CN113453401A - Voltage adjusting method and device based on LED lamp beads - Google Patents
Voltage adjusting method and device based on LED lamp beads Download PDFInfo
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- CN113453401A CN113453401A CN202010227139.5A CN202010227139A CN113453401A CN 113453401 A CN113453401 A CN 113453401A CN 202010227139 A CN202010227139 A CN 202010227139A CN 113453401 A CN113453401 A CN 113453401A
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Abstract
The document discloses a voltage regulation method and a voltage regulation device based on LED lamp beads, which belong to the field of LED equipment, and the method comprises the following steps: collecting positive and negative voltages of the LED lamp beads; calculating the back pressure value of the lamp bead according to the positive and negative voltage of the LED lamp bead; if the back pressure value is larger than a preset voltage threshold value, regulating the pre-charging voltage and time of the constant-current IC; the back pressure value of the LED lamp bead is in a reasonable range by automatically adjusting the pre-charging voltage and time of the constant-current IC, so that the ghost problem is solved, and the display effect of the LED lamp is improved.
Description
Technical Field
The invention relates to the field of LED (light emitting diode) equipment, in particular to a voltage adjusting method and device based on LED lamp beads.
Background
The LED screen is provided with an anode of a row of lamps of the row tube control screen body and a cathode of a row of lamps of the constant current IC control screen body, the LED screen body is also a scanning screen, due to the influence of parasitic capacitance, when one lamp is lighted, the next lamp of the row can be lighted by mistake, called ghost for short.
Disclosure of Invention
The invention provides a voltage regulation method and device based on an LED lamp bead, which enable the back pressure value of the LED lamp bead to be in a reasonable range by automatically adjusting the pre-charging voltage and time of a constant-current IC, solve the problem of ghost and improve the display effect of an LED lamp.
The technical scheme adopted for solving the technical problems is as follows:
according to one aspect of the present disclosure, there is provided a voltage regulation method based on an LED lamp bead, including:
collecting positive and negative voltages of the LED lamp beads;
calculating the back pressure value of the lamp bead according to the positive and negative voltage of the LED lamp bead;
and if the back voltage value is larger than the preset voltage threshold value, regulating the pre-charging voltage and time of the constant-current IC.
Optionally, the calculating the back pressure value of the lamp bead according to the positive and negative voltages of the LED lamp bead specifically includes:
inputting the positive and negative voltages of the LED lamp beads into a single chip circuit; and calculating the back pressure value of the lamp bead through the single chip microcomputer circuit.
Optionally, the single chip microcomputer circuit includes: the circuit comprises a microcontroller chip UA1, a terminal row JC1, a memory chip UA2, a voltage stabilizer UA3, a crystal oscillator Y1, a resistor R24, a resistor R25, a resistor R26, a capacitor CD4, a capacitor CS1, a capacitor CS2, a capacitor CT6, a capacitor CU66, a capacitor C25, a capacitor C26, a capacitor C27, a capacitor C28 and a capacitor C29; pin 1 of the microcontroller chip UA1 is connected with a 3.3V power supply, pin 3 of the microcontroller chip UA1 is connected with one end of a crystal oscillator Y1 and one end of a capacitor CS1, pin 4 of the microcontroller chip UA1 is connected with the other end of the crystal oscillator Y1 and one end of a capacitor CS2, and the other end of the capacitor CS1 and the other end of the capacitor CS2 are grounded together; pin 5 of microcontroller chip UA1 is connected to node 25M-IN, pin 6 of microcontroller chip UA1 is connected to node 25M-OUT, pin 7 of microcontroller chip UA1 is connected to node ARM-NRST, pin 8 of microcontroller chip UA1 is grounded, pin 9 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 12 of microcontroller chip UA1 is connected to node BTN-LED, pin 13 of microcontroller chip UA1 is connected to node UART-RXD, pin 14 of microcontroller chip UA1 is connected to node txuart-RXD, pin 15 of microcontroller chip UA1 is connected to node ADC1, pin 16 of microcontroller chip UA1 is connected to node ADC2, pin 17 of microcontroller chip UA1 is connected to node ADC3, pin 18 of microcontroller chip UA1 is connected to node ADC4, pin 19 of microcontroller chip UA1 is connected to node TEMP, pin 23 of microcontroller chip UA1 is grounded, pin 24 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 25 of microcontroller chip UA1 is connected to node ncs, pin 26 of microcontroller chip UA1 is connected to node DCLK, pin 27 of microcontroller chip UA1 is connected to node DO, pin 28 of microcontroller chip UA1 is connected to node DI, pin 30 of microcontroller chip UA1 is connected to node MCU-TX, pin 31 of microcontroller chip UA1 is connected to node MCU-RX, pin 34 of microcontroller chip UA1 is connected to node diswo, pin 37 of microcontroller chip UA1 is connected to node SWCLK, pin 44 of microcontroller chip UA1 is grounded, pin 47 of microcontroller chip UA1 is grounded, pin 48 of microcontroller chip UA1 is connected to a 3.3V power supply, and other floating pins of microcontroller chip UA 1; the node ARM-NRST is connected with one end of a resistor R24 and one end of a capacitor CD4, the other end of a capacitor CD4 is grounded, the other end of the resistor R24 is connected with a 3.3V power supply, a pin 1 of a terminal row JC1 is connected with the node ARM-NRST, a pin 2 of the terminal row JC1 is connected with a node UART-RXD, a pin 3 of a terminal row JC1 is connected with a node UART-TXD, a pin 4 of the terminal row JC1 is connected with a node SWDIO and one end of a resistor R26, the other end of a resistor R26 is connected with a 3.3V power supply end, a pin 5 of the terminal row JC1 is connected with a node SWCLK and one end of a resistor R25, the other end of the resistor R25 is grounded, a pin 6 of the terminal row JC1 is grounded, and a pin 8 of the terminal row JC1 is connected with a power supply end VDD; pin 1 of a memory chip UA2 is connected with a node ncs, pin 2 of a memory chip UA2 is connected with a node DO, pin 3 of a memory chip UA2 is connected with a 3.3V power supply end, pin 4 of the memory chip UA2 is grounded, pin 5 of the memory chip UA2 is connected with a node DI, pin 6 of a memory chip UA2 is connected with a node DCLK, pin 7 and pin 8 of a memory chip UA2 are connected with a 3.3V power supply end together, pin 1 of a voltage stabilizer UA3 is grounded together with one end of a capacitor CU66 and one end of a capacitor CT6, pin 3 of the voltage stabilizer UA3 is connected with the other end of a capacitor CU66 and the other end of a capacitor CT6 together and is connected with a VDD power supply end, pin 2 of the voltage stabilizer UA3 is connected with pin 4 and one end of the capacitor C25 together with the 3.3V power supply end, and the other end of the capacitor C25 is grounded; the capacitor C26 is connected in parallel with the capacitor C27, the capacitor C28 and the capacitor C29, and then one end of the capacitor C26 is connected to the 3.3V power supply end, and the other end is grounded.
Optionally, the model of the microcontroller chip UA1 is STM32F030C8LQFP48-0.5, the model of the memory chip UA2 is W25X40-SOP8-1.27, and the model of the voltage stabilizer UA3 is TLV1117 LV-3.3.
Optionally, the adjusting the precharge voltage and the time of the constant current IC specifically includes:
and regulating the pre-charging voltage and time of the constant-current IC to enable the counter voltage value to be smaller than or equal to a preset voltage threshold value.
According to another aspect of the invention, a voltage regulating device based on an LED lamp bead is provided, which includes:
the acquisition module is used for acquiring positive and negative voltages of the LED lamp beads;
the calculation module is used for calculating the back pressure value of the lamp bead according to the positive and negative voltages of the LED lamp bead;
and the adjusting module is used for adjusting the pre-charging voltage and time of the constant-current IC if the back voltage value is greater than a preset voltage threshold value.
The embodiment of the invention provides a voltage regulation method and a voltage regulation device based on an LED lamp bead, wherein the method comprises the following steps: collecting positive and negative voltages of the LED lamp beads; calculating the back pressure value of the lamp bead according to the positive and negative voltage of the LED lamp bead; if the back pressure value is larger than a preset voltage threshold value, regulating the pre-charging voltage and time of the constant-current IC; the back pressure value of the LED lamp bead is in a reasonable range by automatically adjusting the pre-charging voltage and time of the constant-current IC, so that the ghost problem is solved, and the display effect of the LED lamp is improved.
Drawings
Fig. 1 is a flowchart of a voltage adjusting method based on an LED lamp bead according to a first embodiment of the present invention;
fig. 2 is a functional block diagram of a voltage regulation system based on an LED lamp bead according to a first embodiment of the present invention;
fig. 3 is a circuit diagram of a single chip microcomputer circuit according to an embodiment of the present invention;
fig. 4 is a block diagram of an exemplary structure of another voltage adjustment device based on an LED lamp bead according to a second embodiment of the present invention.
The objects, features, and advantages described herein will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer and more obvious, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not restrictive.
Example one
As shown in fig. 1, in this embodiment, a voltage adjusting method based on an LED lamp bead includes:
s10, collecting positive and negative voltages of the LED lamp beads;
s20, calculating the back pressure value of the LED lamp bead according to the anode and cathode voltages of the LED lamp bead;
and S30, if the back voltage value is larger than a preset voltage threshold value, adjusting the pre-charging voltage and time of the constant current IC.
In this embodiment, make the back pressure value of LED lamp pearl in reasonable scope through automatic adjustment constant current IC's precharge voltage and time, solved the ghost problem promptly, improved the display effect of LED lamp again.
In this embodiment, a functional block diagram adopted by the method is shown in fig. 2, and positive and negative voltages of the LED lamp beads are collected through an ADC sampling circuit. And then the sampled voltages are compared by the singlechip, the back pressure value of the lamp bead is calculated, and the pre-charging voltage and time of the constant-current IC are adjusted by the cooperative control system, so that the back pressure value of the LED lamp bead is in a reasonable range.
In this embodiment, the system further includes a display system, which can display the back pressure value calculated by the single chip microcomputer, can display a dynamic change diagram of the back pressure on an interface of the upper computer, and can also display the specific magnitude of the back pressure through the liquid crystal.
In this embodiment, the calculation of the back pressure value of the lamp bead according to the positive and negative voltages of the LED lamp bead specifically includes:
inputting the positive and negative voltages of the LED lamp beads into a single chip circuit; and calculating the back pressure value of the lamp bead through the single chip microcomputer circuit.
As shown in fig. 3, in this embodiment, the one-chip microcomputer circuit includes: the circuit comprises a microcontroller chip UA1, a terminal row JC1, a memory chip UA2, a voltage stabilizer UA3, a crystal oscillator Y1, a resistor R24, a resistor R25, a resistor R26, a capacitor CD4, a capacitor CS1, a capacitor CS2, a capacitor CT6, a capacitor CU66, a capacitor C25, a capacitor C26, a capacitor C27, a capacitor C28 and a capacitor C29; pin 1 of the microcontroller chip UA1 is connected with a 3.3V power supply, pin 3 of the microcontroller chip UA1 is connected with one end of a crystal oscillator Y1 and one end of a capacitor CS1, pin 4 of the microcontroller chip UA1 is connected with the other end of the crystal oscillator Y1 and one end of a capacitor CS2, and the other end of the capacitor CS1 and the other end of the capacitor CS2 are grounded together; pin 5 of microcontroller chip UA1 is connected to node 25M-IN, pin 6 of microcontroller chip UA1 is connected to node 25M-OUT, pin 7 of microcontroller chip UA1 is connected to node ARM-NRST, pin 8 of microcontroller chip UA1 is grounded, pin 9 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 12 of microcontroller chip UA1 is connected to node BTN-LED, pin 13 of microcontroller chip UA1 is connected to node UART-RXD, pin 14 of microcontroller chip UA1 is connected to node txuart-RXD, pin 15 of microcontroller chip UA1 is connected to node ADC1, pin 16 of microcontroller chip UA1 is connected to node ADC2, pin 17 of microcontroller chip UA1 is connected to node ADC3, pin 18 of microcontroller chip UA1 is connected to node ADC4, pin 19 of microcontroller chip UA1 is connected to node TEMP, pin 23 of microcontroller chip UA1 is grounded, pin 24 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 25 of microcontroller chip UA1 is connected to node ncs, pin 26 of microcontroller chip UA1 is connected to node DCLK, pin 27 of microcontroller chip UA1 is connected to node DO, pin 28 of microcontroller chip UA1 is connected to node DI, pin 30 of microcontroller chip UA1 is connected to node MCU-TX, pin 31 of microcontroller chip UA1 is connected to node MCU-RX, pin 34 of microcontroller chip UA1 is connected to node diswo, pin 37 of microcontroller chip UA1 is connected to node SWCLK, pin 44 of microcontroller chip UA1 is grounded, pin 47 of microcontroller chip UA1 is grounded, pin 48 of microcontroller chip UA1 is connected to a 3.3V power supply, and other floating pins of microcontroller chip UA 1; the node ARM-NRST is connected with one end of a resistor R24 and one end of a capacitor CD4, the other end of a capacitor CD4 is grounded, the other end of the resistor R24 is connected with a 3.3V power supply, a pin 1 of a terminal row JC1 is connected with the node ARM-NRST, a pin 2 of the terminal row JC1 is connected with a node UART-RXD, a pin 3 of a terminal row JC1 is connected with a node UART-TXD, a pin 4 of the terminal row JC1 is connected with a node SWDIO and one end of a resistor R26, the other end of a resistor R26 is connected with a 3.3V power supply end, a pin 5 of the terminal row JC1 is connected with a node SWCLK and one end of a resistor R25, the other end of the resistor R25 is grounded, a pin 6 of the terminal row JC1 is grounded, and a pin 8 of the terminal row JC1 is connected with a power supply end VDD; pin 1 of a memory chip UA2 is connected with a node ncs, pin 2 of a memory chip UA2 is connected with a node DO, pin 3 of a memory chip UA2 is connected with a 3.3V power supply end, pin 4 of the memory chip UA2 is grounded, pin 5 of the memory chip UA2 is connected with a node DI, pin 6 of a memory chip UA2 is connected with a node DCLK, pin 7 and pin 8 of a memory chip UA2 are connected with a 3.3V power supply end together, pin 1 of a voltage stabilizer UA3 is grounded together with one end of a capacitor CU66 and one end of a capacitor CT6, pin 3 of the voltage stabilizer UA3 is connected with the other end of a capacitor CU66 and the other end of a capacitor CT6 together and is connected with a VDD power supply end, pin 2 of the voltage stabilizer UA3 is connected with pin 4 and one end of the capacitor C25 together with the 3.3V power supply end, and the other end of the capacitor C25 is grounded; the capacitor C26 is connected in parallel with the capacitor C27, the capacitor C28 and the capacitor C29, and then one end of the capacitor C26 is connected to the 3.3V power supply end, and the other end is grounded.
In this embodiment, the model of the microcontroller chip UA1 is STM32F030C8LQFP48-0.5, the model of the memory chip UA2 is W25X40-SOP8-1.27, and the model of the voltage stabilizer UA3 is TLV1117 LV-3.3.
In this embodiment, the adjusting the precharge voltage and the time of the constant current IC specifically includes:
and regulating the pre-charging voltage and time of the constant-current IC to enable the counter voltage value to be smaller than or equal to a preset voltage threshold value.
As shown in fig. 2, the pre-charge voltage and time of the constant current IC are automatically adjusted by the control system, specifically, the single chip microcomputer can automatically detect the voltage of the lamp bead, then automatically send the parameter value of the register, and adjust the display effect of the screen body by adjusting the register value of the constant current IC.
Example two
As shown in fig. 4, in this embodiment, a voltage regulation device based on LED lamp bead includes:
the acquisition module 10 is used for acquiring positive and negative voltages of the LED lamp beads;
the calculation module 20 is used for calculating the back pressure value of the lamp bead according to the positive and negative voltages of the LED lamp bead;
and the adjusting module 30 is configured to adjust the precharge voltage and time of the constant current IC if the back voltage value is greater than the preset voltage threshold.
In this embodiment, make the back pressure value of LED lamp pearl in reasonable scope through automatic adjustment constant current IC's precharge voltage and time, solved the ghost problem promptly, improved the display effect of LED lamp again.
In this embodiment, a functional block diagram adopted by the method is shown in fig. 2, and positive and negative voltages of the LED lamp beads are collected through an ADC sampling circuit. And then the sampled voltages are compared by the singlechip, the back pressure value of the lamp bead is calculated, and the pre-charging voltage and time of the constant-current IC are adjusted by the cooperative control system, so that the back pressure value of the LED lamp bead is in a reasonable range.
In this embodiment, the system further includes a display system, which can display the back pressure value calculated by the single chip microcomputer, can display a dynamic change diagram of the back pressure on an interface of the upper computer, and can also display the specific magnitude of the back pressure through the liquid crystal.
In this embodiment, the calculation module specifically includes:
inputting the positive and negative voltages of the LED lamp beads into a single chip circuit; and calculating the back pressure value of the lamp bead through the single chip microcomputer circuit.
As shown in fig. 3, in this embodiment, the one-chip microcomputer circuit includes: the circuit comprises a microcontroller chip UA1, a terminal row JC1, a memory chip UA2, a voltage stabilizer UA3, a crystal oscillator Y1, a resistor R24, a resistor R25, a resistor R26, a capacitor CD4, a capacitor CS1, a capacitor CS2, a capacitor CT6, a capacitor CU66, a capacitor C25, a capacitor C26, a capacitor C27, a capacitor C28 and a capacitor C29; pin 1 of the microcontroller chip UA1 is connected with a 3.3V power supply, pin 3 of the microcontroller chip UA1 is connected with one end of a crystal oscillator Y1 and one end of a capacitor CS1, pin 4 of the microcontroller chip UA1 is connected with the other end of the crystal oscillator Y1 and one end of a capacitor CS2, and the other end of the capacitor CS1 and the other end of the capacitor CS2 are grounded together; pin 5 of microcontroller chip UA1 is connected to node 25M-IN, pin 6 of microcontroller chip UA1 is connected to node 25M-OUT, pin 7 of microcontroller chip UA1 is connected to node ARM-NRST, pin 8 of microcontroller chip UA1 is grounded, pin 9 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 12 of microcontroller chip UA1 is connected to node BTN-LED, pin 13 of microcontroller chip UA1 is connected to node UART-RXD, pin 14 of microcontroller chip UA1 is connected to node txuart-RXD, pin 15 of microcontroller chip UA1 is connected to node ADC1, pin 16 of microcontroller chip UA1 is connected to node ADC2, pin 17 of microcontroller chip UA1 is connected to node ADC3, pin 18 of microcontroller chip UA1 is connected to node ADC4, pin 19 of microcontroller chip UA1 is connected to node TEMP, pin 23 of microcontroller chip UA1 is grounded, pin 24 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 25 of microcontroller chip UA1 is connected to node ncs, pin 26 of microcontroller chip UA1 is connected to node DCLK, pin 27 of microcontroller chip UA1 is connected to node DO, pin 28 of microcontroller chip UA1 is connected to node DI, pin 30 of microcontroller chip UA1 is connected to node MCU-TX, pin 31 of microcontroller chip UA1 is connected to node MCU-RX, pin 34 of microcontroller chip UA1 is connected to node diswo, pin 37 of microcontroller chip UA1 is connected to node SWCLK, pin 44 of microcontroller chip UA1 is grounded, pin 47 of microcontroller chip UA1 is grounded, pin 48 of microcontroller chip UA1 is connected to a 3.3V power supply, and other floating pins of microcontroller chip UA 1; the node ARM-NRST is connected with one end of a resistor R24 and one end of a capacitor CD4, the other end of a capacitor CD4 is grounded, the other end of the resistor R24 is connected with a 3.3V power supply, a pin 1 of a terminal row JC1 is connected with the node ARM-NRST, a pin 2 of the terminal row JC1 is connected with a node UART-RXD, a pin 3 of a terminal row JC1 is connected with a node UART-TXD, a pin 4 of the terminal row JC1 is connected with a node SWDIO and one end of a resistor R26, the other end of a resistor R26 is connected with a 3.3V power supply end, a pin 5 of the terminal row JC1 is connected with a node SWCLK and one end of a resistor R25, the other end of the resistor R25 is grounded, a pin 6 of the terminal row JC1 is grounded, and a pin 8 of the terminal row JC1 is connected with a power supply end VDD; pin 1 of a memory chip UA2 is connected with a node ncs, pin 2 of a memory chip UA2 is connected with a node DO, pin 3 of a memory chip UA2 is connected with a 3.3V power supply end, pin 4 of the memory chip UA2 is grounded, pin 5 of the memory chip UA2 is connected with a node DI, pin 6 of a memory chip UA2 is connected with a node DCLK, pin 7 and pin 8 of a memory chip UA2 are connected with a 3.3V power supply end together, pin 1 of a voltage stabilizer UA3 is grounded together with one end of a capacitor CU66 and one end of a capacitor CT6, pin 3 of the voltage stabilizer UA3 is connected with the other end of a capacitor CU66 and the other end of a capacitor CT6 together and is connected with a VDD power supply end, pin 2 of the voltage stabilizer UA3 is connected with pin 4 and one end of the capacitor C25 together with the 3.3V power supply end, and the other end of the capacitor C25 is grounded; the capacitor C26 is connected in parallel with the capacitor C27, the capacitor C28 and the capacitor C29, and then one end of the capacitor C26 is connected to the 3.3V power supply end, and the other end is grounded.
In this embodiment, the model of the microcontroller chip UA1 is STM32F030C8LQFP48-0.5, the model of the memory chip UA2 is W25X40-SOP8-1.27, and the model of the voltage stabilizer UA3 is TLV1117 LV-3.3.
In this embodiment, the adjusting module specifically includes:
and regulating the pre-charging voltage and time of the constant-current IC to enable the counter voltage value to be smaller than or equal to a preset voltage threshold value.
As shown in fig. 2, the pre-charge voltage and time of the constant current IC are automatically adjusted by the control system, specifically, the single chip microcomputer can automatically detect the voltage of the lamp bead, then automatically send the parameter value of the register, and adjust the display effect of the screen body by adjusting the register value of the constant current IC.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and are not to be construed as limiting the scope of the invention. Any modifications, equivalents and improvements which may occur to those skilled in the art without departing from the scope and spirit of the present invention are intended to be within the scope of the claims.
Claims (10)
1. A voltage regulation method based on LED lamp beads is characterized by comprising the following steps:
collecting positive and negative voltages of the LED lamp beads;
calculating the back pressure value of the lamp bead according to the positive and negative voltage of the LED lamp bead;
and if the back voltage value is larger than the preset voltage threshold value, regulating the pre-charging voltage and time of the constant-current IC.
2. The voltage regulation method based on the LED lamp bead according to claim 1, wherein the calculating of the back voltage value of the lamp bead according to the positive and negative voltages of the LED lamp bead specifically comprises:
inputting the positive and negative voltages of the LED lamp beads into a single chip circuit; and calculating the back pressure value of the lamp bead through the single chip microcomputer circuit.
3. The voltage regulation method of claim 2, wherein the single chip circuit comprises: the circuit comprises a microcontroller chip UA1, a terminal row JC1, a memory chip UA2, a voltage stabilizer UA3, a crystal oscillator Y1, a resistor R24, a resistor R25, a resistor R26, a capacitor CD4, a capacitor CS1, a capacitor CS2, a capacitor CT6, a capacitor CU66, a capacitor C25, a capacitor C26, a capacitor C27, a capacitor C28 and a capacitor C29; pin 1 of the microcontroller chip UA1 is connected with a 3.3V power supply, pin 3 of the microcontroller chip UA1 is connected with one end of a crystal oscillator Y1 and one end of a capacitor CS1, pin 4 of the microcontroller chip UA1 is connected with the other end of the crystal oscillator Y1 and one end of a capacitor CS2, and the other end of the capacitor CS1 and the other end of the capacitor CS2 are grounded together; pin 5 of microcontroller chip UA1 is connected to node 25M-IN, pin 6 of microcontroller chip UA1 is connected to node 25M-OUT, pin 7 of microcontroller chip UA1 is connected to node ARM-NRST, pin 8 of microcontroller chip UA1 is grounded, pin 9 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 12 of microcontroller chip UA1 is connected to node BTN-LED, pin 13 of microcontroller chip UA1 is connected to node UART-RXD, pin 14 of microcontroller chip UA1 is connected to node txuart-RXD, pin 15 of microcontroller chip UA1 is connected to node ADC1, pin 16 of microcontroller chip UA1 is connected to node ADC2, pin 17 of microcontroller chip UA1 is connected to node ADC3, pin 18 of microcontroller chip UA1 is connected to node ADC4, pin 19 of microcontroller chip UA1 is connected to node TEMP, pin 23 of microcontroller chip UA1 is grounded, pin 24 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 25 of microcontroller chip UA1 is connected to node ncs, pin 26 of microcontroller chip UA1 is connected to node DCLK, pin 27 of microcontroller chip UA1 is connected to node DO, pin 28 of microcontroller chip UA1 is connected to node DI, pin 30 of microcontroller chip UA1 is connected to node MCU-TX, pin 31 of microcontroller chip UA1 is connected to node MCU-RX, pin 34 of microcontroller chip UA1 is connected to node diswo, pin 37 of microcontroller chip UA1 is connected to node SWCLK, pin 44 of microcontroller chip UA1 is grounded, pin 47 of microcontroller chip UA1 is grounded, pin 48 of microcontroller chip UA1 is connected to a 3.3V power supply, and other floating pins of microcontroller chip UA 1; the node ARM-NRST is connected with one end of a resistor R24 and one end of a capacitor CD4, the other end of a capacitor CD4 is grounded, the other end of the resistor R24 is connected with a 3.3V power supply, a pin 1 of a terminal row JC1 is connected with the node ARM-NRST, a pin 2 of the terminal row JC1 is connected with a node UART-RXD, a pin 3 of a terminal row JC1 is connected with a node UART-TXD, a pin 4 of the terminal row JC1 is connected with a node SWDIO and one end of a resistor R26, the other end of a resistor R26 is connected with a 3.3V power supply end, a pin 5 of the terminal row JC1 is connected with a node SWCLK and one end of a resistor R25, the other end of the resistor R25 is grounded, a pin 6 of the terminal row JC1 is grounded, and a pin 8 of the terminal row JC1 is connected with a power supply end VDD; pin 1 of a memory chip UA2 is connected with a node ncs, pin 2 of a memory chip UA2 is connected with a node DO, pin 3 of a memory chip UA2 is connected with a 3.3V power supply end, pin 4 of the memory chip UA2 is grounded, pin 5 of the memory chip UA2 is connected with a node DI, pin 6 of a memory chip UA2 is connected with a node DCLK, pin 7 and pin 8 of a memory chip UA2 are connected with a 3.3V power supply end together, pin 1 of a voltage stabilizer UA3 is grounded together with one end of a capacitor CU66 and one end of a capacitor CT6, pin 3 of the voltage stabilizer UA3 is connected with the other end of a capacitor CU66 and the other end of a capacitor CT6 together and is connected with a VDD power supply end, pin 2 of the voltage stabilizer UA3 is connected with pin 4 and one end of the capacitor C25 together with the 3.3V power supply end, and the other end of the capacitor C25 is grounded; the capacitor C26 is connected in parallel with the capacitor C27, the capacitor C28 and the capacitor C29, and then one end of the capacitor C26 is connected to the 3.3V power supply end, and the other end is grounded.
4. The LED lamp bead-based voltage regulation method of claim 3, wherein the model number of the microcontroller chip UA1 is STM32F030C8LQFP48-0.5, the model number of the memory chip UA2 is W25X40-SOP8-1.27, and the model number of the voltage stabilizer UA3 is TLV1117 LV-3.3.
5. The voltage adjusting method based on the LED lamp bead according to claim 2, wherein the adjusting of the pre-charging voltage and time of the constant-current IC is specifically:
and regulating the pre-charging voltage and time of the constant-current IC to enable the counter voltage value to be smaller than or equal to a preset voltage threshold value.
6. The utility model provides a voltage regulation device based on LED lamp pearl which characterized in that includes:
the acquisition module is used for acquiring positive and negative voltages of the LED lamp beads;
the calculation module is used for calculating the back pressure value of the lamp bead according to the positive and negative voltages of the LED lamp bead;
and the adjusting module is used for adjusting the pre-charging voltage and time of the constant-current IC if the back voltage value is greater than a preset voltage threshold value.
7. The voltage regulation device based on the LED lamp bead according to claim 6, wherein the calculation module specifically is:
inputting the positive and negative voltages of the LED lamp beads into a single chip circuit; and calculating the back pressure value of the lamp bead through the single chip microcomputer circuit.
8. The LED lamp bead-based voltage regulation device of claim 7, wherein the single-chip microcomputer circuit comprises: the circuit comprises a microcontroller chip UA1, a terminal row JC1, a memory chip UA2, a voltage stabilizer UA3, a crystal oscillator Y1, a resistor R24, a resistor R25, a resistor R26, a capacitor CD4, a capacitor CS1, a capacitor CS2, a capacitor CT6, a capacitor CU66, a capacitor C25, a capacitor C26, a capacitor C27, a capacitor C28 and a capacitor C29; pin 1 of the microcontroller chip UA1 is connected with a 3.3V power supply, pin 3 of the microcontroller chip UA1 is connected with one end of a crystal oscillator Y1 and one end of a capacitor CS1, pin 4 of the microcontroller chip UA1 is connected with the other end of the crystal oscillator Y1 and one end of a capacitor CS2, and the other end of the capacitor CS1 and the other end of the capacitor CS2 are grounded together; pin 5 of microcontroller chip UA1 is connected to node 25M-IN, pin 6 of microcontroller chip UA1 is connected to node 25M-OUT, pin 7 of microcontroller chip UA1 is connected to node ARM-NRST, pin 8 of microcontroller chip UA1 is grounded, pin 9 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 12 of microcontroller chip UA1 is connected to node BTN-LED, pin 13 of microcontroller chip UA1 is connected to node UART-RXD, pin 14 of microcontroller chip UA1 is connected to node txuart-RXD, pin 15 of microcontroller chip UA1 is connected to node ADC1, pin 16 of microcontroller chip UA1 is connected to node ADC2, pin 17 of microcontroller chip UA1 is connected to node ADC3, pin 18 of microcontroller chip UA1 is connected to node ADC4, pin 19 of microcontroller chip UA1 is connected to node TEMP, pin 23 of microcontroller chip UA1 is grounded, pin 24 of microcontroller chip UA1 is connected to a 3.3V power supply, pin 25 of microcontroller chip UA1 is connected to node ncs, pin 26 of microcontroller chip UA1 is connected to node DCLK, pin 27 of microcontroller chip UA1 is connected to node DO, pin 28 of microcontroller chip UA1 is connected to node DI, pin 30 of microcontroller chip UA1 is connected to node MCU-TX, pin 31 of microcontroller chip UA1 is connected to node MCU-RX, pin 34 of microcontroller chip UA1 is connected to node diswo, pin 37 of microcontroller chip UA1 is connected to node SWCLK, pin 44 of microcontroller chip UA1 is grounded, pin 47 of microcontroller chip UA1 is grounded, pin 48 of microcontroller chip UA1 is connected to a 3.3V power supply, and other floating pins of microcontroller chip UA 1; the node ARM-NRST is connected with one end of a resistor R24 and one end of a capacitor CD4, the other end of a capacitor CD4 is grounded, the other end of the resistor R24 is connected with a 3.3V power supply, a pin 1 of a terminal row JC1 is connected with the node ARM-NRST, a pin 2 of the terminal row JC1 is connected with a node UART-RXD, a pin 3 of a terminal row JC1 is connected with a node UART-TXD, a pin 4 of the terminal row JC1 is connected with a node SWDIO and one end of a resistor R26, the other end of a resistor R26 is connected with a 3.3V power supply end, a pin 5 of the terminal row JC1 is connected with a node SWCLK and one end of a resistor R25, the other end of the resistor R25 is grounded, a pin 6 of the terminal row JC1 is grounded, and a pin 8 of the terminal row JC1 is connected with a power supply end VDD; pin 1 of a memory chip UA2 is connected with a node ncs, pin 2 of a memory chip UA2 is connected with a node DO, pin 3 of a memory chip UA2 is connected with a 3.3V power supply end, pin 4 of the memory chip UA2 is grounded, pin 5 of the memory chip UA2 is connected with a node DI, pin 6 of a memory chip UA2 is connected with a node DCLK, pin 7 and pin 8 of a memory chip UA2 are connected with a 3.3V power supply end together, pin 1 of a voltage stabilizer UA3 is grounded together with one end of a capacitor CU66 and one end of a capacitor CT6, pin 3 of the voltage stabilizer UA3 is connected with the other end of a capacitor CU66 and the other end of a capacitor CT6 together and is connected with a VDD power supply end, pin 2 of the voltage stabilizer UA3 is connected with pin 4 and one end of the capacitor C25 together with the 3.3V power supply end, and the other end of the capacitor C25 is grounded; the capacitor C26 is connected in parallel with the capacitor C27, the capacitor C28 and the capacitor C29, and then one end of the capacitor C26 is connected to the 3.3V power supply end, and the other end is grounded.
9. The LED lamp bead-based voltage regulation device of claim 8, wherein the model number of the microcontroller chip UA1 is STM32F030C8LQFP48-0.5, the model number of the memory chip UA2 is W25X40-SOP8-1.27, and the model number of the voltage stabilizer UA3 is TLV1117 LV-3.3.
10. The voltage regulation device based on the LED lamp bead according to claim 7, wherein the regulation module is specifically:
and regulating the pre-charging voltage and time of the constant-current IC to enable the counter voltage value to be smaller than or equal to a preset voltage threshold value.
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| CN201878376U (en) * | 2010-10-22 | 2011-06-22 | 重庆三弓科技发展有限公司 | Management control system of streetlight |
| US20120161781A1 (en) * | 2010-12-28 | 2012-06-28 | Hon Hai Precision Industry Co., Ltd. | Measurement circuit for capacitor |
| CN205793572U (en) * | 2016-07-01 | 2016-12-07 | 哈尔滨应通科技有限公司 | Street lighting energy-saving controller based on ARM |
| CN108156722A (en) * | 2018-02-06 | 2018-06-12 | 陈首 | A kind of method that LED illumination lamp circuit overhauls compensation automatically |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201878376U (en) * | 2010-10-22 | 2011-06-22 | 重庆三弓科技发展有限公司 | Management control system of streetlight |
| US20120161781A1 (en) * | 2010-12-28 | 2012-06-28 | Hon Hai Precision Industry Co., Ltd. | Measurement circuit for capacitor |
| CN205793572U (en) * | 2016-07-01 | 2016-12-07 | 哈尔滨应通科技有限公司 | Street lighting energy-saving controller based on ARM |
| CN108156722A (en) * | 2018-02-06 | 2018-06-12 | 陈首 | A kind of method that LED illumination lamp circuit overhauls compensation automatically |
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