Ming-micro linear constant current SM2315E solves the "sharp weapon" of fractional harmonics

1. What will the fractional harmonics affect?

Fractional harmonics belong to one of the harmonics.

The influence of fractional harmonics is still under discussion. The main influences are: causing voltage fluctuations and flicker, overload of passive filters (caused by resonance amplification of interharmonics), interference power line control, protection and communication. The signal causes low-frequency oscillation of the electromechanical system, affects the control device that uses the voltage zero-crossing point as the synchronization signal, and some household appliances work normally. Therefore, the inter-harmonic voltage of the grid must be controlled below a certain level.

Ming Microelectronics high-voltage linear SM2315E, whether it is low power or high power, can perfectly solve the sub-harmonic to achieve certification: IEC61000-3-2 (Class C).

2, SM2315E is to solve the fractional harmonic "profit"

SM2315E is a "library" for solving fractional harmonics. SM2315E is an LED linear high voltage constant current driver chip.

Features: Low THD, high PF, easy to achieve harmonic requirements IEC-6100-3-2 (Class C), built-in over-temperature protection, wide voltage input, support for parallel expansion, single 15W.

3, SM2315E 100W application examples

The perfect application of high bay light, flood light, wall light, and light source module, taking the SMW scheme of SM2135E as an example, using multiple floodlights made by parallel SM2315E.

3.1. Reliability test data:

3.2. Scheme physical map

4, SM2315E important parameters comparison advantages

5, SM2315E measured EMI waveform

6, THD measured data