China 27V 20A 9V 8A 12V 2A Multi Output Power Supply

1 INTRODUCTION
GPAD651M27-5B is the AC/DC power supply of high power with multi-outputs. Due to the latest circuit design, it is compact and of reliable performance. It has the wide range of input voltage and has many functions including the functions of input over-voltage and wanting voltage,output short-circuit, over-current, over-voltage and over-heating. It also has the alarm function, the cooling way of natural conductive. The power supply is designed strictly in accordance with the safety regulations, which conforms to the safety standards and requirements of information technology.
2 SPECIFICATION REQUIREMENTS
2.1 Environmental Requirements
2.1.1 Operating temperature -40ºC~+65ºC
2.1.2 Storage temperature:-45ºC~+85ºC
2.1.3 Relative humidity:20%~90%
2.1.4 Absolute altitude:≤3000m
2.1.5 Atmospheric pressure:70~106KPa
2.1.6 Cooling:natural conductive
2.2 Input Requirements

ItemUnitMinTypicalMaxTesting ConditionsInput voltage rangeVac145220295 Vac155 285 Input power factor 0.9

2.3 Output Requirements
2.3.1 Basic output requirements

Output voltageOutput voltage rangeOutput current rangeRegulator precession Load regulationVoltage regulationRipple+27V26.8V~27.5V1A~20A≤±3%≤±2%≤±1%≤50mV+9V8.9V~9.25V0A~8A≤±3%≤±2%≤±1%≤50mVMODEM(+12V)11.85V~12.3V0A~2A≤±3%≤±2%≤±1%≤30mVcharge24.6V24V~24.6V0A~0.3A≤±3%≤±2%≤±1%≤30mV

Remark: During the ripple testing(peak-peak value), it is measured under the rated voltage input and load, with 0.1UF filmy capacitor and 10UF/50V high frequency electrolytic capacitor on output, 20MHz bandwidth of oscillograph.
2.3.2 Other requirements

ItemUnitMinTypicalMaxTesting ConditionsOutput PowerW-640 Output Efficiency%80 -Rated input/outputTemperature coefficient/ºC ±0.02%

2.4 Protection

ItemUnitMinTypicalMaxRecovery characteristicsInput over-voltage protectionV295 330 Recovery point for Input over-voltage protectionV285 315 Input under-voltage protectionV120 145 Recovery point for Input under-voltage protectionV135 155 Battery under-voltage protection V17 18 +27V output over-voltage protection V30-32.5Auto recovery+9V output over-voltage protectionV11 14Auto recoveryMODEM output over-voltage protectionV14 17Auto recovery+27V output limited current protectionA22 25Auto recovery+9V output limited current protectionA8.5 13Auto recoveryMODEM output limited current protectionA3 5.5Auto recoveryOver-heating protectionºC95 105Auto recoveryShort-circuit protectionAAuto recovery after long time

2.5 Safety

Item LevelStandards(or testing conditions)Insulation voltage
(output to ground)500Vdc500Vdc/1Min / Leakage Current≤10mAInsulation voltage
( input to ground)1500Vac1500Vac/1Min / Leakage Current≤10mAInsulation voltage
( input to output)1500Vac1500Vac/1Min / Leakage Current≤10mAInsulation resistance10MΩUnder normal atmospheric pressure, and when the relative humidity is 90%, and the testing voltage is DC 500v, for the power supply, the insulation resistance of input to output, input to ground, and output to ground is no less than 2MΩ.grounding resistance0.1ΩIt will be less than 0.1Ω for a single power supply.Tangent current1.75mAIt will be less than 1.75mA for a single power supply.

2.6 EMC

ItemIndex requirementsStandardsCECLASS AEN55022RECLASS A EN55022CSLEVEL 2:3V/m IEC61000-4-6RSLEVEL 2:3V/mIEC61000-4-3ESDLEVEL 3EN61000-4-2(CLASS B)ESDThere is no influence on the operation of power supply when charge on the case after power supply is encased
Tangent discharge:±6KV
Air discharge:±8KVEN61000-4-2(CLASS B)EFT/BLEVEL 3:2KVIEC61000-4-4SURGELEVEL 3:line-line2KV
Line-ground4KVEN61000-4-5DIPDrop to70%,40%,0%
Holding time 10ms,100ms,500ms etc.IEC61000-4-11

2.7 Other requirements

ItemIndex requirementsPerformanceNoiseThe noise of power supply should be less than 55dB(A), the condition is in the range of input voltage and output voltage and current, the distance is 1 meter from front , back, right and left, and 1.5 meter from upper and underside.PassMTBF100,000H Vibration>Frequency : 5 to 10 Hz
>Amplitude : 3.5mm,9~200Hz
>Direction : 3 directions
>Sweep time : 50minutes(50minute per one way)
> acceleration:10m/s2,
> there is no influence on power supply.PassShockHalf-sine wave,acceleration: 20G,Amplitude 11ms,Direction : 3 directions(X,Y,Z)
3 times per one directionPassDustproofHas some function of dustproofPassOdorNo peculiar smell and deleterious gas Pass