CN114019853A - Guide rail type 5G switch power supply - Google Patents
Guide rail type 5G switch power supply Download PDFInfo
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- CN114019853A CN114019853A CN202111254998.4A CN202111254998A CN114019853A CN 114019853 A CN114019853 A CN 114019853A CN 202111254998 A CN202111254998 A CN 202111254998A CN 114019853 A CN114019853 A CN 114019853A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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Abstract
The application relates to a guide tracked 5G switching power supply belongs to the switching power supply field. The guide rail type 5G switching power supply comprises an MC (monomer casting) rectifier and an external rectifying module, the MC rectifier is electrically connected with the external rectifying module, and the input voltage of the external rectifying module is the output voltage of the MC rectifier; the external rectifying module is used for rectifying and outputting the output voltage of the MC rectifier so as to adjust the output voltage of the MC rectifier. After the arrangement, a user can adjust the voltage output of the whole guide rail type 5G switching power supply by adjusting the external rectification module, so that the same guide rail type 5G switching power supply can output different voltages under different conditions to meet different requirements.
Description
Technical Field
The application belongs to the switching power supply field, concretely relates to guide tracked 5G switching power supply.
Background
The guide rail type switch power supply plays a role in providing stable electric energy supply in equipment, and has the advantages of easiness in installation, small interference, compact space and quickness in guide rail installation. With the acceleration of the 5G industrial Internet process of industrial component products, the use frequency of the switching power supply in industrial electric control is higher and higher.
The current switching power supply simply converts alternating current 220VAC into direct current 24VDC for output. However, in many application scenarios in real life, some devices require more than two voltages, such as 24VDC and 5 VDC. Because the existing switching power supply only has the function of outputting one voltage, for example, outputting 24VDC, in this case, if two voltages are to be output, a new switching power supply with 5VDC output is required. Accordingly, a new switching power supply needs to be purchased, which increases economic cost and space cost.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a rail-type 5G switching power supply to solve the defect that the same conventional switching power supply only has a function of outputting one voltage.
The embodiment of the application is realized as follows:
in a first aspect, an embodiment of the present application provides a guide rail type 5G switching power supply, where the guide rail type 5G switching power supply includes an MC rectifier and an external rectification module, the MC rectifier is electrically connected to the external rectification module, and an input voltage of the external rectification module is an output voltage of the MC rectifier; the external rectifying module is used for rectifying and outputting the output voltage of the MC rectifier so as to adjust the output voltage of the MC rectifier.
In this application embodiment, when adjusting external rectifier module to the enabling state, can adjust the voltage that guide tracked 5G switching power supply exported, and then make same guide tracked 5G switching power supply can export two kinds of different voltages at least respectively, in order to satisfy the different demands of equipment, avoid needing the switching power supply of installing among two prior art could satisfy the demand of equipment, and then can practice thrift economic cost and be used for placing switching power supply's space cost.
With reference to the embodiment of the first aspect, in a possible implementation manner, the external rectifying module includes a rectifying bridge, and an input end of the rectifying bridge is an input end of the external rectifying module and is used for being connected to an output end of the MC rectifier; the output of rectifier bridge connects on two fixed ends of potentiometre, and the slip end of potentiometre is connected with the inverting input of comparator, and reference voltage source is connected to the positive phase input of comparator, the output drive transistor of comparator, and the negative pole stiff end of potentiometre concatenates conduct behind the transistor as external rectifier module's negative pole output, the anodal stiff end of potentiometre conduct external rectifier module's positive output still be connected with filter capacitor between two outputs of external rectifier module.
With reference to the embodiment of the first aspect, in a possible implementation manner, the transistor is an NMOS type switching tube.
With reference to the embodiment of the first aspect, in a possible implementation manner, the guideway 5G switching power supply further includes a sensor, configured to collect a data value currently output by the guideway 5G switching power supply. After so setting up to can let the user know guide tracked 5G switching power supply at current behavior under the prerequisite of needn't using the universal meter, with improvement user experience.
With reference to the embodiment of the first aspect, in one possible implementation manner, the sensor includes a voltage sensor, a current sensor, and a load power sensor;
the voltage sensor is used for collecting the voltage state output by the guide rail type 5G switching power supply;
the current sensor is used for collecting the current state output by the guide rail type 5G switching power supply;
and the load power sensor is used for acquiring the load power percentage of the guide rail type 5G switching power supply.
With reference to the embodiment of the first aspect, in a possible implementation manner, the guide rail type 5G switching power supply further includes a logic controller and a display screen, the display screen and the sensor are electrically connected to the logic controller, and the logic controller is configured to receive data acquired by the sensor and send the data to the display screen for display.
In the prior art, when the switching power supply outputs, a multimeter is needed for measurement, otherwise, whether the output voltage value is normal, whether the running state is normal or not and whether the current load is normal or not cannot be intuitively judged, so that the inconvenience is brought if the using condition of the switching power supply needs to be known.
In the embodiment of the application, various data values output by the guide rail type 5G switching power supply at present are displayed in real time through the display screen, so that a user can observe the use condition of the guide rail type 5G switching power supply at any time, and the use experience of the user is improved.
With reference to the embodiment of the first aspect, in a possible implementation manner, the guideway 5G switching power supply further includes a communication module, and the communication module is configured to send a currently output data value of the guideway 5G switching power supply to a mobile terminal in communication connection with the communication module through the communication module for displaying.
With reference to the embodiment of the first aspect, in a possible implementation manner, the communication module is a bluetooth module, and the mobile terminal is a mobile phone with a bluetooth module.
With reference to the embodiment of the first aspect, in a possible implementation manner, the communication module is a WIFI module, and the mobile terminal is a mobile phone with a WIFI module.
With reference to the embodiment of the first aspect, in a possible implementation manner, the rail-type 5G switching power supply further includes a fault detection unit, configured to detect whether the rail-type 5G switching power supply operates normally.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. The foregoing and other objects, features and advantages of the application will be apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be to scale as practical, emphasis instead being placed upon illustrating the subject matter of the present application.
Fig. 1 shows one of schematic structural diagrams of a rail-type 5G switching power supply provided in an embodiment of the present application;
FIG. 2 is a schematic diagram of a rectifier bridge provided in an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating voltage regulation provided by an embodiment of the present application;
fig. 4 shows a second schematic structural diagram of a rail-type 5G switching power supply provided in the embodiment of the present application;
fig. 5 is a third schematic structural diagram of a rail-type 5G switching power supply according to an embodiment of the present application;
fig. 6 shows a fourth schematic structural diagram of a rail-type 5G switching power supply provided in an embodiment of the present application.
Icon: 100-guide rail type 5G switch power supply; a 110-MC rectifier; 120-external rectification module; 121-a rectifier bridge; 130-a sensor; 140-a logic controller; 150-a display screen; 160-communication module.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Meanwhile, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Further, the term "and/or" in the present application is only one kind of association relationship describing the associated object, and means that three kinds of relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.
The defects of the switching power supply in the prior art are the results obtained after the applicant has practiced and studied carefully, and therefore, the discovery process of the above problems and the solutions proposed by the embodiments of the present application in the following should be the contributions of the applicant to the present application in the process of the present application.
In order to solve the above problem, an embodiment of the present application provides a rail-type 5G switching power supply to solve a defect that the same conventional switching power supply only has a function of outputting one voltage.
For ease of understanding, the structure of the rail-mounted 5G switching power supply will be described below.
In general, the guide rail type 5G switching power supply provided by the embodiment of the application is additionally provided with an external rectification module on the basis of the existing switching power supply.
Among other things, existing switching power supplies include MC rectifiers.
Referring to fig. 1, the rail-type 5G switching power supply 100 provided in the embodiment of the present application may include an MC rectifier 110 and an external rectification module 120.
The MC rectifier 110 is electrically connected to the external rectifier module 120.
The MC rectifier 110, which functions similarly to the prior art, mainly functions to convert ac power to dc power.
The external rectifying module 120 is configured to rectify and output the output voltage of the MC rectifier 110 to adjust the output voltage of the MC rectifier 110, and use the output voltage as a final output voltage of the rail-type 5G switching power supply 100.
Specifically, the external rectifying module 120 mainly includes a rectifying bridge 121.
Referring to fig. 2, an input end of the rectifier bridge 121 is an input end of the external rectifier module 120, and is used for connecting an output end of the MC rectifier 110; the output of rectifier bridge 121 connects on two fixed ends of potentiometre, and the slip end of potentiometre is connected with the inverting input of comparator, and reference voltage source is connected to the positive phase input of comparator, the output drive transistor of comparator, and the negative pole fixed end of potentiometre concatenates conduct behind the transistor as external rectifier module 120's negative pole output, the anodal fixed end of potentiometre conduct external rectifier module 120's anodal output still be connected with filter capacitor between two outputs of external rectifier module 120.
In some embodiments, the transistor is an NMOS type switching tube.
Optionally, when the transistor is an NMOS type switching tube, the embodiment adopts a common-anode connection manner, that is, the anode fixed end of the potentiometer is directly used as the anode output end of the external rectification module 120, the NMOS type switching tube is used to control the cathode output end of the external rectification module 120, the voltage output by the rectification bridge 121 is divided by the sliding end of the potentiometer, and the divided voltage value of the potentiometer is compared with the reference voltage VREF. As can be seen from fig. 2, when the voltage at the point a is lower than the voltage at the point b, the comparator outputs a high level to drive the NMOS type switch tube to conduct. At this time, two output terminals of the external rectifying module 120 are directly connected to the rectifying bridge 121, and provide power output to the outside through the filter capacitor C. When the voltage at the point a is higher than the voltage at the point b, the comparator outputs low level, and the NMOS type switch tube is disconnected. At this time, the filter capacitor C is discharged to the output terminal.
As can be seen from fig. 3, fig. 3A shows that the sinusoidal ac power input by the MC rectifier 110 passes through the rectifier bridge 121, and then a pulsating dc voltage as shown in fig. 3B is obtained across the potentiometer W. If the sliding end of the potentiometer W is set to a certain position, a voltage value V1 can be calculated according to the reference voltage VREF. That is, when the voltage value V1 is applied to both ends of the potentiometer W, the voltage at the point a can be made equal to the reference voltage at the point b after the potentiometer division. Thus, when the pulsating dc voltage in fig. 3B is lower than V1, which will make the voltage at point a lower than the voltage at point B, the comparator U outputs a low level, and the transistor is turned on.
When the pulsating direct current voltage in fig. 3B is higher than V1, the voltage at point a is higher than the voltage at point B, the comparator U outputs a high level, and the transistor is turned off. If the output end is not provided with the filter capacitor C, the output waveform shown in fig. 3C is formed, that is, when the output of the rectifier bridge 121 is higher than V1, the transistor is turned off, the voltage of the output end is 0V, if the output is connected with the capacitor C, the output forms the waveform shown in fig. 3D, the larger the value of the capacitor C is, the smaller the ripple is, and the adjustment potentiometer W can change the value of V1, so as to adjust the output voltage.
The transistor works in a switch state, the power consumption is very small, and therefore the circuit has high voltage conversion efficiency.
Therefore, through the above arrangement, a user can adjust the voltage output of the whole guide rail type 5G switching power supply by adjusting the external rectification module 120, so that the same guide rail type 5G switching power supply can output different voltages under different conditions, thereby meeting different requirements.
Certainly, in other embodiments, the transistor may also be a PMOS type switching tube, and correspondingly, the sliding end of the potentiometer is connected to the positive phase input end of the comparator, the negative phase input end of the comparator is connected to the reference voltage source, the output end of the comparator drives the PMOS type switching tube, the positive fixed end of the potentiometer is connected in series to the PMOS type switching tube and then serves as the positive output end of the external rectification module 120, the negative fixed end of the potentiometer serves as the negative output end of the external rectification module 120, and a filter capacitor is further connected between the two output ends of the external rectification module 120.
Of course, it should be noted that the specific implementation of the external rectifying module 120 is only an example, and it should be understood that any circuit structure that can implement the voltage regulating function of the external rectifying module 120 may be applied to the embodiment of the present application.
In addition, it is worth pointing out that, in the prior art, when the same switching power supply is outputting, a multimeter is needed to measure, otherwise, whether the output voltage value is normal, whether the running state is normal, and whether the current load is normal cannot be intuitively determined, so that it is inconvenient to know the use condition of the switching power supply.
In order to solve the above problem, in the embodiment of the present application, please refer to fig. 4, the rail-type 5G switching power supply 100 may further include a sensor 130, configured to collect a current output data value of the rail-type 5G switching power supply 100, so that a user can know a current working condition of the rail-type 5G switching power supply 100 on the premise of not using a multimeter, so as to improve user experience.
Specifically, the sensor 130 includes, but is not limited to, a voltage sensor, a current sensor, and a load power sensor.
The voltage sensor is used for acquiring the voltage state output by the guide rail type 5G switching power supply 100; the current sensor is used for collecting the current state output by the guide rail type 5G switching power supply 100; the load power sensor is used for collecting the load power percentage of the guide rail type 5G switching power supply 100.
Further, in order to make the user more intuitively know the current working condition of the track-type 5G switching power supply 100, referring to fig. 5, in some embodiments, the track-type 5G switching power supply 100 further includes a logic controller 140 and a display 150.
The display screen 150 and the sensor 130 are electrically connected to the logic controller 140.
The logic controller 140 may be a component having a data processing function, such as a PLC or a CPU.
In this embodiment, the sensor 130 is configured to send the currently acquired real-time data or the data acquired in one cycle to the logic controller 140 via the 485 communication bus.
The logic controller 140 is configured to receive the data collected by the sensor 130, and send the data to the display screen 150, so that the display screen 150 can display the data collected by the sensor 130 in real time, and a user can check the data in real time, and then the user can know that the guide rail type 5G switching power supply 100 is in the current working condition on the premise of not using a multimeter, so as to improve user experience.
In order to allow a user to remotely know the current operation of the track-type 5G switching power supply 100, in some embodiments, referring to fig. 6, the track-type 5G switching power supply 100 further includes a communication module 160.
The communication module 160 may be connected to the logic controller 140, and configured to send the currently output data value of the rail-type 5G switching power supply 100 to a mobile terminal communicatively connected to the communication module 160 for displaying.
Correspondingly, can install corresponding APP on mobile terminal, when the user opened APP, can obtain the data value that communication module 160 sent to show on mobile terminal, so that use user can know guide tracked 5G switching power supply 100 at current behavior through the data value remote that receives on mobile terminal.
Specifically, in some embodiments, the communication module 160 may be a bluetooth module, and accordingly, the mobile terminal is a mobile phone with a bluetooth module.
In particular, in some embodiments, the communication module 160 may be a WIFI module,
correspondingly, the mobile terminal is a mobile phone with a WIFI module.
In addition, in some embodiments, the user can also check the power supply running state of the rail-type 5G switching power supply 100 within a preset time period, for example, 15 days, through the mobile phone APP software.
The power supply running state includes, but is not limited to, the factory date of the 5G switching power supply 100, an input current peak value table, an output current monitoring table and other information, so that a data traceable query function can be realized, interference risks existing in a power grid circuit can be found in time, and the service life and fault monitoring can be carried out in advance according to the running time.
For example, in some embodiments, a service time threshold may be built in the 5G switching power supply 100 in advance, and the 5G switching power supply 100 continuously accumulates its service time during the working process, and compares the continuously accumulated service time with the built-in service time threshold, when it is determined that the continuously accumulated service time is equal to the built-in service time threshold, it may be determined that the 5G switching power supply 100 may have a service life risk, and an early warning is issued, indicating that the 5G switching power supply 100 needs to be paid extra attention to at this time.
In addition, in some embodiments, on the premise that the rail-type 5G switching power supply 100 includes the sensor 130, the rail-type 5G switching power supply 100 further includes a fault detection unit for detecting whether the rail-type 5G switching power supply 100 is operating normally.
Specifically, a normal threshold range corresponding to an object to be monitored by each sensor may be preset in the fault detection unit of the rail-type 5G switching power supply 100, so that when the sensor 130 collects corresponding data, the collected real-time data may be sent to the fault detection unit (the sensor 130 is electrically coupled to the fault detection unit directly or indirectly), so that the fault detection unit may compare the received real-time data with the corresponding normal threshold range. When the fault detection unit judges that the real-time data is not within the normal threshold range, it can be determined that the real-time data is abnormal, and correspondingly, the function corresponding to the current rail-type 5G switching power supply 100 for outputting the real-time data also has fault abnormality.
In summary, the embodiment of the present application provides a guide rail type 5G switching power supply, where the guide rail type 5G switching power supply includes an MC rectifier and an external rectification module, the MC rectifier is electrically connected to the external rectification module, and an input voltage of the external rectification module is an output voltage of the MC rectifier; the external rectifying module is used for rectifying and outputting the output voltage of the MC rectifier so as to adjust the output voltage of the MC rectifier. After the arrangement, a user can adjust the voltage output of the whole guide rail type 5G switching power supply by adjusting the external rectification module, so that the same guide rail type 5G switching power supply can output different voltages under different conditions to meet different requirements.
In addition, guide tracked 5G switching power supply can also include the sensor, is used for gathering guide tracked 5G switching power supply is at the data value of present output to can let the user know guide tracked 5G switching power supply at current behavior under the prerequisite of needn't using the universal meter, in order to improve user experience.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
Claims (10)
1. A guide rail type 5G switch power supply is characterized in that the guide rail type 5G switch power supply comprises an MC (monomer casting) rectifier and an external rectification module, wherein the MC rectifier is electrically connected with the external rectification module, and the input voltage of the external rectification module is the output voltage of the MC rectifier;
the external rectifying module is used for rectifying and outputting the output voltage of the MC rectifier so as to adjust the output voltage of the MC rectifier.
2. The guide rail type 5G switching power supply according to claim 1, wherein the external rectifying module comprises a rectifying bridge, and an input end of the rectifying bridge is an input end of the external rectifying module and is used for being connected with an output end of the MC rectifier; the output of rectifier bridge connects on two fixed ends of potentiometre, and the slip end of potentiometre is connected with the inverting input of comparator, and reference voltage source is connected to the positive phase input of comparator, the output drive transistor of comparator, and the negative pole stiff end of potentiometre concatenates conduct behind the transistor as external rectifier module's negative pole output, the anodal stiff end of potentiometre conduct external rectifier module's positive output still be connected with filter capacitor between two outputs of external rectifier module.
3. The rail-mounted 5G switching power supply of claim 2, wherein the transistor is an NMOS type switching tube.
4. The guideway 5G switching power supply of claim 1, further comprising a sensor to collect a data value currently output by the guideway 5G switching power supply.
5. The rail-mounted 5G switching power supply of claim 4, wherein the sensors comprise a voltage sensor, a current sensor, a load power sensor;
the voltage sensor is used for collecting the voltage state output by the guide rail type 5G switching power supply;
the current sensor is used for collecting the current state output by the guide rail type 5G switching power supply;
and the load power sensor is used for acquiring the load power percentage of the guide rail type 5G switching power supply.
6. The guideway 5G switching power supply of claim 4 or 5, further comprising a logic controller and a display screen, wherein the display screen and the sensor are electrically connected with the logic controller respectively, and the logic controller is configured to receive data collected by the sensor and send the data to the display screen for display.
7. The guideway 5G switching power supply of claim 6, further comprising a communication module, wherein the communication module is configured to send the currently output data value of the guideway 5G switching power supply to a mobile terminal communicatively connected to the communication module for display via the communication module.
8. The guideway 5G switching power supply of claim 7, wherein the communication module is a Bluetooth module, and the mobile terminal is a mobile phone with a Bluetooth module.
9. The guideway 5G switching power supply of claim 7, wherein the communication module is a WIFI module, and the mobile terminal is a mobile phone with a WIFI module.
10. The guideway 5G switching power supply of claim 7, further comprising a fault detection unit for detecting whether the guideway 5G switching power supply is operating normally.
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| CN202111254998.4A CN114019853A (en) | 2021-10-27 | 2021-10-27 | Guide rail type 5G switch power supply |
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| CN202111254998.4A CN114019853A (en) | 2021-10-27 | 2021-10-27 | Guide rail type 5G switch power supply |
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| CN201674402U (en) * | 2010-05-07 | 2010-12-15 | 格灵威科技(厦门)有限公司 | Switch power circuit |
| CN202713178U (en) * | 2012-08-21 | 2013-01-30 | 重庆三弓科技发展有限公司 | Voltage adjustable rectification circuit |
| CN204597791U (en) * | 2015-03-31 | 2015-08-26 | 安徽工程大学 | A kind of digital switch power supply based on DSP |
| CN105182249A (en) * | 2015-08-09 | 2015-12-23 | 安徽普为智能科技有限责任公司 | Fault diagnosis method of high-power switching power supply |
| CN204835956U (en) * | 2015-08-27 | 2015-12-02 | 山东兆宇电子技术有限公司 | High frequency switching power supply system with NULL and measurement of direct current the power output |
| CN205792278U (en) * | 2016-05-31 | 2016-12-07 | 深圳市纳林科技有限公司 | A kind of intelligent control switch power supply |
| CN207117467U (en) * | 2017-08-18 | 2018-03-16 | 深圳信瑞新能源科技有限公司 | A kind of new digital display Switching Power Supply |
| CN207069884U (en) * | 2017-08-21 | 2018-03-02 | 中防通用河北电信技术有限公司 | A kind of novel guideway Switching Power Supply |
| CN208028769U (en) * | 2017-12-12 | 2018-10-30 | 佛山市沃曼德电子科技有限公司 | High frequency switch power with real-time voltage electric current display function |
| CN111509855A (en) * | 2020-04-24 | 2020-08-07 | 亿联智能科技(台州)有限公司 | Multifunctional digital Internet switching power supply and control method thereof |
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