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Product Data Sheet
750 WATT AC/DC POWER SUPPLY
KX750
DESCRIPTION
The KX750 is a low profile, 750 watt, power factor corrected, triple output power supply utilizing a half-bridge topology operating at 250kHz. The compact design yields a power density in excess of 6 watts per cubic inch. Universal input and power factor correction to EN61000-3-2 make the KX750 an excellent choice for product applications with woldwide markets. In addition, the KX750 carries UL, CSA and TUV approvals, and complies with FCC and VDE Class B EMI requirements. Optional active current sharing on all three outputs simplifies N+1 redundant applicaitons. Remote sensing capability is standard on all outputs and will compensate for up to 0.7V line drop. All outputs are fully isolated, regulated, and current limited
FEATURES
Active Power Factor Correction to EN61000-3-2 3.3V Main Output FCC/VDE Class B EMI Filter Active Current Sharing Optional Fully Isolated and Regulated Outputs Compact Size: 12" x 5" x 2" 75% Efficiency Typical > 6 Watts Per Cubic Inch Optional Fan Mounted On Cover Optional Current Sharing On All Outputs AGENCY APPROVALS
Internet: http://www.cdpowerelectronics.com
Power Electronics Division, United States
3400 E Britannia Drive, Tucson, Arizona 85706 Phone: 800.547.2537 Fax: 520.770.9369
KX750 4/99 REV B
Power Electronics Division, Europe
C&D Technologies (Power Electronics) Ltd. 132 Shannon Industrial Estate, Shannon, Co. Clare, Ireland Tel: +353.61.474.133 Fax:+353.61.474.141
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Input Specifications
Parameter
Operating Range Inrush Current
Conditions
47-63Hz 120VAC, cold start 240VAC, cold start
Min
90
Typ
Max
264 40 80
Units
VAC APK APK %
Efficiency Power Factor Correction (PFC)
Nominal line and full load Meets EN61000-3-2
75 0.99
Remote Sense Remote Sense is provided on all outputs and will compensate for 0.7V of line drop. Remote Sense leads are protected against open, short, and reversal. Remote On/Off The power supply is turned on with a TTL logic `1' (or open) signal and turned off by a switch closure or TTL logic `0' referenced to (-) sense terminal. Consult the factory for other options. Over Voltage Protection Output #1: 6.25V, 0.8 VDC. The power supply will latch off until AC power is cycled. Over Current Protection Individual current limit on all outputs. Automatic recovery upon fault removal. Reverse Voltage Protection All outputs are protected to rated load. Transient Response The peak output voltage excursion on the main output will not exceed 2% and will recover within 1% in 200 Sec for a 25% load step change. Output Isolation All outputs are fully isolated.
Power Fail Signal Upon AC input voltage removal, the power fail signal drops to logic zero at least 5msec before loss of DC output. Upon AC input turn-on, signal remains low until outputs are in regulation referenced to (-) sense terminal. Consult the factory for other options. DC Power Good Signal Upon a 10% loss of regulation on any output, the DC Good signal drops to a logic zero referenced to (-) sense terminal. Consult the factory for other options. Over Temperature Protection Internal thermal switch turns off power supply if overheating occurs and automatically restarts when temperature drops below threshold. Safety UL Recognized: UL File Number 14675 (1950 & 1012) CSA Certified: CSA File Number LR9070-154C (C22.2 No. 234-M90, Level 6) TUV License Number:R9576032 (EN60950) (IEC950) Cooling The unit is designed to operate with 30 CFM of airflow.
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KX750 4/99 REV B
Output Voltages and Maximum Rated Loads
MODEL NUMBER
KX750-F3A KX750-F2B KX750-F1C
OUTPUT #1 IMAX VOUT
5V 5V 5V 100A 100A 100A
OUTPUT #2 VNOM IMAX
12V 12V 20A 20A
OUTPUT #3 VNOM IMAX
12V 20A
NOTE: Total power not to exceed 750 watts.
Output Specifications
Parameter
Regulation Line Load Cross Minimum Load Output #1 Outputs #2 & #3 Hold-Up Time 5.0A 1.0A >20mSec at Full Load + 0.1% + 0.2% + 0.2%
Limits
Main Output Outputs #2 - 3 + 0.2% + 0.4% + 0.2%
Parameter
Voltage Adustment Range PARD Temperature Operating
Conditions
Nominal line on all outputs 20 MHz bandwidth
Min
Typ
5
Max
1
Units
% % P-P
0 Derates 20W/C 50 -20 Non-condensing All outputs after half hour warm-up 0
50 70 +85 95 0.02
C C C % %/C
Storage Humidity Range Temperature Coefficient (TC)
KX750 4/99 REV B
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Mechanical
Side View
- Remote Sense #2 + Remote Sense #2 Current Sense Bus #2 - Remote Sense #3 + Remote Sense #3 Curent Sense Bus #3 + Remote Sense #1 - Remote Sense #1 Sync I/O AC Power Fail Alarm Status/Control Return DC Power Good Remote Inhibit Current Sense Bus #1
KX750 4/99 REV B
Side View
Top View
Bottom View
NOTES: All measurements are in inches FAN MOUNTED ON COVER ADDS 1.70". COOLING: The KX750 is designed to operate with 30 CFM airflow in 50C ambient termperature. SHOCK AND VIBRATION: The KX750 meets the requirements of MIL-STD-810D. (Vibration-Method 514.3 Procedure I; Shock-Method 516.3 Procedure I). WEIGHT: Approximately 6 lbs.
Pin Specifications
Terminal Block 1
POS 1 2 3 FUNCTION AC Line AC Neutral Ground
Connector Specifications
Terminal Block 2
POS 1 2 3 4 FUNCTION -V2 +V2 -V3 +V3 PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14
J9 Connector Molex No. 22-08--1140
FUNCTION
Standard Options are shown, consult factory for other available options.
The information provided herein is believed to be reliable; however, C&D TECHNOLOGIES assumes no responsibility for inaccuracies or omissions. C&D TECHNOLOGIES assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. C&D TECHNOLOGIES does not authorize or warrant any C&D TECHNOLOGIES product for use in life support devices/systems or in aircraft control applications.
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