CN219302987U - Circuit for configuring power supply identification serial number through hot plug - Google Patents
Circuit for configuring power supply identification serial number through hot plug Download PDFInfo
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- CN219302987U CN219302987U CN202320594865.XU CN202320594865U CN219302987U CN 219302987 U CN219302987 U CN 219302987U CN 202320594865 U CN202320594865 U CN 202320594865U CN 219302987 U CN219302987 U CN 219302987U
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Abstract
The embodiment of the utility model discloses a circuit for configuring a power supply identification serial number through hot plug, which comprises the following components: the device comprises a main control unit and a power supply unit, wherein the main control unit is connected with a product, the power supply unit is connected with the product, the product is provided with five pin feet, and the five pin feet are connected with the main control unit through golden fingers. By implementing the circuit provided by the embodiment of the utility model, the voltage configuration of the product end can be automatically identified, the product testing efficiency is improved, and the product production yield is improved.
Description
Technical Field
The utility model relates to the technical field of hot plug circuits, in particular to a circuit for identifying serial numbers of a hot plug configuration power supply.
Background
The host side of most projects can provide a plurality of power supplies for the product side, and the power supply is provided by setting the voltage value of the power supply for the product side through software of the host side according to the wishes of a designer. On the production line, production line personnel can use the host computer side circuit board of fixed power supply voltage value to carry out the functional test for other low voltage products power supply, because the host computer side can not automatic identification product end's voltage configuration and adaptation voltage give the product, lead to product operating voltage to be higher and break down the internal line and burn out, greatly reduced test efficiency and production yield.
Therefore, a new circuit is necessary to be designed, so that the voltage configuration of the product end is automatically identified, the testing efficiency of the product is improved, and the production yield of the product is improved.
Disclosure of Invention
The utility model aims to provide a circuit for configuring a power supply identification sequence number through hot plug.
In order to solve the technical problems, the aim of the utility model is realized by the following technical scheme: a circuit for configuring a power supply identification sequence number in a hot plug mode is provided, and the circuit comprises: the device comprises a main control unit and a power supply unit, wherein the main control unit is connected with a product, the power supply unit is connected with the product, the product is provided with five pin feet, and the five pin feet are connected with the main control unit through golden fingers.
The further technical scheme is as follows: the main control unit is provided with five terminal pins for being connected with the pin pins, and a resistor is connected between the terminal pins and the main control unit.
The further technical scheme is as follows: the power supply unit comprises a first power supply, a second power supply and a third power supply, wherein the first power supply, the second power supply and the third power supply are respectively connected with the main control unit, and the first power supply, the second power supply and the third power supply are respectively connected with the product.
The further technical scheme is as follows: the power supply unit further comprises a potentiometer, and the potentiometer is connected with the main control unit.
The further technical scheme is as follows: the potentiometer is connected with the first power supply, the second power supply and the third power supply respectively.
The further technical scheme is as follows: the product is also provided with a first end pin; the main control unit is provided with a hot plug detection terminal pin, and the hot plug detection terminal pin is connected with the first terminal pin.
The further technical scheme is as follows: the first pin, the third pin and the fifth pin of the product are grounded.
The further technical scheme is as follows: the second pin and the fourth pin of the product are suspended.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the main control unit and the power supply unit are arranged, the golden finger is arranged in the product, the golden finger is provided with five pin feet, the pin feet are connected with the main control unit, the main control unit is used for configuring three working voltages of the product by identifying the power supply sequence of the pin feet, so that the voltage configuration of the product end is automatically identified, the product testing efficiency is improved, and the product production yield is improved.
The utility model is further described below with reference to the drawings and specific embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a circuit for configuring a power supply identification number in a hot plug manner according to an embodiment of the present utility model;
the figure identifies the description:
10. a main control unit; 20. a power supply unit; 30. and (5) a product.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1, fig. 1 is a circuit for configuring a power supply identification number in a hot plug manner, which is provided by the embodiment of the utility model, and can be applied to SSD test boards, eMMC test boards, UFS test boards and other test board products to automatically identify the voltage configuration of a product end, thereby improving the product testing efficiency and the product production yield.
Referring to fig. 1, the circuit for configuring a power supply identification number by hot plug includes: the device comprises a main control unit 10 and a power supply unit 20, wherein the main control unit 10 is connected with a product 30, the power supply unit 20 is connected with the product 30, the product 30 is provided with five pin feet, and the five pin feet are connected with the main control unit 10 through golden fingers.
In the present embodiment, the master control unit 10 is the STM32H743ZIT, but not limited to the above.
In this embodiment, the first pin power_id0, the third pin power_id2, and the fifth pin power_id4 of the product 30 are grounded. The second pin power_id1 and the fourth pin power_id3 of product 30 hang.
The main control unit 10 controls a potentiometer to adjust the output voltage of the power supply unit 20, detect a hot plug signal and identify a power supply configuration sequence, and the potentiometer adjusts a feedback resistor of the output voltage of the power supply unit 20 so that the power supply unit 20 outputs a power supply product; the power supply configuration sequence is a voltage configuration for distinguishing the needs of different products; the hot plug signal is a condition for triggering the detection of the identification sequence of the main control unit 10.
When hot plug is performed, the host side includes a main control unit 10 and a Power supply unit 20, and the host side configures three working voltages of Power_ [1:3] of the product 30 by identifying a Power supply sequence of Power_ID [0:4 ]. When the product 30 is designed as a PCB, the five pin pins of the Power_ID [0:4] of the golden finger are respectively suspended or grounded according to user definition.
In an embodiment, referring to fig. 1, the main control unit 10 is provided with five pins for connecting with pin pins, and a resistor is connected between the pins and the main control unit 10.
In an embodiment, referring to fig. 1, the power supply unit 20 includes a first power source, a second power source, and a third power source, wherein the first power source, the second power source, and the third power source are respectively connected to the main control unit 10, and the first power source, the second power source, and the third power source are respectively connected to the product 30.
In an embodiment, referring to fig. 1, the power supply unit 20 further includes a potentiometer, and the potentiometer is connected to the main control unit 10.
In an embodiment, referring to fig. 1, the potentiometer is connected to the first power source, the second power source and the third power source, respectively.
In one embodiment, referring to fig. 1, the product 30 is further provided with a first terminal pin; the main control unit 10 is provided with a hot plug detection terminal pin, and the hot plug detection terminal pin is connected with the first terminal pin.
Specifically, when the host and the product 30 are electrically connected, i.e. Hot plugged, by a golden finger, the Hot Plug detection signal hot_plug_detect changes from high level to low level, and after the main control unit 10 recognizes that the Hot Plug signal changes to low level, the power configuration sequence is recognized by the 5 IO pins of the detection_id [0:4] switched to the input mode. When the power_id is connected to GND through the PCB design at the product 30, the master unit 10 recognizes a low level '0' through the detect_id after the hot plug; when the power_id is in the process of hanging the product 30 through the PCB design NC (Not Connect), the master unit 10 recognizes the high level '1' through the detect_id after the hot plug. The Power configuration sequence identified by the main control unit 10 is detectedjd [0:4] =powerjd [0:4] = "01010", the main control unit 10 searches the sequence in an internal Power configuration ID sequence table, voltage values defining the sequence in the sequence table are respectively powerj1=3.3v, powerj2=1.2v, powerj3=1.8v, the main control unit 10 controls a potentiometer through I2C, and output voltages of DCDC1/2/3, namely, the first Power supply, the second Power supply and the third Power supply are respectively adjusted to be 3.3V, 1.2V and 1.8V; when another Power configuration sequence (e.g. power_id [0:4] "11000") is inserted into the host by a golden finger, the Power configuration sequence identified by the master control unit 10 is detect_id [0:4] = power_id [0:4] = "11000", the master control unit 10 searches the sequence in an internal Power configuration ID sequence table, the voltage values of the sequence are defined in the sequence table as power_1=3.3v, power_2=2.5v, power_3=0.8v, and the mcu adjusts DCDC1/2/3, i.e. the output voltages of the first Power supply, the second Power supply, and the third Power supply to 3.3V, 2.5V, and 0.8V respectively through the I2C control potentiometer.
The circuit of the embodiment enables the host terminal to automatically identify and adapt to the working voltages of different products 30 by introducing a hot plug identification power supply configuration sequence, thereby improving the testing efficiency and the production yield of the production line.
When a new power supply sequence is introduced, the MCU firmware needs to be updated to be compatible with the new sequence.
According to the circuit for configuring the power supply identification serial number through hot plug, the main control unit 10 and the power supply unit 20 are arranged, the golden finger is arranged in the product 30, five pin pins are arranged on the golden finger, the pin pins are connected with the main control unit 10, the main control unit 10 configures three working voltages of the product 30 through identifying the power supply sequence of the pin pins, the voltage configuration of the end of the product 30 is automatically identified, the testing efficiency of the product 30 is improved, and the production yield of the product 30 is improved.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (8)
1. A circuit for hot-plug configuration of a power identification sequence number, comprising: the device comprises a main control unit and a power supply unit, wherein the main control unit is connected with a product, the power supply unit is connected with the product, the product is provided with five pin feet, and the five pin feet are connected with the main control unit through golden fingers.
2. The circuit for configuring power identification number through hot plug according to claim 1, wherein the main control unit is provided with five pins for connection with the pin, and a resistor is connected between the pins and the main control unit.
3. The circuit for configuring a power identification number according to claim 1, wherein the power supply unit comprises a first power supply, a second power supply and a third power supply, the first power supply, the second power supply and the third power supply are respectively connected with the main control unit, and the first power supply, the second power supply and the third power supply are respectively connected with the product.
4. A circuit for configuring a power identification number for a hot plug as defined in claim 3, wherein the power supply unit further comprises a potentiometer, the potentiometer being connected to the main control unit.
5. The circuit of claim 4, wherein the potentiometer is connected to the first power source, the second power source, and the third power source, respectively.
6. The circuit for configuring a power identification number for a hot plug of claim 1, wherein the product further comprises a first terminal pin; the main control unit is provided with a hot plug detection terminal pin, and the hot plug detection terminal pin is connected with the first terminal pin.
7. The circuit of claim 1, wherein the first pin, the third pin, and the fifth pin of the product are grounded.
8. The circuit of claim 1 wherein the second pin and the fourth pin of the product are floating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320594865.XU CN219302987U (en) | 2023-03-17 | 2023-03-17 | Circuit for configuring power supply identification serial number through hot plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320594865.XU CN219302987U (en) | 2023-03-17 | 2023-03-17 | Circuit for configuring power supply identification serial number through hot plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219302987U true CN219302987U (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320594865.XU Active CN219302987U (en) | 2023-03-17 | 2023-03-17 | Circuit for configuring power supply identification serial number through hot plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219302987U (en) |
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2023
- 2023-03-17 CN CN202320594865.XU patent/CN219302987U/en active Active
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