GB/T 24825-2022 in English
VALIDDC or AC supplied electronic controlgear for LED modules―Performance specifications
- Issued on:2022-10-12
- Implemented on:2023-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 24825-2022LED模块用直流或交流电子控制装置 性能规范》由TC224（全国照明电器标准化技术委员会）归口，TC224SC1（全国照明电器标准化技术委员会电光源及其附件分会）执行，主管部门为中国轻工业联合会。
Introduction
Core content
Key points of standard upgrade
Compared with GB/T24825-2009, the main technical changes in this revision include:
- Hierarchical grading of energy efficiency requirements (see Chapter 13 for new energy efficiency grade specifications)
- Optimization of line power factor measurement scheme (A.2 Update of capacitive load test circuit)
- Extended definition of classification including high capacitance/low capacitance modules (new clauses 3.3-3.4)
Practical application guide
| Classification dimensions | Main types | Typical application scenarios |
|---|---|---|
| Output characteristics | Constant voltage/constant current device | LED module with characteristic voltage/current matching |
| Load capacity | Single value/multi-value load device (see Table 1) | Fixed/dimmable lighting system |
Key test item requirements
- Capacitive load test: adopt the improved test scheme of Figure A.1
- Durability verification: including temperature shock and 2000 switching cycles
- Abnormal working condition safety: short circuit protection and unconnected load tolerance test
Energy efficiency evaluation system
Three-level energy efficiency evaluation rules
| Specification type | Minimum energy efficiency coefficient | ||
|---|---|---|---|
| Level 1 | Level 2 | Level 3 | |
| Isolated device (P≤5W) | 85.0% | 80.5% | 75.0% |
| Non-isolated device (P>25W) | 92.0% | 88.0% | 84.0% |
The test needs to be carried out at an ambient temperature of 20~27°C. The output power calculation formula η=Pout/Pin
Product development suggestions
Design application tips
- The marking specification must include the line power factor range and the λ marking must retain two decimal places
- The output voltage/current is controlled within the design margin range of ±10%
- Use
APFC compensation circuit to improve conversion efficiency
Note: Isolation output classification devices should be subject to impulse current verification test in accordance with Appendix A. For the selection of relevant equipment, refer to the latest test circuit diagram in Figure A.1.
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