Light source device

Abstract

The invention discloses a light source device consisting of a lighting unit, an energy storage unit, a transformer, a switch unit and a control unit; the first end of the lighting unit is coupled to a direct current power supply; the energy storage unit is coupled to the second end of the lighting unit to form a node where a node voltage is generated; the first end of the secondary side of the transformer is coupled to the node, and the first end of the primary side of the transformer is coupled to the direct current power supply; one end of the switch unit is coupled to the second end of the secondary side of the transformer; the control unit generates a control signal according to which the switch unit determines the switching time; when the switch unit operates in a conducting state according to the control signal, the energy storage unit stores energy; and when the switch unit operates in a closed state according to the control signal, the transformer couples the node voltage from the secondary side to the primary side of the transformer to generate a coupling current for releasing energy to the direct current power supply. By utilizing a coil of the transformer, the single control unit controls a plurality of groups of lighting units simultaneously through the transformer in different connecting ways, thereby reducing ripple effects.

Description

technical field [0001] The invention relates to a light source device, which increases the number of light sources and reduces ripple effects through transformer design. Background technique [0002] A general light source device usually has a single control unit, and in the case of a single control unit, it is used to control a single group of light-emitting units to make the light-emitting units generate light. [0003] Therefore, in order to meet the needs of use, if you want to operate multiple groups of light-emitting devices at the same time, the general method is to increase the number of control units correspondingly, so that the number of control units is the same as the number of groups of light-emitting units, so that one control unit can control a group of light-emitting devices correspondingly. unit. However, in this way, not only the use of the circuit area is greatly increased, but also the volume increases, causing inconvenience to the user and increasing th...

AI Technical Summary

Problems solved by technology

But in this way, not only greatly increase the use of the circuit area, but also cause inconvenience to the user when the volume increases, and also increase the production cost

[0004] In addition, if the voltage difference between the input voltage and the two ends of the light-emitting unit is too large, and the switching is frequent, the ripple (Ripple) effect is likely to occur, making the light-emitting unit susceptible to interference

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