CN221151352U - Sampling structure of output voltage in direct current pulse coating power supply - Google Patents
Sampling structure of output voltage in direct current pulse coating power supply Download PDFInfo
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- CN221151352U CN221151352U CN202322787090.0U CN202322787090U CN221151352U CN 221151352 U CN221151352 U CN 221151352U CN 202322787090 U CN202322787090 U CN 202322787090U CN 221151352 U CN221151352 U CN 221151352U
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- electronic switch
- power supply
- mcu
- direct current
- current pulse
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- 239000011248 coating agent Substances 0.000 title claims abstract description 22
- 238000000576 coating method Methods 0.000 title claims abstract description 22
- 238000005070 sampling Methods 0.000 title claims abstract description 20
- 238000007747 plating Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a sampling structure of output voltage in a direct current pulse coating power supply, which comprises the direct current pulse coating power supply, a differential circuit, an electronic switch, an MCU and a voltage dividing circuit, wherein the MCU is connected with the electronic switch, and the electronic switch is connected with the voltage dividing circuit; the differential circuit is respectively connected with the electronic switch and the MCU; the differential circuit, the electronic switch, the MCU and the voltage dividing circuit are all arranged on a direct current pulse coating power supply, the differential circuit (2) samples signals output by the electronic switch (3) and transmits the signals to the MCU (4) after isolating treatment, and the electronic switch (3) selectively samples and holds the output signals of the voltage dividing circuit (5) by receiving the signals of the MCU (4). The utility model reduces the performance requirement of high-speed voltage sampling on design devices and improves the accuracy of the high-speed voltage sampling.
Description
Technical Field
The utility model relates to the field of sampling output voltage by a direct current pulse coating power supply, in particular to a sampling structure of the output voltage in the direct current pulse coating power supply.
Background
The DC pulse film plating power supply system needs high-speed isolation sampling output voltage, and the system responds to the output voltage control and output change in time through the collected voltage.
In the conventional method, differential sampling is carried out through a high-speed precise operational amplifier, the design has high requirements on the output and the precision of the operational amplifier, and the common operational amplifier can only select one of the high-speed and the high precision, so that the requirements on the high-speed and the high precision are difficult to be met simultaneously
Disclosure of Invention
The utility model aims to provide a sampling structure of output voltage in a direct current pulse coating power supply so as to solve the problems in the background technology.
The sampling structure of the output voltage in the direct current pulse coating power supply is realized by the following technical scheme: comprises a direct current pulse coating power supply, a differential circuit, an electronic switch, an MCU and a voltage dividing circuit,
The MCU is connected with the electronic switch, and the electronic switch is connected with the voltage dividing circuit; the differential circuit is respectively connected with the electronic switch and the MCU; the differential circuit, the electronic switch, the MCU and the voltage dividing circuit are all arranged on the direct current pulse coating power supply.
As an optimal technical scheme, the differential circuit samples signals output by the electronic switch and transmits the signals to the MCU after signal isolation processing.
As a preferred technical scheme, the electronic switch selectively samples and holds the output signal of the voltage dividing circuit by receiving the signal of the MCU.
As a preferable technical scheme, the MCU controls the electronic switch to enable and hold signals and receives output signals of the differential circuit.
The plasma load is connected with a direct current pulse coating power supply;
As a preferable technical scheme, the voltage dividing circuit divides and samples the voltage on the plasma load.
The beneficial effects of the utility model are as follows: the utility model has low device requirement, can be realized by using an electronic switch, a precise operational amplifier and a resistor capacitor, and has the MCU in the existing direct current pulse coating power supply without increasing, and the acquisition speed and precision reach higher performance.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of the present utility model;
Fig. 2 is a circuit diagram of the present utility model.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
As shown in fig. 1-2, the sampling structure of output voltage in a dc pulse plating power supply of the present utility model comprises a dc pulse plating power supply 1, a differential circuit 2, an electronic switch 3, an MCU4 and a voltage dividing circuit 5,
The MCU4 is connected with the electronic switch 3, and the electronic switch 3 is connected with the voltage dividing circuit 5; the differential circuit 2 is respectively connected with the electronic switch 3 and the MCU4; the differential circuit 2, the electronic switch 3, the MCU4 and the voltage dividing circuit 5 are all arranged on the direct current pulse coating power supply 1.
The differential circuit 2 samples the signal output by the electronic switch 3 and sends the signal to the MCU4 after the signal isolation process.
Wherein the electronic switch 3 selectively samples and holds the output signal of the voltage dividing circuit 5 by receiving the signal of the MCU4.
Wherein the MCU4 controls the electronic switch 3 to enable and hold signals, and receives the output signals of the differential circuit 2.
In addition, the plasma coating device also comprises a plasma load 6, wherein the plasma load 6 is connected with the direct current pulse coating power supply 1.
Further, the voltage dividing circuit 5 performs voltage division sampling of the voltage on the plasma load 6.
The working principle is as follows:
The sampling method of the output voltage of the direct current pulse coating power supply is characterized in that the voltage on the plasma load is divided and sampled by the voltage dividing circuit, then the MCU enables the voltage dividing circuit when the voltage is output, and the voltage dividing circuit is closed when the voltage is closed, and meanwhile, the signal on the electronic switch is kept. And then the differential circuit isolates the signals on the electronic switch and sends the signals to the MCU.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a sampling structure of output voltage in direct current pulse coating film power, its characterized in that: comprises a direct current pulse coating power supply (1), a differential circuit (2), an electronic switch (3), an MCU (4) and a voltage dividing circuit (5),
The MCU (4) is connected with the electronic switch (3), and the electronic switch (3) is connected with the voltage dividing circuit (5); the differential circuit (2) is respectively connected with the electronic switch (3) and the MCU (4); the differential circuit (2), the electronic switch (3), the MCU (4) and the voltage dividing circuit (5) are all arranged on the direct current pulse coating power supply (1).
2. The structure for sampling output voltage in a dc pulse plating power supply according to claim 1, wherein: the differential circuit (2) samples signals output by the electronic switch (3) and transmits the signals to the MCU (4) after signal isolation processing.
3. The structure for sampling output voltage in a dc pulse plating power supply according to claim 1, wherein: the electronic switch (3) selectively samples and holds the output signal of the voltage dividing circuit (5) by receiving the signal of the MCU (4).
4. The structure for sampling output voltage in a dc pulse plating power supply according to claim 1, wherein: the MCU (4) controls the enabling and maintaining signals of the electronic switch (3) and receives the output signals of the differential circuit (2).
5. The structure for sampling output voltage in a dc pulse plating power supply according to claim 1, wherein: the plasma coating device also comprises a plasma load (6), wherein the plasma load (6) is connected with the direct current pulse coating power supply (1).
6. The structure for sampling output voltage in a dc pulse plating power supply according to claim 1, wherein: the voltage dividing circuit (5) divides and samples the voltage on the plasma load (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322787090.0U CN221151352U (en) | 2023-10-18 | 2023-10-18 | Sampling structure of output voltage in direct current pulse coating power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322787090.0U CN221151352U (en) | 2023-10-18 | 2023-10-18 | Sampling structure of output voltage in direct current pulse coating power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221151352U true CN221151352U (en) | 2024-06-14 |
Family
ID=91426972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322787090.0U Active CN221151352U (en) | 2023-10-18 | 2023-10-18 | Sampling structure of output voltage in direct current pulse coating power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221151352U (en) |
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2023
- 2023-10-18 CN CN202322787090.0U patent/CN221151352U/en active Active
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