CN209419307U - Power supply circuit system and electronic equipment - Google Patents
Power supply circuit system and electronic equipment Download PDFInfo
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- CN209419307U CN209419307U CN201920107445.8U CN201920107445U CN209419307U CN 209419307 U CN209419307 U CN 209419307U CN 201920107445 U CN201920107445 U CN 201920107445U CN 209419307 U CN209419307 U CN 209419307U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
This application discloses the power supply circuit systems and electronic equipment of a kind of electronic equipment, power supply circuit system includes main power board and auxiliary power plate, main power board and auxiliary power plate include taking electric end, with the respective standby power group for taking electric end to be electrically connected and controlled power supply group, main circuit of the controlled power supply group under the control of first control signal for electronic equipment provides or stops power supply, it further include control panel and control signaling device, for being electrically connected with external power supply, it is provided with electric-controlled switch, auxiliary power plate takes electric end to be electrically connected with electric-controlled switch, electric-controlled switch is used to execute switch operation under the control of second control signal, so that be switched on or switched off auxiliary power plate takes being electrically connected for electric end and external power supply, main power board takes electric end to be electrically connected with external power supply, signaling device is controlled for issuing the first control Signal processed and second control signal.The application be able to solve interactive large-size screen monitors it is standby when power consumption excessive problem.
Description
Technical field
This application involves electronic technology field, especially a kind of power supply circuit system and electronic equipment.
Background technique
As science and technology develops on a large scale, large screen electronic equipment becomes the trend of development, and powerful interactive large-size screen monitors are by it
Structure limitation, needs using two power panels while powering, while its stand-by power consumption also being required to be less than or equal to 0.5W.Industry at present
Interior dual power supply merges mainly using directly controlling the realization of PS_ON signal, and when normal work, PS_ON signal is high level, two electricity
Source plate while out-put supply；When standby, PS_ON signal is low level, and two power panels are simultaneously stopped power supply output, but in the two
Partial circuit also charge, be PS_ON signal issue device power.Obviously, existing this electronic equipment is two when standby
A power panel is working always, causes its stand-by power consumption exceeded.
Utility model content
In view of this, the purpose of the application is to provide a kind of power supply circuit system and electronic equipment, it is interactive big to solve
Power consumption excessive problem when shielding standby.
In order to achieve the above objectives, the application adopts the following technical scheme that
This application provides the power supply circuit system of a kind of electronic equipment, including main power board and auxiliary power plate, the masters
Power panel and the auxiliary power plate include take electric end, with the respective standby power group for taking electric end to be electrically connected and controlled power supply electricity
Source group, wherein the controlled power supply group under the control of first control signal for the main circuit of electronic equipment for providing
Or stop power supply,
It further include control panel and control signaling device, the control panel with external power supply for being electrically connected, the control
Electric-controlled switch is provided in making sheet, the auxiliary power plate takes electric end to be electrically connected with the electric-controlled switch, and the electric-controlled switch is used
In under the control of second control signal execute switch operation, so as to be switched on or switched off the auxiliary power plate take electric end with it is described
The electrical connection of external power supply, the main power board take electric end to be electrically connected with the external power supply, and the control signal issues dress
It sets for issuing the first control signal and the second control signal.
Optionally, the auxiliary power plate is identical as the structure of the main power board.
Optionally, the controlled confession on the output end and the auxiliary power plate of the controlled power supply group in the main power board
The output end of power supply group is electrically connected.
Optionally, the main power board takes electric end to be electrically connected via the control panel with the external power supply, alternatively, institute
That states main power board takes electric end to be directly electrically connected with the external power supply.
Optionally, the control signaling device have first port and second port, wherein the first port with
Controlled power supply group electrical connection in the main power board, the auxiliary power plate, to be used to issue the first control signal,
The second port is electrically connected with the electric-controlled switch, for issuing the second control signal.
Optionally, the control signaling device also has third port, for receiving external control instruction, so as to root
The first control signal and the second control signal are issued according to the external control instruction.
Optionally, the control signaling device also has time delay module, for providing scheduled amount of delay, so that institute
Control signaling device is stated after issuing one in the first control signal and the second control signal, by described
Another is issued again after amount of delay.
Optionally, the main power board and the auxiliary power plate include forceful electric power source group, for will be from external power supply
Forceful electric power is converted to light current, and is supplied to corresponding standby power group and controlled power supply group, wherein each standby power group
It is electrically connected between the group of corresponding forceful electric power source for normal open.
The second aspect of the application provides a kind of electronic equipment, including as above described in any item power supply circuit systems.
Optionally, the electronic equipment is interactive display screen, interactive intelligent tablet computer or flat panel TV.
Power supply circuit system provided by the present application is provided with control panel and control signaling device, is arranged on control panel
There is electric-controlled switch, make auxiliary power plate takes electric end to be electrically connected by electric-controlled switch with external power supply, and main power board takes electric end to begin
It is electrically connected always with external power supply eventually, when working properly, control signaling device is by sending second control signal control
Electric-controlled switch closure, make auxiliary power plate takes electric end to be powered, and then controls signaling device by sending first control signal
Make the controlled power supply group power electronic equipment of main power board and auxiliary power plate；When stand-by operation, control signal is issued
Device, which sends first control signal, stops main power board and the controlled power supply group of auxiliary power plate to power electronic equipment, with
Control signaling device controls electric-controlled switch disconnection by sending second control signal afterwards, and make auxiliary power plate takes electric end disconnected
Electricity consumes power consumption at this point, only main power board is electrically connected with external power supply, and auxiliary power plate is disconnected with external power supply completely, therefore,
Using this power supply circuit system of the application, when can save power consumption when standby, and then avoid large-size screen monitors electronic equipment standby
Power consumption is exceeded.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present application, the above-mentioned and other purpose of the application, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 shows the system diagram of power supply circuit system provided by the present application.
In figure,
1, main power board；11, first electric end is taken；12, the first standby power group；13, the first controlled power supply group；14,
First forceful electric power source group；
2, main power board；21, second electric end is taken；22, the second standby power group；23, the second controlled power supply group；24,
Second forceful electric power source group；
3, electric-controlled switch；
4, signaling device is controlled；41, first port；42, second port；
5, external power supply；.
Specific embodiment
The application is described below based on embodiment, but the application is not restricted to these embodiments.Under
Text is detailed to describe some specific detail sections in the datail description of the application, in order to avoid obscuring the essence of the application,
There is no narrations in detail for well known method, process, process, element.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
In the description of the present application, it is to be understood that term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present application, unless otherwise indicated, the meaning of " multiple "
It is two or more.
It is understood that the nouns of locality such as "front", "rear" described herein refer to that display screen is working normally shape
Orientation under state, when in face of display screen.
This application provides a kind of electronic equipment, such as interactive display screen, interactive intelligent tablet computer or flat panel TV, including confession
Electric circuit system, for providing power supply for electronic equipment.
With reference to Fig. 1, the power supply circuit system of electronic equipment includes main power board 1 and auxiliary power plate 2, control panel and control letter
Number issue device 4, main power board 1 and auxiliary power plate 2 include take electric end, with the respective standby power group for taking electric end to be electrically connected
With controlled power supply group, for convenience described below, definition: main power board 1 takes electric end to take electric end 11 for first, to electromechanics
Source group is the first standby power group 12, and controlled power supply group is the first controlled power supply group 13；Auxiliary power plate 2 takes electric end
Electric end 21 is taken for second, standby power group is the second standby power group 22, and controlled power supply group is the second controlled power supply
Group 23, then the first standby power group 12 and the first controlled power supply group 13 take electric end 11 to be electrically connected with first, and second is standby
Power supply group 22 and the second controlled power supply group 23 take electric end 21 to be electrically connected with second.Wherein, controlled power supply group (including
First controlled power supply group 13 and the second controlled power supply group 23) for being set under the control of first control signal for electronics
Standby main circuit provides or stops power supply.Control panel is used to be electrically connected with external power supply 5, and electric-controlled switch 3 is provided on control panel,
Auxiliary power plate 2 takes electric end (i.e. second takes electric end 21) to be electrically connected with electric-controlled switch 3, and electric-controlled switch 3 is used in the second control letter
Number control under execute switch operation, so that connect or disconnect auxiliary power plate 2 takes being electrically connected for electric end and external power supply 5,
I.e. second takes electric end 21 be electrically connected with external power supply 5 by electric-controlled switch 3, in the disconnection of electric-controlled switch 3, second take electric end 21 and
External power supply 5 disconnects；When electric-controlled switch 3 is closed, second takes electric end 21 to be connected with external power supply.Wherein, main power board 1 takes
Electric end is electrically connected with external power supply 5, i.e., first takes electric end 11 to connect always with external power supply 5.Control signaling device 4 its with
Electric-controlled switch 3, the first controlled power supply group 13, the second controlled 23 signal of power supply group connection, for issuing the first control
Signal and second control signal.
Above-mentioned power supply circuit system, is provided with the control panel with electric-controlled switch 3, and auxiliary power plate 2 is made to pass through electric-controlled switch 3
It is connect with external power supply 5, and the first controlled power supply group 13 and the second controlled power supply group 23 are needed in the first control letter
Number control under can supplying power for outside pass through second control signal and control electric-controlled switch 3 and disconnect in this way, in the standby state
Realize that auxiliary power plate 2 and external power supply 5 disconnect, only main power board 1 is electrically connected with external power supply 5, and therefore, only main power board 1 disappears
Power consumption, to reduce electronic equipment in the power of standby mode.
Wherein, in the standby state, control signaling device 4 can be powered by main power board 1, specifically, be continued
With reference to Fig. 1, the first standby power group 12 is electrically connected always with control signaling device 4, and the two is connected.
Specifically, switch member is provided in the first controlled power supply group 13 and the second controlled power supply group 23
Part, such as metal-oxide-semiconductor, the first controlled power supply group 13 take electric end 11 to connect by switch element thereon with first, and second is controlled
Power supply group 23 takes electric end 21 to connect by switch element thereon with second, and in practical operation, first control signal is logical
It crosses and controls the switch element in controlled power supply group and realize that the electric end of controlled power supply group taking corresponding thereto connects, that is, exist
In any power panel of main power board 1 and auxiliary power plate 2, when the switch element closure in controlled power supply group, controlled confession
The output end of power supply group is just connected with electric end is taken；When the switch element in controlled power supply group disconnects, controlled power supply electricity
The output end of source group is disconnected with electric end is taken.
The mainboard that signaling device 4 can be electronic equipment is controlled, first control signal includes cut-off signal and closure
Signal can be high level signal with closure signal, and cut-off signal is low level signal, as first control signal specifically includes PS_
ON high level signal and PS_ON low level signal；Second control signal also includes cut-off signal and closure signal.Electric-controlled switch 3
It can be electromagnetic switch, reverse-blocking tetrode thyristor or metal-oxide-semiconductor etc..First controlled power supply group 13 and the second controlled power supply group
23 are also used to power to control signaling device 4, it should be noted that first the 12, first controlled power supply electricity of standby power group
Source group 13, the second controlled power supply group 23 can be respectively the different components or different units for controlling signaling device 4
Power supply.
In view of the generally light current that external power supply 5 is generally forceful electric power, and uses in electronic equipment, a kind of reality of the application
It applies in example, main power board 1 and auxiliary power plate 2 also include forceful electric power source group, weak for being converted to the forceful electric power from external power supply 5
Electricity, and it is supplied to corresponding standby power group and controlled power supply group, so that standby power group and controlled power supply group are defeated
Light current out, i.e. one end of forceful electric power source group are forceful electric power, and the other end is light current.Wherein, each standby power group and corresponding forceful electric power source group
Between for normal open be electrically connected.With reference to Fig. 1, main power board 1 further includes the first forceful electric power source group 14, one end of the first forceful electric power source group 14 with
First takes electric end 11 to be electrically connected, and the other end is electrically connected with the first standby power group 12 and the first controlled power supply group 13, due to
First takes electric end 11 to conduct always with external power supply 5, and therefore, the first standby power group 12 has electricity always, with control signal
Issue device 4 is electrically connected, to power in the standby state for control signaling device 4；Auxiliary power plate 2 further includes the second forceful electric power
One end of source group 24, the second forceful electric power source group 24 takes electric end 21 to be electrically connected with second, the other end and the second standby power group 22 and
Two controlled power supply groups 23 are electrically connected.It is worth noting that, in main power board 1 and auxiliary power plate 2, respective forceful electric power source group
It is all connected to corresponding controlled power supply group.
Wherein, the structure of auxiliary power plate 2 and main power board 1 may be the same or different, when the two structure is identical,
It can be convenient for designing and manufacturing for power panel, and welding and assembly, reduce the cost of manufacture of power panel, and the two structure is set
It is set to identical, the serious forgiveness of power supply system connection can be reduced as far as possible.
First controlled power supply group 13 can power alone outward with the second controlled power supply group 23, in order to guarantee two
The synchronism of person's supplying power for outside, in a kind of embodiment, the output end and auxiliary power plate of the controlled power supply group in main power board 1
The output end of controlled power supply group on 2 is electrically connected, i.e., the first controlled power supply group 13 and the second controlled power supply group
Again by public output supplying power for outside after both 23 output end connection, can be powered with the display screen of electron equipment, it can also
To power to control signaling device 4, as described above, the public output and the first standby power group 12 give control signal hair
The different piece power supply of device 4 out.
In the various embodiments described above, main power board 1 takes electric end that can be electrically connected via control panel with external power supply 5, i.e., and
One takes electric end 11 to be also connected to control panel, but it takes electric end 11 direct by route thereon without electric-controlled switch 3, such as first
It is connected to external power supply 5, this mode keeps the connection of main power board 1 and auxiliary power plate 2 almost the same, is conducive to circuit system
Assembly；And reduce by the first conducting wire for taking electric end 11 to connect with external power supply 5, reduce the number of conductors in power supply circuit system.
Main power board 1 takes electric end that can also directly be electrically connected and (conduct) with external power supply 5, and such structure can reduce control
The complexity of plate reduces the tie point of route.Certainly, first take electric end 11 that can also set by power supply circuit system or electronics
Route in standby interior other component is connect with external power supply 5.
In a kind of embodiment, control signaling device 4 has first port 41 and second port 42, wherein first end
Mouthfuls 41 are electrically connected with the controlled power supply group on main power board 1, auxiliary power plate 2, to be used to issue first control signal, second
Port 42 is electrically connected with electric-controlled switch 3, this to control different components respectively by two ports for issuing second control signal
Mode, can reduce the serious forgiveness of control, improve the reliability and stability of power supply circuit system and electronic equipment.
Further, control signaling device 4 also has third port (not shown), for receiving external control
Instruction, to issue first control signal and second control signal according to external control instruction, if external command can be standby
Instruction works normally instruction, is interactive display screen in electronic equipment, external control instruction can be issued by remote controler, outside
Portion's control instruction can be standby command, power-on instruction perhaps shutdown command etc. its can pass through infrared signal or other letter
Number mode is sent to third port, and control signaling device 4 sends first control signal and the according to the external control instruction
Two control signals, if remote controler sends standby command, after third port receives the instruction, control signaling device 4 is executed
The control of above-mentioned standby mode.
In addition, the reliability in order to guarantee the control of power supply circuit system, control signaling device 4 also has time delay module
(not shown), for providing scheduled amount of delay, so that control signaling device is issuing first control signal and the
After one in two control signals, another is issued again after amount of delay.
It continues to refer to figure 1, in above-mentioned power supply system work, when electronic equipment is in standby, electric-controlled switch 3 is disconnected
It opens, the first of main power board 1 takes electric end 11 with forceful electric power, which is converted to light current by the first forceful electric power source group 14, makes first standby
Power supply group 12 is powered with light current, and then for control signaling device 4, at this point, the switch in the first controlled power supply group 13
Element is in an off state, and the first controlled power supply group 13 and the first forceful electric power source group 14 are in off state, is not also supplied externally
Electricity.Meanwhile electric-controlled switch 3 is in an off state, second take electric end 21 one end and the second forceful electric power source group 24 be connected, the other end with
The conducting of second standby power group 22, but the switch element in the second controlled power supply group 23 is also at off-state at this time, the
Two controlled power supply groups 23 and the second forceful electric power source group 24 are in off state, i.e. the second of auxiliary power plate 2 takes electric end 21, second
Forceful electric power source group 24, the second standby power group 22, the second controlled power supply group 23 are not charged, the second controlled power supply group 23
Also not supplying power for outside.
When control signaling device 4 receive work normally signal when, firstly, control signaling device 4 is to automatically controlled
Switch 3 sends the closure signal in second control signal, and electric-controlled switch 3 is closed, and second takes electric end 21 to be connected with external power supply 5,
At this point, second taking electric end 21, the second forceful electric power source group 24, the second controlled power supply group 23 and second to electromechanics in auxiliary power plate 2
Source group 22 with the state of corresponding component is identical in main power board 1 when standby mode, i.e., the second of auxiliary power plate 2 takes electric 21 band of end
The forceful electric power is converted to light current, makes the second standby power group 22 with light current by forceful electric power, the second forceful electric power source group 24, and second controlled at this time
Switch element in power supply group 23 is still in off-state, and the second controlled power supply group 23 and the second forceful electric power source group 24 are still
In off state, also supplying power for outside, main power board 1 at this time do not maintain standby mode still.Then, signaling device is controlled
4 after issuing 3 closure signal of electric-controlled switch, delay a period of time, to the first controlled power supply group 13 and the second controlled power supply
Power supply group 23 sends the closure signal of first control signal, such as sends PS_ON high level signal, the first controlled power supply group 13
With the second controlled power supply group 23 after receiving PS_ON high level signal, the switch element being closed on respectively, at this point, the
One controlled power supply group 13 and the first forceful electric power source group 14 are in the conductive state, power outward, meanwhile, the second controlled power supply
Group 23 is in the conductive state with the second forceful electric power source group 24, and also power supply, entire power supply circuit system are entered by standby mode outward
Normal operating conditions.
When control signaling device 4 receives stand-by operation signal, firstly, control signaling device 4 to first
Controlled power supply group 13 and the second controlled power supply group 23 send the cut-off signal of first control signal, PS_ON low level
Signal, the first controlled power supply group 13 and the second controlled power supply group 23 are after receiving PS_ON low level signal, the two
On switch element disconnect, i.e., switch to off-state between the first controlled power supply group 13 and the first forceful electric power source group 14, second
Switch to off-state between controlled power supply group 23 and the second forceful electric power source group 24, the two stops external out-put supply.Then,
Signaling device 4 is controlled after issuing PS_ON low level signal, delay a period of time, is sent to electric-controlled switch 3 and disconnects letter
Number, electric-controlled switch 3 disconnects, and main power board 1 and auxiliary power plate 2 enter above-mentioned standby mode.
Those skilled in the art will readily recognize that above-mentioned each preferred embodiment can be free under the premise of not conflicting
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from the basic of the application
In the case where principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details is made
It changes, is all included within the scope of claims hereof.
Claims (10)
1. the power supply circuit system of a kind of electronic equipment, including main power board and auxiliary power plate, the main power board and the pair
Power panel include take electric end, with the respective standby power group for taking electric end to be electrically connected and controlled power supply group, wherein it is described
Main circuit of the controlled power supply group under the control of first control signal for electronic equipment provides or stops power supply, special
Sign is,
It further include control panel and control signaling device, the control panel with external power supply for being electrically connected, the control panel
On be provided with electric-controlled switch, the auxiliary power plate takes electric end to be electrically connected with the electric-controlled switch, the electric-controlled switch be used for
Switch operation is executed under the control of second control signal, so that be switched on or switched off the auxiliary power plate takes electric end and the outside
The electrical connection of power supply, the main power board take electric end to be electrically connected with the external power supply, and the control signaling device is used
In the sending first control signal and the second control signal.
2. power supply circuit system according to claim 1, which is characterized in that
The auxiliary power plate is identical as the structure of the main power board.
3. power supply circuit system according to claim 1, which is characterized in that
Controlled power supply group on the output end and the auxiliary power plate of controlled power supply group in the main power board
Output end electrical connection.
4. power supply circuit system according to claim 1, which is characterized in that
The main power board takes electric end to be electrically connected via the control panel with the external power supply, alternatively, the main power board
Take electric end to be directly electrically connected with the external power supply.
5. power supply circuit system described in one of -4 according to claim 1, which is characterized in that
The control signaling device has first port and second port, wherein the first port and the main power source
Controlled power supply group electrical connection on plate, the auxiliary power plate, for issuing the first control signal, the second end
Mouth is electrically connected with the electric-controlled switch, for issuing the second control signal.
6. power supply circuit system according to claim 5, which is characterized in that
The control signaling device also has third port, for receiving external control instruction, so as to according to the outside
Control instruction issues the first control signal and the second control signal.
7. power supply circuit system according to claim 5, which is characterized in that
The control signaling device also has time delay module, for providing scheduled amount of delay, so that the control signal
Issue device is after issuing one in the first control signal and the second control signal, after the amount of delay again
Issue another.
8. power supply circuit system described in one of -4 according to claim 1, which is characterized in that
The main power board and the auxiliary power plate include forceful electric power source group, weak for being converted to the forceful electric power from external power supply
Electricity, and be supplied to corresponding standby power group and controlled power supply group, wherein each standby power group and corresponding forceful electric power
It is electrically connected between the group of source for normal open.
9. a kind of electronic equipment, which is characterized in that including power supply circuit system described according to claim 1 one of -8.
10. electronic equipment according to claim 9, which is characterized in that the electronic equipment is interactive display screen, interaction
Intelligent flat or flat panel TV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107445.8U CN209419307U (en) | 2019-01-22 | 2019-01-22 | Power supply circuit system and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107445.8U CN209419307U (en) | 2019-01-22 | 2019-01-22 | Power supply circuit system and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209419307U true CN209419307U (en) | 2019-09-20 |
Family
ID=67944420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920107445.8U Active CN209419307U (en) | 2019-01-22 | 2019-01-22 | Power supply circuit system and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209419307U (en) |
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2019
- 2019-01-22 CN CN201920107445.8U patent/CN209419307U/en active Active
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