LED Power Driver Test System

The Chroma C8000 ATS is equipped with optimized standard test items for LED driver testing (lighting & TV backlight). The user is only required to define the test conditions and specifications for the standard test items to perform the test.

The optimized test items cover 6 types of power supply test requirements. “Output Performances” verifies the output characteristics of the UUT. “Input Characteristics” check the UUT input parameters. “Regulations” test the stability of UUT under varying line-in and loading changes. “Timing & Transient” test the timing and transient states during protection. “Protection Tests” trigger and test the protection circuit, the “Special Tests” provide means to test the most sophisticated UUT’s when unique test routines are needed.

Output Performances

1. Output voltage
2. Output current
3. Ripple Current (RMS & p-p)
4. Dimming Current
5. Dimming Frenquency
6. Dimming Duty
7. Efficiency
8. In-test adjustment

Input Characteristics

9. Input Inrush Current
10. Input RMS Current
11. Input Peak Current
12. Input Power
13. Current Harmonics
14. Input Power Factor
15. Input Voltage Ramp
16. Input Freq.Ramp
17. AC Cycle Drop Out
18. PLD Simulation

Regulation Tests

19. Current Regulation
20. Voltage Regulation
21. Total Regulation

Timing & Transient

22. Turn ON Time
23. Hold Up Time

Protection Tests

24. Short Circuit
25. OV Protection
26. OL Protection
27. OP Protection

Special Tests

28. GPIB Read/Write
29. RS232 Read/Write