Abstract
The equivalent circuit model for two commercial high power LEDs for illuminance is proposed and extensive measurements have been carried out to verify the accuracy of the model. In addition, the frequency response of two LEDs in the optical domain can be estimated using the transfer function of electrical equivalent circuit. It is shown that, the electrical parasitics in the chip and packaging introduce significant attenuation beyond a resonance frequcency. Care should be taken when designing high-speed driver and/or equalization circuits for VLC systems.
Original language | English |
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Title of host publication | The 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC2019) |
Subtitle of host publication | 27-28 April, Shahid Beheshti University, Tehran, Iran |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 90-95 |
Number of pages | 6 |
ISBN (Electronic) | 9781728137674 |
ISBN (Print) | 9781728137681 |
DOIs | |
Publication status | Published - Apr 2019 |
Event | 2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC) - Tehran, Iran Duration: 27 Apr 2019 → 28 Apr 2019 |
Conference
Conference | 2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC) |
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Period | 27/04/19 → 28/04/19 |
Keywords
- Bandwidth
- Carrier lifetime
- Driver circuit
- Equivalent circuit
- Impedance
- Impedance matching
- LED
- VLC