Key-regulated light source plate

Abstract

The utility model discloses a light source plate regulated and controlled by keys, which comprises a substrate and a plurality of LED lamp beads arranged on the substrate, and one end of the substrate is provided with an input terminal, a driving chip and an indicator lamp circuit; the input terminal is connected with the driving chip, the driving chip is connected with the indicating lamp circuit, and the output end of the driving chip is connected with the LED lamp bead; the other end of the substrate is provided with a control button, a control chip, a control MOS tube and a filter capacitor. The control key is connected with the control chip, the control chip is connected with the LED lamp beads on the substrate by controlling the MOS tube, and the filter capacitor is connected to a pin of the control chip. According to the utility model, the structure arrangement is reasonable, the realization of corresponding indication is facilitated, the use intuition is improved, the use number of electronic components can be reduced, the cost of the whole structure is reduced, the full-bright, full-extinguish and semi-bright explosion flash drive can be realized, the use requirements under different conditions can be met, and the convenience of drive control is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of light source panels, and in particular relates to a light source panel controlled by buttons. Background Art

[0002] The light source board is a common structure, which generally includes a substrate and several lamp beads arranged on the substrate. At the same time, in order to ensure the normal lighting and strobe adjustment of the lamp beads, it generally requires an external driver or a corresponding driving circuit set on the substrate. However, the conventional driver or driving circuit not only has more structural components, which greatly increases the cost of use, but also the lamp beads of the conventional light source board can only be driven in full or full off mode. At the same time, the driving control operation is also relatively inconvenient, so the applicability and practicality are limited. Summary of the Invention

[0003] The purpose of the utility model is to provide a button-controlled light source board which has a reasonable structure and is conducive to reducing costs.

[0004] The technical solution to achieve the purpose of the utility model is a button-controlled light source board, comprising a substrate and a plurality of LED lamp beads arranged on the substrate, wherein one end of the substrate is provided with an input terminal, a driver chip and an indicator light circuit;

[0005] The input terminal is connected to the driver chip, the driver chip is connected to the indicator light circuit, and the output end of the driver chip is connected to the LED lamp bead;

[0006] The other end of the substrate is provided with a control button, a control chip, a control MOS tube and a filter capacitor;

[0007] The control button is connected to the control chip, and the control chip is connected to the LED lamp beads on the substrate through the control MOS tube, and the filter capacitor is connected to the pin of the control chip;

[0008] The control chip is used to realize full-on, full-off or half-on flashing driving control of the LED lamp beads.

[0009] Further preferably, there are two control MOS tubes;

[0010] The drains of the two control MOS tubes are connected to each other and to the cathode of the LED lamp bead, the gates of the two control MOS tubes are connected to the control chip, and the sources of the two control MOS tubes are grounded.

[0011] It is further preferred that: the control chip is a MCU single chip microcomputer.

[0012] More preferably, the input terminal is a USB input terminal.

[0013] The utility model has positive effects: the structure of the utility model is reasonably set up, and it is provided with an indicator light circuit, which is conducive to realizing corresponding indications and improving the intuitiveness of use. In addition, it is provided with a control button, a control chip and a control MOS tube. The control operation can be realized by cooperating with the control button and the control MOS tube, which not only reduces the number of electronic components used and reduces the cost of the overall structure, but also can realize full-on, full-off and half-on flashing drive, which can meet the use requirements of different situations, improves the convenience of drive control, and has strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a specific circuit diagram of the present utility model.

[0017] Reference numerals: substrate 1, LED lamp bead 2, input terminal 3, driver chip 4, indicator light circuit 5, control button 6, control chip 7, control MOS tube 8. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0019] See Figures 1 to 2 As shown, a key-controlled light source board includes a substrate 1 and a plurality of LED lamp beads 2 arranged on the substrate. One end of the substrate is provided with an input terminal 3, a driver chip 4 and an indicator light circuit 5. The board and the LED lamp beads are conventional structures of the prior art and are simply applied. The input terminal is a USB input terminal. The driver chip and the indicator light circuit are mainly used for driving and indicating the light on of the indicator light, which is conducive to improving the intuitiveness of the lighting.

[0020] Furthermore, in this embodiment, the input terminal is connected to the driver chip, and the driver chip is connected to the indicator light circuit, and the output terminal of the driver chip is connected to the LED lamp bead. At the same time, in this embodiment, a control button 6, a control chip 7, a control MOS tube 8, and a filter capacitor are provided at the other end of the substrate. When connected, the control button is connected to the control chip, and the control chip is connected to the LED lamp bead on the substrate through the control MOS tube, and the filter capacitor is connected to the pin of the control chip. The control chip is used to realize full-on, full-off, or half-on flashing drive control of the LED lamp bead. The provision of the control button is conducive to improving the convenience of the control operation and can meet the needs of different situations. In addition, the overall structure uses fewer electronic components, which is conducive to reducing costs compared with traditional ones.

[0021] In this embodiment, there are two control MOS transistors; their drains are connected to the cathode of the LED, their gates are connected to the control chip, and their sources are grounded. The control chip is an MCU. Improving these connections helps reduce component usage and lower costs.

[0022] The utility model has positive effects: the structure of the utility model is reasonably set up, and it is provided with an indicator light circuit, which is conducive to realizing corresponding indications and improving the intuitiveness of use. In addition, it is provided with a control button, a control chip and a control MOS tube. The control operation can be realized by cooperating with the control button and the control MOS tube, which not only reduces the number of electronic components used and reduces the cost of the overall structure, but also can realize full-on, full-off and half-on flashing drive, which can meet the use requirements of different situations, improves the convenience of drive control, and has strong applicability and good practicality.

[0023] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components described in the specification can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description is given here.

[0024] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. However, obvious variations or modifications arising from the essence of the present invention remain within the scope of protection of the present invention.

Claims

1. A light source board controlled by a key, comprising a substrate and a plurality of LED lamp beads arranged on the substrate, characterized in that: One end of the substrate is provided with an input terminal, a driving chip and an indicator light circuit; The input terminal is connected to the driver chip, the driver chip is connected to the indicator light circuit, and the output end of the driver chip is connected to the LED lamp bead; The other end of the substrate is provided with a control button, a control chip, a control MOS tube and a filter capacitor; The control button is connected to the control chip, and the control chip is connected to the LED lamp beads on the substrate through the control MOS tube, and the filter capacitor is connected to the pin of the control chip; The control chip is used to realize full-on, full-off or half-on flashing driving control of the LED lamp beads.

2. The button-controlled light source panel according to claim 1, characterized in that: There are two control MOS tubes; The drains of the two control MOS tubes are connected to each other and to the cathode of the LED lamp bead, the gates of the two control MOS tubes are connected to the control chip, and the sources of the two control MOS tubes are grounded.

3. The button-controlled light source panel according to claim 1, characterized in that: The control chip is a MCU single chip microcomputer.

4. The button-controlled light source panel according to claim 1, characterized in that: The input terminal is a USB input terminal.

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