KEPCO JBW 15W User Manual

OPERATOR MANUAL

KEPCO

An ISO 9001 Company.

JBW

15W SERIES

15 WATT SINGLE OUTPUT

SWITCHING POWER SUPPLIES

I — INTRODUCTION

SCOPE OF MANUAL. This instruction manual covers

the installation and operation of the Kepco JBW 15W
Series of RoHS (Reduction of Hazardous Substances)
compliant Switching Power Supplies.

DESCRIPTION. The Kepco JBW 15W Series consists of four models of switching power supplies, with a single out­put 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 47­440Hz.) They will also operate on 110V to 370V d-c input. The JBW 15W Series employs a light weight ferrite core with a variable switching frequency. Regulation is provided by pulse width modulation. A FET power stage, operating in

TABLE 1. OUTPUT RATINGS AND SPECIFICATIONS, JBW 15W SERIES

MODEL

OUTPUT VOLTS, d-c
SETTING TOLERANCE
ADJUSTMENT RANGE

MAXIMUM

OUTPUT

RATINGS
OUTPUT CURRENT (AMPS)

CURRENT LIMIT (AMPS)

OVP RANGE (VOLTS)

EFFI-

CIENCY

OUTPUT CAPACITOR

µFmax., (fixed load resistance)

RIPPLE

AND

NOISE

(mV p-p)

(1) 0 to 100% load, 0 to 50 °C, tested with 100µF electrolytic and 0.1µF film capacitors across the measuring points, connected to the power supply

via 5.9 in (150mm) wires; Measured with a 20 MHz bandwidth oscilloscope.

(1)

50° C amb.

60° C amb.

100 Va-c
240 Va-c

ripple (typ)

ripple

-10-0°C, max
spike noise

(max)

spike noise

-10-0°C, max

JBW 05-3R0 JBW 12-1R3 JBW 15-1R0 JBW 24-0R7

5V 12V 15V 24V

4.75-5.25V 11.4-12.6V 14.25-15.75V 22.8-25.2V
FIXED FIXED FIXED FIXED

3.0A/15W 1.3A/15.6W 1.0A/15.0W 0.7A/16.8W

2.1A/10.5W 0.9A/10.92W 0.7A/10.5W 0.49A/11.76W

3.0 1.3 1.0 0.7

3.15 min 1.37 min 1.05 min 0.74 min

5.75 min 13.8 min 17.25 min 27.6 min
72% 76% 76% 78%
72% 74% 74% 76%

10000 5000 4000 2000

80 120 120 120

140 160 160 160

120 150 150 150

160 180 180 180

the ringing choke converter mode provides a smooth iso­lated d-c output. A thermistor circuit prevents excessive
turn-on current surge. Overvoltage protection is provided.
Current limiting 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 indi­vidual JBW 15W Series models. Section II (following) con­tains specifications and operating limits common to all JBW
15W Series Models.

II — SPECIFICATIONS

The following specifications are at nominal input voltages at
25°C unless otherwise specified.

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

INPUT SOURCE FREQUENCY:

Nominal 50/60 Hz;
Range 47-440 Hz

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INPUT CURRENT: (100% load at 25°C with nominal out-

put voltage):
100V a-c input: 0.36 typ., 0.43 max.
240V a-c input: 0.20A typ., 0.24A 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.

INPUT SURGE: Cold start:

100V a-c input, 100% load: 15A typ, 19.5A max.
240V a-c input, 100% load: 30A typ., 41A max.

LEAKAGE CURRENT: Cold start:

100V a-c and 60 Hz (single pole switching):

0.75mA max, 0.2mA typ
100V a-c and 60 Hz (single pole switching in confor­mance to UL 1950/IEC 950):

0.75mA max, 0.30mA typ

ENVIRONMENTAL CHARACTERISTICS

OPERATING TEMPERATURE: -10 to 60°C (start up

-20 to -10°C). See the derating, Figure 1.

STORAGE TEMPERATURE: -30°C to + 75°C.

COOLING: Natural convection. Do not allow the power

supply to become dust covered because that will
decrease the cooling efficiency of the unit and cause insu­lation to deteriorate.

POWER FACTOR:

100V a-c: 0.6 typ.
240V a-c: 0.45 typ.

OUTPUT CHARACTERISTICS:

SOURCE EFFECT: (85 to 265 Va-c)

0.4% max.

LOAD EFFECT: measured at sensing terminals (0% -

100% load change)

0.8% max.

TEMPERATURE EFFECT: (-10 to 50°C)

1.0% max.

TIME EFFECT OR DRIFT: (1/2 to 8 hr. at 25°C)

0.4% max.

TRANSIENT RECOVERY: A step load change from
50% to 100% of rated load in 50 microseconds or more
produces no more than 4% output voltage excursion.
Temperature range from -10 to 50°C.

HOLD UP TIME: Upon input interruption the output is
maintained for 150 milliseconds typical with 240 Va-c
input voltage, and for 13 milliseconds typical with 100 Va­c input voltage. The condition for output load is 100%.

START UP TIME:

JBW 5V and 12V:
100 Va-c: 200mS max., 25mS typ.
240 Va-c: 100mS max., 25mS typ.
JBW 15V and 24V:
100 Va-c: 200mS max., 40mS typ.
240 Va-c: 100mS max., 40mS typ.

OVERVOLTAGE PROTECTION: Fixed, factory set.
See Table 1. The overvoltage circuit is set by Zener diode
clamp, latching could occur.

OVERCURRENT: Square type, output voltage returns
to rated level upon removal of cause of malfunction (long
term overcurrent could damage unit).

ORIENTATION: Vertical or horizontal (see Figure 2).
HUMIDITY: 20% to 90% relative humidity, operating

and storage, noncondensing, wet bulb temperature < or =
35°C.

VIBRATION: Three axes, one hour each, sweep time

10 min., nonoperating.

5-10 Hz., 10 mm amplitude
10-200 Hz., 2G (19.6m/s

SHOCK: Three axes, 60G (588m/s

2

) acceleration

2

), 11 mS ±5mSec
pulse duration, three shocks each axis, nonoperating, 1/2
sine pulse.

GENERAL CHARACTERISTICS

WITHSTANDING VOLTAGE: (at 5 to 35°C ambient,

45 to 85% relative humidity, cutout current 10 mA):

Between input and output terminals:

3.0 KV a-c for 1 minute.

Between input and output or chassis:

2000V a-c for 1 minute.

Between output terminals and chassis:

500V a-c for 1 minute.

INSULATION RESISTANCE: Between input and out­put, input and chassis, output and chassis: 100 megohms
minimum (500V d-c, 5 to 35°C ambient, 45 to 85% relative
humidity)

SAFETY: All units designed to meet UL 1950-3, CSA
Electrical Bulletin 22.2NO950-95, and TÜV Rheinland
EN60950 (ambient temp. 50°C). JBW 15W units are CE
marked per the Low Voltage Directive (LVD), EN60950.
[The standards do not apply with DC input operation]

EMI CONDUCTED: FCC Class B, VCCI-B, EN55011­B, EN55022-B.

ESD: Ground potential area to chassis: 10KV (charge
capacitor 500pF, series resistor 100 Ohms).

SURGE WITHSTAND: 1.2x50µs 3KV pulse input to
input, input to chassis (operating, normal operation, 100
Ohm internal series resistor).

INCOMING NOISE: 1 µs, 2 KV pulse, 50-60Hz, with
50 ohm termination, input to input, input to ground, less
than five minutes, operating.

WARRANTY: One year.

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FIGURE 1. OUTPUT POWER VS. TEMPERATURE

III — INSTALLATION

MOUNTING POWER SUPPLY: Refer to Figures 2

and 4. The unit may be mounted on one mounting surface.
The air surrounding the power supply must not exceed the
ambient values given in the graph in Figure 1.

INSULATION: Install unit 0.3 inches (8mm) away from base with the use of 0.24 inch (6mm) diameter spacers attached to the PC board. Keep at least 0.16 inches (4mm) spacing around and above the unit to comply with insula­tion and safety requirements. An insulator must be used if the spacing is less than 0.16 inches (4mm) (see Figure 2).

VENTILATION: It is recommended to keep at least 0.39 inches (10mm) clearance from adjacent equipment for proper ventilation

CONNECTIONS: Connect the load to the power supply by connecting the two (+) output wires from terminal block TB2 to the load (+) terminal, and the two (–) output wires from TB2 to the load (–) terminal. The AC input power is applied via the terminal block TB1. Make sure to connect the AC input Neutral and Line wires to the P2 and P3 pins respectively of TB1 (see Figure 3). A Cable Kit (P/N 219-

0406) is available as an option from Kepco (see Figures 3
and 5). The kit includes an input cable, terminated on one
end with an input mating connector; and an output cable,
terminated on one end with an output mating connector.

FIGURE 2. VENTILATION, INSULATION AND MOUNTING

DIRECTION

IV — OPERATION

PROTECTION DIODE: When a number of power sup-

plies are operating in series, the current rating is to be lim­ited to the rating of the power supply with the lowest rating.

A diode (Vr>2 Vo, If>2Io, Vf<< low) must be connected to
the power supply output terminals to protect the unit from
reverse voltage.

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Σ

FIGURE 3. LOAD CONNECTIONS

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NOTES: 1.Dimensions are in inches, dimensions in brackets are in millimeters.

2.TOLERANCES: ±0.04” [±1.0 mm] unless specified.
3 WEIGHT: 2.82oz. (80 gr.) max.
4 PCB: Thickness = 0.06 ± 0.008 in. (1.6 ± 0.2mm)

FIGURE 4. JBW 15W MECHANICAL OUTLINE DIAGRAM

Terminal Function

1 Input L

2 Input N

3 Ground

4 Ground

Pad

5 Output (-)

6 Output (+)

Mating Connectors

Connector Terminal Pin

SVH-21T-P1.1

Input

Output

T101 H101-05

50539-8100 51144-0500

SXH-001T-P0.6 XHP-4

T221-01 H221-04

67262-001 67261-0400

(1) JST= Japan Solderless Terminal Mfg. Co.

(4)

Socket

Housing

VHR-5N

MFR

JST

LCE

MLX

JST

LCE

MLX

(1)

(2)

(3)

(1)

(2)

(3)

(2) LCE= Long Chu Electronics Co.
(3) MLX = Molex
(4) Optional cable kit (P/N 219-0406) includes

one input and one output cable (one meter
long) with mating connectors for TB1 and
TB2, unterminated at other end.

FIGURE 5. INPUT/OUTPUT CONNECTIONS

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