Quality

How to Ensure 7-10 Year Warranty

Upowertek has strong R&D team, strict process and professional factory to ensure high quality of the LED drivers.

Experienced Engineers
Strict Process
Qualified Components
Adequate Design Margin
Strict Verification Hardware System

Professional Technical Team

Jim Wang CTO

Master Degree of Zhejiang University
Philips, Inventronics Background
20 Years R&D

Neo Dong Firmware Expert

Master Degree of North Jiaotong University
Intelligent Driver Oriented

Nick Ke R&D Director

Master Degree of Zhejiang University
Inventronics Background
10 Years R&D

Jack Han R&D Director, Grow light driver

Master Degree of Zhejiang University
Inventronics Background
15 Years R&D Experience

Design Stages and Documentation

Market Analyze

Customer enquiry
Collect competitor’s info
Evaluate market demand
Evaluate cost

Project Initiate

EVT, 1pcs
Electrical performance test
Functionality test
Product Thermal test

Initial Design

DVT, 3pcs, Functionality & Thermal
Stress & EMI
Electrical & ambient
Life and MTBF

Pilot Run

100pcs, Functionality & thermal
Electrical performance & ambient test

Final Design

PVT, 30pcs, Functionality & thermal test
Electrical & ambient test
Life acceleration test

Stress Analysis

Upowertek performs stress analysis in the DVT stage and output reports for every product platform. All the LED drivers are designed with conservative margin.

MTBF Calculation

MTBF Calculation: MIL-HDBK-217

Software: Relcalc 217F2

Lifetime Calculation

Among all the components in an LED driver, the bulk electrolytic capacitor has the shortest life, so it determines the life of the whole device

k is the factor determined by capacitor’s RMS ripple current and operating voltage, it is provided as either a value or a function,
L0 is the lifetime value tested in standard condition provided in the datasheet,
Ts is the rated case temperature,
Ta is the operating case temperature.

Highly Accelerated Lifetime Test

Upowertek performs dual 85 test in the product design stage. 5pcs LED drivers is put inside a 85C temperature chamber, then test the performance at 100% output. The test will pass if the LED drivers works at least 21 days.

10kV Surge Protection Test

Upowertek LED drivers are designed with 10kV surge protection function, we use Everfine surge protection device to verify the test, ensure that the product is robust in the design stage.