CN113746060B - Protection device for hot plug of laser device - Google Patents
Protection device for hot plug of laser device Download PDFInfo
- Publication number
- CN113746060B CN113746060B CN202111291173.XA CN202111291173A CN113746060B CN 113746060 B CN113746060 B CN 113746060B CN 202111291173 A CN202111291173 A CN 202111291173A CN 113746060 B CN113746060 B CN 113746060B
- Authority
- CN
- China
- Prior art keywords
- module
- signal
- parameter
- electrically connected
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
Abstract
The invention provides a protection device for hot plug of a laser in an electrified way, which comprises a load module, a signal module and a control module, wherein the signal module is electrically connected with the load module and is used for inputting a preset signal to the load module, the control module is electrically connected with the load module to obtain working parameters of the load module, and if the working parameters are judged to be smaller than threshold parameters, the control module controls the current flowing into the load module to be 0 so that the load module is in a power-off state, the load module can be prevented from being still in a power-on state when in circuit break, the instant 'hot plug' action of converting the circuit break of the load module into a circuit break is avoided, and the risk of damaging the load module is reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to the technical field of display panel manufacturing, and particularly relates to a protection device for hot plugging of a laser.
Background
Laser becomes an ideal light source for optical communication due to the characteristics of good directivity, coherence, high brightness and the like, and the application of the laser is increasingly common with the development of the optical communication technology.
Wherein, the laser emits light by the drive of the constant current source; however, during the operation of the constant current source, due to the reliability of the connection of the laser and the inevitable mechanical jitter, the instant when the laser as a load is switched from an open circuit to a closed circuit, i.e. the "hot swap" action, causes a huge current to flow through the laser, resulting in the damage of the laser.
Therefore, the existing laser has the problem of damage caused by 'hot plugging' in the working process, and the improvement is urgently needed.
Disclosure of Invention
The embodiment of the invention provides a protection device for hot plugging of a laser, which aims to solve the technical problem that the conventional laser is damaged due to hot plugging in the working process.
The embodiment of the invention provides a protection device for hot plug of a laser, which comprises:
a load module;
the signal module is electrically connected to the load module and is used for inputting a preset signal to the load module;
and the control module is electrically connected to the load module and is used for acquiring the working parameters of the load module, and if the working parameters are judged to be smaller than the threshold parameters, the current flowing into the load module is controlled to be 0.
In one embodiment, the control module comprises:
and the judging module is electrically connected to the load module and is used for judging the size relationship between the working parameter and the threshold parameter.
In one embodiment, the control module further comprises:
the switch setting module is electrically connected between the judging module and the signal module and is used for controlling the output current of the signal module to be 0 when the working parameter is smaller than the threshold parameter;
or the switch setting module is used for controlling the open circuit between the signal module and the load module when the working parameter is smaller than the threshold parameter.
In one embodiment, the determining module includes a comparator, and the comparator includes:
a first input end electrically connected to the load module to be loaded as the working parameter;
a second input loaded with the threshold parameter;
and the output end is electrically connected with the switch setting module so as to transmit the comparison parameter to the switch setting module.
In an embodiment, the determining module further includes:
the first auxiliary module comprises a third input end and a third output end, the third output end is electrically connected to the second input end, and the third input end is loaded with a first auxiliary signal;
the first auxiliary module is configured to electrically disconnect the third input terminal and the third output terminal when the operating parameter is greater than or equal to the threshold parameter, and electrically connect the third input terminal and the third output terminal when the load module is in an on state and a current in the load module is 0, so as to input the first auxiliary signal to the second input terminal, where the first auxiliary signal enables the signal module to input the preset signal to the load module.
In an embodiment, the determining module further includes:
the second auxiliary module comprises a fourth input end and a fourth output end, the fourth output end is electrically connected to the second input end, and the fourth input end is loaded as a second auxiliary signal;
the second auxiliary module is configured to electrically disconnect the fourth input terminal and the fourth output terminal when the operating parameter is greater than or equal to the threshold parameter, and electrically connect the fourth input terminal and the fourth output terminal when the operating parameter is less than the threshold parameter and a current in the load module is not 0, so as to input the second auxiliary signal to the second input terminal, where the second auxiliary signal makes the current flowing into the load module be 0.
In an embodiment, the protection device for hot plug of a laser device further includes:
the central processing module is electrically connected with the signal module and is used for inputting a first parameter to the signal module;
the signal module comprises a signal setting module and a signal generating module, the signal setting module is electrically connected with the central processing module, the signal generating module is electrically connected with the signal setting module, the signal setting module is used for converting the first parameter into the preset signal, and the signal generating module is used for inputting the preset signal into the load module.
In one embodiment, the switch setting module includes:
the switch control module is electrically connected to the judgment module and used for acquiring and generating a switch parameter according to the magnitude relation between the working parameter and the threshold parameter;
the switch module is electrically connected with the switch control module, the signal module and the central processing module so as to control the access condition between the central processing module and the signal setting module according to the switch parameter, or electrically connected between the switch control module and the signal module so as to control the access condition between the signal setting module and the signal generating module according to the switch parameter, or electrically connected with the switch control module, the signal module and the load module so as to control the access condition between the signal generating module and the load module according to the switch parameter.
In an embodiment, the protection device for hot plug of a laser device further includes:
the acquisition module is electrically connected between the load module and the central processing module and used for acquiring the working parameters, converting the working parameters into second parameters and sending the second parameters to the central processing module.
In an embodiment, the protection device for hot plug of a laser device further includes:
and the feedback module is electrically connected with the central processing module and the signal module and is used for acquiring and controlling the signal module to input a feedback signal to the load module according to the second parameter.
The invention provides a protection device for hot plug of a laser device, which comprises: a load module; the signal module is electrically connected to the load module and is used for inputting a preset signal to the load module; and the control module is electrically connected with the load module and is used for acquiring the working parameters of the load module, and if the working parameters are judged to be less than the threshold parameters, the current flowing into the load module is controlled to be 0. The control module in the invention can enable the load module to be in a power-off state when the load module is in the open circuit state, so as to avoid the load module from still being in a power-on state when the load module is in the open circuit state, thereby avoiding the instant 'hot plug' action of converting the open circuit of the load module into a closed circuit, and reducing the risk of damage of the load module.
Drawings
The invention is further illustrated by the following figures. It should be noted that the drawings in the following description are only for illustrating some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a block diagram of a first protection device for hot plug of a laser in an electrified state according to an embodiment of the present invention.
Fig. 2 is a block diagram of a second protection device for hot plug of a laser in an electrified state according to an embodiment of the present invention.
Fig. 3 is a block diagram of a third protection device for hot plugging of a laser in an electrified state according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of a first determining module according to an embodiment of the present invention.
Fig. 5 is a circuit diagram of a second determining module according to an embodiment of the present invention.
Fig. 6 is a block diagram of a fourth protection device for hot plug of a laser in an electrified state according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first", "second", "third" and "fourth", etc. in the present invention are used for distinguishing different objects, not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to the listed steps or modules but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The embodiment of the invention provides a protection device for hot plug of a laser, which includes but is not limited to the following embodiments and combinations of the following embodiments.
In an embodiment, as shown in fig. 1, the protection device 100 for hot plugging of a laser device includes: a load module 10; the signal module 20 is electrically connected to the load module 10, and the signal module 20 is configured to input a preset signal to the load module 10; the control module 30 is electrically connected to the load module 10, the control module 30 is configured to obtain a working parameter of the load module 10, and if the working parameter is determined to be smaller than a threshold parameter, control the current flowing into the load module 10 to be 0.
Specifically, the preset information corresponding to the preset signal may be input to the signal module 20 by a user, and then the preset signal is generated by the conversion of the signal module 20, and is input to the load module 10, where it should be noted that the preset signal may be understood as a current signal or a voltage signal, that is, the preset signal may be understood as a working state of the load module 10 after receiving the preset signal input by the load module 10. Specifically, the operating parameter may be a current value of a terminal of the load module 10 or a voltage value of a terminal of the load module 10 relative to the ground, or a value obtained by transforming a current value of a terminal of the load module 10 or a voltage value of a terminal of the load module 10 relative to the ground, that is, it may be understood that the operating parameter may represent an operating condition of the load module 10.
It is understood that, in the embodiment, by configuring the control module 30 to control the current flowing into the load module 10 to be 0 when the operating parameter is smaller than the threshold parameter, the threshold parameter may be stored in the control module 30 or may be input into the control module 30 by the user. Specifically, the threshold parameter may be understood as representing a critical normal operating condition of the load module 10, and may be understood as representing an abnormal operating condition of the load module 10 when the operating parameter is greater than or less than the threshold parameter, at this time, in this embodiment, the current flowing into the load module 10 may be controlled to be 0, that is, the load module 10 is powered off, so as to prevent the load module 10 from operating in an abnormal operating condition, and further prevent the load module 10 from being damaged.
Further, in this embodiment, only by taking "if it is determined that the operating parameter is smaller than the threshold parameter, the current flowing into the load module 10 is controlled to be 0", that is, in this embodiment, the operating parameter smaller than the threshold parameter is taken as an example to represent that the load module 10 is in an abnormal operating condition, specifically, the operating parameter may be understood as a parameter positively correlated to the real-time operating voltage or operating current of the load module 10, that is, "the operating parameter smaller than the threshold parameter" may represent that the real-time operating voltage or operating current of the load module 10 is too small to consider that the load module 10 is in an open circuit state, at this time, the load module 10 is powered off in this embodiment, so as to avoid that the load module 10 is still in an energized state during an open circuit, thereby avoiding an instant "hot plug" action that the load module 10 is converted from an open circuit into a closed circuit, the risk of damage to the load module is reduced.
In one embodiment, as shown in fig. 2 and 3, the control module 30 includes: the determining module 301 is electrically connected to the load module 10, and the determining module 301 is configured to determine a magnitude relationship between the working parameter and the threshold parameter. In combination with the above discussion, the magnitude relationship between the operating parameter and the threshold parameter can be determined by the determining module 301 in the control module 30, and when the determination result is that the operating parameter is smaller than the threshold parameter, the control module 30 can control the current flowing into the load module 10 to be 0, so as to perform power-off processing on the load module 10, so as to avoid that the load module 10 is still in a power-on state when being disconnected, thereby avoiding the instant "hot plug" action of the load module 10 from being converted from being disconnected into being disconnected, and reducing the risk of damage to the load module. Further, the determining module 301 may be electrically connected to the load module 10 to obtain the working parameter, and the threshold parameter may be stored in the determining module 301 of the control module 30, or may be input into the determining module 301 of the control module 30 by a user. It can be understood that, in the present invention, the working state of the protection device 100 for hot plug of a laser device is determined by comparing the threshold parameter with the working parameter, further, the threshold parameter in the present invention may be set according to different requirements or characteristics of the load module 10, and the load module 10 may be further protected by reasonably setting the threshold parameter.
In one embodiment, as shown in fig. 2 and 3, the control module 30 further includes: a switch setting module 302, as shown in fig. 2, wherein the switch setting module 302 is electrically connected between the determining module 301 and the signal module 20, and the switch setting module 302 is configured to control the output current of the signal module 20 to be 0 when the working parameter is smaller than the threshold parameter; alternatively, as shown in fig. 3, the switch setting module 302 is electrically connected to the judging module 301, the load module 10 and the signal module 20, and the switch setting module 302 is configured to control the disconnection between the signal module 20 and the load module 10 when the operating parameter is smaller than the threshold parameter.
As shown in fig. 2 and fig. 3, in combination with the above discussion, the determining module 301 may determine a magnitude relationship between the working parameter and the threshold parameter, and in this embodiment, the switch setting module 302 is electrically connected to the determining module 301 to obtain information whether the working parameter is smaller than the threshold parameter. Further, specifically, as shown in fig. 2, the switch setting module 302 may be electrically connected to the signal module 20, and when the obtained operating parameter is smaller than the threshold parameter, the switch setting module 302 may directly act on the signal module 20 to control the output current of the signal module 20 to be 0, specifically, it can be understood that, at this time, the switch setting module 302 controls the signal module 20 to perform an operation of not inputting a preset signal to the load module 10, that is, the current flowing into the load module 10 is 0, that is, the load module 10 is in a power-off state; alternatively, as shown in fig. 3, the switch setting module 302 may also be electrically connected between the load module 10 and the signal module 20, and when the operating parameter is less than the threshold parameter, even if the signal module 20 still outputs the preset signal, the switch setting module 302 may control the disconnection between the signal module 20 and the load module 10, that is, the current flowing into the load module 10 is still 0, that is, the load module 10 is in the power-off state, for example, the switch setting module 302 may be understood as a switch device to control the on-off state between the signal module 20 and the load module 10.
In an embodiment, as shown in fig. 1 to 4, the determining module 301 includes a comparator 3011, and the comparator 3011 includes: a first input end 01 electrically connected to the load module 10 to be loaded as the working parameter; a second input 02, loaded with said threshold parameter; an output end 03, configured to generate a comparison parameter according to a magnitude relationship between the working parameter and the threshold parameter, where the output end 03 is electrically connected to the switch setting module 302, so as to transmit the comparison parameter to the switch setting module 302.
In this embodiment, in combination with fig. 4, the working parameter of the first input end 01 and the threshold parameter of the second input end 02 may be compared, and the output end 03 is used to generate a comparison parameter according to the magnitude relationship between the working parameter and the threshold parameter, that is, the comparison parameter output by the output end 03 may represent the magnitude relationship between the working parameter and the threshold parameter, so that the switch setting module 302 obtains the magnitude relationship between the working parameter and the threshold parameter, and in combination with the above discussion, the switch setting module 302 may control whether the load module 10 is in the power-off state.
Further, as shown in fig. 4, the comparator 3011 may include a central device 04, a first resistor 05 electrically connected between the first input terminal 01 and the central device 04, a second resistor 06 electrically connected between the second input terminal 02 and the central device 04, a third resistor 07 electrically connected between the first high-voltage terminal 010 and the central device 04, a second high-voltage terminal 08 electrically connected to the central device 04, and a low-voltage terminal 09. The first resistor 05 and the second resistor 06 may be used as current-limiting resistors, the first resistor 05 may limit the magnitude of current flowing through the branch where the first input terminal 01 is located, and the second resistor 06 may limit the magnitude of current flowing through the branch where the second input terminal 02 is located; the third resistor 07 may be used as a pull-up resistor, the first high-voltage terminal 010 may be loaded with a first high-voltage VDD, the second high-voltage terminal 08 may be loaded with a second high-voltage VCC, the low-voltage terminal 09 may be loaded with a low-voltage VEE, the second high-voltage VCC and the low-voltage VEE may provide a working voltage difference for the central device 04 to operate, because the output terminal 03 is in a floating state, the comparison parameter output by the output terminal 03 may be equal to the first high-voltage VDD or the low-voltage VEE, for example, when the working parameter is greater than a threshold parameter, the comparison parameter may be equal to the first high-voltage VDD, otherwise, the comparison parameter may be equal to the low-voltage VEE. Specifically, in the present invention, for example, when the first high voltage VDD is greater than the low voltage VEE, that is, when the working parameter is less than the threshold parameter, the corresponding comparison parameter may be 0, so that the driving switch setting module 302 controls the current flowing into the load module 10 to be 0.
Of course, in other embodiments, in combination with the above discussion that "the threshold parameter may be stored in the control module 30", it is understood that the comparator 3011 in the present invention may also be configured to include a third input end and an output end, the input end may be electrically connected to the load module 10 to be loaded as the working parameter, the comparator 3011 may store the threshold parameter, that is, the output end may generate the comparison parameter according to the magnitude relationship between the obtained working parameter and the threshold parameter stored in advance, where the comparison parameter may be understood as the above comparison parameter.
In an embodiment, as shown in fig. 1 to 4, the determining module 301 further includes: a first auxiliary module 11, including a third input end 111 and a third output end 112, wherein the third output end 112 is electrically connected to the second input end 02, and the third input end 111 is loaded with a first auxiliary signal; the first auxiliary module 11 is configured to electrically disconnect the third input end 111 and the third output end 112 when the operating parameter is greater than or equal to the threshold parameter, and electrically connect the third input end 111 and the third output end 112 when the load module 10 is in an on state and a current in the load module 10 is 0, so as to input the first auxiliary signal to the second input end 02, where the first auxiliary signal enables the signal module 20 to input the preset signal to the load module 10.
As shown in fig. 4, the first auxiliary module 11 may further include a first control terminal 110, the first control terminal 110 is loaded with an enable signal, and as can be seen from the above discussion, the enable signal is determined by the states of "the operating parameter is greater than or equal to the threshold parameter", "the load module 10 is in a pass state, and the current in the load module 10 is 0"; it can be understood that when the operating parameter is greater than or equal to the threshold parameter, that is, when the load module 10 is in a normal operating state, the enable signal controls the open circuit between the third input 111 and the third output 112, so as to prevent the auxiliary signal from flowing into the branch where the second input 02 is located; when the load module 10 is in the on state and the current in the load module 10 is 0, that is, after the load module 10 is determined to have been restored to the on state after the previous power failure, the enable signal controls the path between the third input end 111 and the third output end 112, so that the first auxiliary signal flows into the second input end 02, and the signal module 20 inputs the preset signal to the load module 10; it is to be noted that due to the presence of the second resistor 06, the "first auxiliary signal flows to the second input 02" can be understood as the branch where the first auxiliary signal flows to the second input 02, i.e. the first auxiliary signal flows between the second resistor 06 and the central device 04 in fig. 4.
Specifically, it is also discussed herein that, on the basis of "when the operating parameter is greater than the threshold parameter, the comparison parameter may be equal to the first high voltage VDD, otherwise, the comparison parameter may be equal to the low voltage VEE", that is, when the load module 10 is determined to have recovered to the path after the previous power failure, the third input terminal 111 and the third output terminal 112 are electrically connected, the second input terminal 02 is pulled down to the low voltage VEE, that is, the operating parameter loaded on the first input terminal 01 is greater than the low voltage VEE loaded on the second input terminal 02 at this time, and the data output by the output terminal 03 may be 1, so that the driving switch setting module 302 controls the signal module 20 to input the preset signal to the load module 10.
It can be understood that, in this embodiment, when the load module 10 is in the on state and the current in the load module 10 is 0, that is, after the load module 10 is determined to have recovered to the on state after the previous power failure, the first auxiliary module 11 may input the preset signal to the load module 10 in time through the enable signal control signal module 20, so as to ensure that the load module 10 may normally operate, and when the load module 10 normally operates, the first auxiliary module 11 may not affect the comparison between the operating parameter and the threshold parameter, which may improve the operating efficiency of the hot-swap protection device for a laser device.
In an embodiment, as shown in fig. 1 to fig. 5, the determining module 301 further includes: a second auxiliary module 12, including a fourth input terminal 121 and a fourth output terminal 122, wherein the fourth output terminal 122 is electrically connected to the second input terminal 02, and the fourth input terminal 121 is loaded with a second auxiliary signal; the second auxiliary module 12 is configured to electrically disconnect the fourth input end 121 and the fourth output end 122 when the operating parameter is greater than or equal to the threshold parameter, and electrically connect the fourth input end 121 and the fourth output end 122 when the operating parameter is less than the threshold parameter and the current in the load module 10 is not 0, so as to input the second auxiliary signal to the second input end 02, where the second auxiliary signal makes the current flowing into the load module 10 be 0.
As shown in fig. 5, the second auxiliary module 12 may further include a second control end 120, and the second control end 120 may be electrically connected to the output end 03, as can be seen from the above discussion, the signal on the second control end 120 is determined by the magnitude relationship between the "operating parameter" and the "threshold parameter"; it can be understood that when the operating parameter is greater than or equal to the threshold parameter, that is, when the load module 10 is in a normal operating state, the signal on the second control terminal 120 controls the fourth input terminal 121 and the fourth output terminal 122 to open a circuit therebetween, so as to prevent the second auxiliary signal from flowing into the branch where the second input terminal 02 is located; when the operating parameter is smaller than the threshold parameter and the current in the load module 10 is not 0, that is, the load module 10 is in an abnormal operating state, as discussed above, the signal at the second control end 120 is related to the current comparison parameter, and when the comparison parameter indicates that the operating parameter is smaller than the threshold parameter, the signal at the second control end 120 controls the path between the fourth input end 121 and the fourth output end 122, so that the second auxiliary signal flows into the second input end 02, and the current flowing into the load module 10 is 0; it is to be noted that due to the presence of the second resistor 06, the "second auxiliary signal flows to the second input 02" can be understood as the branch where the second auxiliary signal flows to the second input 02, i.e. the second auxiliary signal flows between the second resistor 06 and the central device 04 in fig. 5.
Specifically, it is also discussed herein that, based on "when the operating parameter is greater than the threshold parameter, the comparison parameter may be equal to the first high voltage VDD, otherwise, the comparison parameter may be equal to the low voltage VEE", a voltage value of the second auxiliary signal may be a high voltage constantly, that is, when the load module 10 is in the abnormal operating state of the open circuit, the third input terminal 111 and the third output terminal 112 are electrically connected, the second input terminal 02 is pulled up to a high voltage, that is, the operating parameter loaded on the first input terminal 01 is smaller than the high voltage loaded on the second input terminal 02 at this time, and the data output by the output terminal 03 may be 0, so that the switch setting module 302 is controlled to control the current flowing into the load module 10 to be 0.
It can be understood that, in this embodiment, when the operating parameter is less than the threshold parameter and the current in the load module 10 is not 0, that is, the load module 10 is in an abnormal operating state of circuit break, further the current "comparison parameter indicates that the operating parameter is less than the threshold parameter" so that the voltage at the second input terminal 02 is a high voltage, further the next comparison parameter also indicates that the operating parameter is less than the threshold parameter, the auxiliary driving switch setting module 302 controls the current flowing into the load module 10 to be 0, which can avoid that the current flowing into the load module 10 cannot be controlled to be 0 due to too low threshold parameter or abnormal loading of the threshold parameter to the second input terminal 02, thereby further improving the reliability of the operation of the protection device for hot plug of a laser device with live plug.
In an embodiment, as shown in fig. 6, the protection device 100 for hot plugging of a laser device further includes: a central processing module 40 electrically connected to the signal module 20, wherein the central processing module 40 is configured to input a first parameter to the signal module 20; the signal module 20 includes a signal setting module 201 electrically connected to the central processing module 40, and a signal generating module 202 electrically connected to the signal setting module 201, where the signal setting module 201 is configured to convert the first parameter into the preset signal, and the signal generating module 202 is configured to input the preset signal to the load module 10.
The Central Processing module 40 may be, but is not limited to, a Central Processing Unit (CPU). Specifically, in combination with the above discussion, the "preset information corresponding to the preset signal may be input to the signal module 20 by the user, and then the preset signal is generated by the conversion of the signal module 20", that is, the central processing module 40 may receive the preset information input by the user as the first parameter, or convert the preset information into the first parameter, where the first parameter may be a digital signal. Further, the signal setting module 201 in this embodiment may be a digital-to-analog converter, that is, the signal setting module 201 may convert the first parameter appearing as a digital signal into a preset signal appearing as an analog signal; further, the signal generating module 202 in this embodiment may be a voltage source or a current source to generate a corresponding current signal or a corresponding voltage signal according to a preset signal that is an analog signal, and the corresponding current signal or voltage signal is input to the load module 10 as the preset signal, and the signal generating module 202 may be set according to the requirement of the load module 10, for example, when the load module 10 is a laser, the signal generating module 202 may be a constant current source to provide a constant current signal to the load module 10 as the preset signal.
In one embodiment, as shown in fig. 6, the switch setting module 302 may include: the switch control module 303 is electrically connected to the judgment module 301, and configured to obtain and generate a switch parameter according to a size relationship between the working parameter and the threshold parameter; a switch module 304, electrically connected to the switch control module 303, the signal module 20, and the central processing module 40 (not shown in the figure), for controlling a path condition between the central processing module 40 and the signal setting module 201 according to the switch parameter, or electrically connected to the switch control module 303 and the signal module 20, for controlling a path condition between the signal setting module 201 and the signal generating module 202 according to the switch parameter, or electrically connected to the switch control module 303, the signal module 20, and the load module 10 (not shown in the figure), for controlling a path condition between the signal generating module 202 and the load module 10 according to the switch parameter.
The switching parameter may represent a magnitude relationship between the operating parameter and the threshold parameter, for example, the switching parameter is in a first range or a first value may represent that the operating parameter is smaller than the threshold parameter, otherwise, the operating parameter may represent that the operating parameter is greater than or equal to the threshold parameter, and the switching module 304 determines whether to perform the operation of controlling the current flowing into the load module 10 to be 0 according to the switching parameter.
Specifically, the description is given by taking the switch parameter characterization result as an example that the working parameter is smaller than the threshold parameter: when the switch module 304 is electrically connected to the switch control module 303, the signal module 20 and the central processing module 40, the central processing module 40 may be controlled not to input the preset signal to the signal setting module 201, so that the signal setting module 201 does not input the preset signal to the signal generating module 202, and the signal generating module 202 does not input the preset signal to the load module 10; when the switch module 304 is electrically connected between the switch control module 303 and the signal module 20, the signal setting module 201 may be controlled not to input the preset signal to the signal generating module 202, or the signal setting module 201 and the signal generating module 202 are disconnected, so that the signal generating module 202 does not input the preset signal to the load module 10; when the switch module 304 is electrically connected to the switch control module 303, the signal module 20 and the load module 10, the signal generation module 202 may be directly controlled not to input the predetermined signal to the load module 10.
Specifically, in combination with the above discussion, the switch module 304 in the present invention may be a switch device or a circuit capable of implementing a switching function, the switch control module 303 may be a wire connected between the central processing module 40 and the switch module 304 or a circuit capable of converting an enable signal into a switching parameter, and the determining module 301 may refer to the related descriptions in fig. 4 to fig. 5, that is, the determining module 301 and the switch control module 303 in the present invention may be implemented by hardware, so as to improve the reliability, stability and rapidity of the operation of the protection device 100 for hot-plugging a laser device with electricity.
In an embodiment, as shown in fig. 6, the protection device 100 for hot plugging of a laser device further includes: and the acquisition module 50 is electrically connected between the load module 10 and the central processing module 40, and the acquisition module 50 is used for acquiring the working parameters, converting the working parameters into second parameters and sending the second parameters to the central processing module 40.
Specifically, in combination with the above discussion, the working parameter may be an analog signal, and the acquisition module 50 in this embodiment may be an analog-to-digital converter, that is, the acquisition module 50 may convert the working parameter appearing as an analog signal into a second parameter appearing as a digital signal; further, the user may refer to the second parameter from the central processing module 40 in combination with the threshold value to determine the operation state of the load module 10, for example, when the load module 10 is in an abnormal operation state, the user may intervene on the load module 10 to make the load module 10 in the on-state.
In an embodiment, the protection device 100 for hot plugging of a laser further includes: a feedback module (not shown in the drawings), electrically connected to the central processing module 40 and the signal module 20, and configured to obtain and control the signal module 20 to input a feedback signal to the load module 10 according to the second parameter.
It should be noted that during the operation of the load module 10, the operating parameter of the load module 10 may be outside a preset range for internal or external reasons, and the preset range may be understood as a preferred operating state of the load module 10, and at this time, a feedback signal may be generated by acting on the signal module 20 through the feedback module to adjust the operating state of the load module 10 to the preferred operating state, wherein the type of the feedback signal may be consistent with the type of the preset signal.
As shown in fig. 6, the central processing module 40 may also be electrically connected to the control module 30, and the central processing module 40 is configured to input the threshold parameter to the control module 30. Specifically, the central processing module 40 may be electrically connected to the determining module 301 to input the threshold parameter to the determining module 301, and in combination with the above discussion, the threshold parameter may be input into the control module 30 by a user, that is, the user may input the threshold parameter to the central processing module 40, and the determining module 301 obtains the threshold parameter from the central processing module 40. Specifically, the threshold parameter may be an analog signal or a digital signal, and the type of the threshold parameter may be determined according to whether a digital-to-analog converter is disposed between the central processing module 40 and the determining module 301.
As shown in fig. 6, the central processing module 40 may further be electrically connected to the control module 30, and the control module 30 generates a protection parameter according to a magnitude relationship between the working parameter and the threshold parameter, and inputs the protection parameter to the central processing module 40. Specifically, the central processing module 40 may be electrically connected to the determining module 301 to obtain the protection parameter, and in combination with the above discussion, the user may refer to the protection parameter in the central processing module 40 to obtain the working state of the load module 10, for example, when the load module 10 is in an abnormal working state, the user may intervene on the load module 10 to make the load module 10 in the on-state. It can be understood that, in comparison with the above discussion, the central processing module 40 may also be electrically connected to the acquisition module 50 to refer to the second parameter and combine with the threshold to determine the working state of the load module 10, but the central processing module 40 in this embodiment may directly obtain the working state of the load module 10 according to the protection parameter, so as to improve the data transmission efficiency. In summary, in the present invention, a user can refer to at least one of the protection parameter and the second parameter in the central processing module 40 to know the operating status of the load module 10 so as to intervene in the load module 10 in real time, thereby assisting the benign operation of the protection device 100 for hot-plugging and hot-plugging a laser.
As shown in fig. 6, the central processing module 40 may further obtain a repair state parameter, generate an enable signal according to the repair state parameter, and input the enable signal to the control module 30 to control the signal module 20 to input the preset signal to the load module 10. Specifically, in combination with the above description about the first auxiliary module 11, after the user may intervene in the load module 10 in the central processing module 40 and determine that the load module 10 is in the on-state, a repair state parameter may be input to the central processing module 40, and a specific value of the enable signal may be determined by the repair state parameter, for example, after the repair state parameter indicates that the load module 10 is in the on-state, the specific value of the enable signal input to the control module 30 by the central processing module 40 is that the load module 10 is in the on-state.
Further, the central processing module 40 may input an enable signal to the determining module 301, and in conjunction with the above discussion, the enable signal is determined by the states of "the operating parameter is greater than or equal to the threshold parameter", "the load module 10 is in the on state and the current in the load module 10 is 0", and even if the specific value of the enable signal may completely represent the information that "the load module 10 is in the on state and the current in the load module 10 is 0", at this time, the specific process of inputting the preset signal to the load module 10 by the enable signal control signal module 20 may be determined according to the above description about the first auxiliary module 11. It should be noted that, in addition, when the protection device 100 for hot plug of a laser device enters a power-on state after being powered off or enters the power-on state for the first time, the central processing module 40 may input an enable signal to the control module 30 to control the signal module 20 to input the preset signal to the load module 10.
In summary, referring to fig. 6, the working process of the protection device 100 for hot plugging of a laser in the present invention may include, but is not limited to, the following steps: after receiving a power-on instruction, a first parameter, and a threshold parameter of an upper computer or a user, the central processing module 40 sends the first parameter to the signal setting module 201, sends the threshold parameter to the judgment module 301, and sends an enable signal to the switch control module 303; the judgment module 301 receives and stores the threshold parameter; after receiving the enable signal, the switch control module 303 sends a switch parameter to the switch module 304 to control the switch module 304 to be a path; the signal setting module 201 receives the first parameter and inputs a preset signal converted from the first parameter to the signal generating module 202 after the switch module 304 is a path, and controls the signal generating module 202 to input the preset signal to the load module 10; the acquisition module 50 acquires the working parameters from the load module 10 and transmits the second parameters converted from the working parameters to the central processing module 40; when the judging module 301 judges that the working parameter acquired from the load module 10 is smaller than the threshold parameter, the switching control module 303 sends the switching parameter to the switching module 304 to control the switching module 304 to be an open circuit, so that the current flowing into the load module 10 is 0, and the judging module 301 sends the protection parameter to the central processing module 40 for the upper computer or the user to look up; the central processing module 40 sends the enable signal to the switch control module 303 again, at this time, it may be characterized that the user confirms that the load module 10 is in the on-state, the switch control module 303 sends the switch parameter to the switch module 304 to control the switch module 304 to be the on-state, and meanwhile, the central processing module 40 may or need not send the first parameter to the signal setting module 201 again, so that the signal setting module 201 generates the preset signal.
The invention provides a protection device for hot plug of a laser device, which comprises: a load module; the signal module is electrically connected to the load module and is used for inputting a preset signal to the load module; and the control module is electrically connected with the load module and is used for acquiring the working parameters of the load module, and if the working parameters are judged to be less than the threshold parameters, the current flowing into the load module is controlled to be 0. The control module in the invention can enable the load module to be in a power-off state when the load module is in the open circuit state, so as to avoid the load module from still being in a power-on state when the load module is in the open circuit state, thereby avoiding the instant 'hot plug' action of converting the open circuit of the load module into a closed circuit, and reducing the risk of damage of the load module.
The protection device for hot plug and unplug of the laser provided by the embodiment of the present invention is described in detail above, and the principle and the embodiment of the present invention are explained in detail herein by applying specific examples, and the description of the above embodiments is only used to help understanding the technical scheme and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a protection device of electrified hot plug of laser instrument which characterized in that includes:
a load module;
the signal module is electrically connected to the load module and is used for inputting a preset signal to the load module;
the control module is electrically connected with the load module and used for acquiring working parameters of the load module, and if the working parameters are judged to be smaller than threshold parameters, the current flowing into the load module is controlled to be 0;
the control module comprises a judging module electrically connected to the load module, the judging module is used for judging the magnitude relation between the working parameter and the threshold parameter, and the judging module comprises:
a comparator including a second input loaded as the threshold parameter;
the first auxiliary module comprises a third input end and a third output end, the third output end is electrically connected to the second input end, and the third input end is loaded with a first auxiliary signal;
the first auxiliary module is configured to electrically disconnect the third input terminal and the third output terminal when the operating parameter is greater than or equal to the threshold parameter, and electrically connect the third input terminal and the third output terminal when the load module is in an on state and a current in the load module is 0, so as to input the first auxiliary signal to the second input terminal, where the first auxiliary signal enables the signal module to input the preset signal to the load module.
2. The hot-plug protection device for laser device of claim 1, wherein the control module further comprises:
the switch setting module is electrically connected between the judging module and the signal module and is used for controlling the output current of the signal module to be 0 when the working parameter is smaller than the threshold parameter;
or the switch setting module is used for controlling the open circuit between the signal module and the load module when the working parameter is smaller than the threshold parameter.
3. The protection device for hot plug of laser device according to claim 2, wherein the determining module comprises a comparator, and the comparator further comprises:
a first input end electrically connected to the load module to be loaded as the working parameter;
and the output end is electrically connected with the switch setting module so as to transmit the comparison parameter to the switch setting module.
4. The apparatus according to claim 2, wherein the determining module further comprises:
the second auxiliary module comprises a fourth input end and a fourth output end, the fourth output end is electrically connected to the second input end, and the fourth input end is loaded as a second auxiliary signal;
the second auxiliary module is configured to electrically disconnect the fourth input terminal and the fourth output terminal when the operating parameter is greater than or equal to the threshold parameter, and electrically connect the fourth input terminal and the fourth output terminal when the operating parameter is less than the threshold parameter and a current in the load module is not 0, so as to input the second auxiliary signal to the second input terminal, where the second auxiliary signal makes the current flowing into the load module be 0.
5. The live hot plug protection device for laser according to claim 2, further comprising:
the central processing module is electrically connected with the signal module and is used for inputting a first parameter to the parameter generating module;
the signal module comprises a signal setting module and a signal generating module, the signal setting module is electrically connected with the central processing module, the signal generating module is electrically connected with the signal setting module, the signal setting module is used for converting the first parameter into the preset signal, and the signal generating module is used for inputting the preset signal into the load module.
6. The protection device for hot plug of laser device according to claim 5, wherein the switch setting module comprises:
the switch control module is electrically connected to the judgment module and used for acquiring and generating a switch parameter according to the magnitude relation between the working parameter and the threshold parameter;
the switch module is electrically connected with the switch control module, the signal module and the central processing module so as to control the access condition between the central processing module and the signal setting module according to the switch parameter, or electrically connected between the switch control module and the signal module so as to control the access condition between the signal setting module and the signal generating module according to the switch parameter, or electrically connected with the switch control module, the signal module and the load module so as to control the access condition between the signal generating module and the load module according to the switch parameter.
7. The live hot plug protection device for laser according to claim 5, further comprising:
the acquisition module is electrically connected between the load module and the central processing module and used for acquiring the working parameters, converting the working parameters into second parameters and sending the second parameters to the central processing module.
8. The hot-plug protection device for laser according to claim 7, further comprising:
and the feedback module is electrically connected with the central processing module and the signal module and is used for acquiring and controlling the signal module to input a feedback signal to the load module according to the second parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111291173.XA CN113746060B (en) | 2021-11-03 | 2021-11-03 | Protection device for hot plug of laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111291173.XA CN113746060B (en) | 2021-11-03 | 2021-11-03 | Protection device for hot plug of laser device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113746060A CN113746060A (en) | 2021-12-03 |
| CN113746060B true CN113746060B (en) | 2022-02-15 |
Family
ID=78727270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111291173.XA Active CN113746060B (en) | 2021-11-03 | 2021-11-03 | Protection device for hot plug of laser device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113746060B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10146001B4 (en) * | 2001-09-18 | 2008-04-03 | Nokia Siemens Networks Gmbh & Co.Kg | Circuit arrangement and method for safety shutdown of an optical amplifier |
| EP1777787A3 (en) * | 2005-10-18 | 2008-04-30 | The Furukawa Electric Co., Ltd. | Fiber laser modulation method and modulator |
| CN105914568A (en) * | 2016-06-16 | 2016-08-31 | 光惠（上海）激光科技有限公司 | Novel intelligent self-checking optical fiber laser and powering-on self-checking method thereof |
| CN107316598B (en) * | 2017-08-14 | 2020-11-27 | 南京中电熊猫平板显示科技有限公司 | Hot-plug short circuit control device and method |
| JP6970000B2 (en) * | 2017-12-14 | 2021-11-24 | 株式会社キーエンス | Laser processing equipment and laser processing method |
| CN111431027B (en) * | 2020-03-30 | 2021-07-16 | 武汉光谷信息光电子创新中心有限公司 | Power-off control method, circuit, device and storage medium |
-
2021
- 2021-11-03 CN CN202111291173.XA patent/CN113746060B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113746060A (en) | 2021-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8441151B2 (en) | Power supply with arc flash protection mechanism and data-processing system employing same | |
| CN106774772B (en) | A kind of hot plug module is for electric installation, method and system | |
| US8896157B2 (en) | Power supply and power supplying system with remote power management function | |
| US9859726B2 (en) | Detection circuit and method for starting charging | |
| CN107547210B (en) | Non-standard power supply equipment, powered equipment and system | |
| EP2625587B1 (en) | Digital rack interface pod (drip) with intelligent power control system and method | |
| CN102043693B (en) | Circularly electrifying test device | |
| CN108933627B (en) | Optical module and optical network system | |
| CN102457384A (en) | Power device | |
| CN104467109A (en) | Method for supplying power to electronic equipment and electronic equipment | |
| JP6194262B2 (en) | DC power supply device and power supply control method | |
| CN113746060B (en) | Protection device for hot plug of laser device | |
| CN108181978B (en) | Power control method and device for electronic equipment | |
| US6204751B1 (en) | Current inrush limiting circuit with fast reset | |
| CN201051664Y (en) | Power supply device and equipment | |
| CN218181479U (en) | Power management system of server mainboard, server and server backboard | |
| CN106227318A (en) | A kind of Apparatus and system of control circuit conversion | |
| CN108491052B (en) | Self-recovery method for hot plug fan | |
| CN114496002A (en) | Power supply circuit and storage device | |
| CN106294223B (en) | It is a kind of realize server network interface card multiplexing device, method and system | |
| CN111045506B (en) | Control method and electronic equipment | |
| CN111402787A (en) | L ED screen power supply control device and method | |
| CN112910041A (en) | Charging circuit of terminal equipment, terminal equipment and terminal system | |
| CN112994139A (en) | Overvoltage protection | |
| CN113036745B (en) | Electronic device for power protection of connection port and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |