| 摘要 |
<p>A circuit for providing thermal compensation for a driver circuit used to drive light emitting diodes (LEDs) is provided. The driver circuit can include a rectifier circuit configured to rectify an AC power source into a DC power source providing a DC source voltage. The driver circuit can further include a boost circuit configured to boost the DC source voltage to provide a drive voltage for driving the light emitting diodes. The boost circuit can include a switching element that is controlled based at least in part on a current sense circuit having a sense transistor. A thermal tracking transistor is provided as part of the reference to the sense circuit.</p> |
