Protective circuit for output terminal capacitor of light-emitting diode (led) driver

Abstract

The present disclosure discloses a protective circuit for an output terminal capacitor of a light-emitting diode (LED) driver, and a method for providing the protective circuit. The protective circuit is connected to two ends of the output terminal capacitor and includes a switching element, a voltage dividing unit and a one-way conduction unit. The switching element is in parallel connection with the output terminal capacitor, the one-way conduction unit is connected between the switching element and the output terminal capacitor, the switching element is switched on when a voltage exceeds a threshold so as to establish a short circuit between two ends of the output terminal capacitor and prevent an excessively large voltage from being applied to the output terminal capacitor, and the one-way conduction unit allows a current to flow across the output terminal capacitor from the protective circuit by a one-way conduction.

Dependencies are inferred from the claim text.