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VAD-55B Metal Enclosed Switching Power Supply
V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005 www.v-infinity.com 1-866-372-1258
CH1 CH2
DC output voltage 27.6V 26.5V
Output V. tolerance ±1% ---
Output rated current 1.8A 0.16A
Output current range 0-2A ---
Ripple & noise 100mVp-p ---
Line regulation ±0.5% ---
Load regulation ±0.5% ---
DC output power 53.92W
Efficiency 74%
DC voltage adj. CH1: 24-29V
Input voltage range 88~264VAC 47~63Hz; 120-370VDC
AC current 1.6A/115V 1A/230V
Inrush current cold start 20A/115V 40A/230V
Leakage current <1mA/240VAC
Overload protection 105%~150% / 230VAC, pulsing (hiccup mode), auto restart
Over voltage protection CH1: 14.49-18.63V protection type: Hiccup mode auto restart
DC alarm signal (optional) AC fail CH1 PIN2
battery low under charge voltage 82.5% ± 2% CN1 PIN1
normal 0.8V max. abnormal 5V±0.5V
Temperature coefficient ±0.03% / °C (0~50°C) output on CH1
Set up, rise, hold up time 1.6s, 50ms, 16ms/115VAC 800ms, 50ms, 60ms / 230VAC
Vibration 10~500Hz, 2G 10 min./1 cycle, period of 60 min. each axes
Withstand voltage I/P-O/P: 3KVAC, I/P-FG: 1.5KVAC, O/P-FG: 0.5KVAC, for 1 min.
Isolation resistance I/P-O/P, I/P-FG, O/P-FG: 500VDC / 100M Ohms min
Working temp., humidity -10°C~+60% (refer to output derating curve), 20%-90% RH
Storage temp., humidity -20°C~+85°C, 10%-95% RH
Dimensions 6.26x3.82x1.50 inches (159x97x38 mm) Case: 901
Weight 1.25lbs (0.57 Kgs)
Safety standards IEC950 requirement approved
EMC standards CISPR22 (EN55022) class B, EN61000-4,2,3,4,5,6,8,11,
EN61000-3-2, -3 verification
MTBF 304.3K hrs. min. MIL-HDBK-217F (25°C)
Notes: 1. All parameters are specified at 230VAC input, rated load, 25°C 70% RH ambient
2. Tolerance includes set up tolerance, line regulation, load regulation
3. Ripple & noise are measured at 20MHz by using a 12” twisted pair terminated with a 0.1uF & 47 uF capacitor
4. Line regulation is measured from low line to high line at rated load
5. Load regulation is measured from 20% to 100% rated load, and other output at 60% rated load
6. Each output provides up to maximum current, but total load can not exceed maximum output power
7. CH2 Bat. charger voltage at no load, rated current at Bat. V=11V/22V
V-Infinity reserves the right to make changes to its products or to discontinue any product or service without notice, and to advise
customers to verify the most up-to-date product information before placing orders. V-Infinity assumes no liability or responsibility for
customer’s applications using V-Infinity products other than repair or replacing (at V-I’s option) V-Infinity products not meeting V-I’s
published specifications. Nothing will be covered outside of standard product warranty.
Features
·Universal AC input
·Short circuit, overload, overvoltage protection
·100% full load burn-in test
·Convection cooled
·Fixed switching freq. @ 45kHz
·Battery low / battery polarity protection
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VAD-55B Metal Enclosed Switching Power Supply
V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005 www.v-infinity.com 1-866-372-1258
Block Diagram
Output Derating Static Characteristics
Dimensions (mm)
