CREE LED (lamp XP-C P3) light source thermal performance test

Introduction to light source testing

This test is mainly for the thermal performance test of 1W high power LED (XP-C P3) emitter light source provided by CREE. The main tests are:

(1) IV curve test and electric power test

(2) Node temperature (hereinafter referred to as junction temperature) measurement

(3) LED thermal resistance measurement

(4) Optical parameter performance test at different operating temperatures

Related tests to verify the relevant specifications provided by them as a basis for designing the light source application.

Test sample & test equipment

Test sample introduction:

Electro-Optical characteristics
Electro-Optical characteristics at If=350mA, Ta=25oC

Test equipment composition description

(1) Tester body

Output constant current source, sampling setting, signal conversion, data processing, etc.;

(2) Temperature control copper heat sink platform

As a measure of the temperature coefficient Kj and the LED thermal performance test at different operating temperatures;

(3) Static air test integrating sphere

Measure the luminous flux of the LED according to EIA/JESD51-1, manufacturing a constant volume test environment;

(4) Computer

Install test software to operate and control the entire test process;

LED emitter thermal resistance parameter test path: Rj-slug = (Tj – Tslug)/Pd, thermal resistance measurement from the emitter node to the bottom of the heat slug, Pd is the input power