ON Semiconductor NCP1608BOOSTGEVB, Руководство пользователя

Страница: 22 / 25

NCP1608BOOSTGEVB
http://onsemi.com
22
TEST PROCEDURE FOR THE NCP1608BOOSTGEVB EVALUATION BOARD
Required Equipment
(*Equivalent test equipment may be substituted.)
•
*Chroma 61604 AC Power Source
•
*Voltech PM3000A Power Analyzer
•
2 × *Agilent 34401A Multimeter
•
*Chroma 6314 Electronic Load with *Chroma 63108
High Voltage Module
•
*Tektronix TDS5034B Oscilloscope with
*Tektronix P5205 Differential Probes
Test Procedure
1. Ensure that there is a jumper on J1. If not, place a
jumper on J1 for the remainder of the test
procedure.
2. Connect the electronic load with high voltage
module to the output labeled “400 V, 100 W”.
3. Connect one of the multimeters in series with the
output and load and set it to measure current.
4. Connect the second multimeter to the output and
set it to measure voltage.
5. Connect the oscilloscope with differential probes
to the output and set it to measure output ripple
and frequency.
6. Connect the ac power source and power analyzer
to the terminals labeled “Input”. Set the current
compliance limit to 1.8 A.
7. Set the ac power source to 85 Vac / 60 Hz.
8. Set the high voltage electronic load to 250 mA.
9. Turn the AC source on.
10. Wait 10 seconds, and then check the output
voltage (V
OUT
) using the corresponding
multimeter. Verify it is within the limits of
Table 5.
11. Measure power factor (PF) and input power (P
IN
)
using the power analyzer.
12. Measure the peak-to-peak voltage and frequency
of the output ripple using the oscilloscope.
13. Measure I
OUT
using the corresponding multimeter.
14. Calculate efficiency ( h ) using the equation:
h +
I
OUT
V
OUT
P
IN
100%
15. Repeat steps 9-13 with the ac source set to 115 Vac
/ 60 Hz, 230 Vac / 50 Hz, 265 Vac / 50 Hz. Verify
the results are within the limits of Table 5.
16. Turn off the ac source.
17. Since high voltage will be present after the voltage
is removed, wait for the dc voltmeter to show
approximately 0 V before continuing.
18. Disconnect the ac source.
19. Disconnect the oscilloscope.
20. Disconnect the electronic load.
21. Disconnect both multimeters.
22. End of test.
Table 5. DESIRED RESULTS
For 85 Vac /
60 Hz input
V
OUT
= 397 ± 15 V
PF > 0.99
Output Ripple Voltage < 20 V
PP
Output Ripple Frequency = 120 Hz sine
wave
h > 90%
For 115 Vac /
60 Hz input
V
OUT
= 397 ± 15 V
PF > 0.99
Output Ripple Voltage < 20 V
PP
Output Ripple Frequency = 120 Hz sine
wave
h > 90%
For 230 Vac /
50 Hz input
V
OUT
= 397 ± 15 V
PF > 0.95
Output Ripple Voltage < 20 V
PP
Output Ripple Frequency = 100 Hz sine
wave
h
> 90%
For 265 Vac /
50 Hz input
V
OUT
= 397 ± 15 V
PF > 0.95
Output Ripple Voltage < 20 V
PP
Output Ripple Frequency = 100 Hz sine
wave
h > 90%