US Pat. No. 11,071,183

LIGHTING APPARATUS

XIAMEN LEEDARSON LIGHTING...


1. A lighting apparatus, connecting to a dimmer and an external power source, comprising:a light source; and
a driver for converting the external power source to a driving current supplied to the light source, the driver comprising a rectifier module, a constant voltage module, a control module, a constant current module, and a power module, wherein the rectifier module is connected to the dimmer for rectifying a dimming voltage to a rectified voltage, the constant voltage module is connected to the rectifier module for providing a first constant voltage power according to the rectified voltage, the control module is connected to the rectifier module for providing a control signal according to the rectified voltage, the constant current module is connected to the constant voltage module and the light source for providing a constant current according to the control signal and the first constant voltage power, the power module is connected to the constant voltage module for providing a supplied voltage according to the first constant voltage power source.