Power supply driving circuit of laser dual-color light source used in projection display equipment

Abstract

The invention discloses a power supply driving circuit of a laser dual-color light source used in projection display equipment, and belongs to the technical field of a laser. The circuit comprises a power supply board and a driving board; the driving board comprises a first laser assembly and a second laser assembly, wherein the first laser assembly comprises a plurality of first laser modules which are connected in parallel and a plurality of first voltage-boosting driving modules used for driving the corresponding first laser modules; the first laser modules comprise multiple first lasers connected in series; the second laser assembly comprises a plurality of second laser modules which are connected in parallel and a plurality of second voltage-boosting driving modules used for driving the corresponding second laser modules; and the second laser modules comprise multiple second lasers connected in series. According to the circuit, the voltage-boosting driving modules for driving the corresponding laser modules are reduced under the condition that the total number of the lasers is not changed, so that the power supply loss of the power supply driving circuit of the laser dual-color light source used in the projection display equipment is lowered, and the power supply efficiency is improved.

Description

technical field [0001] The present disclosure relates to the technical field of lasers, in particular to a power drive circuit for a laser two-color light source in a projection display device. Background technique [0002] Laser has been widely used due to its advantages of high brightness and strong directionality. At present, in the laser two-color light source of projection display equipment, the beam generated by the monochromatic laser is mainly used to irradiate the three-primary-color fluorescent wheel, thereby generating the three-primary-color beam, but the primary-color light saturation produced by the monochromatic laser illuminating the three-primary-color fluorescent wheel is not good enough. , the restored pattern color is not bright enough. [0003] In order to make the color of the image more vivid, a scheme of simultaneously using blue lasers and red lasers to generate three primary colors has been proposed. figure 1 It is a schematic diagram of a power d...

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Problems solved by technology

[0004] In order to solve the technical problem of low power supply efficiency of the power drive circuit in the related art, the present disclosure provides a power drive circuit for a laser two-color light source in a projection display device

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