27V 4A, 12V 3A Power Supply

• Output Type: Dual
• Warranty: 2 Years
• Output Power: 101 - 200W
• Input Voltage: 176-264V
• Certification: CE, RoHS, CCC, CB, FCC
• Brand: Goldpower
• Model NO.: GPAD141M27-2C
• Transport Package: Carton
• Trademark: Goldpower
• Origin: China
• HS Code: 8504401400

Product Description

1 INTRODUCTION
GPAD141M27-2C is a double outputs power supply with middle power. Due to the newest circuit design, it is compact and of reliable performance. It also has a high regulator precession and output efficiency. It has the wide input voltage range and has many functions including short-circuit, over-current, over-voltage protections. The cooling way is natural conduction. 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:-25ºC~+55ºC
2.1.2 Storage temperature:-45ºC~+85ºC
2.1.3 Relative humidity:10%~90%
2.1.4 Absolute altitude:≤3000m
2.1.5 Atmospheric pressure:70~106KPa
2.1.6 Cooling:natural conduction
2.2 Input Requirements

Item	Unit	Min	Typical	Max	Testing Condition
Input voltage range	Vac	176	220	264
Input voltage frequency range	Hz	47	50	63

2.3 Output Requirements
2.3.1 Basic output requirements

Output voltage	Output current range	Regulator precession	Load regulation	Voltage regulation	Ripple
+27V	0A~4A	≤±1.5%	≤±1%	≤±1%	≤150mV
+12V	0A~3A	≤±1.5%	≤±1%	≤±1%	≤150mV

Remark: Test the ripple under the rated voltage input and output, via 0.1UF filmy capacitor and 10UF/50V high frequency electrolytic capacitor on output, 20MHz bandwidth of oscillograph.
2.3.2 Other requirements

Item	Unit	Min	Typical	Max	Testing Conditions
Output Power	W	-	144	-	Natural cooling
Output Efficiency	%	80	-	-	Rated input/output
Temperature coefficient	/ºC			±0.02%
Output put-off @turn-on	S	-	-	4	Rated input/output
Over-rush @on-off	%	-	-	±10
Time for output rising	ms	-	50	100	Output voltage rise from 10% to 90%,rated load

2.4 Protection

Item	Unit	Min	Typical	Max	Recovery characteristics
+27V output over-voltage protection	V	28		32	Auto recovery
+12Voutput over-voltage protection	V	12.5		15
+27V output over-current  protection	A	5		8	Auto recovery
+12V output over-current  protection	A	4		7
short-circuit protection	ºC		100		Auto recovery after a long time.
Over-heating protection					Auto recovery

2.5 SAFETY

Item	Level	Standards(or testing conditions)
Insulation voltage (output to ground)	500Vdc	500Vdc/1Min / Leakage Current≤10mA
Insulation voltage ( input to ground)	1500Vac	1500Vac/1Min / Leakage Current≤10mA
Insulation voltage ( input to output)	1500Vac	3000Vac/1Min / Leakage Current≤10mA
Insulation resistance	10MΩ	Under 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 10MΩ.
Leakage current	≤3.5mA	Input 264Vac

 Remark: Remove the discharge tube during testing.
2.6 EMC

Item	Index requirements	Performance
Noise	≤55dB(A)	Pass
MTBF	100,000H
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.	Pass
Shock	Half-sine wave,acceleration: 20G,Amplitude 11ms,Direction : 3 directions(X,Y,Z) 3 times per one direction	Pass
Dustproof	Has some function of dustproof	Pass
Odor	No peculiar smell and deleterious gas	Pass