CN118169457A - High-low level automatic judging circuit and circuit system - Google Patents
High-low level automatic judging circuit and circuit system Download PDFInfo
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- CN118169457A CN118169457A CN202410192371.8A CN202410192371A CN118169457A CN 118169457 A CN118169457 A CN 118169457A CN 202410192371 A CN202410192371 A CN 202410192371A CN 118169457 A CN118169457 A CN 118169457A
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- 238000012360 testing method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
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- General Physics & Mathematics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a high-low level automatic judging circuit and a circuit system, wherein the circuit system comprises a public terminal positive electrode, a public terminal negative electrode and an indicator lamp module; the indicator light module is used for lighting according to the level of the connection part of the devices of the circuit board; and the indicator lamp module acquires power through the positive electrode of the public end and is grounded through the negative electrode of the public end. The level of the device connection part of the circuit board can be intuitively and accurately displayed through the indicator lamp module, an additional testing device is not needed, the efficiency of high-low level resolution is improved, the problem of misjudgment caused by personnel operation can be avoided, and the problem of how to intuitively confirm the level of the connection part of the circuit board is solved.
Description
Technical Field
The present invention relates to electronic circuits, and more particularly, to a circuit for automatically determining high and low levels and a circuit system.
Background
Along with the development of integrated circuit technology, the size of components is smaller and smaller, and the layout of components on a circuit board is denser and denser, so that the circuit board with the same area size can have more functions. For devices, circuit boards are typically used to make electrical connections to external devices (e.g., sensors or magnetic switches).
Because components such as the sensor and the magnetic switch are divided into NPN type or PNP type, and different types of components are connected in different ways, the level output of the connection part of the circuit board and the magnetic switch must be judged so as to prevent faults such as component damage caused by misconnection.
However, the existing circuit board must confirm the level at the device connection by means of an external test device (such as a multimeter, etc.), so that a worker needs to spend a lot of time confirming the level at the current device connection during the connection process, resulting in low working efficiency.
Disclosure of Invention
The invention aims to provide a high-low level automatic judging circuit and a circuit system, which are used for solving the problem of how to intuitively confirm the level at the joint of a circuit board.
In order to solve the technical problems, the invention provides a high-low level automatic judging circuit which is applied to a circuit board and comprises a public terminal anode, a public terminal cathode and an indicator lamp module; the indicator light module is used for lighting according to the level of the connection part of the devices of the circuit board; and the indicator lamp module acquires power through the positive electrode of the public end and is grounded through the negative electrode of the public end.
Optionally, in the automatic judging circuit of high and low level, the circuit board has a plurality of device connection parts; the indicator light module comprises a plurality of indicator light units, wherein the indicator light units are arranged in one-to-one correspondence with the connection positions of the devices, so that the lighting indication is carried out on the level at the connection positions of the devices.
Optionally, in the automatic high-low level judging circuit, the indicator light unit includes a first light emitting diode, a second light emitting diode, a first resistor, a second resistor and a third resistor; the first light-emitting diode and the first resistor are connected in parallel with the second resistor, the anode of the first light-emitting diode is connected with a power supply, and the cathode of the first light-emitting diode is connected with the second light-emitting diode and the third resistor through the first resistor in series with the ground; an input is led between the first resistor and the second light emitting diode.
Optionally, in the high-low level automatic judging circuit, the resistance value of the first resistor is 30±2kΩ; the resistance value of the second resistor is 5.6+/-0.2 k omega; the resistance value of the third resistor is 22+/-2 kΩ; the voltage of the power supply is 24V.
Optionally, in the high-low level automatic judging circuit, the indicator light unit is configured to: when no input is provided at the input end, the first light emitting diode and the second light emitting diode are not lightened; when the input end inputs low level, the first light emitting diode is bright, and the second light emitting diode is not bright; when the input end inputs high level, the first light emitting diode is not bright, and the second light emitting diode is bright.
Optionally, in the high-low level automatic judging circuit, the common terminal positive electrode includes a first terminal row and a plurality of first switches connected with the first terminal row; one end of the first switch is connected with a power supply, and the other end of the first switch is connected with one contact end of the first terminal row; the leading-out connection point between the first switch and the first terminal row is connected with the anode of the first light-emitting diode; the public terminal negative electrode comprises a second terminal row and a plurality of second switches connected with the second terminal row; one end of the second switch is grounded, and the other end of the second switch is connected with one contact end of the second terminal strip; and a connection point is led out between the second switch and the second terminal row and is connected with the third resistor so as to enable the third resistor to be grounded.
Optionally, in the high-low level automatic judging circuit, the first switch and the second switch are both single-pole double-throw switches; one path of the first switch is connected with the first terminal row, and the other path of the first switch is suspended; one path of the second switch is connected with the second terminal block, and the other path of the second switch is suspended.
Optionally, in the automatic high-low level judging circuit, a connection point led out between each first switch and the first terminal row is connected with anodes of first light emitting diodes of the plurality of indicator light units; and a connection point led out between each second switch and the second terminal row is connected with a plurality of third resistors of the indicator lamp units.
Optionally, in the automatic high-low level judging circuit, the first switches are in one-to-one correspondence with the second switches, and a corresponding group of the first switches and the plurality of indicator light units connected with the second switches are the same.
In order to solve the technical problems, the invention also provides a circuit system, which comprises a working circuit and the automatic high-low level judging circuit; the working circuit and the high-low level automatic judging circuit are arranged on the same circuit board; the high-low level automatic judging circuit is used for judging the level of the connection part of the devices in the working circuit and carrying out lighting indication according to the judging result.
The invention provides a high-low level automatic judging circuit and a circuit system, wherein the circuit system comprises a public terminal positive electrode, a public terminal negative electrode and an indicator lamp module; the indicator light module is used for lighting according to the level of the connection part of the devices of the circuit board; and the indicator lamp module acquires power through the positive electrode of the public end and is grounded through the negative electrode of the public end. The level of the device connection part of the circuit board can be intuitively and accurately displayed through the indicator lamp module, an additional testing device is not needed, the efficiency of high-low level resolution is improved, the problem of misjudgment caused by personnel operation can be avoided, and the problem of how to intuitively confirm the level of the connection part of the circuit board is solved.
Drawings
Fig. 1 is a schematic diagram of a structure of an automatic high-low level judging circuit according to the present embodiment;
Fig. 2 is a circuit configuration diagram of the indicator light unit provided in the present embodiment;
fig. 3 is a circuit configuration diagram of a common-end positive electrode provided in the present embodiment;
fig. 4 is a circuit configuration diagram of a common terminal negative electrode provided in the present embodiment;
fig. 5 is a circuit configuration diagram of the indicator light module provided in this embodiment.
Detailed Description
The high-low level automatic judging circuit and the circuit system provided by the invention are further described in detail below with reference to the accompanying drawings and the specific embodiments. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention. Furthermore, the structures shown in the drawings are often part of actual structures. In particular, the drawings are shown with different emphasis instead being placed upon illustrating the various embodiments.
It is noted that "first", "second", etc. in the description and claims of the present invention and the accompanying drawings are used to distinguish similar objects so as to describe embodiments of the present invention, and not to describe a specific order or sequence, it should be understood that the structures so used may be interchanged under appropriate circumstances. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment provides a high-low level automatic judging circuit which is applied to a circuit board, as shown in fig. 1, and comprises a public terminal positive electrode, a public terminal negative electrode and an indicator lamp module; the indicator light module is used for lighting according to the level of the connection part of the devices of the circuit board; and the indicator lamp module acquires power through the positive electrode of the public end and is grounded through the negative electrode of the public end.
The high-low level automatic judging circuit provided by the embodiment can intuitively and accurately display the level of the connection part of the devices of the circuit board through the indicator lamp module, does not need an additional testing device, improves the efficiency of high-low level resolution, can also avoid the problem of misjudgment caused by personnel operation, and solves the problem of how to intuitively confirm the level of the connection part of the circuit board.
Further, considering that the circuit board has a plurality of device connection positions, in order to automatically judge the high-low level of each device connection position, in this embodiment, the indicator light module includes a plurality of indicator light units, and the indicator light units are arranged in one-to-one correspondence with the device connection positions, so as to perform lighting indication on the level of the device connection positions.
Specifically, in this embodiment, as shown in fig. 2, the indicator light unit includes a first light emitting diode D1, a second light emitting diode D2, a first resistor R1, a second resistor R2, and a third resistor R3; the first light emitting diode D1 and the first resistor R1 are connected in parallel with the second resistor R2, the anode of the first light emitting diode D1 is connected with a power supply, and the cathode of the first light emitting diode D1 is connected with the second light emitting diode D2 and the third resistor R3 in series through the first resistor R1; an input PIN IN is led between the first resistor R1 and the second light-emitting diode D2.
In practical application, the resistance value of the first resistor R1 is 30+/-2 kΩ; the resistance value of the second resistor R2 is 5.6+/-0.2 k omega; the resistance value of the third resistor R3 is 22+/-2 kΩ; the voltage of the power supply is 24V; the light emitted by the first light emitting diode D1 may be green, and the light emitted by the second light emitting diode D2 may be red. Of course, in other embodiments, when the power sources are different, the resistances of the resistors may be different, and the color of the led may have other colors, which is not limited by the present application.
IN this embodiment, the input PIN IN is used to access a device connection of the circuit board, and the indicator light unit is configured to: when the input end PIN IN is not input, the first light emitting diode D1 and the second light emitting diode D2 are not lightened; when the input end PIN IN inputs a low level, the first light emitting diode D1 is bright and the second light emitting diode D2 is not bright; when the input terminal PIN IN inputs a high level, the first light emitting diode D1 is not lit and the second light emitting diode D2 is lit.
Taking 24V voltage of the power supply, green light emitted by the first light emitting diode D1 and red light emitted by the second light emitting diode D2 as examples, when the input end PIN IN is not input, the red light and the green light are not on; when the input end PIN IN inputs low level (0-4V), the green light is on and the red light is not on; when the input terminal PIN IN inputs a high level (20-24V), the green lamp is not lighted and the red lamp is lighted. Therefore, a worker can directly judge whether the level of the corresponding device connection part is high or low according to the color and the state displayed by the lamp.
Further, in this embodiment, as shown in fig. 3, the common terminal positive electrode includes a first terminal row P9 and a plurality of first switches connected to the first terminal row; one end of the first switch is connected with a power supply, and the other end of the first switch is connected with one contact end of the first terminal row; and a lead-out connection point between the first switch and the first terminal row is connected with the anode of the first light-emitting diode.
In the common terminal positive electrode structure shown in fig. 3, three first switches S15, S16 and S17 are included, wherein S15 is connected to a first contact terminal of the first terminal row P9, S16 is connected to a second contact terminal, and S17 is connected to a third contact terminal; and since the first switch is connected to a 24V power supply, each connection branch leads to a 24V connection point.
Of course, in other embodiments, a greater number of first switches may be provided, and the first terminal rows may have a greater number of contact terminals, thereby implementing a greater number of connection branches, as the application is not limited in this respect.
And, as shown in fig. 4, the common terminal negative electrode includes a second terminal row P10 and a plurality of second switches connected to the second terminal row; one end of the second switch is grounded, and the other end of the second switch is connected with one contact end of the second terminal strip; and a connection point is led out between the second switch and the second terminal row and is connected with the third resistor so as to enable the third resistor to be grounded.
In the common-side negative electrode structure shown in fig. 4, three second switches S18, S19, and S20 are included, wherein S18 is connected to a first contact side of the second terminal row P10, S19 is connected to a second contact side, and S20 is connected to a third contact side; and because the second switch is grounded, each connecting branch leads to a grounded connection point.
Of course, similarly, in other embodiments, a greater number of second switches may be provided, and the second terminal rows may have more contact ends, thereby implementing more connection branches, which the present application is not limited to.
Preferably, in this embodiment, the first switch and the second switch are both single pole double throw switches; one path of the first switch is connected with the first terminal row, and the other path of the first switch is suspended; one path of the second switch is connected with the second terminal block, and the other path of the second switch is suspended. Therefore, the on-off control of each connecting branch circuit at any time can be realized, and the on-off control of each indicator light unit is facilitated; in addition, due to the adoption of the single-pole double-throw switch, whether 24V power supply is stable or not can be measured when the power supply is broken, and the convenience and the stability of the operation of the high-low level automatic judging circuit are improved.
Further, in order to save circuit area and improve efficiency of automatic determination of high and low levels, in this embodiment, a connection point led out between each of the first switches and the first terminal row is connected with anodes of first light emitting diodes of a plurality of the indicator light units; and a connection point led out between each second switch and the second terminal row is connected with a plurality of third resistors of the indicator lamp units.
Preferably, in order to facilitate control of a plurality of indicator light units on the same connection branch, in this embodiment, the first switch corresponds to the second switch one by one, and a corresponding group of the indicator light units connected by the first switch and the second switch are the same.
Specifically, as shown in fig. 5, the indicator light module provided in this embodiment includes 8 indicator light units (divided into 2 rows and 4 columns), where the power ends of the indicator light units in the same row are all connected to the connection point led out by the same first switch, and the ground ends of the indicator light units in the same row are all connected to the connection point led out by the same second switch. For example, the 4 indicator light units of the first row are all connected to 24v_in1 and gnd_in1, and the 4 indicator light units of the second row are all connected to 24v_in2 and gnd_in2.
Referring to fig. 3 and 4, the power terminals of the 4 indicator light units in the first row are synchronously controlled by the first switch S15, and the ground terminals are synchronously controlled by the second switch S18; the power ends of the 4 indicator light units in the second row are synchronously controlled by the first switch S16, and the grounding end is synchronously controlled by the second switch S19; i.e. S15 and S18 one-to-one and S16 and S19 one-to-one. Therefore, synchronous control of a plurality of indicator light units is realized, and judging efficiency and control flexibility are improved.
Of course, in other embodiments, a set of first switches and second switches in a one-to-one correspondence may connect other numbers of indicator light units, such as 8; and when the plurality of indicator light units connected with the first switch and the second switch are not completely identical, a person skilled in the art can also know the implementation manner of turning on or off each indicator light unit under the technical teaching of the present application, which is not described in detail herein.
The embodiment also provides a circuit system, which comprises a working circuit and the high-low level automatic judging circuit; the working circuit and the high-low level automatic judging circuit are arranged on the same circuit board; the high-low level automatic judging circuit is used for judging the level of the connection part of the devices in the working circuit and carrying out lighting indication according to the judging result.
Specifically, an indicator light unit is arranged at the connection position of each device of the working circuit so as to judge the high and low levels of the connection position of the device and light the indicator light. According to different judgment points, the size of the indicator lamp unit can be 20 multiplied by 20mm, so that the level height state of the current judgment point can be clearly, intuitively and accurately displayed while the excessive effective area of the circuit board is not occupied, and the operation of personnel is facilitated.
In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, so that the same similar parts of each embodiment are referred to each other.
The high-low level automatic judging circuit and the circuit system provided by the embodiment comprise a public terminal positive electrode, a public terminal negative electrode and an indicator lamp module; the indicator light module is used for lighting according to the level of the connection part of the devices of the circuit board; and the indicator lamp module acquires power through the positive electrode of the public end and is grounded through the negative electrode of the public end. The level of the device connection part of the circuit board can be intuitively and accurately displayed through the indicator lamp module, an additional testing device is not needed, the efficiency of high-low level resolution is improved, the problem of misjudgment caused by personnel operation can be avoided, and the problem of how to intuitively confirm the level of the connection part of the circuit board is solved.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (10)
1. The high-low level automatic judging circuit is applied to a circuit board and is characterized by comprising a public terminal positive electrode, a public terminal negative electrode and an indicator lamp module; the indicator light module is used for lighting according to the level of the connection part of the devices of the circuit board; and the indicator lamp module acquires power through the positive electrode of the public end and is grounded through the negative electrode of the public end.
2. The automatic high-low level judging circuit according to claim 1, wherein the circuit board has a plurality of device connections; the indicator light module comprises a plurality of indicator light units, wherein the indicator light units are arranged in one-to-one correspondence with the connection positions of the devices, so that the lighting indication is carried out on the level at the connection positions of the devices.
3. The automatic high-low level judging circuit according to claim 2, wherein the indicator light unit includes a first light emitting diode, a second light emitting diode, a first resistor, a second resistor, and a third resistor; the first light-emitting diode and the first resistor are connected in parallel with the second resistor, the anode of the first light-emitting diode is connected with a power supply, and the cathode of the first light-emitting diode is connected with the second light-emitting diode and the third resistor through the first resistor in series with the ground; an input is led between the first resistor and the second light emitting diode.
4. The automatic high-low level judgment circuit according to claim 3, wherein the resistance value of the first resistor is 30±2kΩ; the resistance value of the second resistor is 5.6+/-0.2 k omega; the resistance value of the third resistor is 22+/-2 kΩ; the voltage of the power supply is 24V.
5. The high-low level automatic judging circuit according to claim 3, wherein the indicator light unit is configured to: when no input is provided at the input end, the first light emitting diode and the second light emitting diode are not lightened; when the input end inputs low level, the first light emitting diode is bright, and the second light emitting diode is not bright; when the input end inputs high level, the first light emitting diode is not bright, and the second light emitting diode is bright.
6. The automatic high-low level judging circuit according to claim 3, wherein the common terminal positive electrode includes a first terminal row and a plurality of first switches connected to the first terminal row; one end of the first switch is connected with a power supply, and the other end of the first switch is connected with one contact end of the first terminal row; the leading-out connection point between the first switch and the first terminal row is connected with the anode of the first light-emitting diode; the public terminal negative electrode comprises a second terminal row and a plurality of second switches connected with the second terminal row; one end of the second switch is grounded, and the other end of the second switch is connected with one contact end of the second terminal strip; and a connection point is led out between the second switch and the second terminal row and is connected with the third resistor so as to enable the third resistor to be grounded.
7. The automatic high-low level judging circuit according to claim 6, wherein the first switch and the second switch are both single pole double throw switches; one path of the first switch is connected with the first terminal row, and the other path of the first switch is suspended; one path of the second switch is connected with the second terminal block, and the other path of the second switch is suspended.
8. The automatic high-low level judging circuit according to claim 6, wherein a connection point led out between each of the first switches and the first terminal row is connected with anodes of first light emitting diodes of the plurality of indicator light units; and a connection point led out between each second switch and the second terminal row is connected with a plurality of third resistors of the indicator lamp units.
9. The automatic high-low level judging circuit according to claim 8, wherein the first switches are in one-to-one correspondence with the second switches, and a corresponding group of the first switches and the plurality of the indicator light units connected with the second switches are identical.
10. A circuit system, characterized by comprising an operation circuit and the automatic high-low level judging circuit according to any one of claims 1 to 9; the working circuit and the high-low level automatic judging circuit are arranged on the same circuit board; the high-low level automatic judging circuit is used for judging the level of the connection part of the devices in the working circuit and carrying out lighting indication according to the judging result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410192371.8A CN118169457A (en) | 2024-02-21 | 2024-02-21 | High-low level automatic judging circuit and circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410192371.8A CN118169457A (en) | 2024-02-21 | 2024-02-21 | High-low level automatic judging circuit and circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118169457A true CN118169457A (en) | 2024-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410192371.8A Pending CN118169457A (en) | 2024-02-21 | 2024-02-21 | High-low level automatic judging circuit and circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118169457A (en) |
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2024
- 2024-02-21 CN CN202410192371.8A patent/CN118169457A/en active Pending
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