Kepco RKW 50W Series Operator Manual Bedienungsanleitung PDF herunterladen

Data subject to change without notice 228-1448 REV 8

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: hq@kepcopower.com

INSTRUCTION MANUAL

KEPCO

An ISO 9001 Company.

RKW

50W SERIES

50 WATT SINGLE OUTPUT, PFC,

OPEN FRAME POWER SUPPLIES

I — INTRODUCTION

SCOPE OF MANUAL. This instruction manual covers

the installation and operation of the Kepco RKW 50W

Series of Open Frame. PFC (Power Factor Corrected),

RoHS (Reduction of Hazardous Substances) compliant

switching power supplies.

DESCRIPTION. The Kepco RKW 50W Series consists of

six models of switching power supplies, with a single output

as shown in Table 1. Units may be operated with a nominal

100V a-c to 240V a-c (input voltage range 85 to 265 Va-c),

50-60 Hz (input frequency range 47-66Hz; units operate up

to 440Hz although leakage current, power factor and effi-

ciency specifications may not be met.) They will also oper-

ate on 110V to 370V d-c input. The RKW 50W Series

employs a forward converter with a fixed switching fre-

quency of approximately 140kHz. Power Factor Correction

(PFC) is provided by a boost converter operating at 80kHz.

Regulation is provided by pulse width modulation. A therm-

istor circuit prevents excessive turn-on current surge.

Remote programming of output voltage using an external

resistance can be implemented. Overvoltage and overcur-

rent protection is provided. Current limiting with automatic

recovery from short circuit is featured. Units are convection

cooled L-chassis construction. A steel cover (Model

CA 34-R) is available as an option (contact factory for der-

ating with cover).

Specifications and operating limits for individual RKW 50W

models are listed in Table 1. Section II describes RKW 50W

features. Section III contains specifications and operating

limits common to all RKW 50W Series Models. Section IV

describes installation and Section V describes operation.

TABLE 1. OUTPUT RATINGS AND SPECIFICATIONS, RKW 50W SERIES

MODEL

RKW 3.3-12K RKW 5-10K RKW 12-4.3K RKW 15-3.5K RKW 24-2.2K RKW 48-1.1K

OUTPUT VOLTS, d-c

3.3V 5V 12V 15V 24V 48V

ADJUSTMENT RANGE, Vd-c

2.85-4.0 4.0-5.8 9.6-13.2 12-16.5 19.2-26.4 38.4-52.8

OUTPUT CURRENT (AMPS)

-10 to +50 °C

12.5 10 4.3 3.5

2.2

(5)

1.1

CURRENT LIMIT

(2)

(AMPS)

13.1 min 10.5 min 4.5 min 3.6 min 3.3 min 1.15 min

SHORT CIRCUIT CURRENT

(2)

(AMPS)

16.0 12.6 5.6 5.4 6.2 2.4

OVP SETTING

(1)

(VOLTS)

4.2-5.2 6.0-6.9 13.7-15.7 17.0-19.0 27.0-30.5 55.0-60.0

EFFICIENCY

100 Va-c

71% 75% 78% 78% 79% 80%

200 Va-c

73% 78% 80% 80% 82% 83%

RIPPLE

AND

NOISE

(3)

(mV p-p)

Switching ripple (typ)

80 80 100 100 100 130

spike noise (typ)

(2)

120 120 150 150 150 200

External Potentiometer

(4)

1K Ohms 1K Ohms 2K Ohms 2K Ohms 5K Ohms 10K Ohms

(1) An overvoltage shuts down the output. Recover by recycling a-c input (30 second delay required before resetting).

(2) The current limit is rectangular. After the overload is removed, output is automatically restored.

(3) Bandwidth 100 MHz. Ripple and noise will be approximately 1.5 times these values in the operating temperature range -10 ~ 0°C. The ripple

and noise values tabulated are valid when the output is derated as shown in figure 2 from 50 ~ 65°C

(4) Used for remote programming of output voltage. See Section IV OPERATION, REMOTE VOLTAGE PROGRAMMING.

(5) Peak Current: 3.2A (useful for motor start applications). Thermal protection (24V model only) cuts off output voltage if overtemperature

detected; after sufficient cooling, recover by cycling a-c input.

1 2 3 4 5

Inhaltsverzeichnis

Seite 1 - INSTRUCTION MANUAL

Seite 2 - III — SPECIFICATIONS

2 228-1448 REV 8 082610KEPCO, INC.  131-38 SANFORD AVENUE  FLUSHING, NY. 11355 U.S.A.  TEL (718) 461-7000  FAX (718) 767-1102 http://www.k

Seite 3 - IV — INSTALLATION

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

Seite 4 - V — OPERATION

4 228-1448 REV 8 082610KEPCO, INC.  131-38 SANFORD AVENUE  FLUSHING, NY. 11355 U.S.A.  TEL (718) 461-7000  FAX (718) 767-1102 http://www.k

Seite 5 - 082610 228-1448 REV 8 5

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

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Kepco RKW 50W Series Operator Manual Bedienungsanleitung

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