power supply 12v 6a 72w power supply adapter supplier
1. INTRODUCTION:
This document define a switching power supply electronic process.The switching power supply will provide for technology equipment including electrical business equipment.
2. INPUT REQUIREMENTS:
2.1 Operating range: 90-264VAC
2.2 Rated Input Voltage :100-240VAC
2.3 Input Frequency Range: 50/60Hz +/-3Hz
2.4 Input In-rush Current: 100A max
2.5 Input Current:1.5A max
3.OUTPUT REQUIREMENTS:
3.1 Output Voltage and Current
|
Output |
Output Regulation(V) |
No Load |
Rating Load (A) |
|
|
Voltage(V) |
Minimum |
Maximum |
Current(A) |
Continuous Current(A) |
|
12V |
11.4V |
12.6V |
0A |
6.0A |
3.2 Output Voltage Regulation
The total output voltage regulation shall be +/-5%,including the effects of line voltage variations,load current,ripple and noise,and the AC component of the load current.
3.3 Output Voltage Ripple
The switching power supply shall not exceed the following limits in the indicated voltage for 60Hz or 50Hz ripple,switching frequency ripple and noise measured with 20MHz width.
Ripple and Noise:50/60Hz Ripple + Switching Ripple and Noise
|
Output |
Ripple |
|
0-6.0A |
200mV |
Ripple and Noise are measured at the end of output cables which are added a
0.1uF(104) Ceramic capacitor and a 22uF Electrolytic capacitor.
4. EFFICIENCY:
When 220VAC line input voltage (100-240 VAC),the efficiency shall be >82% at rating load.
5. DIELECTRIC STRENGTH (Hi-Pot) TEST:
Finished product withstands with AC3000Vrms/50Hz,5mA max,
primary to secondary, 1 minute for type test,1 second for production test.
6. INSULATION RESISTANCE:
Primary to secondary: 10MΩ min at 500VDC.
7. PROTECTION:
7.1 Short Circuit Protection
If short circuit occurs,all the output should be protected. After the fault, the adapter automatically recovers.
7.2 Over Shoot
The Output over shoot at turn-on shall not exceed 10% of normal voltage value with or without the load connected.
7.3 Start-up time
The start-up time is less than 2 second.
8.ENVIRONMENTAL CONDITIONS:
8.1 Temperature
Operating temperature: 0℃ to +40℃
Storage temperature : -20℃ to +60℃
8.2 Humidity
Relative humidity：≤95%
8.3 Operating Ambient Altitude
Altitude:0-3000m
8.4 Operating at the lower temperature
At -0℃,with the rated voltage 100-240Vac charged to the primary and unloaded and full load on the secondary 8 hours, no abnormality in electric and mechanical characteristic, after 2 hours recovery at the room temperature.
8.5 Operating at the high temperature
At +40℃,with the rated voltage 100-240Vac charged to the primary and unloaded and full Load on the secondary 8 hours, no abnormality in electric and mechanical characteristic, after 2 hours recovery at the room temperature.
9. COOLING:
Cooling shall be with natural convection cooling.
10.Burn-in
The burn-in test will be performed at least 4 hours at centigrade
degrees under full load Condition.
11.Referenced standard:
11.1 EMI Standards
Reference EN50082-1，EN55022-B，GB-17625.1-2003， GB-9254-1998
EN55013 EN55020
11.2 Safety Standards
The adapter shall be meet certified with the following safety standards.
EN61347,GB4943-2001, J55013,J55020,J60065
12. MOUNTING CONNECTORS:
12.1 AC Input Connector
Spec : 3Pin ( PIN)
12.2 DC Output Cable
Wire : (Optional) SPT-1 18AWG*2C L=1200mm Color: Black (音插带磁环)
Plug : (Optional) 5.5 x 2.1x 10mm
13. MECHANICAL FEATURES:
13.1 Dimension(Size)
Length: 119.5mm
Width: 62.5mm
Height: 33.5mm
13.2 Weight
The Power Supply unit : 240±10g
13.3 Vibration and shock
No Evidence of any mechanical or functional damage after the vibration and shock testing.
|
Test conditions |
Acceptance Criteria |
|
|
Frequency |
10-55Hz |
Nominal functional test should be satisfied after the test |
|
Sweep |
For each axis(X,Y,Z) |
|
|
Displacement |
0.15mm |
|
|
Periodicity |
10 |
|
13.4 Drop test
After Dropping from a hight of 75 cm onto a wooden floor , Dropping at 6 sides totally, NO breakage should be happened in the test piece.
13.5 Bending Test
Fix the power supply and its plug, apply a load of 200g to the other end, turn the cable by +/-60℃ carry out this process 1000 times, at the rate of 20 times per minutes. No abnormality in mechanical and electrical Characteristic and disconnection within 30% after the test.
