CN109038804A - A kind of power switching circuit and electronic equipment - Google Patents
A kind of power switching circuit and electronic equipment Download PDFInfo
- Publication number
- CN109038804A CN109038804A CN201811119630.5A CN201811119630A CN109038804A CN 109038804 A CN109038804 A CN 109038804A CN 201811119630 A CN201811119630 A CN 201811119630A CN 109038804 A CN109038804 A CN 109038804A
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- China
- Prior art keywords
- switching circuit
- circuit
- rechargeable battery
- power supply
- load
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of power switching circuit and electronic equipments, including charging circuit, switching circuit and the counnter attack diode for charging for rechargeable battery；Wherein: the output end of the external power supply of electronic equipment is connect with the anode of the input terminal of charging circuit, the control terminal of switching circuit and counnter attack diode respectively, the output end of charging circuit is connect with the first end of the anode of rechargeable battery and switching circuit respectively, the cathode of rechargeable battery is grounded, and the second end of switching circuit is connect with the feeder ear of the cathode of counnter attack diode and apparatus of load respectively；Switching circuit is used to itself disconnect when the output voltage of external power supply is greater than the demand voltage of apparatus of load, and rechargeable battery is made to be in idle state；Conversely, itself automatic conducting makes rechargeable battery apparatus of load power.As it can be seen that the switch speed of the power switching circuit of the application is very fast, the phenomenon that equipment is restarted not will lead to, to improve the stability and duration performance of equipment.
Description
Technical field
The present invention relates to power supply technique fields, more particularly to a kind of power switching circuit and electronic equipment.
Background technique
Currently, the inside of most of electronic equipments is equipped with rechargeable battery in the market, outside for power electronic equipment
Portion's power cut-off or voltage is lower when being unable to satisfy the power demands loaded in equipment, can switch to internal rechargeable battery
(internal electric source) power supply, to increase the time that electronic equipment continues working, that is, enhances its cruising ability.In the prior art,
The mode for generalling use manual switch switches the external power supply and internal electric source of electronic equipment, still, the manual switching mode
Switch speed is slower, will lead to the phenomenon that equipment is restarted, to affect the stability and duration performance of equipment.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that those skilled in the art needs to solve at present
The problem of.
Summary of the invention
The object of the present invention is to provide a kind of power switching circuit and electronic equipments, with manual switching side in the prior art
Formula is compared, and the switch speed of the automatic switching mode of the application is very fast, not will lead to the phenomenon that equipment is restarted, to improve
The stability and duration performance of equipment.
In order to solve the above technical problems, being applied to include rechargeable battery the present invention provides a kind of power switching circuit
Electronic equipment, including the charging circuit, switching circuit and counnter attack diode for charging for the rechargeable battery；Wherein:
The output end of the external power supply of the electronic equipment respectively with the input terminal of the charging circuit, the switching circuit
Control terminal and the counnter attack diode anode connection, the output end of the charging circuit respectively with the rechargeable battery
The positive first end with the switching circuit connects, the cathode ground connection of the rechargeable battery, the second end of the switching circuit
It is connect respectively with the feeder ear of the cathode of the counnter attack diode and apparatus of load；
The switching circuit is used for when the output voltage of the external power supply is greater than the demand voltage of the apparatus of load
Itself is disconnected, and the rechargeable battery is made to be in idle state；Conversely, itself automatic conducting keeps the rechargeable battery described
Apparatus of load power supply.
Preferably, the switching circuit includes regulating circuit and switching tube；Wherein:
Control terminal of the first end of the regulating circuit as the switching circuit, the second end of the regulating circuit and institute
State the control terminal connection of switching tube, the first end and second end of the switching tube to the first end that should be used as the switching circuit and
Second end；
The regulating circuit is used to adjust the voltage for the control terminal that the external power supply is exported to the switching tube, makes described
The on off operating mode of switching tube meets the power switching condition of the electronic equipment.
Preferably, the switching tube is specially PMOS tube, control terminal of the grid of the PMOS tube as the switching tube,
First end of the source electrode of the PMOS tube as the switching tube, second to drain as the switching tube of the PMOS tube
End.
Preferably, the regulating circuit includes the first divider resistance and the second divider resistance；Wherein:
First end of the first end of first divider resistance as the regulating circuit, the of first divider resistance
Two ends are connect with the first end of second divider resistance, second end of the common end as the regulating circuit, and described second
The second end of divider resistance is grounded.
Preferably, first divider resistance and second divider resistance are specially adjustable resistance.
Preferably, the charging circuit is specially TP4054 charging chip.
Preferably, the power switching circuit further include:
First end connect with the second end of the switching circuit, second end respectively with the cathode of the counnter attack diode and institute
The toggle switch for stating the feeder ear connection of apparatus of load, for accordingly controlling the rechargeable battery using itself on off operating mode
Select situation.
In order to solve the above technical problems, the present invention also provides a kind of electronic equipment, including rechargeable battery and equipment are born
It carries, further includes any of the above-described kind of power switching circuit.
The present invention provides a kind of power switching circuits, applied to the electronic equipment comprising rechargeable battery, including are used for
For charging circuit, switching circuit and the counnter attack diode of rechargeable battery charging；Wherein: the output of the external power supply of electronic equipment
End connect respectively with the anode of the input terminal of charging circuit, the control terminal of switching circuit and counnter attack diode, charging circuit it is defeated
Outlet is connect with the first end of the anode of rechargeable battery and switching circuit respectively, the cathode ground connection of rechargeable battery, switch electricity
The second end on road is connect with the feeder ear of the cathode of counnter attack diode and apparatus of load respectively；Switching circuit is used in external power supply
Output voltage be greater than apparatus of load demand voltage when itself disconnect, so that rechargeable battery is in idle state；Conversely, itself
Automatic conducting makes rechargeable battery apparatus of load power.
The power switching circuit of the application is when the output voltage of external power supply is greater than the demand voltage of apparatus of load, by outer
Portion's power supply is apparatus of load power supply, and rechargeable battery is in idle state at this time；And the output voltage in external power supply is not more than
When the demand voltage of apparatus of load, rechargeable battery power supply is automatically switched to using switching circuit.With hand in the prior art
Dynamic switching mode is compared, and the switch speed of the automatic switching mode of the application is very fast, not will lead to the phenomenon that equipment is restarted,
To improve the stability and duration performance of equipment.
The present invention also provides a kind of electronic equipment, with above-mentioned power switching circuit beneficial effect having the same.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of power switching circuit provided by the invention；
Fig. 2 is a kind of structural schematic diagram of external power supply provided by the invention；
Fig. 3 is the structural schematic diagram of another power switching circuit provided by the invention.
Specific embodiment
Core of the invention is to provide a kind of power switching circuit and electronic equipment, with manual switching side in the prior art
Formula is compared, and the switch speed of the automatic switching mode of the application is very fast, not will lead to the phenomenon that equipment is restarted, to improve
The stability and duration performance of equipment.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, Fig. 1 is a kind of structural schematic diagram of power switching circuit provided by the invention.
The power switching circuit is applied to the electronic equipment comprising rechargeable battery, including for charging for rechargeable battery
Charging circuit 1, switching circuit 2 and counnter attack diode D；Wherein:
The output end of the external power supply of electronic equipment respectively with the input terminal of charging circuit 1, switching circuit 2 control terminal and
The anode of counnter attack diode D connects, the output end of charging circuit 1 respectively with the anode of rechargeable battery and switching circuit 2 the
One end connection, the cathode ground connection of rechargeable battery, the second end of switching circuit 2 cathode and equipment with counnter attack diode D respectively
The feeder ear of load connects；
Switching circuit 2 is used to itself disconnect when the output voltage of external power supply is greater than the demand voltage of apparatus of load, makes
Rechargeable battery is in idle state；Conversely, itself automatic conducting makes rechargeable battery apparatus of load power.
Specifically, the power supply of the electronic equipment of the application includes the rechargeable battery of external power supply and inside, outside
(output voltage of external power supply is greater than the demand voltage of apparatus of load, i.e. external power supply can in the case where portion's power supply normal power supply
Meet the power demands of apparatus of load), apparatus of load is directly powered by external power supply；It is (external when external power supply occurs abnormal
The output voltage of power cut-off or external power supply is lower, is unable to satisfy the power demands of apparatus of load), apparatus of load turns by interior
The rechargeable battery in portion is powered.Wherein, the demand voltage of apparatus of load is minimum voltage required for equipment, the power supply electricity of equipment
When the voltage in source is lower than this minimum voltage, equipment be can not work normally.
Based on this, the power switching circuit of the application includes charging circuit 1, switching circuit 2 and counnter attack diode D, work
Make principle are as follows: in the case where external power supply normal power supply, on the one hand, external power supply is chargeable by charging circuit 1 automatically
Battery charging, until it is full of；On the other hand, external power supply is directly apparatus of load (such as single-chip microcontroller, LED light etc.) power supply,
And the output voltage of external power supply is in an off state switching circuit 2 at this time, to disconnect rechargeable battery and apparatus of load
For electrical connection, so that rechargeable battery is in idle state.
When external power supply is from the time of normally switching to abnormal, the variation of the output voltage of external power supply makes switching circuit 2 certainly
It is dynamic to switch on state from off-state, thus quick-make rechargeable battery with apparatus of load for being electrically connected, make chargeable
Battery is apparatus of load power supply.In this case, since the application is in the output end of external power supply and the feeder ear of apparatus of load
A counnter attack diode D is connected, the reversed of electric current can be prevented, to protect external power supply.
Similarly, at the time of external power supply switchs to normal from exception, on the one hand, external power supply is automatic by charging circuit 1
For rechargeable battery charging；On the other hand, while external power supply continues as apparatus of load power supply, the output electricity of external power supply
The variation of pressure makes switching circuit 2 switch to off-state from state automatically, and rechargeable battery is made to be again at idle state.
As it can be seen that the application can use filling inside the voltage value control of external power supply due to the presence of switching circuit 2
Whether battery is apparatus of load power supply, to realize being switched fast for external power supply and internal electric source, and then be not in because
The case where switch speed causes equipment to be restarted slowly.It, can be after for single-chip microcontroller and other operational modules in apparatus of load
It is continuous to work normally, to effectively improve the stability and duration performance of equipment, while it is competing in the market to improve equipment
Strive power.Can be realized moreover, because the presence of switching circuit 2, between external power supply and the rechargeable battery of inside in power supply every
From to protect power supply.
Further, the size of external power supply output voltage is depending on the specific power demands of apparatus of load.It please refers to
Fig. 2, Fig. 2 are a kind of structural schematic diagram of external power supply provided by the invention.The acquisition process of the output voltage of external power supply are as follows:
It is first that the 220V alternating current of input is (electric by first capacitor C1 and second by transformer pressure-reducing, rectifier bridge rectification, chopper circuit
Hold C2 composition) after copped wave filtering, then through the pressure stabilizing of LM2596 chip, LC filter circuit (by energy storage inductor L and third capacitor C3 group
At) filtering, to provide a stable external dc power for equipment.
The present invention provides a kind of power switching circuits, applied to the electronic equipment comprising rechargeable battery, including are used for
For charging circuit, switching circuit and the counnter attack diode of rechargeable battery charging；Wherein: the output of the external power supply of electronic equipment
End connect respectively with the anode of the input terminal of charging circuit, the control terminal of switching circuit and counnter attack diode, charging circuit it is defeated
Outlet is connect with the first end of the anode of rechargeable battery and switching circuit respectively, the cathode ground connection of rechargeable battery, switch electricity
The second end on road is connect with the feeder ear of the cathode of counnter attack diode and apparatus of load respectively；Switching circuit is used in external power supply
Output voltage be greater than apparatus of load demand voltage when itself disconnect, so that rechargeable battery is in idle state；Conversely, itself
Automatic conducting makes rechargeable battery apparatus of load power.
The power switching circuit of the application is when the output voltage of external power supply is greater than the demand voltage of apparatus of load, by outer
Portion's power supply is apparatus of load power supply, and rechargeable battery is in idle state at this time；And the output voltage in external power supply is not more than
When the demand voltage of apparatus of load, rechargeable battery power supply is automatically switched to using switching circuit.With hand in the prior art
Dynamic switching mode is compared, and the switch speed of the automatic switching mode of the application is very fast, not will lead to the phenomenon that equipment is restarted,
To improve the stability and duration performance of equipment.
Referring to figure 3., Fig. 3 is the structural schematic diagram of another power switching circuit provided by the invention.The power switching
Circuit is on the basis of the above embodiments:
As a kind of preferred embodiment, switching circuit 2 includes regulating circuit and switching tube Q；Wherein:
Control terminal of the first end of regulating circuit as switching circuit 2, the second end of regulating circuit and the control of switching tube Q
End connection, the first end and second end of switching tube Q is to the first end and second end that should be used as switching circuit 2；
Regulating circuit is used to adjust the voltage for the control terminal that external power supply is exported to switching tube Q, makes the on-off shape of switching tube Q
State meets the power switching condition of electronic equipment.
Specifically, the switching circuit 2 of the application includes regulating circuit and switching tube Q, its working principle is that: in view of switch
The turn-on voltage of pipe Q is usually different from minimum voltage value required for equipment, so switching circuit 2 not only includes switching tube Q,
Further include regulating circuit, for the input voltage of the control terminal of regulating switch pipe Q, makes the turn-on voltage and equipment of switching tube Q
Required minimum voltage value reaches unanimously, to guarantee that the on off operating mode of switching tube Q meets the power switching item of electronic equipment
Part, i.e., at the time of minimum voltage needed for equipment being just not achieved in the output voltage of external power supply, switching tube Q transient switching, fastly
Speed switches to internal electric source power supply；At the time of minimum voltage needed for reaching equipment again in the output voltage of external power supply, open
Pass pipe Q moment ends, and internal electric source stops being that apparatus of load is powered, and is rapidly switched to external power supply power supply again, and then prevent
When external power supply is already below minimum voltage needed for equipment, switching tube Q is not turned on also, and internal electric source can not supply for equipment
The situation of electricity.
As a kind of preferred embodiment, switching tube Q is specially PMOS tube, control of the grid of PMOS tube as switching tube Q
End processed, first end of the source electrode of PMOS tube as switching tube Q, second end of the drain electrode of PMOS tube as switching tube Q.
Further, PMOS tube (low-voltage conducting field-effect tube) can be selected in the switching tube Q of the application, to realize external electrical
Source and internal electric source are switched fast.
As a kind of preferred embodiment, regulating circuit includes the first divider resistance R1 and the second divider resistance R2；Wherein:
First end of the first end of first divider resistance R1 as regulating circuit, the second end of the first divider resistance R1 and the
The first end of two divider resistance R2 connects, second end of the common end as regulating circuit, the second end of the second divider resistance R2
Ground connection.
Specifically, in order to make the turn-on voltage of PMOS tube reach consistent with minimum voltage value required for equipment, this Shen
Regulating circuit please includes the first divider resistance R1 and the second divider resistance R2, and it is consistent to reach the two using voltage divider principle.For example,
Minimum voltage required for equipment is 3.7V, the threshold voltage V of PMOS tubeG(its grid voltage is less than or equal to thresholding to=2.5V
It is connected when voltage).According to voltage division formulas:Obtain the output voltage V when external power supplyout=3.7V,
VGWhen=2.5V, the resistance value ratio of the first divider resistance R1 and the second divider resistance R2 are about 1/2, so only needing according to this ratio
The resistance value of corresponding selection the first divider resistance R1 and the second divider resistance R2.
As it can be seen that (referring to for different equipment (referring to the different equipment of required minimum voltage) and/or different PMOS tube
Be the different PMOS tube of threshold voltage), need to only change the resistance value ratio of the first divider resistance R1 and the second divider resistance R2, so that it may
It is consistent with minimum voltage value needed for equipment to reach PMOS tube turn-on voltage.Therefore, the power switching circuit of the application can
To adapt to different device products by the resistance value ratio for changing two resistance in regulating circuit, and power switching circuit is used
Component it is less, circuit cost is lower, thus have more significant market value and practical value.
As a kind of preferred embodiment, the first divider resistance R1 and the second divider resistance R2 are specially adjustable resistance.
Further, the first divider resistance R1 and the second divider resistance R2 of the application can select adjustable resistance, from
It also can change the resistance value ratio of two resistance without dismantling two resistance in regulating circuit.
As a kind of preferred embodiment, charging circuit 1 is specially TP4054 charging chip.
Specifically, the charging circuit 1 of the application can select TP4054 charging chip, it is ensured that rechargeable battery will not mistake
It fills, to improve the service life of rechargeable battery.In addition, the 5th pin of TP4054 chip meets pull down resistor R3, thus more effectively
Ground connection.
As a kind of preferred embodiment, the power switching circuit further include:
First end connect with the second end of switching circuit 2, the second end cathode and apparatus of load with counnter attack diode D respectively
Feeder ear connection toggle switch K, for accordingly controlling the selection situation of rechargeable battery using itself on off operating mode.
Further, the power switching circuit of the application further includes toggle switch K, if toggle switch K is disconnected, even if external
Minimum voltage needed for the output voltage of power supply is lower than equipment, internal electric source can not also power for apparatus of load；Conversely, if stirring
Switch K closure, internal electric source can normal use, i.e., when the output voltage of external power supply is lower than minimum voltage needed for equipment
Normally power for apparatus of load.As it can be seen that equipment user can choose whether to select internal electric source by this toggle switch K, thus
Meet the multiple requirements of equipment user.In addition, for the connection on ground, the ground of external power supply, the ground of internal electric source and entire
The ground of each module is directly altogether, to increase the stability of equipment in equipment.
The present invention also provides a kind of electronic equipment, including rechargeable battery and apparatus of load, further include any of the above-described kind
Power switching circuit.
The introduction of electronic equipment provided by the invention please refers to the embodiment of above-mentioned power switching circuit, and the application is herein not
It repeats again.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of power switching circuit, which is characterized in that applied to the electronic equipment comprising rechargeable battery, including be used for as institute
State charging circuit, switching circuit and the counnter attack diode of rechargeable battery charging；Wherein:
The control with the input terminal of the charging circuit, the switching circuit respectively of the output end of the external power supply of the electronic equipment
The connection of the anode of end processed and the counnter attack diode, the output end of the charging circuit anode with the rechargeable battery respectively
It is connected with the first end of the switching circuit, the cathode ground connection of the rechargeable battery, the second end difference of the switching circuit
It is connect with the feeder ear of the cathode of the counnter attack diode and apparatus of load；
The switching circuit be used for the external power supply output voltage be greater than the apparatus of load demand voltage when itself
It disconnects, the rechargeable battery is made to be in idle state；Conversely, itself automatic conducting makes the rechargeable battery equipment
Load supplying.
2. power switching circuit as described in claim 1, which is characterized in that the switching circuit includes regulating circuit and switch
Pipe；Wherein:
Control terminal of the first end of the regulating circuit as the switching circuit, the second end of the regulating circuit are opened with described
The control terminal connection of pipe is closed, the first end and second end of the switching tube are to the first end that should be used as the switching circuit and second
End；
The regulating circuit is used to adjust the voltage for the control terminal that the external power supply is exported to the switching tube, makes the switch
The on off operating mode of pipe meets the power switching condition of the electronic equipment.
3. power switching circuit as claimed in claim 2, which is characterized in that the switching tube is specially PMOS tube, described
Control terminal of the grid of PMOS tube as the switching tube, first end of the source electrode of the PMOS tube as the switching tube, institute
State second end of the drain electrode of PMOS tube as the switching tube.
4. power switching circuit as claimed in claim 3, which is characterized in that the regulating circuit include the first divider resistance and
Second divider resistance；Wherein:
First end of the first end of first divider resistance as the regulating circuit, the second end of first divider resistance
It is connect with the first end of second divider resistance, second end of the common end as the regulating circuit, second partial pressure
The second end of resistance is grounded.
5. power switching circuit as claimed in claim 4, which is characterized in that first divider resistance and second partial pressure
Resistance is specially adjustable resistance.
6. power switching circuit as claimed in claim 4, which is characterized in that the charging circuit is specially TP4054 charging core
Piece.
7. power switching circuit as claimed in any one of claims 1 to 6, which is characterized in that the power switching circuit further include:
First end connect with the second end of the switching circuit, second end respectively with the cathode of the counnter attack diode and described set
The toggle switch of the feeder ear connection of standby load, for accordingly controlling the selection of the rechargeable battery using itself on off operating mode
Situation.
8. a kind of electronic equipment, which is characterized in that further include that claim 1-7 such as appoints including rechargeable battery and apparatus of load
Power switching circuit described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119630.5A CN109038804A (en) | 2018-09-25 | 2018-09-25 | A kind of power switching circuit and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119630.5A CN109038804A (en) | 2018-09-25 | 2018-09-25 | A kind of power switching circuit and electronic equipment |
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| Publication Number | Publication Date |
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| CN109038804A true CN109038804A (en) | 2018-12-18 |
Family
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| CN201811119630.5A Pending CN109038804A (en) | 2018-09-25 | 2018-09-25 | A kind of power switching circuit and electronic equipment |
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| CN110212636A (en) * | 2018-12-28 | 2019-09-06 | 深圳传音通讯有限公司 | Apparatus for adjusting power supply, intelligent terminal and power supply method of adjustment |
| CN113472048A (en) * | 2021-07-30 | 2021-10-01 | 阳光电源股份有限公司 | Startup and shutdown control system and switching power supply system |
| CN115395638A (en) * | 2022-08-31 | 2022-11-25 | 广东智云工程科技有限公司 | Novel high-formwork gateway hybrid power supply system and method |
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| CN113472048A (en) * | 2021-07-30 | 2021-10-01 | 阳光电源股份有限公司 | Startup and shutdown control system and switching power supply system |
| CN113472048B (en) * | 2021-07-30 | 2024-05-14 | 阳光电源股份有限公司 | On-off control system and switching power supply system |
| CN115395638A (en) * | 2022-08-31 | 2022-11-25 | 广东智云工程科技有限公司 | Novel high-formwork gateway hybrid power supply system and method |
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Application publication date: 20181218 |