CN208452307U - 3D printer power supply system and 3D printer - Google Patents
3D printer power supply system and 3D printer Download PDFInfo
- Publication number
- CN208452307U CN208452307U CN201820733462.8U CN201820733462U CN208452307U CN 208452307 U CN208452307 U CN 208452307U CN 201820733462 U CN201820733462 U CN 201820733462U CN 208452307 U CN208452307 U CN 208452307U
- Authority
- CN
- China
- Prior art keywords
- printer
- unit
- power supply
- supply system
- boosting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
It includes: energy-storage units, isolating diode, pressure unit and boosting unit that the utility model, which provides a kind of 3D printer power supply system and 3D printer, above-mentioned 3D printer power supply system,.Energy-storage units are separately connected the output end of pressure unit and the input terminal of boosting unit；The input terminal of pressure unit is for connecting external direct current power supply；The cathode of the output end connection isolating diode of boosting unit, and the main control unit of the electric-motor drive unit and 3D printer for being separately connected 3D printer；The input terminal of the anode connection pressure unit of isolating diode, and the heating unit for connecting 3D printer.The demand to energy-storage units electricity is reduced by pressure unit and boosting unit, and the heating unit of 3D printer is isolated by isolating diode, the heating unit for the 3D printer for keeping energy-storage units no longer very big to power consumption is powered, to keep requirement of the 3D printer power supply system to the capacitance of energy-storage units lower.
Description
Technical field
The utility model relates to equipment for electrical domain, more particularly to 3D printer power supply system and 3D printer.
Background technique
3D printer is a kind of according to digital model file, stacks bonding manufacture three-dimensional article in layer with jointing material
The equipment of body.A complete article is printed with 3D printer, is generally required for a long time.If breaking during printing
Electricity can then be such that print data loses, and printing is caused to fail, and waste material.
Current 3D printer power supply system, external power supply power-off after, by switching energy-storage units come to 3D printer into
Row power-off protection makes 3D printer do controlling cashier power-cut-off contiuous printing preparation, restores electricity to external power supply and is further continued for printing.But it is existing
Have and the capacitances of energy-storage units is required in technology very high, increases the cost of equipment.
Utility model content
Based on this, it is necessary to require very in existing 3D printer backup technology the capacitance of energy-storage units
High problem provides a kind of 3D printer power supply system and 3D printer.
On the one hand, the utility model embodiment provides a kind of 3D printer power supply system, including: energy-storage units, every
From diode, pressure unit and boosting unit；
Energy-storage units are separately connected the output end of pressure unit and the input terminal of boosting unit；The input terminal of pressure unit is used
In connection external direct current power supply；The cathode of the output end connection isolating diode of boosting unit, and for being separately connected 3D printing
The electric-motor drive unit of machine and the main control unit of 3D printer；The input terminal of the anode connection pressure unit of isolating diode,
And the heating unit for connecting 3D printer.
Energy-storage units include super capacitor in one of the embodiments,；
The anode of super capacitor is separately connected the output end of pressure unit and the input terminal of boosting unit, and super capacitor is born
Pole ground connection.
Pressure unit includes lowering and stabilizing blood pressure DC-DC conversion circuit in one of the embodiments,.
Boosting unit includes boosting pressure stabilizing DC-DC conversion circuit in one of the embodiments,.
Lowering and stabilizing blood pressure DC-DC conversion circuit includes MC34063 chip in one of the embodiments,.
Boosting pressure stabilizing DC-DC conversion circuit includes LM3478 chip in one of the embodiments,.
It in one of the embodiments, further include outage detection unit；
The feeder ear of outage detection unit is separately connected the cathode of isolating diode and the output end of boosting unit, power-off inspection
The detection input of unit is surveyed for connecting external direct current power supply, the detection output of outage detection unit is for connecting 3D printing
The main control unit of machine.
Outage detection unit includes: divider resistance and voltage comparator in one of the embodiments,；
One end of the non-inverting input terminal connection divider resistance of voltage comparator；The other end of divider resistance is external for connecting
DC power supply；The inverting input terminal of voltage comparator connects reference voltage, and the output end of voltage comparator is for connecting 3D printing
The main control unit of machine, the feeder ear of voltage comparator are separately connected the cathode of isolating diode and the output end of boosting unit.
Voltage comparator is LM393 type voltage comparator in one of the embodiments,.
On the other hand, the utility model embodiment also provides a kind of 3D printer, comprising: heating unit, motor driven list
Member, main control unit, further include above-mentioned 3D printer power supply system.
3D printer power supply system provided in this embodiment keeps external direct current power supply logical when external direct current power supply is normal
Pressure unit is crossed as energy-storage units charging；When energy-storage units power supply, with boosting unit by the output voltage liter of energy-storage units
Height, and by the heating unit of isolating diode isolation 3D printer, the 3D printer for keeping energy-storage units no longer very big to power consumption
Heating unit power supply, and the main control unit of the electric-motor drive unit of only 3D printer and 3D printer power, to make
Requirement of the 3D printer power supply system to the capacitance of energy-storage units is lower.
Detailed description of the invention
Fig. 1 is the 3D printer power supply system structural schematic diagram of an embodiment；
Fig. 2 is the 3D printer power supply system structural schematic diagram of another embodiment；
Fig. 3 is the 3D printer power supply system structural schematic diagram of another embodiment；
Fig. 4 is the 3D printer power supply system structural schematic diagram of another embodiment；
Fig. 5 is the 3D printer power supply system structural schematic diagram of another embodiment；
Fig. 6 is the structural schematic diagram of the 3D printer of an embodiment.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
It is more thorough and comprehensive to open content.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
The utility model embodiment provides a kind of 3D printer power supply system, as shown in Figure 1, including: pressure unit
110, energy-storage units 120, boosting unit 130 and isolating diode 140.
Energy-storage units 120 are separately connected the output end of pressure unit 110 and the input terminal of boosting unit 130；Pressure unit
110 input terminal is for connecting external direct current power supply；The cathode of the output end connection isolating diode 140 of boosting unit 130, and
For being separately connected the electric-motor drive unit of 3D printer and the main control unit of 3D printer；The anode of isolating diode 140
Connect the input terminal of pressure unit 110, and heating unit, external direct current power supply for being separately connected 3D printer.
Wherein, the output voltage of boosting unit 130 is lower than the voltage of external direct current power supply and can make the master of 3D printer
The electric-motor drive unit of control unit and 3D printer works normally.When the end voltage of the output end of boosting unit 130 is higher than it
Output voltage when, boosting unit 130 does not work.
Specifically, external direct current power supply is directly the heating unit power supply of 3D printer when external direct current power supply is opened；
External direct current power supply charges after being depressured by pressure unit 110 for energy-storage units 120；Due to the output voltage of boosting unit 130
Lower than the voltage of external direct current power supply, the end voltage of 140 anode of isolating diode is greater than the end voltage of cathode, and two poles are isolated at this time
Pipe 140 is connected, and the output end end voltage of boosting unit 130 is greater than its output voltage later, and boosting unit 130 no longer works,
To which external direct current power supply passes through the motor driven list of main control unit and 3D printer that isolating diode 140 is 3D printer
Member power supply.
When external direct current power supply power-off, boosting unit 130 is worked normally, and the output voltage of energy-storage units 120 is increased,
Energy-storage units 120 are the main control unit power supply of the electric-motor drive unit and 3D printer of 3D printer；Isolating diode 140 is just
The end voltage of pole is zero, and the end voltage of 140 cathode of isolating diode is the output voltage of boosting unit 130, isolating diode 140
The end voltage of cathode is greater than the end voltage of anode, and isolating diode 140 ends, the heating unit of 3D printer is isolated.
3D printer power supply system provided in this embodiment, on the one hand, when external direct current power supply is normal, make external direct current
Power supply is the charging of energy-storage units 120 by pressure unit 110；When energy-storage units 120 are powered, then will with boosting unit 130
The output voltage of energy-storage units 120, which increases, to power for equipment, is reduced by setting boosting unit 130 and pressure unit 110
Requirement of the power supply system to the deposit electricity of energy-storage units 120.On the other hand, pass through isolation two when energy-storage units 120 are powered
The heating unit of 3D printer is isolated in pole pipe 140, makes heating unit of the energy-storage units 120 no longer to the maximum 3D printer of power consumption
Power supply, and the main control unit of the electric-motor drive unit of only 3D printer and 3D printer is powered, and also 3D printer is made to power
Requirement of the system to the capacitance of energy-storage units 120 is lower.
In one of the embodiments, as shown in Fig. 2, energy-storage units 120 include super capacitor.The anode of super capacitor point
Not Lian Jie the output end of pressure unit 110 and the input terminal of boosting unit 130, super capacitor cathode ground connection.Super capacitor is several
Loss is not led to the problem of because of the increase of charge and discharge number, it is long using the time, and do not have to need replacing after considering
The problem of.Energy-storage units 120 use a voltage rating for 2.7V in one of the embodiments, and capacitor is the super of 100F
Capacitor.
In one of the embodiments, as shown in figure 3, energy-storage units 120 include the first super capacitor and the second super electricity
Hold, the first super capacitor is connected with the second super capacitor, and the anode of the first super capacitor is separately connected the output of pressure unit 110
The input terminal at end and boosting unit 130, the cathode of the first super capacitor connect the anode of the second super capacitor；Second super capacitor
Cathode ground connection.
It is 2.7V, capacitor that the first super capacitor and the second super capacitor, which are voltage rating, in one of the embodiments,
For the super capacitor of 50F.
In one of the embodiments, as shown in figure 3, pressure unit 110 includes lowering and stabilizing blood pressure DC-DC conversion circuit 111.
Specifically, lowering and stabilizing blood pressure DC-DC conversion circuit 111 exports voltage of voltage regulation, voltage of voltage regulation is stablized than energy-storage units
The slightly smaller voltage value of 120 voltage rating in this way can play a protective role to energy-storage units 120.For example, energy-storage units 120
The super capacitor for being 2.7V for voltage rating, the voltage of voltage regulation that lowering and stabilizing blood pressure DC-DC conversion circuit 111 exports can be set as
2.6V；Alternatively, energy-storage units 120 are the super capacitor that concatenated two voltage ratings are 2.7V, lowering and stabilizing blood pressure DC-DC transformation electricity
The voltage of voltage regulation that road 111 exports can be set as 5.2V.
In one of the embodiments, as shown in figure 5, pressure unit 110 includes lowering and stabilizing blood pressure current limliting DC-DC conversion circuit
112.The voltage of voltage regulation of the output of lowering and stabilizing blood pressure current limliting DC-DC conversion circuit 112 determines voltage when super capacitor is full of；Drop
The cut-off current i.e. electric current of its output for pressing pressure stabilizing current limliting DC-DC conversion circuit 112, determines the charging current of super capacitor.
In one of the embodiments, as shown in figure 3, boosting unit 130 includes boosting pressure stabilizing DC-DC conversion circuit 131.
Specifically, the output voltage of boosting pressure stabilizing DC-DC conversion circuit 131 is a stationary value, stablize more straight than external
In some value between small 0.5V to the 1V of the supply voltage in galvanic electricity source, when can guarantee external direct current power supply normal power supply in this way,
Isolating diode 140 can be connected, and the motor of the main control unit and 3D printer that make external direct current power supply 3D printer drives
Moving cell power supply.For example, the steady of boosting pressure stabilizing DC-DC conversion circuit 131 can be set when external direct current power supply voltage is 12V
Determining output voltage is 11V.Moreover, energy-storage units 120 are by boosting pressure stabilizing DC-DC conversion circuit when external direct current power supply powers off
It is the electric-motor drive unit power supply of the main control unit and 3D printer of 3D printer, the voltage of energy-storage units 120 can after 131
To discharge into very low voltage value always, the electric energy stored by it can be fully utilized.
Boosting pressure stabilizing DC-DC conversion circuit 131 includes DC-DC chip and conventional peripheral electricity in one of the embodiments,
Road, when extraneous DC power supply normal power supply, isolating diode 140 is connected, and boost 131 output end of pressure stabilizing DC-DC conversion circuit
End voltage be equal to external direct current power supply voltage, boosting 131 output end of pressure stabilizing DC-DC conversion circuit end voltage be greater than its export
Voltage of voltage regulation, at this moment the error amplifying circuit meeting on-off switching tube of DC-DC chip interior, makes pressure stabilizing DC-DC conversion circuit of boosting
131 stop working.
Lowering and stabilizing blood pressure DC-DC conversion circuit includes MC34063 chip in one of the embodiments,.Specifically, decompression is steady
Pressing DC-DC conversion circuit 111 includes MC34063 chip and some conventional peripheral circuits.
Boosting pressure stabilizing DC-DC conversion circuit includes LM3478 chip in one of the embodiments,.Specifically, boosting is steady
Pressing DC-DC conversion circuit 131 includes LM3478 chip and some conventional peripheral circuits.
In one of the embodiments, as shown in figure 3,3D printer power supply system further includes outage detection unit 150, break
The feeder ear of electro-detection unit 150 is separately connected the cathode of isolating diode 140 and the output end of boosting unit 130, power-off inspection
The detection input of unit 150 is surveyed for connecting external direct current power supply, the detection output of outage detection unit 150 is for connecting
The main control unit of 3D printer.
Specifically, external direct current power supply is examined by isolating diode 140 to power-off in external direct current power supply normal power supply
It surveys unit 150 to power, in external direct current power supply power-off, energy-storage units 120 pass through boosting unit 130 to outage detection unit
150 power supplies.Whether outage detection unit 150 is normal for detecting external direct current power supply power supply, and will power supply testing result transmission
For the main control unit of 3D printer.
Outage detection unit 150 remains power supply before and after external direct current power supply power-off, it is ensured that external direct current power supply is disconnected
Power supply testing result can be persistently provided for the main control unit of 3D printer after electricity, enable the main control unit of 3D printer
The preparation of controlling cashier power-cut-off contiuous printing is carried out according to the electric-motor drive unit of power supply testing result control 3D printer, such as by print head
It is stored in nonvolatile storage from being removed in printed matter and printing point of interruption coordinate.
In one of the embodiments, as shown in figure 4, outage detection unit 150 includes: divider resistance 151 and voltage ratio
Compared with device 152.
One end of the non-inverting input terminal connection divider resistance 151 of voltage comparator 152；The other end of divider resistance 151 is used
In connection external direct current power supply；The inverting input terminal of voltage comparator 152 connects reference voltage, the output of voltage comparator 152
The main control unit for connecting 3D printer is held, the feeder ear of voltage comparator 152 is separately connected the negative of isolating diode 140
The output end of pole and boosting unit 130.
The voltage comparator 152 that outage detection unit 150 includes in one of the embodiments, is LM393 type voltage ratio
Compared with device.
In one of the embodiments, as shown in figure 5,3D printer power supply system includes: that lowering and stabilizing blood pressure current limliting DC-DC becomes
Change circuit 112, super capacitor, boosting pressure stabilizing DC-DC conversion circuit 131, isolating diode and outage detection unit 150.Outside
The voltage for connecing DC power supply is 12V, and the voltage rating of super capacitor is 2.7V, capacitor 100F, and lowering and stabilizing blood pressure current limliting DC-DC becomes
The pressure stabilizing value for changing circuit 112 is 2.6V, and cut-off current can be any value between 0.5A to 1A, boosting pressure stabilizing DC-DC transformation
The pressure stabilizing value of circuit 131 is 11V.
When external direct current power supply is normal, lowering and stabilizing blood pressure current limliting DC-DC conversion circuit 112 is by the electric signal of external direct current power supply
It is transformed to, voltage value is pressure stabilizing value and current value is the electric signal of cut-off current, is charged for super capacitor.The pressure stabilizing DC-DC that boosts becomes
The output voltage of voltage regulation for changing circuit 131 is 11V, smaller than external direct current power supply voltage, therefore isolating diode is connected, and boosts later
The output end end voltage of pressure stabilizing DC-DC conversion circuit 131 is external direct current power supply voltage 12V, greater than its output voltage of voltage regulation
11V, therefore pressure stabilizing DC-DC conversion circuit 131 of boosting stops working, external direct current power supply is 3D printer by isolating diode
Main control unit, 3D printer electric-motor drive unit and outage detection unit 150 power.Outage detection unit 150 continues
Detect external direct current power supply supply voltage, and transmit testing result to 3D printer main control unit.
When external direct current power supply powers off, lowering and stabilizing blood pressure current limliting DC-DC conversion circuit 112 without input electrical signal because stop
It only works, super capacitor is 3D printer by the electric signal that the boosting boosting of pressure stabilizing DC-DC conversion circuit 131 is that voltage is 11V
Main control unit, 3D printer electric-motor drive unit and outage detection unit power supply 150.At this point, isolating diode is just
Extremely end without voltage, cathode voltage 11V, therefore isolating diode, the heating unit isolation of 3D printer is not supplied for it
Electricity.Outage detection unit 150 persistently detects the supply voltage of external direct current power supply, and transmit testing result to 3D printer master
Control unit.It should be noted that the electric-motor drive unit and outage detection list of the main control unit of 3D printer, 3D printer
Member 150 can still work normally under the power supply of 11V voltage.
The utility model also provides a kind of 3D printer, as shown in Figure 6, comprising: heating unit 200, electric-motor drive unit
300, main control unit 400 and above-mentioned 3D printer power supply system 100.
Wherein, main control unit 400 is separately connected heating unit 200 and electric-motor drive unit 300, single for controlling heating
Member 200 heats printing head and print platform, and controls printing head movement and discharging by electric-motor drive unit 300, completes
3D printing task.Heating unit 200 is the circuit for being responsible for heating in 3D printer, including but not limited to printing nozzle heater circuit
With print platform heater circuit.
Above embodiments only express the several embodiments of the utility model, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of 3D printer power supply system characterized by comprising energy-storage units, isolating diode, pressure unit and liter
Press unit；
The energy-storage units are separately connected the output end of the pressure unit and the input terminal of the boosting unit；The decompression is single
The input terminal of member is for connecting external direct current power supply；The output end of the boosting unit connects the cathode of the isolating diode,
And the main control unit of the electric-motor drive unit and 3D printer for being separately connected 3D printer；The isolating diode is just
Pole connects the input terminal of the pressure unit, and the heating unit for connecting 3D printer.
2. 3D printer power supply system according to claim 1, which is characterized in that the energy-storage units include super electricity
Hold；
The anode of the super capacitor is separately connected the output end of the pressure unit and the input terminal of boosting unit, described super
The cathode of capacitor is grounded.
3. 3D printer power supply system according to claim 1 or 2, which is characterized in that the pressure unit includes decompression
Pressure stabilizing DC-DC conversion circuit.
4. 3D printer power supply system according to claim 3, which is characterized in that the boosting unit includes boosting pressure stabilizing
DC-DC conversion circuit.
5. 3D printer power supply system according to claim 4, which is characterized in that the lowering and stabilizing blood pressure DC-DC transformation electricity
Road includes MC34063 chip.
6. 3D printer power supply system according to claim 5, which is characterized in that the boosting pressure stabilizing DC-DC transformation electricity
Road includes LM3478 chip.
7. 3D printer power supply system according to claim 1, which is characterized in that further include outage detection unit；
The feeder ear of the outage detection unit is separately connected the output of the cathode and the boosting unit of the isolating diode
End, the detection input of the outage detection unit is for connecting the external direct current power supply, the inspection of the outage detection unit
Survey the main control unit that output end is used to connect the 3D printer.
8. 3D printer power supply system according to claim 7, which is characterized in that the outage detection unit includes: point
Piezoresistance and voltage comparator；
The non-inverting input terminal of the voltage comparator connects one end of the divider resistance；The other end of the divider resistance is used for
Connect the external direct current power supply；The inverting input terminal of the voltage comparator connects reference voltage, the voltage comparator
Output end is used to connect the main control unit of the 3D printer, and the feeder ear of the voltage comparator is separately connected the isolation
The output end of the cathode of diode and the boosting unit.
9. 3D printer power supply system according to claim 8, which is characterized in that the voltage comparator is LM393 type
Voltage comparator.
10. a kind of 3D printer, comprising: heating unit, electric-motor drive unit, main control unit, which is characterized in that further include as
3D printer power supply system described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820733462.8U CN208452307U (en) | 2018-05-16 | 2018-05-16 | 3D printer power supply system and 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820733462.8U CN208452307U (en) | 2018-05-16 | 2018-05-16 | 3D printer power supply system and 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208452307U true CN208452307U (en) | 2019-02-01 |
Family
ID=65151264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820733462.8U Active CN208452307U (en) | 2018-05-16 | 2018-05-16 | 3D printer power supply system and 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208452307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783999A (en) * | 2019-12-10 | 2020-02-11 | 深圳硅山技术有限公司 | Circuit for controlling constant current input through charging gun CP signal |
-
2018
- 2018-05-16 CN CN201820733462.8U patent/CN208452307U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783999A (en) * | 2019-12-10 | 2020-02-11 | 深圳硅山技术有限公司 | Circuit for controlling constant current input through charging gun CP signal |
| CN110783999B (en) * | 2019-12-10 | 2024-05-17 | 深圳硅山技术有限公司 | Circuit for controlling constant electric input through charge gun CP signal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107144796B (en) | Feedback type storage battery pack nuclear capacity discharging device and application method | |
| CN112165156B (en) | Charging/discharging device, battery system, charging/discharging control method, and storage medium | |
| CN208452307U (en) | 3D printer power supply system and 3D printer | |
| CN113561847A (en) | Lithium battery system and working method | |
| CN204243812U (en) | The quick charge device of mobile device battery | |
| CN110429702A (en) | Power output apparatus and power supply output method | |
| CN103151812B (en) | Wireless charging mobile power supply | |
| CN104518526A (en) | Power bank with wireless charging function | |
| CN101749835A (en) | Air conditioning controller with auxiliary control chip by utilizing solar battery and air-conditioning system thereof | |
| CN202134955U (en) | Power supply circuit for remote meter reading terminal | |
| CN104842895B (en) | Power transfer device and method, car-mounted terminal and vehicle | |
| CN109324222A (en) | Quick detection of power loss system and method based on reverse exciting topological | |
| CN108418275A (en) | A kind of energy storage device | |
| CN102231573B (en) | Energy supply power source suitable for small current online power acquisition | |
| CN106033242A (en) | An external power supply unit and a system connection detecting unit for the same | |
| CN101719687A (en) | Uninterrupted direct current (DC) power supply system | |
| CN113991824A (en) | Novel charging and discharging lithium battery UPS power supply with same port for machine room and power-on and power-off method thereof | |
| CN211032213U (en) | Direct current fills electric pile low-power consumption control system | |
| CN203800631U (en) | Smart battery switching module for power supply charger | |
| CN206685917U (en) | A kind of unmanned plane Multifunctional battery management system | |
| CN203406639U (en) | Solar-energy assisted power supply apparatus | |
| CN207819476U (en) | A kind of string fills and the pond application circuit that discharges | |
| CN101470503A (en) | CMOS chip power supply | |
| CN206727189U (en) | A kind of battery auto-activation device | |
| CN110138074A (en) | A kind of power supply circuit for electronic equipment and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |