TWI723350B - Light-emitting device of power supply and light-emitting control method thereof - Google Patents

Abstract

The invention discloses a light-emitting device of a power supply and a light-emitting control method thereof. The light-emitting device includes: a three-color light-emitting diode module, an internal control signal generating unit assembled on the power supply to generate internal control signals, and An automatic signal selection unit; among them, the automatic signal selection unit can select one of the internal control signal and an external control signal as the main control signal, and the external control signal is given priority when receiving the internal control signal and the external control signal as the main control signal. Control signal, on the contrary, when only the internal control signal is received, the internal control signal is selected as the main control signal, and then the main control signal is amplified and output as a drive signal through the drive signal generating unit. The three-color light-emitting diode module is based on the described The driving signal drives the three-color light-emitting diode to emit light; the light-emitting device of the power supply can automatically select the control signal, and the user does not need to switch manually.

Description

Light-emitting device of power supply and light-emitting control method thereof

The invention relates to a light-emitting device of a power supply, in particular to a light-emitting device that can automatically select a control signal and does not require a user to manually switch, and a light-emitting control method thereof.

It is known that many power supplies installed in personal computer mainframes are equipped with light-emitting devices. Most of the light-emitting devices use light-emitting diodes (LEDs) as light-emitting elements. In order to generate colorful light, you can Three-color light-emitting diodes (RGB LED) or LED strips that produce a variety of different light-emitting colors are also used in the light-emitting devices of the power supply; in addition, in order to produce better light and shadow effects, many light-emitting devices are directly integrated The light-emitting element is installed in the fan, and the rotating fan blades are used to generate dynamic light and shadow effects, such as the published "Light-emitting Fan Device Assembly Structure" of the Republic of China Patent No. M526606.

In the early days, the tri-color light-emitting diodes or LED strips installed in the power supply were driven by the controller installed in the power supply to emit light. However, some computer mainframes have built-in motherboards. For computer players, if you use a power supply with a light-emitting device and a computer motherboard with the above-mentioned built-in light-emitting controller at the same time, it is usually necessary to add a selector switch and use it. The user selects the signal source used to drive the RGB LED or the LED light-emitting bar to emit light by manually switching.

This kind of technology can select the source of the signal, such as the approved Republic of China The "control signal selection system" of the new patent certificate number TW M568015U, which proposes a control signal selection system for the light-emitting module, which can choose or choose between multiple control signals from different signal sources according to conditions, according to the corresponding The control signal controls the light-emitting module. The user can customize the control signal so that the light-emitting module can emit light according to the control signal.

The technical problem to be solved by the present invention is to provide a light-emitting device of a power supply and a light-emitting control method thereof.

Based on solving the above technical problems, an embodiment structure of the light emitting device of the power supply of the present invention includes: a three-color light-emitting diode module including: at least one three-color light-emitting diode and a driver, and two three-color light-emitting diodes The polar body is electrically connected to the driver, and the driver drives the three-color light-emitting diode to emit light according to the light-emitting pattern data of a driving signal; an internal control signal generating unit assembled on the power supply to generate an internal control signal; and an automatic signal selection unit , Including: a selection circuit unit and a drive signal generation unit; wherein the selection circuit unit is electrically connected to the internal control signal generation unit for receiving the internal control signal, and the selection circuit unit includes a first connection port for receiving an external The control signal, the selection circuit unit is used to select one of the internal control signal and the external control signal as the main control signal, and the external control signal is preferentially selected as the main control signal when the internal control signal and the external control signal are received at the same time On the contrary, when only the internal control signal is received, the internal control signal is selected as the main control signal; the drive signal generating unit is electrically connected to the selection circuit unit and the driver to amplify and output the main control signal as the drive signal.

The external control signal is a control signal generated by the motherboard of the computer host for controlling the light emission of the three-color light-emitting diode, and the selection circuit unit is electrically connected to the motherboard through the first connection port to receive the external control signal.

A preferred embodiment of the automatic signal selection unit includes a sampling circuit unit. The sampling circuit unit is electrically connected to the first connection port and the selection circuit unit. The control signal is converted into a high-voltage isolated external control signal.

One aspect of the present invention includes a lighting control method of a light-emitting device of a power supply, which is used to control the three-color light-emitting diode module of the light-emitting device to emit light. The control method includes: electrically connecting an external control The signal source and an internal control signal source in the power supply are used to receive an external control signal generated by the external control signal source and an internal signal generated by the internal control signal source; when the internal control signal and external control signal are received The external control signal is preferentially selected as the main control signal; when only the internal control signal is received, the internal control signal is selected as the main control signal; the main control signal is amplified and output as a driving signal; and by driving The signal drives the three-color light-emitting diode module of the light-emitting device to emit light.

The internal control signal includes at least a first light emitting mode data used to control the light emitting color, brightness, and light emitting mode of the three-color light-emitting diode; the external control signal includes at least a first light emitting mode data used to control the light emitting of the three-color light emitting diode A second shot of color, brightness and luminous mode Light mode information.

The light emitting mode includes any one of constant light, flashing, and sequential light.

As a preferred embodiment of the method of the present invention, the external control signal is a control signal generated by the main board of the computer host for controlling the three-color light-emitting diode.

As a preferred embodiment of the method of the present invention, the steps include: converting the external control signal into a high-voltage isolated external control signal by means of high-voltage isolation sampling.

The beneficial effect of the light-emitting device of the power supply and the light-emitting control method of the present invention is that the light-emitting device of the power supply can automatically select the control signal, and the user does not need to switch manually.

10‧‧‧Three-color LED module

11‧‧‧Three-color LED

12‧‧‧Drive

20‧‧‧Internal control signal generating unit

30‧‧‧Automatic signal selection unit

31‧‧‧Select circuit unit

32‧‧‧Drive signal generating unit

33‧‧‧First port

34‧‧‧Sampling circuit unit

FIG. 1 is a functional block diagram of an embodiment of the light-emitting device of the power supply of the present invention.

Figure 2 is a circuit configuration diagram of an embodiment of the light-emitting device of the power supply of the present invention.

Fig. 3 is an operation flowchart of the light-emitting device of the power supply of the present invention and its light-emitting control method.

The positional relationship described in the following embodiments includes: up, down, left and right, unless otherwise specified, all are based on the direction shown by the components in the drawings.

First, please refer to FIG. 1 and FIG. 2, which are functional block diagrams and circuit structure diagrams of an embodiment of the light-emitting device of the power supply of the present invention.

The structure of an embodiment of the light-emitting device of the power supply of the present invention includes: a three-color light-emitting diode module 10, an internal control signal generation unit 20, and an automatic signal selection list Yuan 30.

The three-color light-emitting diode module 10 includes: at least one three-color light-emitting diode 11 and a driver 12 (such as a generally known RGB driver). The three-color light-emitting diode 11 is electrically connected to the driver 12, and the driver 12 Drive the three-color light-emitting diode 11 to emit light according to the light-emitting pattern data of a driving signal.

The internal control signal generating unit 20 is assembled in the power supply to generate an internal control signal.

The automatic signal selection unit 30 includes: a selection circuit unit 31 and a drive signal generation unit 32; the selection circuit unit 31 is electrically connected to the internal control signal generation unit 20 for receiving internal control signals, and the selection circuit unit 31 includes a first connection The port 33 is used to receive an external control signal, and the selection circuit unit 31 is used to select one of the internal control signal and the external control signal as the main control signal, and the external control is preferentially selected when the internal control signal and the external control signal are received at the same time The signal is used as the main control signal. On the contrary, when only the internal control signal is received, the internal control signal is selected as the main control signal; the drive signal generating unit 32 is electrically connected to the selection circuit unit 31 and the driver 12 to connect the main control signal The control signal is amplified and output as the driving signal; wherein the internal control signal at least includes a first light emitting mode data for controlling the light emitting color, brightness and light emitting mode of the three-color light emitting diode 11; the external control signal at least Contains a second light-emitting mode data for controlling the light-emitting color, brightness, and light-emitting mode of the three-color light-emitting diode 11; the light-emitting mode includes any one of constant light, blinking, and sequential light. Therefore, the aforementioned driver 12 drives the three-color light-emitting diode 11 to emit light according to the light-emitting mode data of the driving signal.

As a preferred embodiment of the light-emitting device of the power supply of the present invention, The external control signal is a control signal generated by the motherboard of the computer host for controlling the three-color light-emitting diode 11 to emit light. The selection circuit unit 31 is electrically connected to the motherboard through the first connection port 33 to receive the external control. Signal.

A preferred embodiment of the automatic signal selection unit 30 includes a sampling circuit unit 34. The sampling circuit unit 34 is electrically connected to the first connection port 33 and the selection circuit unit 31. The sampling circuit unit 34 samples through high-voltage isolation. In this way, the external control signal is converted into a high-voltage isolated external control signal.

One aspect of the present invention includes a lighting control method of a light-emitting device of a power supply, which is used to control the three-color light-emitting diode module 10 of the light-emitting device to emit light. The control method includes: electrically connecting to an external device. The control signal source and an internal control signal source in the power supply are used to receive an external control signal generated by the external control signal source and an internal signal generated by the internal control signal source; upon receiving the internal control signal and the external control signal When the external control signal is selected as the main control signal; when only the internal control signal is received, the internal control signal is selected as the main control signal; the main control signal is amplified and output as a driving signal; and The driving signal drives the three-color light-emitting diode module 10 of the light-emitting device to emit light.

As a preferred embodiment of the method of the present invention, the external control signal source may be the motherboard of the computer host, and the external control signal is the control signal generated by the motherboard of the computer host for controlling the three-color light-emitting diodes.

As a preferred embodiment of the method of the present invention, the steps include: converting the external control signal into a high-voltage isolated external control signal by means of high-voltage isolation sampling.

The operation flow of the light-emitting device and light-emitting control method of the power supply of the present invention is shown in Figure 3, including the following actions: 1. The automatic signal selection unit 30 receives an external control signal generated by an external control signal source, and an internal control signal An internal signal generated by the source; 2. Detect whether an external control signal is received, if it is “Yes”, continue to the next action 3. If it is “No”, use the received internal control signal as the main control signal, and then skip To action 4; 3. Convert the external control signal into a high-voltage isolated external control signal through high-voltage isolation sampling, and use it as the main control signal; 4. Use the amplifying output of the main control signal as a driving signal; and 5 The three-color light-emitting diode 11 is driven to emit light according to the light-emitting mode data of the driving signal.

Although the present invention has been disclosed above through the above-mentioned embodiments, it is not intended to limit the present invention. Those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection shall be subject to those defined by the claims of this application.

10‧‧‧Three-color LED module

11‧‧‧Three-color LED

12‧‧‧Drive

20‧‧‧Internal control signal generating unit

30‧‧‧Automatic signal selection unit

31‧‧‧Select circuit unit

32‧‧‧Drive signal generating unit

33‧‧‧First port

34‧‧‧Sampling circuit unit

Claims (10)

A light-emitting device of a power supply includes: a three-color light-emitting diode module, the three-color light-emitting diode module includes: at least one three-color light-emitting diode and a driver, the three-color light-emitting diode Electrically connected to the driver, the driver drives the three-color light-emitting diode to emit light according to the light-emitting pattern data of a driving signal; an internal control signal generating unit assembled on the power supply to generate an internal control signal; and an automatic signal The selection unit includes: a selection circuit unit and a drive signal generation unit; the selection circuit unit is electrically connected to the internal control signal generation unit for receiving the internal control signal, and the selection circuit unit includes a first connection port for receiving An external control signal, the selection circuit unit is used to select one of the internal control signal and the external control signal as the main control signal, and the external control is preferentially selected when the internal control signal and the external control signal are received at the same time Signal as the main control signal, on the contrary, when only the internal control signal is received, the internal control signal is selected as the main control signal; the drive signal generating unit is electrically connected to the selection circuit unit and the driver for controlling the main control signal The signal amplified output is used as the driving signal. The light-emitting device of the power supply according to claim 1, wherein the internal control signal at least includes a first light-emitting mode data for controlling the light-emitting color, brightness, and light-emitting mode of the three-color light-emitting diode; the external control signal It contains at least a second light-emitting mode data for controlling the light-emitting color, brightness and light-emitting mode of the three-color light-emitting diode. The light-emitting device of the power supply according to claim 2, wherein the light-emitting mode includes any one of constant light, blinking, and sequential light. The light-emitting device of the power supply according to claim 2, wherein the external control signal is a control signal generated by the motherboard of the computer host for controlling the light emission of the three-color light-emitting diode, and the selection circuit unit is connected through the first connection The port is electrically connected to the motherboard to receive the external control signal. The light-emitting device of the power supply according to claim 4, wherein the automatic signal selection unit includes a sampling circuit unit, the sampling circuit unit is electrically connected to the first connection port and the selection circuit unit, and the sampling circuit unit is isolated by high voltage The sampling method converts the external control signal into a high-voltage isolated external control signal. A lighting control method of a light-emitting device of a power supply is used to control the three-color light-emitting diode module of the light-emitting device to emit light. The control method includes: electrically connecting an external control signal source and a power supply An internal control signal source inside is used to receive an external control signal generated by an external control signal source and an internal control signal generated by an internal control signal source; priority is given when the internal control signal and the external control signal are received Select the external control signal as the main control signal; select the internal control signal as the main control signal when only the internal control signal is received; use the main control signal to amplify and output as a drive signal; and pass the drive signal The three-color light-emitting diode module of the light-emitting device is driven to emit light. The light emission control method of the light-emitting device of the power supply according to claim 6, wherein the internal control signal at least includes a first light-emitting mode data for controlling the light-emitting color, brightness, and light-emitting mode of the three-color light-emitting diode; The external control signal includes at least a second light-emitting mode data for controlling the light-emitting color, brightness and light-emitting mode of the three-color light-emitting diode. The lighting control method of the lighting device of the power supply according to claim 7, wherein the lighting mode includes any one of constant lighting, blinking, and sequential lighting. According to claim 7, the light-emitting control method of the light-emitting device of the power supply, wherein the external control signal is a control signal generated by a motherboard of a computer host for controlling the three-color light-emitting diode. The light emission control method of the light-emitting device of the power supply according to claim 9 includes: providing a sampling circuit unit that converts the external control signal into a high-voltage isolated external control signal by means of high-voltage isolation sampling.

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