LED driving structure
US10716187B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2019 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Nov 8, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED driving structure includes an LED module, a power supply circuit, a voltage stabilizing circuit, a temperature compensation circuit and a gallium nitride field-effect transistor that are electrically connected. The power supply circuit is configured to supply a current to the LED module. The voltage stabilizing circuit includes a rectifying diode, a resistor and a Zener diode, and is connected to a gate of the gallium nitride field-effect transistor through the temperature compensation circuit for providing a stable voltage. The temperature compensation circuit includes at least one resistor, a thermistor and a transistor connected to the gate of the gallium nitride field-effect transistor for the LED module after being energized to maintain its power stably when there are voltage fluctuations and temperature fluctuations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.