1.1

Input Characteristics

NO.

Items

Technical Requirement

Unit

Remark

1.1.1

Rated Input Voltage

100-240

Vac

1.1.2

Input Voltage Range

90-264

Vac

1.1.3

Frequency Range

47-63

Hz

1.1.4

Inrush Current

≤100

A

Vin=110/220Vac, cold condition. 

1.1.5

Maximum Input Current

≤5

A

Vin=110Vac. 

1.1.6

Efficiency

≥88%

Rated load @220VAC. 

1.1.7

Power Factor

           ≥0.95

Rated load. 

1.2

Output Characteristics

NO.

Items

Technical Requirement

Unit

Remark

1.2.1

Rated Output Voltage

51

5

Vdc

1.2.2

No Load Output Voltage Variation △V 

0.2

0.2

Vdc

1.2.3

Output Voltage Range

50-52

5.0-5.4

Vdc

5V Output voltage range at the customer 's request. 

1.2.4

Rated Output Current

4.7

4

A

1.2.5

Minimum Output Current

0

0

A

1.2.6

Maximum Capacitive Load 

6000

5000

uF

1.2.7

Load Regulation

±3%

±3%

1.2.8

Output Ripple and Noise

≤400

≤80

mVp-p

Vin=110/220Vac

Made the oscilloscope with 20MHz bandwidth,

output resistor side with 10uF & 104 capacitors parallel to decouple.

1.2.9

Turn-On Delay Time

≤3

≤3

S

Vin=220Vac,rated load. 

1.2.10

Hold-Up Time

≥10

≥10

mS

1.2.11

Output Overshoot at Turn On and Turn Off

±5%

±5%

1.2.12

Dynamic Response

Overshoot Amplitude

±5% 

Variety load between 25%-50%-25% or 50%-75%-50%.

Recovery Time

△t≤200

µS

1.3

Protection Characteristics

NO.

Items

Technical Requirement

Unit

Remark

1.3.1

Input Undervoltage Protection

65-88

Vac

Re-start. 

1.3.2

Input Overvoltage Protection

no

1.3.4

Output Overvoltage Protection

54-60

no

Vdc

Experimental method is open loop voltage. 

Both ways may automatically remove.

1.3.5

Output Overcurrent Protection

  5.5-8.5

5-7

A

Both ways may automatically remove.

1.3.6

Over Temperature Protection

90-100

ºC

1.3.7

Output Short Circuit Protection

The way of short circuit protection is burp restart, both ways may automatically remove.