Средства разработки схем светодиодного освещения STEVAL-ILL076V2

Оценочная плата , тонкий обратноходовой преобразователь 18Вт с широким входным диапазоном с HVLED001A

The STEVAL-ILL076V2 is an 18W wide input range ultra slim flyback converter using HVLED001A quasi resonant flyback controller and STD8N80K5. It implements an offline power converter based on a single stage high-PF flyback topology using the HVLED001A controller. The output voltage is controlled by the primary side, thus reducing the need for costly opto-couplers. The HVLED001A PSR precision and the innovative structure of the transformer for highly accurate output voltage regulation against load and line changes. A very high efficiency is obtained and a full set of protections including output short circuit and input overvoltage is included. Conducted EMI is pre-screened and clearances and creepage distances adhere to EN60950 safety requirements. Power factor and THD are optimized to be respectively higher than 0.95 and lower than 10% at full load over the entire input voltage range. Main application is for bus power supplies in a LED string driver providing 4KV isolation.

• Input voltage Vin range from 90Vrms to 264Vrms, 45Hz to 66Hz
• Output power of 18W at wide input range, 40W at European input range
• Output voltage of 56V ±5%
• High power factor, low THD
• No load better than 400mW at 230Vin
• Full load efficiency greater than 92%
• Short circuit protection with auto restart
• EMI pre-compliant with EN55022 (B) limits
• Safety complies with EN60950
• Dimension of 183mm x 28mm x 17mm

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