Automotive LED Driver based on Resonant DC-DC Converter with Wide Input and Output Voltage Ranges
| Autor: | Montu Doshi, Satyaki Mukherjee, Alihossein Sepahvand, Dragan Maksimovic, Vahid Yousefzadeh |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Physics business.industry 020208 electrical & electronic engineering String (computer science) Automotive industry Electrical engineering Battery (vacuum tube) 02 engineering and technology 01 natural sciences law.invention law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Inverter Current (fluid) business TO-18 Voltage Light-emitting diode |
| Zdroj: | 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL). |
| DOI: | 10.1109/compel.2019.8769716 |
| Popis: | This paper presents an immitance-network based resonant dc-dc converter capable of operating efficiently over wide input and output voltage ranges. The resonant network results in current-source property on the output side, together with zero-voltage switching and near zero-current switching of switching devices. On the inverter side, a pair of phase-shifted half bridges enables output current control with reduced circulating currents over wide input voltage range. These features are well suited for automotive LED drivers supplied from a battery with wide input voltage range, and regulating output current through a string of LEDs, where the number of LEDs may vary. Experimental results are shown for a 2 MHz converter prototype operating from an input voltage from 8 V to 18 V, and delivering 0.5 A output current to a string of 1-15 LEDs, which corresponds to an output voltage range of 3-to-50 V. |
| Databáze: | OpenAIRE |
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