Lighting Device

摘要

A lighting device is provided. The lighting device includes a switch-mode power supply module, an electronic ballast power supply module, a first single-pole double-throw switch, a second single-pole double-throw switch, a third single-pole double-throw switch, a fourth single-pole double-throw switch, and a direct-current driven lighting module. The lighting device is connected with the ballast, one input of the ballast is connected to an AC power supply. The switch-mode power supply module and the electronic ballast power supply module are used to convert AC into DC. The common end of four single-pole double-throw switch is connected with the ballast. When the ballast is an inductive ballast, the common end of four single-pole double-throw switch is connected to the input of the switch-mode power supply module. When the ballast is the electronic ballast, the common end of four single-pole double-throw switch is connected to the output of the electronic ballast power modules.

主权项

1. A lighting device, configured to connect with a ballast, an input of the ballast connected to an AC power supply, the ballast has four outputs of a L1 end, a L2 end, a N1 end, and a N2 end, the lighting device comprising:
a switch-mode power supply module, having four inputs of a L1S end, a L2S end, a N1S end, and a N2S end, the switch-mode power supply module is configured to convert AC into DC; an electronic ballast power supply module, connected with the switch-mode power supply module in parallel, the electronic ballast power supply module having four inputs of a LIT end, a L2T end, a N1T end, and a N2T end, and the electronic ballast power supply module configured to convert AC into DC; a first single-pole double-throw switch, having a common end and two output ends, the common end thereof connected with the L1 end of the ballast, one output end of the first single-pole double-throw switch connected with the L1S end of the switch-mode power supply module, and the other output end of the first single-pole double-throw switch connected with the L1T end of the electronic ballast power supply module; a second single-pole double-throw switch, having a common end and two output ends, the common end thereof connected with the L2 end of the ballast, one output end of the second single-pole double-throw switch connected with the L2S end of the switch-mode power supply module, and the other output end of the second single-pole double-throw switch connected with the L2T end of the electronic ballast power supply module; a third single-pole double-throw switch, having a common end and two output ends, the common end thereof connected with the N end of the ballast, one output end of the third single-pole double-throw switch connected with the N1S end of the switch-mode power supply module, and the other output end of the third single-pole double-throw switch connected with the N1T end of the electronic ballast power supply module; a fourth single-pole double-throw switch, having a common end and two output ends, the common end thereof is connected with the N2 end of the ballast, one output end of the fourth single-pole double-throw switch connected with the N2S end of the switch-mode power supply module, and the other output end of the fourth single-pole double-throw switch connected with the N2T end of the electronic ballast power supply module; and a direct-current driven lighting module, comprising n direct-current driven light emitting elements D1, . . . , Dn arranged in sequence; wherein, when the ballast is an inductive ballast, the common end of the first single-pole double-throw switch is connected to the L1S end of the switch-mode power supply module, the common end of the second single-pole double-throw switch is connected to the L2S end of the switch-mode power supply module, the common end of the third single-pole double-throw switch is connected to the N1S end of the switch-mode power supply module, and the common end of the fourth single-pole double-throw switch is connected to the N2S end of the switch-mode power supply module; when the ballast is an electronic ballast, the common end of the first single-pole double-throw switch is connected to the L1T end of the electronic ballast, the common end of the second single-pole double-throw switch is connected to the L2T end of the electronic ballast, the common end of the third single-pole double-throw switch is connected to the N1T end of the electronic ballast, and the common end of the fourth single-pole double-throw switch is connected to the N2T end of the electronic ballast.