CN210376651U - Winding displacement detection circuit and system - Google Patents
Winding displacement detection circuit and system Download PDFInfo
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- CN210376651U CN210376651U CN201920993336.0U CN201920993336U CN210376651U CN 210376651 U CN210376651 U CN 210376651U CN 201920993336 U CN201920993336 U CN 201920993336U CN 210376651 U CN210376651 U CN 210376651U
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Abstract
The utility model discloses a winding displacement detection circuitry and system, winding displacement detection circuitry includes first voltage comparison module, first step-down module, first pilot lamp, second voltage comparison module, second step-down module, second pilot lamp, third voltage comparison module, third step-down module and electronic switch; the flat cable detection system is composed of a plurality of flat cable detection circuits. Through using first voltage comparison module and second voltage comparison module to contrast the voltage that the electric wire was taken with predetermined reference voltage to the level that will represent the contrast result shows through the pilot lamp, the utility model discloses only need simple combination circuit can realize taking place the wrong detection of exchange to two adjacent electric wires in winding displacement line sequence especially the winding displacement, avoid using complicated devices such as singlechip, need not to develop supporting procedure, have advantages such as low in production cost, simple to use and stability are higher. The utility model discloses the wide application is in electronic circuit technical field.
Description
Technical Field
The utility model belongs to the technical field of the electronic circuit technique and specifically relates to a winding displacement detection circuitry and system.
Background
The flat cable is a wire harness composed of a plurality of wires and is widely applied to the fields of electronic products, industrial control equipment and the like. The flat cable can be formed by combining a plurality of conducting wires with independent insulating sheaths in a bonding, packaging or integrated processing mode, and can also be displayed in a printed circuit mode and the like. In order to facilitate connection, terminals can be pre-installed at two ends of the flat cable. Each wire in the flex has a different electrical definition and therefore the order of each wire is required. In the production process of the flat cable, a sequence error is easy to occur when the terminal is assembled, and particularly, the sequence exchange of two adjacent wires is most common. The electrical performance of the flat cable with the wrong wire sequence will be degraded or even unusable.
The existing wire arranging and sequence detecting technology needs to use a single chip microcomputer and a matched program to generate a specific signal so as to identify a wire sequence, and has the defects of high production cost, complex use, poor stability and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an object of the present invention is to provide a flat cable detection circuit and system.
In one aspect, an embodiment of the present invention includes a flat cable detection circuit, where the flat cable includes a first electric wire and a second electric wire, and the flat cable detection circuit includes a first voltage comparison module, a first voltage reduction module, a first indicator light, a second voltage comparison module, a second voltage reduction module, a second indicator light, a third voltage comparison module, a third voltage reduction module, and an electronic switch;
the first voltage comparison module is connected to a first reference voltage through a first voltage reduction module, the output end of the first voltage comparison module is connected with the first indicator lamp, and the input end of the first voltage comparison module is used for being connected with a first wire;
the second voltage comparison module is connected to a second reference voltage lower than the first reference voltage through a second voltage reduction module, the output end of the second voltage comparison module is connected with the second indicator light, and the input end of the second voltage comparison module is used for being connected with a second wire;
the third voltage comparison module is connected to a first reference voltage through a third voltage reduction module, an output end of the third voltage comparison module is connected with a control end of the electronic switch, an input end of the electronic switch is connected to the first reference voltage, an output end of the electronic switch is connected to a second reference voltage, and the electronic switch is used for loading the first reference voltage to the second voltage comparison module when the electronic switch is switched on.
Further, the first voltage comparison module comprises a first operational amplifier, a third resistor, a thirtieth resistor, a twenty-second resistor and a twenty-sixth resistor, and the first voltage reduction module comprises a seventh resistor, an eighth resistor and a sixth capacitor;
one end of the third resistor is connected with the non-inverting input end of the first operational amplifier, the other end of the third resistor is grounded through the thirtieth resistor, and the other end of the third resistor is used for being connected with a first wire;
the inverting input end of the first operational amplifier is connected to the first reference voltage through the seventh resistor, and the inverting input end of the first operational amplifier is grounded through a parallel circuit formed by the eighth resistor and the sixth capacitor;
the output end of the first operational amplifier is grounded through the twenty-sixth resistor, and the output end of the first operational amplifier is connected with the first indicator lamp through the twenty-twelfth resistor.
Further, the second voltage comparison module comprises a second operational amplifier, a fourth resistor, a thirty-first resistor, a twenty-third resistor and a twenty-seventh resistor, and the second voltage reduction module comprises a ninth resistor, a tenth resistor and a seventh capacitor;
one end of the fourth resistor is connected with the non-inverting input end of the second operational amplifier, the other end of the fourth resistor is grounded through the thirty-first resistor, and the other end of the fourth resistor is used for being connected with a second wire;
the inverting input end of the second operational amplifier is connected to the second reference voltage through the ninth resistor, and the inverting input end of the second operational amplifier is grounded through a parallel circuit formed by the tenth resistor and the seventh capacitor;
the output end of the second operational amplifier is grounded through the twenty-seventh resistor, and the output end of the second operational amplifier is connected with the second indicator light through the twenty-third resistor.
Further, the third voltage comparison module comprises a third operational amplifier, a sixteenth resistor and a seventeenth resistor; the third voltage reduction module comprises a fifteenth resistor; the electronic switch comprises a field effect transistor;
the inverting input end of the third operational amplifier is connected to the first reference voltage through the fifteenth resistor, the non-inverting input end of the third operational amplifier is used for being connected with a second wire, the output end of the third operational amplifier is connected with the grid electrode of the field-effect tube through the sixteenth resistor, and the output end of the third operational amplifier is grounded through the seventeenth resistor;
the drain electrode of the field effect transistor is connected to the first reference voltage, and the source electrode of the field effect transistor is connected with the inverted input end of the second operational amplifier.
Furthermore, the flat cable detection circuit also comprises a flat cable socket; the flat cable socket is provided with a first port and a second port, the first port is connected with the input end of the first voltage comparison module, and the second port is connected with the input end of the second voltage comparison module; the first port is used for connecting a first electric wire, and the second port is used for connecting a second electric wire.
On the other hand, the embodiment of the utility model provides a still include a winding displacement detecting system, it is by a plurality of as the embodiment of the utility model provides a winding displacement detecting circuit constitute.
Further, the first reference voltage corresponding to each flat cable detection circuit decreases sequentially, and the second reference voltage corresponding to each flat cable detection circuit decreases sequentially.
The utility model has the advantages that: through using first voltage comparison module and second voltage comparison module to contrast the voltage that the electric wire was taken with predetermined reference voltage to the level that will represent the contrast result shows through the pilot lamp, the utility model discloses only need simple combination circuit can realize taking place the wrong detection of exchange to two adjacent electric wires in winding displacement line sequence especially the winding displacement, avoid using complicated devices such as singlechip, need not to develop supporting procedure, have advantages such as low in production cost, simple to use and stability are higher.
Drawings
Fig. 1 is a block diagram of a flat cable detection circuit according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a flat cable detection circuit according to an embodiment of the present invention;
fig. 3 is a flowchart of a flat cable detection method according to an embodiment of the present invention.
Detailed Description
Example 1
The present embodiment includes a flat cable detection circuit, which is used to detect a flat cable including a first wire and a second wire. As shown in fig. 1, the flat cable detection circuit includes:
the first voltage comparison module, the first voltage reduction module and the first indicator light; the first voltage comparison module is connected to a first reference voltage through a first voltage reduction module, the output end of the first voltage comparison module is connected with the first indicator lamp, and the input end of the first voltage comparison module is used for being connected with a first wire;
the second voltage comparison module, the second voltage reduction module and the second indicator light; the second voltage comparison module is connected to a second reference voltage lower than the first reference voltage through a second voltage reduction module, the output end of the second voltage comparison module is connected with the second indicator light, and the input end of the second voltage comparison module is used for being connected with a second wire;
the third voltage comparison module, the third voltage reduction module and the electronic switch; the third voltage comparison module is connected to a first reference voltage through a third voltage reduction module, an output end of the third voltage comparison module is connected with a control end of the electronic switch, an input end of the electronic switch is connected to the first reference voltage, an output end of the electronic switch is connected to a second reference voltage, and the electronic switch is used for loading the first reference voltage to the second voltage comparison module when the electronic switch is switched on.
Referring to the circuit shown in fig. 1, the first reference voltage and the second reference voltage may be generated using a regulated power supply, and the first reference voltage is higher than the second reference voltage. The voltage difference between the first reference voltage and the second reference voltage should be large enough, and in this embodiment, the first reference voltage may be set to 12V, and the second reference voltage may be set to 9V.
The first voltage reduction module reduces the first reference voltage and then loads the first reference voltage to the first comparison module, so that the first voltage comparison module obtains a reference voltage slightly lower than 12V, for example 11.8V. The second voltage reduction module reduces the second reference voltage and loads the second reference voltage to the second comparison module, so that the first voltage comparison module obtains a reference voltage slightly lower than 9V, for example 8.8V.
The first voltage comparison module is used for comparing the voltage loaded on the first electric wire with the 11.8V, when the voltage loaded on the first electric wire is larger than 11.8V, the first voltage comparison module can output a level signal to drive the first indicator lamp to emit light, otherwise, the first voltage comparison module does not output the level signal, and the first indicator lamp does not emit light. The second voltage comparison module is used for comparing the voltage loaded on the second electric wire with the 8.8V, when the voltage loaded on the second electric wire is larger than 8.8V, the second voltage comparison module can output a level signal to drive the second indicator light to emit light, otherwise, the second voltage comparison module does not output the level signal, and the second indicator light does not emit light.
When the flat cable detection circuit in this embodiment is used, the correct sequence is defined first. For example, in this embodiment, the first wire connected to the 12V voltage and the second wire connected to the 9V voltage are defined as the correct sequence, and the incorrect sequence refers to the situation other than the correct sequence, such as connecting the first wire to the 9V voltage, connecting the second wire to the 9V voltage, or at least one of the first wire and the second wire being zero to ground.
When the line sequence is correct, the voltage applied to the first electric wire received by the first voltage comparison module is 12V, the first voltage comparison module compares the 12V with the first reference voltage 11.8V after being reduced by the first voltage reduction module, and the first voltage comparison module outputs a level signal to drive the first indicator lamp to emit light because the voltage loaded on the first electric wire is greater than the first reference voltage 11.8V. Meanwhile, the voltage applied by the second wire received by the second voltage comparison module is 9V, the second voltage comparison module compares the 9V with a second reference voltage 8.8V after being reduced by the second voltage reduction module, and the second voltage comparison module outputs a level signal to drive the second indicator light to emit light because the voltage loaded on the second wire is greater than the second reference voltage 8.8V. The first indicator light and the second indicator light are simultaneously lighted to indicate that the wire sequence formed by the first electric wire and the second electric wire is correct.
When an assembly error occurs, and the first wire and the second wire are mistakenly connected with each other at the opposite port, the voltage applied by the first wire to the first voltage comparison module is 9V, and the voltage applied by the second wire to the second voltage comparison module is 12V. At this time, the first voltage comparison module compares the voltage 9V applied by the first wire with the first reference voltage 11.8V stepped down by the first step-down module, and since the voltage loaded on the first wire is less than the first reference voltage 11.8V, the first voltage comparison module does not output a level signal, and the first indicator light does not emit light. Meanwhile, the second wire applies 12V voltage to the third voltage comparison module, the third voltage comparison module compares the 12V voltage applied by the second wire with the first reference voltage 11.8V reduced by the third voltage reduction module, the output end of the third voltage comparison module outputs a level signal to drive the electronic switch to be conducted because the voltage applied by the second wire is greater than that of the third voltage comparison module, and the first reference voltage 12V is loaded to the second voltage comparison module after the electronic switch is conducted. At this time, the second voltage comparison module compares the voltage applied by the second wire with the first reference voltage which is not stepped down, and since the voltage applied by the second wire is not greater than the first reference voltage which is not stepped down, the second voltage comparison module does not output a level signal, and the second indicator light does not emit light. The first indicator light and the second indicator light do not emit light, and the fact that the line sequence formed by the first electric wire and the second electric wire is wrong is indicated.
The flat cable detection circuit in the embodiment has the advantages that the detection of the exchange error of the flat cable sequence, particularly two adjacent electric wires in the flat cable can be realized only by a simple combined circuit, the use of complex devices such as a single chip microcomputer is avoided, a matched program does not need to be developed, and the flat cable detection circuit has the advantages of low production cost, simplicity in use, higher stability and the like.
Further as a preferred implementation, referring to fig. 2, the first voltage comparison module includes a first operational amplifier U1, a third resistor R3, a thirtieth resistor R30, a twenty-second resistor R22, and a twenty-sixth resistor R26, and the first voltage reduction module includes a seventh resistor R7, an eighth resistor R8, and a sixth capacitor C6;
one end of the third resistor R3 is connected with the non-inverting input end of the first operational amplifier U1, the other end of the third resistor R3 is grounded through the thirtieth resistor R30, and the other end of the third resistor R3 is used for connecting a first wire;
the inverting input end of the first operational amplifier U1 is connected to the first reference voltage through the seventh resistor R7, and the inverting input end of the first operational amplifier U1 is connected to the ground through a parallel circuit formed by the eighth resistor R8 and a sixth capacitor C6;
the output end of the first operational amplifier U1 is grounded through the twenty-sixth resistor R26, and the output end of the first operational amplifier U1 is connected with the first indicator light LED1 through the twenty-twelfth resistor R22.
Referring to a circuit shown in a dashed line box labeled "a first voltage comparison module" in fig. 2, the first voltage comparison module is composed of a first operational amplifier U1, a third resistor R3, a thirtieth resistor R30, a twenty-second resistor R22 and a twenty-sixth resistor R26, wherein the third resistor R3 and the thirtieth resistor R30 form a bias circuit, and the twenty-second resistor R22 and the twenty-sixth resistor R26 are used for limiting the voltage and the current of a driving signal output by the first operational amplifier U1. Referring to a circuit shown in a dotted line frame labeled "first voltage dropping block" in fig. 2, the first voltage dropping block is a voltage dividing circuit composed of a seventh resistor R7, an eighth resistor R8, and a sixth capacitor C6, and the voltage dividing circuit may divide the first reference voltage, and a voltage slightly lower than the first reference voltage may be obtained and applied to the first voltage comparing block by adjusting values of the seventh resistor R7 and the eighth resistor R8.
Further as a preferred implementation, referring to fig. 2, the second voltage comparison module includes a second operational amplifier U2, a fourth resistor R4, a thirty-first resistor R31, a twenty-third resistor R23, and a twenty-seventh resistor R27, and the second voltage reduction module includes a ninth resistor R9, a tenth resistor R10, and a seventh capacitor C7;
one end of the fourth resistor R4 is connected with the non-inverting input end of the second operational amplifier U2, the other end of the fourth resistor R4 is grounded through the thirty-one resistor R31, and the other end of the fourth resistor R4 is used for connecting a second wire;
the inverting input end of the second operational amplifier U2 is connected to the second reference voltage through the ninth resistor R9, and the inverting input end of the second operational amplifier U2 is connected to the ground through a parallel circuit formed by the tenth resistor R10 and a seventh capacitor C7;
the output end of the second operational amplifier U2 is grounded through the twenty-seventh resistor R27, and the output end of the second operational amplifier U2 is connected with the second indicator light LED2 through the twenty-third resistor R23.
Referring to the circuit shown in the dashed box labeled "second voltage comparison module" in fig. 2, the second voltage comparison module includes a second operational amplifier U2, a fourth resistor R4, a thirty-first resistor R31, a twenty-third resistor R23, and a twenty-seventh resistor R27, wherein the fourth resistor R4 and the thirty-first resistor R31 form a bias circuit, and the twenty-third resistor R23 and the twenty-seventh resistor R27 are used for limiting the voltage and current of the driving signal output by the second operational amplifier U2. Referring to a circuit shown in a dotted line frame labeled "second voltage dropping block" in fig. 2, the first voltage dropping block is a voltage dividing circuit composed of a ninth resistor R9, a tenth resistor R10, and a seventh capacitor C7, and the voltage dividing circuit may divide the second reference voltage, and by adjusting values of the ninth resistor R9 and the tenth resistor R10, a voltage slightly lower than the second reference voltage may be obtained and applied to the second voltage comparing block.
Further as a preferred implementation, referring to fig. 2, the third voltage comparison module includes a third operational amplifier U3, a sixteenth resistor R16, and a seventeenth resistor R17; the third voltage reduction module comprises a fifteenth resistor R15; the electronic switch comprises a field effect transistor Q1;
an inverting input end of the third operational amplifier U3 is connected to the first reference voltage through the fifteenth resistor R15, a non-inverting input end of the third operational amplifier U3 is used for connecting a second wire, an output end of the third operational amplifier U3 is connected to the gate of the field effect transistor Q1 through the sixteenth resistor R16, and an output end of the third operational amplifier U3 is grounded through the seventeenth resistor R17;
the drain of the field effect transistor Q1 is connected to the first reference voltage, and the source of the field effect transistor Q1 is connected to the inverting input terminal of the second operational amplifier U2.
Referring to the circuit shown in the dashed box labeled "third voltage comparing module" in fig. 2, the third voltage comparing module is composed of a third operational amplifier U3, a sixteenth resistor R16 and a seventeenth resistor R17, wherein the sixteenth resistor R16 and the seventeenth resistor R17 can limit the voltage and current of the driving signal output by the third operational amplifier U3. The third voltage-reducing module is composed of a fifteenth resistor R15. In this embodiment, one NMOS transistor is used as the electronic switch, and when the third voltage comparison module outputs a high level to the gate of the NMOS transistor, the NMOS transistor is turned on, and since the on-resistance of the NMOS transistor is very small, there is almost no voltage drop between the source and the drain of the NMOS transistor, so that the first reference voltage can be directly loaded to the second voltage comparison module without voltage drop.
Further as a preferred embodiment, referring to fig. 2, the flat cable detection circuit further includes a flat cable socket J2; the flat cable socket J2 is provided with a first port and a second port, the first port is connected with the input end of the first voltage comparison module, and the second port is connected with the input end of the second voltage comparison module; the first port is used for connecting a first electric wire, and the second port is used for connecting a second electric wire.
Through setting up winding displacement socket J2, can make things convenient for winding displacement detection circuitry to be connected with the winding displacement that has the port to improve detection efficiency and accuracy.
Example 2
The present embodiment includes a flat cable detection system, which is composed of a plurality of flat cable detection circuits as described in embodiment 1.
The flat cable detection system in this embodiment includes a plurality of units as shown in fig. 1 or fig. 2, each of which can measure whether a pair of wires has been exchanged for a port connected due to an assembly error. By using a flat cable detection system composed of a plurality of units as shown in fig. 1 or fig. 2, it is possible to detect whether the order of a flat cable composed of a large number of electric wires is correct.
In a further preferred embodiment, the first reference voltage corresponding to each flat cable detection circuit in the flat cable detection system decreases sequentially, and the second reference voltage corresponding to each flat cable detection circuit decreases sequentially.
For example, when the flat cable detection system includes three units shown in fig. 1 or fig. 2, the first reference voltage corresponding to the first unit may be set to 12V, the first reference voltage corresponding to the second unit may be set to 7V, and the first reference voltage corresponding to the third unit may be set to 3V; the second reference voltage corresponding to the first cell is set to 9V, the second reference voltage corresponding to the second cell is set to 5V, and the second reference voltage corresponding to the third cell is set to 1V.
Example 3
The present embodiment includes a flat cable detection method, as shown in fig. 3, which uses the flat cable detection circuit according to the embodiment to perform the following steps, so as to detect a flat cable composed of a first electric wire and a second electric wire:
s1, connecting one end of a first wire to the input end of a first voltage comparison module, and connecting one end of a second wire to the input end of a second voltage comparison module;
s2, applying a first test voltage with the same magnitude as the first reference voltage to the other end of the first wire, and applying a second test voltage with the same magnitude as the second reference voltage to the other end of the second wire;
and S3, judging that the wire sequences of the first electric wire and the second electric wire are correct when the first indicator light and the second indicator light are both luminous, and otherwise, judging that the wire sequences of the first electric wire and the second electric wire are incorrect.
The object of the flat cable detection method may be a flat cable as shown in fig. 2. The flat cable is mounted at both ends thereof with a first terminal T1 and a second terminal T2, respectively, so that the flat cable can be easily mounted to the corresponding first and second sockets J1 and J2, thereby achieving electrical connection.
When step S1 is performed, referring to fig. 2, the second terminal T2 of the flat cable is mounted to the second socket J2, and the second socket J2 is electrically connected to the flat cable detection circuit, such that one end of the first electric wire is connected to the input terminal of the first voltage comparison module and one end of the second electric wire is connected to the input terminal of the second voltage comparison module;
when step S2 is performed, referring to fig. 2, the first terminal T1 of the flat cable is mounted to the first socket J1, and the first socket J1 is electrically connected to a regulated power supply such that the other end of the first wire is applied with a first test voltage having the same magnitude as the first reference voltage, and the other end of the second wire is applied with a second test voltage having the same magnitude as the second reference voltage.
By observing the first indicator light and the second indicator light or by automatic control means such as level detection or light emission detection, a judgment result about whether the line sequence is correct can be obtained. The specific rule is as follows: when the first indicator light and the second indicator light are both luminous, judging that the line sequence of the first electric wire and the second electric wire is correct; when the first indicator light and the second indicator light do not emit light completely, the wire sequence of the first electric wire and the second electric wire is judged to be incorrect. The principle of this judgment rule is explained in embodiment 1, and therefore, it will not be described here.
The flat cable detection method in this embodiment has the beneficial effects obtained by the flat cable detection circuit in embodiment 1.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the descriptions of upper, lower, left, right, etc. used in the present disclosure are only relative to the mutual positional relationship of the constituent parts of the present disclosure in the drawings. As used in this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this embodiment, the term "and/or" includes any combination of one or more of the associated listed items.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language ("e.g.," such as, "etc.), provided with the present embodiments is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The method may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable automobile configured with the computer program, where the automobile so configured causes the computer to operate in a specific and predefined manner, according to the method and figures described in the specific embodiments. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, operations of processes described in this embodiment can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described in this embodiment (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory vehicle or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or written to a vehicle, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the computer may be used to configure and operate the computer to perform the processes described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described in this embodiment encompasses these and other different types of non-transitory computer-readable vehicles when such media includes instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. When programmed according to the methods and techniques of the present invention, the present invention also includes the computer itself.
A computer program can be applied to input data to perform the functions described in the present embodiment to convert the input data to generate output data that is stored to a non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on the display.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, as long as it achieves the technical effects of the present invention by the same means, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention. The technical solution and/or the embodiments of the invention may be subject to various modifications and variations within the scope of the invention.
Claims (7)
1. A flat cable detection circuit comprises a first electric wire and a second electric wire, and is characterized by comprising a first voltage comparison module, a first voltage reduction module, a first indicator light, a second voltage comparison module, a second voltage reduction module, a second indicator light, a third voltage comparison module, a third voltage reduction module and an electronic switch;
the first voltage comparison module is connected to a first reference voltage through a first voltage reduction module, the output end of the first voltage comparison module is connected with the first indicator lamp, and the input end of the first voltage comparison module is used for being connected with a first wire;
the second voltage comparison module is connected to a second reference voltage lower than the first reference voltage through a second voltage reduction module, the output end of the second voltage comparison module is connected with the second indicator light, and the input end of the second voltage comparison module is used for being connected with a second wire;
the third voltage comparison module is connected to a first reference voltage through a third voltage reduction module, an output end of the third voltage comparison module is connected with a control end of the electronic switch, an input end of the electronic switch is connected to the first reference voltage, an output end of the electronic switch is connected to a second reference voltage, and the electronic switch is used for loading the first reference voltage to the second voltage comparison module when the electronic switch is switched on.
2. The flat cable detection circuit according to claim 1, wherein the first voltage comparison module comprises a first operational amplifier, a third resistor, a thirtieth resistor, a twenty-second resistor and a twenty-sixth resistor, and the first voltage reduction module comprises a seventh resistor, an eighth resistor and a sixth capacitor;
one end of the third resistor is connected with the non-inverting input end of the first operational amplifier, the other end of the third resistor is grounded through the thirtieth resistor, and the other end of the third resistor is used for being connected with a first wire;
the inverting input end of the first operational amplifier is connected to the first reference voltage through the seventh resistor, and the inverting input end of the first operational amplifier is grounded through a parallel circuit formed by the eighth resistor and the sixth capacitor;
the output end of the first operational amplifier is grounded through the twenty-sixth resistor, and the output end of the first operational amplifier is connected with the first indicator lamp through the twenty-twelfth resistor.
3. The flat cable detection circuit according to claim 1, wherein the second voltage comparison module comprises a second operational amplifier, a fourth resistor, a thirty-first resistor, a twenty-third resistor and a twenty-seventh resistor, and the second voltage reduction module comprises a ninth resistor, a tenth resistor and a seventh capacitor;
one end of the fourth resistor is connected with the non-inverting input end of the second operational amplifier, the other end of the fourth resistor is grounded through the thirty-first resistor, and the other end of the fourth resistor is used for being connected with a second wire;
the inverting input end of the second operational amplifier is connected to the second reference voltage through the ninth resistor, and the inverting input end of the second operational amplifier is grounded through a parallel circuit formed by the tenth resistor and the seventh capacitor;
the output end of the second operational amplifier is grounded through the twenty-seventh resistor, and the output end of the second operational amplifier is connected with the second indicator light through the twenty-third resistor.
4. The flat cable detection circuit according to claim 3, wherein the third voltage comparison module comprises a third operational amplifier, a sixteenth resistor and a seventeenth resistor; the third voltage reduction module comprises a fifteenth resistor; the electronic switch comprises a field effect transistor;
the inverting input end of the third operational amplifier is connected to the first reference voltage through the fifteenth resistor, the non-inverting input end of the third operational amplifier is used for being connected with a second wire, the output end of the third operational amplifier is connected with the grid electrode of the field-effect tube through the sixteenth resistor, and the output end of the third operational amplifier is grounded through the seventeenth resistor;
the drain electrode of the field effect transistor is connected to the first reference voltage, and the source electrode of the field effect transistor is connected with the inverted input end of the second operational amplifier.
5. The flat cable detection circuit according to any one of claims 1 to 4, further comprising a flat cable socket; the flat cable socket is provided with a first port and a second port, the first port is connected with the input end of the first voltage comparison module, and the second port is connected with the input end of the second voltage comparison module; the first port is used for connecting a first electric wire, and the second port is used for connecting a second electric wire.
6. A flat cable detection system comprising a plurality of flat cable detection circuits according to any one of claims 1 to 5.
7. The flat cable detection system according to claim 6, wherein the first reference voltage corresponding to each flat cable detection circuit decreases sequentially, and the second reference voltage corresponding to each flat cable detection circuit decreases sequentially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110221158A (en) * | 2019-06-28 | 2019-09-10 | 韶关市嘉诺点火***有限公司 | A kind of winding displacement detection circuit, system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221158A (en) * | 2019-06-28 | 2019-09-10 | 韶关市嘉诺点火***有限公司 | A kind of winding displacement detection circuit, system and method |
| CN110221158B (en) * | 2019-06-28 | 2024-04-23 | 韶关市嘉诺点火***有限公司 | Flat cable detection circuit, system and method |
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