开关电源测试报告

Pass / Fail: According to specification 4 hours storage at 0℃, and operating at 40℃

. : Not Specified Test Equipment: TOPNOTCH OTC-2B-N Open Chamber

. : Not Tested CHROMA Series AC Source / DC Load

A. INPUT CHARACTERIZATION

INPUT CURRENT/POWER/EFFICIENCY/POWER FACTOR

Test conditions:

The unit is set at maximum load and the input voltage is varied from the minimum to the

maximum value. Efficiency is computed and Power Factor is either computed or measured after

10 minutes warm up at least.

Test equipment:

Chroma Model 8000 Power Supply Auto Test System

Chroma Model # 6590 9KVA Low Impedance AC Source

Chroma Model # 630X0 DC Load

Chroma Model # 6630 Power Analyzer

Pass/Fail criteria:

The unit test shall meet the specification requirements.

Test result: PASS

@25C

Vin(Vac)Freq(Hz)Iin(A)Pin(W)Vout(V)Pout(W)Pd(W)PF Eff(%) Vin(Vac)Freq(Hz)Iin(A)Pin(W)Vout(V)Pout(W)Pd(W)PF Eff(%)

@40C

Vin(Vac)Freq(Hz)Iin(A)Pin(W)Vout(V)Pout(W)Pd(W)PF Eff(%)

ACTIVE MODE EFFICIENCY & NO LOAD INPUT POWER

Test conditions:

The unit is set at no load and the rated input voltage for at least 15 minutes.

The ambient temperature is set between 15 Deg C to 35 Deg C

Test equipment:

Chroma Model 8000 Power Supply Auto Test System

Chroma Model # 65909KVA Low Impedance AC Source

Chroma Model # 630X0 DC Load

Chroma Model # 6630 Power Analyzer

Pass/Fail criteria:

The unit test shall meet the specification requirements.

ACOUSTIC NOISE

Test conditions:

Measurements to determine the AC adapter sound pressure are made using a 1/2” low noise free-field microphone in a inner size with 45(W)×45(D)×65(H) cm^3 Anechoic chamber. Test equipment:

Anechoic Chamber: Free-Field Acoustics Corp. Lower than 10dB(A) background noise.

B & K Portable Pulse – Type 3560C, Microphone: 4190, Preamplifier: 2669L

Pass/Fail criteria:

The AC Adapter shall produce no human perceivable audible noise (less then 25dB).

The above diagram depicts the microphone of the frontal plane of the microphone to the

Adapter and the height of the centerline of the microphone to the Adapter.

Acoustic Noise Test Set-Up

INRUSH CURRENT

Test condition:

For cold start test at room ambient, the adapter should be off for at least one hour at the test temperature to ensure it is at a uniform temperature before the test is started. Turn on the

UUT

at 90 degrees at positive cycle or 270 degrees at negative cycle. Between each test, the UUT

shall be cooled down for at least 3 minutes and the Bulk Cap’s Energy is discharged.

For hot start test at max. Operating ambient, the adapter should be on and running for at least one hour at the test temperature to ensure it is at a uniform temperature before the test is

Repetitive ON/OFF (1Sec. ON/1Sec. OFF for 10 times) cycling of the UUT and turn on at 90

degrees at positive cycle or 270 degrees at negative cycle. Between each test, the Bulk Cap’s

Energy shall be discharged.

Test equipment:

Chroma Model 8000 Power Supply Auto Test System

Chroma Model # 6590 9KVA Low Impedance AC Source

Chroma Model # 630X0 DC Load

Tektronix AM503 Current Probe Amplifier

Tektronix A6303 Current Probe

Tektronix TDS-5054 Oscilloscope

Pass/Fail criteria:

The inrush current shall meet the specification requirements.

AC line inrush current shall not damage any components, nor cause the AC line fuse to blow,

under any DC load conditions, any ambient temperature, and with any ac line input voltage

and frequency.

Test result: PASS

Extended Name = Cold start 25 deg. ambient; after Extended Name = Cold start 25 deg. ambient; after