
SCOPE OF MANUAL. This instruction manual covers
the installation and operation of the Kepco JBW 30W
Series of RoHS (Reduction of Hazardous Substances)
compliant Switching Power Supplies.
DESCRIPTION. The Kepco JBW 30W Series consists of
four models of switching power supplies, with a single out-
put as shown in Table 1. Units may be operated with a
nominal 100 to 120V a-c and 220 to 240V a-c (input voltage
range 85 to 265 Va-c), 50-60 Hz (input frequency range 47-
440Hz.) They will also operate on 110V to 370V d-c input.
The JBW 30W Series employs a light weight ferrite core
with a fixed switching frequency. Regulation is provided by
pulse width modulation. A FET power stage, operating in
the flyback converter mode provides a smooth isolated d-c
output. A thermistor circuit prevents excessive turn-on cur-
rent surge. Overvoltage protection is provided. Current lim-
iting with automatic recovery from short circuit is featured.
Units are manufactured on an open frame pc board.
Table 1 contains specifications and operating limits of indi-
vidual JBW 30W Series models. Section II (following) con-
tains specifications and operating limits common to all JBW
30W Series Models.
II — SPECIFICATIONS
The following specifications are at nominal input voltages
and 25°C and apply to all models unless otherwise speci-
fied.
INPUT CHARACTERISTICS:
INPUT VOLTAGE: (0 to 100% load, -10 to 60°C)
Nominal 100-120V a-c, 220-240V a-c
Range: 85-265V a-c, 110 -370V d-c
NOTE: The power supply may shut down if operated at
below the input voltage range or if the input voltage
increases slowly at start up (> 1 second). To reset the
power supply, unplug the unit, wait one minute and
reapply input power.
INPUT SOURCE FREQUENCY:
Nominal: 50/60 Hz
Range: 47-440 Hz
INPUT CURRENT: (100% load at 25°C with nominal out-
put voltage):
100V a-c input: 0.65A typ., 0.86A max.
240V a-c input: 0.35A typ., 0.48A max.
INPUT PROTECTION AND SOFT START: A thermis-
tor circuit reduces start-up surge. Units are protected
against shorts by an input fuse. Fuse value 2.0A, 250V.
TABLE 1. OUTPUT RATINGS AND SPECIFICATIONS, JBW 30W SERIES
MODEL JBW 05-6R0 JBW 12-2R5 JBW 15-2R0 JBW 24-1R3
OUTPUT VOLTS, d-c 5V 12V 15V 24V
SETTING TOLERANCE 4.75-5.25V 11.4-12.6V 14.25-15.75V 22.8-25.2V
ADJUSTMENT RANGE FIXED FIXED FIXED FIXED
MAXIMUM
OUTPUT
RATINGS
50° C amb. 6.0A/30W 2.5A/30.0W 2.0A/30.0W 1.3A/31.2W
60° C amb. 4.2A/21.0W 1.75A/21.0W 1.4A/21.0W 0.91A/21.84W
CURRENT LIMIT (AMPS) 6.3 min 2.7 min 2.1 min 1.4 min
OVP RANGE (VOLTS) 5.60 min 13.3 min 16.6 min 26.5 min
EFFI-
CIENCY
100 Va-c 75% 78% 79% 80%
240 Va-c 77% 79% 80% 81%
OUTPUT CAPACITOR
µFmax., (fixed load resistance)
10000 2200 4000 1000
RIPPLE
AND
NOISE
(1)
(mV p-p)
ripple (typ) 80 120 120 120
ripple
-10-0°C, max
140 160 160 160
spike noise
(max)
(2)
120 150 150 150
spike noise
-10-0°C, max
(2)
160 180 180 180
(1) 0 to 100% load, 0 to 50 °C, tested with 100µF electrolytic and 0.1µF film capacitors across the measuring points, and connected to the power
supply via 5.9 in (150mm) wires
(2) Measured with a 20 MHz bandwidth oscilloscope.