C8000 LED Power Driver Test System

C8000 Power Driver Test System


LED Power Driver Test System

  1. DC Electronic Load: Chroma 6310A/6330A Series
  2. Time/Noise Analyzer: Chroma 6011/80611 + 80611N
  3. DC source: Chroma 62000P Series
  4. Digital Power Meter/Analyzer: Chroma 6630/66200 Series
  5. Sytem Controller*1: Industrial PC
  6. OVP/Short circuit tester: Chroma 6012/80612
  7. ON/OFF Controller: Chroma 6013/80613
  8. AC Source: Chroma 6500/61500/61600 Series
  9. Transducer Uint*2: Chroma A849101

*1 : The controller includes both Measurement Card and Control Card to provide BL control signal (DC level, PWM, SM bus), and Enable ON/OFF signal.
*2 : Requires Measurement Card to measure Dimming Current/ Frequency/ Duty, and Timing / Noise Card to measure Ripple Current (@20MHz)

System Overview

Chroma’s C8000 ATE can test all the input and output conditions for LED Power Drivers consistently & accurately. Programmed routines for a variety of tests fully test the entire specifications for an LED Power Driver & can handle multiple measurements for multiple unit testing. With Chroma’s PowerPro III software the system is easy to program, and data collection for SPC requirements is built in to the software.

Optimized Test Items

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

Regulation Tests

  1. Current Regulation
  2. Voltage Regulation
  3. Total Regulation
Input Characteristics

  1. Input Inrush Current
  2. Input RMS Current
  3. Input Peak Current
  4. Input Power
  5. Current Harmonics
  6. Input Power Factor
  7. Input Voltage Ramp
  8. Input Freq.Ramp
  9. AC Cycle Drop Out
  10. PLD Simulation
Timing & Transient

  1. Turn ON Time
  2. Hold Up Time

Protection Tests

  1. Short Circuit
  2. OV Protection
  3. OL Protection
  4. OP Protection

Special Tests

  1. GPIB Read/Write
  2. RS232 Read/Write

LED Lighting Driver Test Block Diagram

LED Lighting Driver Test Block Diagram

Software Platform for ATS

The Model C8000 Test Systems include the industries most sophisticated power supply testing software platform, PowerPro III. PowerPro III provides users with an open software architecture suited for a wide range of applications and devices.

PowerPro III is built for a Windows 98/NT/2000/XP environment, which provides necessary computer peripherals.

Maximum Vin: 600VAC
Maximum Iin: 20A
Maximum Pin: 2000W
Maximum Vout: 300VDC
Maximum Iout: 8A
Maximum Pout: 1200W

Number of Outputs: 8
Multiple UUT test: Yes

i2C, RS-232, RS-485, CAN, etc.

Model Description
8490 LCD Inverter / Ballast Test System
C8000 LED Power Driver Automatic Test System LED Power Driver ATS


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