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AC-DC 12W - 12V 1A Test Report

SMPS 12V1A TDLOGY sample

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Test Result

1. Input Characteristics
1.1. Maximum rated input AC current
Input 180Vac 47-63Hz full load

VIN(AC)

180VAC

198VAC

IIN_RMS

0.155A

0.147A

 

1.2. No Load Input Power Dissipation
Standard: Single range input 230Vac and the output is no load, the input power loss must be less than 0.1W
Result: PASS.

VIN(AC)

230VAC

Requirements

Pout = 0W

60mW

<0.1W

 

1.3. Average Efficiency
Standard: Single range 230Vac
Test Condition: on PCB

Vin(Vac)

Fline(Hz)

Iout(A)

Vout(V)

Pout(W)

Pin(W)

Eff (%)

Eff_AVG(%)

230

50

1

12.24

12.23

14.5

84.34

83.59

0.75

12.24

9.17

10.89

84.21

0.5

12.198

6.093

7.26

83.93

0.25

12.15

2.907

3.55

81.89

0.1

12.1

1.199

1.548

77.45

77.45

No Load

12.05

 

0.06

 

 

2. Output Characteristics
2.1. Ripple & Noise
Standard: under the input voltage 198Vac~264Vac, output on PCB, Vripple <150mVp-p

Waveforms (198Vac & 264Vac):

Test Condition: 198Vac/50Hz Input, 12V/1A Output

Test Condition: 198Vac/50Hz Input, 12V/0A Output

 

 

VOUT_RIPPLE_PP = 51.2mVp-p

 

 

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VOUT_RIPPLE_PP = 31.2mVp-p

 

Test Condition: 264Vac/50Hz Input, 12V/1A Output

Test Condition: 264Vac/50Hz Input, 12V/0A Output

 

VOUT_RIPPLE_PP = 50.4 mVp-p

 

 

 

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VOUT_RIPPLE_PP = 32.8 mVp-p

2.2. Output Voltage / Current Characteristics
Standard: Output voltage regulation ±5%
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2.3. Start Time & Rise Time
Waveforms:

Test Condition: 198Vac/50Hz Input, 12V/1A Output

Test Condition: 198Vac/50Hz Input, 12V/1A Output

 

 

 

TSTARTUP = 1.8s

TRISE = 16ms

 

2.4. Hold-up Time
Waveforms:

Test Condition: 198Vac/50Hz Input, 12V/1A Output

Test Condition: 230Vac/50Hz Input, 12V/1A Output

 

 

 

 

Tholdup = 32.6ms

Tholdup = 48ms

 

2.5. Output Overshoot
Waveforms:

Test Condition: 198Vac/50Hz Input, 12V/0A Output

Test Condition: 198Vac/50Hz Input, 12V/1A Output

 

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A screen shot of a graph AI-generated content may be incorrect.

 

Vovershoot = 0mV

Vovershoot = 0mV

 

2.6. Load Transient Test
Waveforms:

Test Condition: 198Vac/50Hz Input, 10% to 90%,10ms, 50%

Test Condition: 198Vac/50Hz Input,10% to 90%, 500ms, 50%

 

 

 

 

VH=12.7V, VL=12V

VH=12.7V, VL=11.8V

 

3. Protection Requirements

3.1. Over Current Protection

Input Voltage

OCP(A)

198Vac/50Hz

1.2

230Vac/50Hz

1.21

264Vac/50Hz

1.21

 

3.2. Short Circuit Protection

Waveforms:

Test Condition: 198Vac/50Hz Input, 1A to short

Test Condition: 198Vac/50Hz Input, short to 1A

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CH1-VOUT, CH2-VCE

CH1-VOUT, CH2-VCE

 

4. EMI

Test Condition: 230Vac/50Hz Input, 12V/1A Output

Conduction EMI - Line

 

Test Condition: 230Vac/50Hz Input, 12V/1A Output

Radiated EMI

 

 

 

 

 

 

 

 

 

 

 

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