CN210274682U - PCB structure for optimizing power supply feedback signal - Google Patents

Abstract

The utility model discloses an optimize power feedback signal's PCB structure, including the PCB body, power feedback signal on the PCB body walks the line and surrounds to set up at least round GND signal outward and walks the line, just the width that the GND signal walked the line is 0.3-0.5mm, power feedback signal walk the line with the interval that the GND signal walked the line is greater than 0.3mm, the GND signal walk the line with the removal the power feedback signal walks the interval of other lines of walking outside the line and is greater than 0.15 mm. The utility model discloses it sets up the GND signal and walks the line to surround outside power feedback signal route to shield power feedback signal and other influence of walking between the line signal, can also provide the backward flow route for power feedback signal simultaneously, simple structure, processing design is simple, does not increase extra cost, is fit for extensive popularization and application.

Description

PCB structure for optimizing power supply feedback signal

[ technical field ] A method for producing a semiconductor device

The utility model relates to an optimize power feedback signal's PCB structure.

[ background of the invention ]

Printed Circuit Boards (PCB), also known as PCB boards, are important components of physical support and signal transmission of electronic products. The power supply chip in the PCB generally has a feedback signal, the feedback signal is fed back to an input end from an output end of the power supply chip, the real condition of output is fed back and is told to the input, and the chip adjusts the output quantity in time according to the feedback condition.

In actual production design, it is required to ensure that the feedback signal is not interfered by peripheral signals as much as possible, so that the feedback signal can well feed back real data output by the power supply chip to the input end of the power supply chip. If the feedback signal is influenced by crosstalk of other signals and the like, the feedback signal can feed back unreal conditions to the power supply chip, and therefore the power supply chip can make wrong judgment and wrong instructions.

[ Utility model ] content

In order to overcome the deficiencies of the prior art, the utility model provides an optimize power feedback signal's PCB structure.

The utility model discloses technical scheme as follows:

the PCB structure for optimizing the power supply feedback signal comprises a PCB body and is characterized in that at least one circle of GND signal wiring is arranged outside a power supply feedback signal wiring on the PCB body in a surrounding mode, and the width of the GND signal wiring is 0.3-0.5 mm.

Furthermore, at least one circle of GND signal wires are arranged outside the power supply feedback signal wires on the PCB body in a closed surrounding manner.

Furthermore, a circle of GND signal wiring is arranged outside the power supply feedback signal wiring on the PCB body in a closed surrounding mode.

Further, the distance between the power supply feedback signal wire and the GND signal wire is larger than 0.3 mm.

Further, the distance between the GND signal trace and the other traces except the power supply feedback signal trace is greater than 0.15 mm.

According to above structure the utility model discloses, its beneficial effect lies in, goes the line outer surrounding at power feedback signal and sets up the GND signal and walk the line to shielding power feedback signal and other influence of walking between the line signal can also provide the backward flow route for power feedback signal simultaneously, simple structure, and processing design is simple, does not increase extra cost, is fit for extensive popularization and application.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1, a PCB body; 2. power supply feedback signal routing; 3. GND signal routing; 4. and other tracks.

[ detailed description ] embodiments

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

As shown in fig. 1, a PCB structure for optimizing a power supply feedback signal includes a PCB body 1, a circle of GND signal trace 3 is arranged outside a power supply feedback signal trace 2 on the PCB body 1 in a closed surrounding manner, and the width of the GND signal trace 3 is 0.3-0.5 mm. The GND signal wiring 3 of the power supply feedback signal wiring 2 is enclosed in a closed mode, a shielding effect can be achieved, other wiring signals on the PCB body 1 are isolated, influences are generated on the power supply feedback signal, and a backflow path can be provided for the power supply feedback signal.

In this embodiment, the distance between the power feedback signal trace 2 and the GND signal trace 3 is greater than 0.3mm, so as to prevent the GND signal from affecting the power feedback signal.

Meanwhile, the distance between the GND signal wire 3 and the other wires 4 except the power supply feedback signal wire 2 is still larger than 0.15mm, so as to meet the requirement of processing design.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

The above exemplary description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above manner, and various improvements made by the method concept and technical solution of the present invention or by directly applying the concept and technical solution of the present invention to other occasions without improvement are all within the protection scope of the present invention.

Claims (5)

1. The PCB structure for optimizing the power supply feedback signal comprises a PCB body and is characterized in that at least one circle of GND signal wiring is arranged outside a power supply feedback signal wiring on the PCB body in a surrounding mode, and the width of the GND signal wiring is 0.3-0.5 mm.

2. The PCB structure for optimizing the power supply feedback signal according to claim 1, wherein at least one turn of GND signal trace is arranged around the power supply feedback signal trace on the PCB body in a closed manner.

3. The PCB structure for optimizing the power supply feedback signal as recited in claim 2, wherein a circle of GND signal traces is arranged on the PCB body in a closed surrounding manner outside the power supply feedback signal traces.

4. The PCB structure for optimizing the power supply feedback signal as recited in claim 1, wherein a distance between the power supply feedback signal trace and the GND signal trace is greater than 0.3 mm.

5. The PCB structure for optimizing the power supply feedback signal according to claim 1, wherein the distance between the GND signal trace and the traces other than the power supply feedback signal trace is greater than 0.15 mm.

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