Luminescence element driving circuit and electronic equipment

发光元件驱动电路及电子设备

Abstract

The utility model relates to an electronic equipment discloses a luminescence element driving circuit and electronic equipment. In the luminescence element driving circuit, the the first signal input connect in the base of triode, power input end connect in the collecting electrode of triode, the 2nd signal input part connect in the positive pole of unidirectional flux component, the negative pole of unidirectional flux component connect in the projecting pole of triode, light emitting component connect in between the projecting pole and earthing terminal of triode, wherein, work as when a drive signal is received to the the first signal input, the triode switches on, light emitting component is in first luminescent state, when when the 2nd signal input part receives the 2nd drive signal, the triode ends, light emitting component is in the second luminescent state. This drive circuit makes pilot lamp and light filling lamp drive circuit unite two into one, can effectually practice thrift the PCB area among the electronic equipment, reduces the cost that electronic equipment made simultaneously.
本实用新型涉及电子设备,公开了一种发光元件驱动电路及电子设备。在发光元件驱动电路中,第一信号输入端连接于所述三极管的基极,所述电源输入端连接于所述三极管的集电极;所述第二信号输入端连接于所述单向导通元件的正极,所述单向导通元件的负极连接于所述三极管的发射极;所述发光元件连接于所述三极管的发射极与接地端之间;其中,当所述第一信号输入端接收第一驱动信号时,所述三极管导通,所述发光元件处于第一发光状态;当所述第二信号输入端接收第二驱动信号时,所述三极管截止,所述发光元件处于第二发光状态。该驱动电路使指示灯和补光灯驱动电路合二为一,可以有效的节约了电子设备中的PCB面积,同时降低电子设备制造的成本。

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