CN114137266A - Separable power supply circuit board, test tool and adapter plate - Google Patents
Separable power supply circuit board, test tool and adapter plate Download PDFInfo
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- CN114137266A CN114137266A CN202111180726.4A CN202111180726A CN114137266A CN 114137266 A CN114137266 A CN 114137266A CN 202111180726 A CN202111180726 A CN 202111180726A CN 114137266 A CN114137266 A CN 114137266A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000013461 design Methods 0.000 abstract description 12
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention discloses a separable power supply circuit board, a test tool and a patch panel, wherein the power supply circuit in the test tool is separated to form the separable power supply circuit board, so that the design of a functional circuit is only needed to be considered in the test tool, the wiring layout for a power supply circuit is not needed, and the design difficulty and the cost of the test tool can be reduced. The power supply circuit board is provided with a power supply IC chip which can support a plurality of paths of independent enabling parallel transmission, so that power can be supplied to each module at the same time, and the power supply efficiency is improved. In addition, the power circuit board is also integrated with a digital potentiometer IC chip to adjust a plurality of paths of output voltages which are independently enabled, so that the power supply requirements of different modules can be met. In addition, the power circuit board is also provided with an input end pluggable connector and an output end pluggable connector, so that the power circuit board can be independently and repeatedly used and supports plug and play.
Description
Technical Field
The application relates to the technical field of electronics, especially, relate to a detachable's power supply circuit board, test fixture and keysets.
Background
Due to the continuous progress and development of science and technology in recent years, electronic products tend to be miniaturized, integrated and intelligentized in the future. The test fixture of the electronic product is higher and higher in required function, higher and higher in updating speed, and smaller in size requirement, so that the carrying and the installation are facilitated.
The development and design complexity of test tool hardware is higher and higher, and the required development period is shorter and shorter. Specifically, for the test fixture, the power circuit and the functional circuit are generally integrated on the same circuit board. The power circuit is used for supplying power to the electronic product, and the functional circuit is used for supporting the electronic product to realize various functions, such as photographing, current detection and the like. In addition, in order to improve efficiency, a plurality of power circuits are generally integrated on the test fixture to simultaneously supply power to a plurality of electronic products, so that the circuit design in the test fixture is very complex.
And because electronic product can continuously upgrade and answer market demand, and the electronic product after upgrading does not match with the former functional circuit in the test fixture, in order to match the electronic product after upgrading, need redesign functional circuit, further increased the complexity of test fixture circuit design from this.
Disclosure of Invention
The invention provides a separable power supply circuit board and a test tool, which are used for solving or partially solving the technical problem of complex circuit design caused by the fact that the test tool needs to supply power to a plurality of modules simultaneously.
In order to solve the above technical problem, the present invention provides a separable power supply circuit board for supplying power to a corresponding module, wherein the power supply circuit board is insertable into a test fixture or a patch panel, and the power supply circuit board includes: the digital potentiometer IC chip is connected with the input end of the power supply IC chip;
the input end pluggable connector is connected with the power supply IC chip, the digital potentiometer IC chip is connected with the power supply IC chip, and the output end pluggable connector is connected with the power supply IC chip;
when the power circuit board supplies power to the modules, the power circuit board is inserted into the test tool or the adapter plate, the pluggable connectors at the input end are parallelly introduced into a plurality of independent enabling circuits to be enabled into the power IC chip, the digital potentiometer IC chip adjusts the output voltages of the independent enabling circuits, and the pluggable connectors at the output end output the output voltages of the independent enabling circuits to be output to the test tool or the adapter plate so as to supply power to the modules corresponding to the independent enabling circuits; and when the power supply is finished, the power circuit board is pulled out from the test tool or the adapter plate.
Preferably, both the input end pluggable connector and the power supply IC chip have a plurality of input pins corresponding to each other, and each input pin transmits one path of independent enable.
Preferably, both the output-end pluggable connector and the power IC chip have a plurality of output pins corresponding to each other, and each output pin transmits one path of independent enable.
Preferably, both the digital potentiometer IC chip and the power IC chip have a plurality of feedback pins corresponding to each other, and each feedback pin transmits one path of independent enable.
Preferably, the digital potentiometer IC chip further includes: a first signal pin and a second signal pin; the first signal pin and the second signal pin are connected to the test tool through the pluggable connector of the input end, so that the test tool adjusts the potentiometer resistance value of the digital potentiometer IC chip through the first signal pin and the second signal pin to adjust the output voltage corresponding to independent enabling.
Preferably, the digital potentiometer IC chip further includes: a third signal pin and a fourth signal pin; the third signal pin and the fourth signal pin are connected to the test tool through the pluggable connector at the output end, so that the test tool configures different registers by adjusting the respective high and low levels of the third signal pin and the fourth signal pin.
Preferably, the power circuit board further includes: the power switch IC chip, the power switch IC chip with but input end plug connector all has power supply pin and transmission pin in order to transmit input power.
Preferably, the power switch IC chip and the output pluggable connector both have an alarm pin to generate an alarm signal and transmit the alarm signal.
The invention also discloses a test tool, which comprises: a detachable power supply circuit board of any one of the above technical solutions.
The invention also discloses an adapter plate, comprising: a detachable power supply circuit board of any one of the above technical solutions.
Through one or more technical schemes of the invention, the invention has the following beneficial effects or advantages:
the invention discloses a separable power supply circuit board, a test tool and a patch panel, wherein the power supply circuit in the test tool is separated to form the separable power supply circuit board, so that the design of a functional circuit is only needed to be considered in the test tool, the wiring layout for a power supply circuit is not needed, and the design difficulty and the cost of the test tool can be reduced. The power supply circuit board is provided with a power supply IC chip which can support a plurality of paths of independent enabling parallel transmission, so that power can be supplied to each module at the same time, and the power supply efficiency is improved. In addition, the power circuit board is also integrated with a digital potentiometer IC chip to adjust the output voltages of the plurality of paths of independent enabling, so that the power supply requirements of different modules can be met. In addition, the power circuit board is also provided with an input end pluggable connector and an output end pluggable connector, so that the power circuit board can be independently and repeatedly used and supports plug and play.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 illustrates a schematic connection diagram of a test fixture, an interposer, and a module according to one embodiment of the present invention;
fig. 2 is a schematic structural diagram of a detachable power circuit board according to an embodiment of the invention.
Description of reference numerals: power switch IC chip 1, power IC chip 2, first potentiometre 3, second potentiometre 4, but input plug connector 5, but output plug connector 6.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.
In the course of studying this embodiment, the applicant found that, for electronic products such as modules, although the functions are continuously upgraded, the power consumption requirement is not changed, that is, the power circuit in the test fixture can be reused in practice. Therefore, this embodiment forms the power supply circuit board of a detachable with the power supply circuit in the test fixture independently, so only need consider the design of functional circuit in the test fixture, need not to walk the line overall arrangement to supply circuit again, can reduce the design degree of difficulty and the cost of test fixture.
As shown in fig. 1, the test fixture and the adapter board are generally connected by a pair of male connector J1 and female connector J2, wherein the connectors J1 correspond to PINs (PINs) of the connector J2 one to one. The adapter board and the module are connected through a pair of male connector J3 and female connector J4, wherein the connectors J3 correspond to the PINs of the connector J4 in a one-to-one mode. The connector J2 and the connector J3 both belong to a patch panel, and signals defined by the pins in the connector J2 and the connector J3 are transmitted through the wiring in the patch panel, so that the test tool, the patch panel and the module are connected.
In this embodiment, the separable power circuit board is used for inserting a test fixture or an adapter board to supply power to the module, and the specific structure thereof is shown in fig. 2. In this embodiment, the separable power supply circuit board includes the following components: a power ic (integrated circuit) chip 2, a digital potentiometer ic (integrated circuit) chip, an input pluggable connector 5, an output pluggable connector 6, and a power switch ic (integrated circuit) chip 1. The input end pluggable connector 5, the digital potentiometer IC chip and the output end pluggable connector 6 are all connected with the power supply IC chip 2.
As shown in fig. 2, the pluggable connector 5 at the input end is connected with the power IC chip 2 for introducing a plurality of independent enables into the power IC chip 2.
Specifically, the input-side pluggable connector 5 is provided with a plurality of input pins EN for introducing a plurality of paths of independent enable into the power IC chip 2. The number of the plurality of paths of independent enables is described by taking 5 paths as an example, each input pin introduces one path of independent enable, and the input pins of the pluggable connector 5 at the input end are respectively EN1, EN 2, EN 3, EN 4, and EN 5. Of course, the specific number of the active elements is not limited in this embodiment.
Furthermore, the pluggable input end connector 5 is designed into a single-row pin, a double-row pin and other types of socket in practical application, so as to facilitate plugging and replacement. For example, a single row of pins at 1.27mm pitch, is extremely small in size and does not take up too much space.
And the power supply IC chip 2 is used for transmitting a plurality of paths of independent enables in parallel, and the enables of the paths do not influence each other. The number of the EN pins in the power IC chip 2 is the same as that of the EN pins in the pluggable connector 5 at the input end, and the EN pins correspond to one another. Specifically, the power IC chip 2 is also provided with 5 input pins EN, each input pin can transmit one path of independent enable, and the input pins are EN1, EN 2, EN 3, EN 4, and EN 5, respectively.
Further, the power IC chip 2 is further provided with a plurality of feedback pins FB, such as FB1, FB2, FB3, FB4, FB5, each feedback pin transmits an independent enable. The power supply IC chip 2 is connected with the digital potentiometer IC chip through a plurality of feedback pins FB, so that the digital potentiometer IC chip can adjust the voltage of a plurality of independent enables through a plurality of feedback pins.
Further, a plurality of OUTPUT pins OUTPUT are provided in the power IC chip 2 to connect with the OUTPUT pluggable connector 6. Such as OUTPUT1, OUTPUT2, OUTPUT3, OUTPUT4, OUTPUT5, each OUTPUT pin transmits an independent enable to the OUTPUT-side pluggable connector 6.
The digital potentiometer IC chip is connected with the power supply IC chip 2 and is used for adjusting the output voltage of each of the plurality of independent enabling circuits. Specifically, the digital potentiometer IC chip is also provided with a plurality of feedback pins FB, which are the same in number and in one-to-one correspondence with the plurality of feedback pins FB in the power IC chip 2. Such as FB1, FB2, FB3, FB4, FB 5. It is noted that one or more digital potentiometer IC chips may be used with this embodiment.
As shown in fig. 2, the digital potentiometer IC chip of the present embodiment uses two chips, which are: a first potentiometer 3 and a second potentiometer 4. The first potentiometer 3 is connected to the power supply IC chip 2 using 4 feedback pins FB of FB1, FB2, FB3, FB 4. And the second potentiometer 4 is connected to the power IC chip 2 using a feedback pin FB 5.
In addition, the digital potentiometer IC chip includes a first signal pin SCL and a second signal pin SDA. The first signal pin SCL pin and the second signal pin SDA pin are connected to the test tool through the pluggable connector 5 at the input end, and the test tool adjusts the potentiometer resistance value of the digital potentiometer IC chip through the first signal pin SCL pin and the second signal pin SDA pin, so that the output voltage corresponding to independent enabling is adjusted. Therefore, the output voltages of the circuits can be adjusted and enabled independently.
It should be noted that the plurality of independent enables have their respective output voltages adjusted, and the specific values of the output voltages depend on the power requirements of the module. The output voltage of each path of independent energy can be the same as that of other paths of independent energy, and certainly can be different.
And in order to realize placing a plurality of power supply circuit boards at same test fixture, digital potentiometer IC chip still includes: a third signal pin AD0 and a fourth signal pin AD 1. The third signal pin AD0 and the fourth signal pin AD1 are both potentiometer register address selection pins and each have a high and low level.
The third signal pin AD0 and the fourth signal pin AD1 are connected to the test fixture through the output-side pluggable connector 6. The test fixture configures different registers by adjusting the respective high and low levels of the third signal pin AD0 and the fourth signal pin AD1, so that a plurality of power circuit boards of the present embodiment are placed in the same test fixture.
It is noted that if there are more than two digital potentiometer IC chips, the pins SCL, SDA, AD0, AD1, etc. are commonly used. The specific number of the digital potentiometer IC chips is selected according to actual conditions.
The pluggable connector 6 at the output end is connected with the power supply IC chip and used for outputting a plurality of independent enables. The number of the output pins in the output pluggable connector 6 is the same as that of the output pins in the power supply IC chip 2, and the output pins correspond to each other one by one. In particular, the OUTPUT-side pluggable connector 6 is also provided with OUTPUT pins OUTPUT, such as OUTPUT1, OUTPUT2, OUTPUT3, OUTPUT4, OUTPUT 5.
Furthermore, the pluggable connector 6 at the output end is designed into a single-row pin or a double-row pin in practical application, so as to facilitate plugging and replacing. For example, it is a single row of pins with a 1.27mm pitch, and is extremely small in size and does not take up too much space.
Therefore, if two pluggable connectors in the power circuit board are all in a row socket, two row nuts are reserved on the test tool or the adapter plate to be matched with the power circuit board for use.
When the module needs to supply power, insert test fixture or keysets with power supply circuit board. Taking the test tool as an example, the pluggable connector 5 at the input end and the pluggable connector 6 at the output end are plugged into the corresponding female socket on the test tool. In the power circuit board, a plurality of independent enables are parallelly introduced into the power IC chip 2 through the pluggable connector 5 at the input end, the output voltages of the independent enables are adjusted through the digital potentiometer IC chip, and the output voltages of the independent enables are output to a test tool or a patch panel through the pluggable connector 6 at the output end so as to supply power to the modules corresponding to the independent enables. And when the power supply is finished, the power circuit board is pulled out from the test tool or the adapter plate.
The connection relation and the implementation principle of each device in the separable power circuit board are adopted, so that the power circuit board is provided with the power IC chip 2 which can support a plurality of paths of independent enabling parallel transmission, power can be supplied to each module at the same time, and the power supply efficiency is improved. In addition, the power circuit board is also integrated with a digital potentiometer IC chip to adjust a plurality of paths of output voltages which are independently enabled, so that the power supply requirements of different modules can be met. In addition, an input end pluggable connector 5 and an output end pluggable connector 6 are also arranged, so that the power circuit board can be independently and repeatedly used and can support plug and play.
In the following embodiments, an overload prevention design in the power supply circuit board is described. The power supply circuit board also needs to be connected with a power supply to work, and in the process of connecting the power supply, the situation that the power supply circuit board is burnt out due to overload of the input power supply can occur. Therefore, in order to protect the power circuit board, the power circuit board is further provided with: power switch IC chip 1. The main function of the circuit board is current limiting so as to protect the power circuit board.
Specifically, the power switch IC chip 1 and the input-side pluggable connector 5 both have a power supply pin Vin for transmitting an input power to supply power to the power circuit board. Further, both the POWER switch IC chip 1 and the POWER IC chip 2 have a POWER pin POWER for transmitting the input POWER. At this time, the input POWER is input into the POWER switch IC chip 1 through the POWER supply pin Vin in the input end pluggable connector 5, and is transmitted to the POWER IC chip 2 through the transmission pin POWER, so as to provide the required electric energy for the POWER IC chip 2 and the digital potentiometer IC chip.
In addition, in order to protect the power circuit board, the power switch IC chip 1 and the output pluggable connector 6 both have an alarm pin ALERT, when the current passing through the power switch IC chip 1 exceeds a limited current value, or when the temperature on the power switch IC chip 1 exceeds a limited temperature value, the signal of the alarm pin ALERT will be converted from a high level to a low level, the low level is an alarm signal, and the alarm signal is transmitted to the test tool through the output pluggable connector 6, so that the test tool can give an alarm and/or cut off the input power supply. For example, the test fixture may control a buzzer therein to sound an alarm, or the test fixture may control to cut off the input power of the power supply pin Vin.
It is noted that the power switch IC chip 1, the power IC chip 2, the input pluggable connector 5, and the like also have a ground pin GND. The same pin numbers in each device are omitted from fig. 2 to simplify fig. 2.
The circuit board can parallelly output a plurality of circuits of voltages to meet the power consumption requirements of different modules, when the modules need to supply power, the power supply circuit board can be directly inserted into the adapter plate to supply power for the modules, and the power supply circuit board can be pulled out after being used, and can be used in a plug-and-play manner, not only can be independently and repeatedly used, but also can prevent an input power supply from being overloaded, and avoid burning the power supply circuit board.
Based on the same inventive concept as one or more of the above embodiments, the present embodiment discloses a test fixture, including: the detachable power circuit board described in any of the above embodiments.
Specifically, the test fixture and the adapter board are generally connected by a pair of male connector J1 and female connector J2, wherein the connector J1 corresponds to the PINs (PINs) of the connector J2 one to one. The test fixture is also provided with two row nuts which are respectively matched with the two row sockets of the input end pluggable connector 5 and the output end pluggable connector 6 on the power circuit board. Particularly, when the module needs to supply power, the power circuit board is plugged into the test tool, and the test tool is connected to the module through the adapter plate to supply power. If the function of module is updated, then only need consider the layout of new function circuit in the test fixture and walk the line, need not to walk the line layout to supply circuit again, only need during the power supply again with this power supply circuit board peg graft test fixture can, can greatly reduce test fixture's the design degree of difficulty and cost.
It should be noted that the power circuit board is not limited to be used in a test fixture, and if the module only has a power supply requirement, the power circuit board can be plugged into an adapter board.
Based on the same inventive concept as one or more of the above embodiments, the present embodiment discloses an interposer, which includes: the detachable power circuit board described in any of the above embodiments.
Specifically, the adapter board and the module are connected through a pair of male connector J3 and female connector J4, wherein the PINs of the connectors J3 and J4 correspond one to one. In addition, the adapter plate is also provided with two row nuts which are respectively matched with two row sockets of the input end pluggable connector 5 and the output end pluggable connector 6 on the power circuit board.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The utility model provides a detachable's power supply circuit board for the module power supply that corresponds, its characterized in that, power supply circuit board can insert test fixture or keysets, power supply circuit board includes: the digital potentiometer IC chip is connected with the input end of the power supply IC chip;
the input end pluggable connector is connected with the power supply IC chip, the digital potentiometer IC chip is connected with the power supply IC chip, and the output end pluggable connector is connected with the power supply IC chip;
when the power circuit board supplies power to the modules, the power circuit board is inserted into the test tool or the adapter plate, the pluggable connectors at the input end are parallelly introduced into a plurality of independent enabling circuits to be enabled into the power IC chip, the digital potentiometer IC chip adjusts the output voltages of the independent enabling circuits, and the pluggable connectors at the output end output the output voltages of the independent enabling circuits to be output to the test tool or the adapter plate so as to supply power to the modules corresponding to the independent enabling circuits; and when the power supply is finished, the power circuit board is pulled out from the test tool or the adapter plate.
2. The power circuit board of claim 1, wherein said input pluggable connector and said power IC chip both have a plurality of input pins corresponding to each other, each of said input pins transmitting an independent enable.
3. The power circuit board of claim 1, wherein said output pluggable connector and said power IC chip both have a plurality of output pins corresponding to each other, each of said output pins transmitting an independent enable.
4. The power circuit board of claim 1, wherein both the digital potentiometer IC chip and the power IC chip have a plurality of feedback pins corresponding to each other, each of the feedback pins transmitting an independent enable.
5. The power circuit board of claim 4, wherein the digital potentiometer IC chip further comprises: a first signal pin and a second signal pin;
the first signal pin and the second signal pin are connected to the test tool through the pluggable connector of the input end, so that the test tool adjusts the potentiometer resistance value of the digital potentiometer IC chip through the first signal pin and the second signal pin to adjust the output voltage corresponding to independent enabling.
6. The power circuit board of claim 5, wherein the digital potentiometer IC chip further comprises: a third signal pin and a fourth signal pin;
the third signal pin and the fourth signal pin are connected to the test tool through the pluggable connector at the output end, so that the test tool configures different registers by adjusting the respective high and low levels of the third signal pin and the fourth signal pin.
7. The power supply circuit board according to claim 1, wherein the power supply circuit board further comprises: the power switch IC chip, the power switch IC chip with but input end plug connector all has power supply pin and transmission pin in order to transmit input power.
8. The power circuit board of claim 7, wherein said power switch IC chip and said output pluggable connector each have an alarm pin to generate an alarm signal and transmit said alarm signal.
9. The utility model provides a test fixture which characterized in that includes: a detachable power supply circuit board according to any one of claims 1 to 8.
10. An interposer, comprising: a detachable power supply circuit board according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111180726.4A CN114137266A (en) | 2021-10-11 | 2021-10-11 | Separable power supply circuit board, test tool and adapter plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111180726.4A CN114137266A (en) | 2021-10-11 | 2021-10-11 | Separable power supply circuit board, test tool and adapter plate |
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