Circuit board structure for far-end feedback of power supply

Abstract

The utility model discloses a circuit board structure for power supply far-end feedback in the field of circuit board design, which comprises a power supply copper sheet and a feedback line which are arranged on a power supply plane of a circuit board, the power supply copper sheet comprises a power supply end and a power utilization end, one end of the feedback line is connected with the power supply end, and the other end of the feedback line is connected with the power utilization end. According to the utility model, the problems that the overall thickness of the circuit board is increased and the accuracy and response speed of feedback signals are influenced because the power supply copper sheet and the feedback line are respectively arranged on different wiring layers in the prior art are solved, and the number of wiring lamination layers required by the circuit board can be reduced, so that the production cost is reduced, the overall thickness of the circuit board is reduced, and the production efficiency is improved. Therefore, the circuit board is lighter and thinner, the requirements of modern electronic equipment for miniaturization and light weight can be met, the accuracy of sampling signals is improved, and the stability and response speed of a system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board design, specifically, a kind of circuit board structure of power remote feedback. BACKGROUND

[0002] In the design of circuit board, power management and remote feedback mechanism are the key to ensure stable power supply and efficient operation of system.In the traditional circuit board wiring structure, power copper is usually used to provide stable power voltage, which is laid on a special power layer to form a large area of power plane, thereby reducing resistance and inductance, and improving the efficiency and stability of power distribution.At the same time, in order to monitor the power voltage and ensure it within the preset range, feedback line is introduced to feedback power voltage information from the power end back to the power management circuit for necessary adjustment.

[0003] However, the traditional wiring method often arranges power copper and feedback line on different wiring layers, which not only increases the manufacturing cost of circuit board, but also may cause the increase of overall thickness of circuit board, which is not conducive to miniaturization and lightweight design.Secondly, since power copper and feedback line are located at different layers, electrical connection between them needs to be realized through via or jumper, which may increase the length and complexity of electrical path, thereby affecting the accuracy and response speed of feedback signal.

[0004] The above defects need to be solved. UTILITY MODEL CONTENTS

[0005] In order to solve the problem that the existing power copper and feedback line are arranged on different wiring layers, which increases the overall thickness of circuit board and affects the accuracy and response speed of feedback signal, the utility model provides a kind of circuit board structure of power remote feedback.

[0006] The technical scheme of the utility model is as follows:

[0007] A kind of circuit board structure of power remote feedback, including the power copper and feedback line arranged on the power plane of circuit board, the power copper includes power supply end and power consumption end, one end of the feedback line is connected with the power supply end, the other end of the feedback line is connected with the power consumption end.

[0008] According to the utility model of the above scheme, the shape of the feedback line is similar to the edge line shape of the power copper.

[0009] According to the utility model of the above scheme, there is a gap between the feedback line and the power copper.

[0010] According to the utility model of the above scheme, the width of the gap is 4mil-12mil.

[0011] According to the utility model of the above scheme, the width of the gap is 8 mil.

[0012] According to the utility model of the above scheme, the width of the feedback line is 4 mil~12 mil.

[0013] According to the utility model of the above scheme, the width of the feedback line is 8 mil.

[0014] According to the utility model of the above scheme, it has the beneficial effects of:

[0015] In the circuit board structure of the above power supply remote feedback, the power supply copper skin and the feedback line are arranged on the same power supply plane of the circuit board, which can reduce the wiring stack quantity required by the circuit board, thereby reducing the production cost and further reducing the overall thickness of the circuit board, so that the circuit board is more light and thin, which is beneficial to meet the miniaturization and light weight demand of modern electronic equipment.

[0016] In addition, arranging the power supply copper skin and the feedback line on the same plane can shorten the electrical path between them, and the feedback line can be directly extended from the power supply end to the power consumption end without passing through additional vias or jumper connections, which helps to reduce signal attenuation and interference and improve the accuracy of the sampling signal. In addition, the shorter electrical path makes the signal transmission faster, and the feedback mechanism can respond more quickly to changes in power supply voltage, thereby improving the stability and response speed of the system. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is Figure 1 The enlarged view of part A in the middle;

[0020] Figure 3 It is Figure 1 The enlarged view of part B in the middle.

[0021] In the drawing, 1, power supply plane; 2, power supply copper skin; 21, power supply end; 22, power consumption end; 3, feedback line. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer, the utility model will be described in further detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0023] In the circuit board design, the accuracy of power management and the effectiveness of remote feedback mechanism are the cornerstone of maintaining stable power supply and efficient operation of the system. In the traditional approach, the circuit board wiring often lays the power copper skin on a dedicated power layer to form a large area of power plane, thereby reducing resistance and inductance, and further improving the efficiency and stability of power distribution. At the same time, in order to monitor the power voltage in real time and ensure that it is maintained within the set range, a feedback line is introduced, which is responsible for transmitting the voltage information of the power end back to the power management circuit for timely adjustment. However, the traditional wiring strategy tends to arrange the power copper skin and the feedback line in different wiring levels, which not only increases the manufacturing cost of the circuit board, but also may cause the overall thickness of the circuit board to increase, which is not conducive to miniaturization and lightweight design. In addition, since the two parts are located at different levels, the electrical connection between them has to rely on vias or jumpers, which undoubtedly will lengthen the electrical path and add complexity, thereby adversely affecting the accuracy and response rate of the feedback signal.

[0024] As shown in Figures 1 to 3 To solve the above technical problems, the utility model provides a kind of circuit board structure of power remote feedback, including the power copper skin 2 of being arranged on circuit board power plane 1, feedback line 3, power copper skin 2 includes power supply end 21, power end 22, one end of feedback line 3 is connected with power supply end, the other end of feedback line 3 is connected with power end 22.

[0025] In the embodiment, the power copper skin 2 and the feedback line 3 are arranged on the same power plane 1 of the circuit board, which can reduce the number of wiring layers required by the circuit board, thereby reducing the production cost and the overall thickness of the circuit board, making the circuit board more lightweight and conducive to meeting the needs of modern electronic devices for miniaturization and lightweight design. At the same time, the reduction in the number of wiring layers reduces the steps in the manufacturing process, which helps to improve production efficiency and shorten production cycle.

[0026] In addition, arranging the power copper skin 2 and the feedback line 3 on the same layer can shorten the electrical path between them, and the feedback line 3 can be directly extended from the power supply end 21 to the power end 22 without passing through additional vias or jumper connections, which helps to reduce signal attenuation and interference and improve the accuracy of the sampling signal. In addition, the shorter electrical path makes the signal transmission faster, and the feedback mechanism can respond more quickly to changes in power voltage, thereby improving the stability and response speed of the system.

[0027] In this embodiment, since the path of power plane 1 is actually the path through which the actual power supply current flows, when feedback line 3 runs along power plane 1, it can closely follow the actual flow path of the power supply, thereby capturing the dynamic changes of the power supply. This makes the data obtained by the feedback mechanism more accurate, directly reflecting the actual state of power plane 1. Furthermore, the shape of feedback line 3 is similar to the edge shape of power copper foil 2, allowing feedback line 3 to more effectively "follow" the potential distribution of power copper foil 2, reducing errors that may be introduced due to shape mismatch, and ensuring a high degree of consistency between the feedback signal and the actual power supply condition, thereby improving the accuracy and reliability of the entire power management system. When feedback line 3 can accurately reflect the actual power supply condition, the power management system can more precisely adjust the output voltage and current to meet load requirements while minimizing energy consumption, not only improving the energy efficiency of the device but also helping to extend battery life.

[0028] like Figure 2 , Figure 3 As shown, in this embodiment, a gap exists between the feedback line 3 and the power supply copper foil 2, preventing direct electrical connection between them and thus avoiding potential short-circuit risks. This isolation is particularly important in high-voltage or high-current applications, protecting the circuit from damage and ensuring operator safety. Furthermore, when the feedback line 3 and the power supply copper foil 2 are closely adjacent, capacitive coupling may occur, leading to signal distortion or increased noise. Maintaining an appropriate gap effectively reduces this coupling effect, thereby preserving the purity and integrity of the feedback signal.

[0029] In this embodiment, the gap width is 4mil to 12mil. When the gap width is less than 4mil, the processing difficulty may increase due to limitations in processing accuracy, and it may even fail to meet design requirements. When the gap width is greater than 12mil, it will occupy more circuit board space, which is not conducive to achieving a compact circuit board design. The gap width is designed to be 4mil to 12mil, which ensures processing accuracy and maintains a high level of processing efficiency, helping to reduce the scrap rate and rework rate during the processing, thereby effectively controlling production costs. In addition, an appropriate gap width helps to maintain electrical isolation between the feedback line 3 and the power copper foil 2, reducing potential electromagnetic interference and noise, helping to maintain the purity and integrity of the feedback signal, and improving the accuracy and stability of the power management system.

[0030] In this embodiment, the width of the gap can be designed to be any value in the range of 4mil, 5mil, 6mil, 7mil, 8mil, 9mil, 10mil, 11mil, 12mil, etc. In actual design, the width of the gap can be designed according to actual needs.

[0031] In this embodiment, the width of feedback line 3 is 4mil to 12mil, which provides good impedance matching and ensures that the signal will not experience severe reflection or attenuation due to impedance mismatch during transmission. Furthermore, an excessively wide feedback line 3 may increase capacitive coupling, leading to increased noise on adjacent signal lines. With a width of 4mil to 12mil, the capacitive coupling effect between feedback line 3 and other signal lines is effectively controlled, thus maintaining signal purity and stability. Additionally, an excessively narrow line may increase manufacturing difficulty and scrap rate, while an excessively wide line may occupy more circuit board space. The 4mil to 12mil width of feedback line 3 ensures that its shape and size meet design requirements.

[0032] In this embodiment, the width of the feedback line 3 can be designed to be any value in the range of 4mil, 5mil, 6mil, 7mil, 8mil, 9mil, 10mil, 11mil, 12mil, etc. In actual design, the width of the feedback line 3 can be designed according to actual needs.

[0033] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product is usually placed in during use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0034] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0035] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A power supply remote feedback circuit board structure, characterized by, The power supply copper sheet and the feedback line are arranged on the power supply plane of the circuit board.

2. The power supply remote feedback circuit board structure of claim 1, wherein, The feedback line is similar in shape to the edge line of the power supply copper sheet.

3. The power supply remote feedback circuit board structure of claim 1, wherein, There is a gap between the feedback line and the power supply copper sheet.

4. The power supply remote feedback circuit board structure of claim 3, wherein, The width of the gap is 4-12 mil.

5. The power supply remote feedback circuit board structure of claim 4, wherein, The width of the gap is 8 mil.

6. The power supply remote feedback circuit board structure of claim 1, wherein, The width of the feedback line is 4-12 mil.

7. The power supply remote feedback circuit board structure of claim 6, wherein, The width of the feedback line is 8 mil.

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