CN107947302A - A kind of power circuit of Portable oil filter - Google Patents
A kind of power circuit of Portable oil filter Download PDFInfo
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- CN107947302A CN107947302A CN201711496136.6A CN201711496136A CN107947302A CN 107947302 A CN107947302 A CN 107947302A CN 201711496136 A CN201711496136 A CN 201711496136A CN 107947302 A CN107947302 A CN 107947302A
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 44
- 230000033228 biological regulation Effects 0.000 claims abstract description 8
- 230000003321 amplification Effects 0.000 claims abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 4
- 239000004065 semiconductor Substances 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 10
- 239000003381 stabilizer Substances 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000003760 hair shine Effects 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
A kind of power circuit of Portable oil filter, including：Rechargeable battery：For storing electric energy, there is provided power supply；Regulator circuit：By the carry out voltage stabilizing adjusting and processing of power supply, voltage of voltage regulation is exported；Drive circuit：Voltage of voltage regulation is subjected to two end signal amplifications, improves load capacity；Battery low-voltage protection circuit：Switch control voltage is prompted and exported for low pressure；Voltage stabilizing on-off control circuit：The break-make control of switch control voltage control regulator circuit is received, output maintains signal；Battery low-voltage protection circuit control circuit：Charged battery voltage is detected, Rreceive output maintains the break-make of signal control battery low-voltage protection circuit.This programme realizes the low-voltage variation to rechargeable battery, improves the driving force of circuit.
Description
Technical field
The present invention relates to oil filter field, and in particular to a kind of power circuit of Portable oil filter.
Background technology
Oil filter is to remove mechanical admixture in impure absolute oil, oxidation pair with technical methods such as gravity, centrifugation, pressure, mass transfers
The filtration apparatus of product and moisture.Oil filter is mainly used for improving the cleannes of machinery and oil for electrical appliances, it is played optimality
The service life of equipment and can be extended.
Oil filter, also known as oil filter, oil conditioner.Its effect is that contaminated oil product is filtered, is purified, recover or
Improve the attribute of oil product in itself.Cleannes, water content, air content, acid number, viscosity, flash-point, dielectric strength, face including oil product
Color etc., furthermore it can effectively remove the impurity in oil product and ensure oil-using units safe operation.
Present oil filter develops towards miniaturization, individually customized direction, and rechargeable oil filter is the end of development
In it is weight.How to improve the driving force of the pump in oil filter and drive circuit is protected, be our urgent problems.
The content of the invention
For the deficiency in the presence of the prior art, the present invention provides a kind of power circuit of Portable oil filter, solution
Determined pump drive circuit load it is small and the problem of protected to charge power supply.To achieve the above object, present invention employs as follows
Technical solution：A kind of power circuit of Portable oil filter, including：
Rechargeable battery：For storing electric energy, there is provided power supply；
Regulator circuit：By the carry out voltage stabilizing adjusting and processing of power supply, voltage of voltage regulation is exported；
Drive circuit：Voltage of voltage regulation is subjected to two end signal amplifications, improves load capacity；
Battery low-voltage protection circuit：Switch control voltage is prompted and exported for low pressure；
Voltage stabilizing on-off control circuit：The break-make control of switch control voltage control regulator circuit is received, output maintains signal；
Battery low-voltage protection circuit control circuit：Charged battery voltage is detected, Rreceive output maintains signal control battery low
The break-make of voltage protection circuit.
Further, battery low-voltage protection circuit includes metal-oxide-semiconductor Q8, and the D levels of metal-oxide-semiconductor Q8 are connected with resistance R7；Metal-oxide-semiconductor Q8
S levels series connection Light-emitting diode LED 1 after connect rechargeable battery negative end IN-.
Further, battery low-voltage protection circuit control circuit includes, transistor Q7 and zener diode D1, two pole of voltage stabilizing
Pipe D1 both ends are parallel with filter capacitor C1 successively, and the forward end of divider resistance R15, zener diode D1 are also associated with resistance R14
With divider resistance R19, the collector of the other end connection transistor Q7 of resistance R14, the ground level of transistor Q7 is connected with partial pressure electricity
Hinder R18 and divider resistance R16.
Further, voltage stabilizing on-off control circuit includes photoelectric switch U1, the positive input of photoelectric switch U1
End 1 is connected with resistance R8, and the cathode output end 3 of photoelectric switch U1 passes through resistance R11 connection photoelectric switch U1 negative senses
Input terminal 2, the cathode output end 4 of photoelectric switch U1 are connected with resistance R9, the other end of resistance R9 be connected with resistance R10 and
The anode of voltage-stabiliser tube D2, voltage-stabiliser tube D2 are connected with resistance R17, the other end connection capacitance C2 of resistance R17, the other end of capacitance C2
Connect photoelectric switch U1 negative inputs 2；Resistance R11 both ends shunt capacitance C3 is as voltage stabilizing on-off control circuit
Output terminal.
Further, regulator circuit includes voltage stabilizing chip U2, voltage stabilizing chip U2 selection LM317, the input of voltage stabilizing chip U2
2 feet are held to be connected with capacitance C4, the other end ground connection of capacitance C4,1 foot of control terminal of voltage stabilizing chip U2 is connected with resistance R12, current potential
3 foot of output terminal of the other end connection voltage stabilizing chip U2 of R13, diode D3 and capacitance C5, resistance R12 are counted, potentiometer R13's is another
One end and control terminal ground connection, the other end ground connection of capacitance C5, the output terminal 3 of the cathode connection voltage stabilizing chip U2 of diode D3
Foot, 3 foot of output terminal of voltage stabilizing chip U2 are also associated with capacitance C6, capacitance C6 other ends ground connection；The both ends of capacitance C4 are as voltage stabilizing
The input terminal of circuit, the output terminal of the both ends of capacitance C6 as regulator circuit.
Further, drive circuit includes bi-directional voltage stabilizing diode P5, transistor Q1, transistor Q2, transistor Q3, crystal
Pipe Q4, transistor Q5 and transistor Q6, transistor Q3 and the emitter of transistor Q4 connect power supply VCC, the current collection of transistor Q3
Pole is connected with 1 foot of output terminal P3 and the collector of transistor Q6, between the ground level of transistor Q3 and the collector of transistor Q1
It is in series with resistance R5；The ground level of transistor Q1 is connected with one end of resistance R1 and one end of resistance R2, the connection of the resistance R1 other ends
The other end ground connection of input terminal P1, resistance R2, the ground level of the emitter connection transistor Q5 of transistor Q1；The transmitting of transistor Q5
Pole is grounded, the collector of the collector connection transistor Q4 of transistor Q5, the ground level of transistor Q4 and the collector of transistor Q2
Between be in series with resistance R6；The ground level of the emitter connection transistor Q6 of transistor Q2, the emitter ground connection of transistor Q6, crystal
Pipe Q2 ground levels are connected with one end of resistance R3 and one end of resistance R4, and the other end of resistance R3 connects input terminal P2, resistance R4's
The other end is grounded；The collector of transistor Q4 is connected with 2 feet of output terminal P3；The collector of transistor Q3 and the collection of transistor Q6
The first branch is drawn between electrode, draws the second branch between the collector of transistor Q4 and the collector of transistor Q5, first
Connect bi-directional voltage stabilizing diode P5 between branch and the second branch；Output terminal P3 connection oil pumps.
The anode connection zener diode D1 anode of battery, the cathode pole of Light-emitting diode LED 1, transistor Q7 emitters,
Resistance R16 and photoelectric switch U1 negative inputs 2；Cathode connection resistance R7, resistance R19, resistance R18 and the resistance of battery
R10。
Operation principle is：IN+ is battery forward end, and IN- is battery negative end；When battery capacity is insufficient, divider resistance
R19 and resistance R15 produces the bias voltage of metal-oxide-semiconductor Q8, metal-oxide-semiconductor Q8 conductings, and the sampled voltage of resistance R8 is opened less than Phototube Coupling
The conducting voltage of U1 is closed, the cut-off of photoelectric switch U1 output terminals, drives voltage to rise, partial pressure electricity when battery capacity continues increase
The bias voltage that resistance R18 and resistance R16 is produced meets transistor Q7 turn-on conditions, and transistor Q7 conductings, force metal-oxide-semiconductor Q8 bigoted
Voltage reduces, metal-oxide-semiconductor Q8 cut-offs, and the voltage rise of resistance R8 samplings, photoelectric switch U1 conductings, the electric energy of battery is exported
To inversion unit；Meanwhile the bias voltage drawn between resistance R10 and resistance R9 can keep transistor Q7 to continue to turn on, metal-oxide-semiconductor
Q8 continues to keep cut-off, and photoelectric switch U1 continues to turn on.When battery capacity reduces, less than resistance R10 and resistance R9 it
Between the bias voltage drawn be less than voltage-stabiliser tube D2 conducting voltages, the conducting of transistor Q7 depends on resistance R18 and resistance R16 parameters
Bias voltage.
Capacitance C3 and C4 have played oscillation-damped, are conducive to improve Ripple Suppression ability, resistance R12 and R13 composition
The resistor network of adjustable output；Capacitance C6 ensures that circuit stability works.
Compared with the prior art, the present invention has the advantages that：This programme realizes the low pressure guarantor to rechargeable battery
Shield, improves the driving force of circuit.
The application is simple in structure, realizes switch U1 when electric quantity of rechargeable battery is insufficient, partial pressure deficiency, is turned off, shut out
Rechargeable battery low pressure operation absolutely, protects rechargeable battery；During more than setting voltage, the purpose of switch U1 conductings, prevents battery
It is frequently on or off during not enough power supply and simple in structure.
The voltage acquisition point of the break-make control of metal-oxide-semiconductor Q8 by the nearly battery-ends of resistance R19 and the nearly load end phases of resistance R9 or
Relation determine, improve the operational reliability of whole circuit.
Brief description of the drawings
Fig. 1 is circuit block diagram of the present invention；
Fig. 2 is present invention driver circuit schematic diagram；
Fig. 3 is regulator circuit, battery low-voltage protection circuit, voltage stabilizing on-off control circuit and battery low-voltage protection circuit control
Circuit schematic diagram.
Embodiment
Embodiment 1
The present invention is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of power circuit of Portable oil filter of the present invention, including：
Rechargeable battery：For storing electric energy, there is provided power supply；
Regulator circuit：By the carry out voltage stabilizing adjusting and processing of power supply, voltage of voltage regulation is exported；
Drive circuit：Voltage of voltage regulation is subjected to two end signal amplifications, improves load capacity；
Battery low-voltage protection circuit：Switch control voltage is prompted and exported for low pressure；
Voltage stabilizing on-off control circuit：The break-make control of switch control voltage control regulator circuit is received, output maintains signal；
Battery low-voltage protection circuit control circuit：Charged battery voltage is detected, Rreceive output maintains signal control battery low
The break-make of voltage protection circuit.
Embodiment 1
On the basis of embodiment 1, there is provided how to realize.
The present invention is described further below in conjunction with the accompanying drawings.As Figure 2-3, battery low-voltage protection circuit includes
The D levels of metal-oxide-semiconductor Q8, metal-oxide-semiconductor Q8 are connected with resistance R7；Rechargeable battery is connected after the S levels series connection Light-emitting diode LED 1 of metal-oxide-semiconductor Q8
Negative end IN-.
Battery low-voltage protection circuit control circuit includes, transistor Q7 and zener diode D1, zener diode D1 both ends
Filter capacitor C1 is parallel with successively, and the forward end of divider resistance R15, zener diode D1 are also associated with resistance R14 and partial pressure electricity
R19, the collector of the other end connection transistor Q7 of resistance R14 are hindered, the ground level of transistor Q7 is connected with divider resistance R18 and divides
Piezoresistance R16.
Voltage stabilizing on-off control circuit includes photoelectric switch U1, and the positive input 1 of photoelectric switch U1 is connected with
The cathode output end 3 of resistance R8, photoelectric switch U1 pass through resistance R11 connection photoelectric switch U1 negative inputs 2, light
The cathode output end 4 for being electrically isolated switch U1 is connected with resistance R9, and the other end of resistance R9 is connected with resistance R10 and voltage-stabiliser tube D2,
The anode of voltage-stabiliser tube D2 is connected with resistance R17, the other end connection photoelectricity of the other end connection capacitance C2, capacitance C2 of resistance R17
Disconnecting switch U1 negative inputs 2；Output terminals of the resistance R11 both ends shunt capacitance C3 as voltage stabilizing on-off control circuit.
Regulator circuit includes voltage stabilizing chip U2,2 foot of the input terminal connection of voltage stabilizing chip U2 selections LM317, voltage stabilizing chip U2
There are capacitance C4, the other end ground connection of capacitance C4,1 foot of control terminal of voltage stabilizing chip U2 is connected with resistance R12, potentiometer R13, two poles
3 foot of output terminal of the other end connection voltage stabilizing chip U2 of pipe D3 and capacitance C5, resistance R12, the other end of potentiometer R13 and control
End ground connection processed, the other end ground connection of capacitance C5,3 foot of output terminal of the cathode connection voltage stabilizing chip U2 of diode D3, voltage stabilizing chip
3 foot of output terminal of U2 is also associated with capacitance C6, capacitance C6 other ends ground connection；Input of the both ends of capacitance C4 as regulator circuit
End, the output terminal of the both ends of capacitance C6 as regulator circuit.
Drive circuit includes bi-directional voltage stabilizing diode P5, transistor Q1, transistor Q2, transistor Q3, transistor Q4, crystal
Pipe Q5 and transistor Q6, transistor Q3 connect power supply VCC with the emitter of transistor Q4, and the collector of transistor Q3 is connected with defeated
1 foot of outlet P3 and the collector of transistor Q6, resistance is in series between the ground level of transistor Q3 and the collector of transistor Q1
R5；The ground level of transistor Q1 is connected with one end of resistance R1 and one end of resistance R2, resistance R1 other ends connection input terminal P1, electricity
Hinder the other end ground connection of R2, the ground level of the emitter connection transistor Q5 of transistor Q1；The emitter ground connection of transistor Q5, crystal
The collector of the collector connection transistor Q4 of pipe Q5, electricity is in series between the ground level of transistor Q4 and the collector of transistor Q2
Hinder R6；The ground level of the emitter connection transistor Q6 of transistor Q2, the emitter ground connection of transistor Q6, the connection of transistor Q2 ground levels
There are one end of resistance R3 and one end of resistance R4, the other end ground connection of the other end connection input terminal P2, resistance R4 of resistance R3；It is brilliant
The collector of body pipe Q4 is connected with 2 feet of output terminal P3；Drawn between the collector of transistor Q3 and the collector of transistor Q6
The first branch, draws the second branch between the collector of transistor Q4 and the collector of transistor Q5, the first branch and second
Connect bi-directional voltage stabilizing diode P5 between road；Output terminal P3 connection oil pumps.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, can be to the skill of the present invention
Art scheme technical scheme is modified or replaced equivalently, without departing from the objective and scope of technical solution of the present invention, it should all cover at this
Among the right of invention.
Claims (6)
- A kind of 1. power circuit of Portable oil filter, it is characterised in that including：Rechargeable battery：For storing electric energy, there is provided power supply；Regulator circuit：By the carry out voltage stabilizing adjusting and processing of power supply, voltage of voltage regulation is exported；Drive circuit：Voltage of voltage regulation is subjected to two end signal amplifications, improves load capacity；Battery low-voltage protection circuit：Switch control voltage is prompted and exported for low pressure；Voltage stabilizing on-off control circuit：The break-make control of switch control voltage control regulator circuit is received, output maintains signal；Battery low-voltage protection circuit control circuit：Charged battery voltage is detected, Rreceive output maintains signal control battery low pressure to protect The break-make of protection circuit.
- A kind of 2. power circuit of Portable oil filter as claimed in claim 1, it is characterised in thatBattery low-voltage protection circuit includes metal-oxide-semiconductor Q8, and the D levels of metal-oxide-semiconductor Q8 are connected with resistance R7；The S levels series connection of metal-oxide-semiconductor Q8 shines Rechargeable battery negative end IN- is connected after diode (LED) 1.
- A kind of 3. power circuit of Portable oil filter as claimed in claim 1, it is characterised in that battery low-voltage protection circuit control Circuit processed includes, transistor Q7 and zener diode D1, and zener diode D1 both ends are parallel with filter capacitor C1, partial pressure electricity successively R15 is hindered, the forward end of zener diode D1 is also associated with resistance R14 and divider resistance R19, and the other end connection of resistance R14 is brilliant The collector of body pipe Q7, the ground level of transistor Q7 are connected with divider resistance R18 and divider resistance R16.
- A kind of 4. power circuit of Portable oil filter as claimed in claim 1, it is characterised in that voltage stabilizing on-off control circuit bag Photoelectric switch U1 is included, the positive input 1 of photoelectric switch U1 is connected with resistance R8, the anode of photoelectric switch U1 By resistance R11 connection photoelectric switch U1 negative inputs 2, the cathode output end 4 of photoelectric switch U1 connects output terminal 3 Resistance R9 is connected to, the other end of resistance R9 is connected with resistance R10 and voltage-stabiliser tube D2, and the anode of voltage-stabiliser tube D2 is connected with resistance R17, The other end connection photoelectric switch U1 negative inputs 2 of the other end connection capacitance C2, capacitance C2 of resistance R17；Resistance electricity Hinder output terminals of the R11 both ends shunt capacitance C3 as voltage stabilizing on-off control circuit.
- 5. a kind of power circuit of Portable oil filter as claimed in claim 1, it is characterised in that regulator circuit includes voltage stabilizing core Piece U2, voltage stabilizing chip U2 select LM317, and 2 foot of input terminal of voltage stabilizing chip U2 is connected with capacitance C4, another termination of capacitance C4 Ground, 1 foot of control terminal of voltage stabilizing chip U2 are connected with resistance R12, potentiometer R13, diode D3 and capacitance C5, and resistance R12's is another 3 foot of output terminal of one end connection voltage stabilizing chip U2, the other end and the control terminal ground connection of potentiometer R13, the other end of capacitance C5 Ground connection, 3 foot of output terminal of the cathode connection voltage stabilizing chip U2 of diode D3,3 foot of output terminal of voltage stabilizing chip U2 are also associated with electricity Hold C6, capacitance C6 other ends ground connection；Input terminal of the both ends of capacitance C4 as regulator circuit, the both ends of capacitance C6 are as voltage stabilizing electricity The output terminal on road.
- 6. a kind of power circuit of Portable oil filter as claimed in claim 1, it is characterised in that drive circuit includes two-way steady Press diode P5, transistor Q1, transistor Q2, transistor Q3, transistor Q4, transistor Q5 and transistor Q6, transistor Q3 and The emitter connection power supply VCC of transistor Q4, the collector of transistor Q3 are connected with 1 foot of output terminal P3 and the collection of transistor Q6 Electrode, resistance R5 is in series between the ground level of transistor Q3 and the collector of transistor Q1；The ground level of transistor Q1 is connected with electricity Hinder one end of R1 and one end of resistance R2, the other end ground connection of the connection of the resistance R1 other ends input terminal P1, resistance R2, transistor Q1 Emitter connection transistor Q5 ground level；The emitter ground connection of transistor Q5, the collector connection transistor Q4 of transistor Q5 Collector, be in series with resistance R6 between the ground level of transistor Q4 and the collector of transistor Q2；The emitter of transistor Q2 connects The ground level of transistor Q6, the emitter ground connection of transistor Q6 are connect, transistor Q2 ground levels are connected with one end and the resistance R4 of resistance R3 One end, resistance R3 the other end connection input terminal P2, resistance R4 the other end ground connection；The collector of transistor Q4 is connected with defeated 2 feet of outlet P3；The first branch, the current collection of transistor Q4 are drawn between the collector of transistor Q3 and the collector of transistor Q6 The second branch is drawn between the collector of pole and transistor Q5, bi-directional voltage stabilizing diode of connecting between the first branch and the second branch P5；Output terminal P3 connection oil pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711496136.6A CN107947302A (en) | 2017-12-31 | 2017-12-31 | A kind of power circuit of Portable oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711496136.6A CN107947302A (en) | 2017-12-31 | 2017-12-31 | A kind of power circuit of Portable oil filter |
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| Publication Number | Publication Date |
|---|---|
| CN107947302A true CN107947302A (en) | 2018-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711496136.6A Pending CN107947302A (en) | 2017-12-31 | 2017-12-31 | A kind of power circuit of Portable oil filter |
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| CN (1) | CN107947302A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601535U (en) * | 2009-11-23 | 2010-10-06 | 南昌百特生物高新技术股份有限公司 | Lithium-battery power supply circuit of blood analyzer |
| CN204334358U (en) * | 2015-01-19 | 2015-05-13 | 成都联宇创新科技有限公司 | A kind of interface power supply circuit being applicable to computer |
| CN204651921U (en) * | 2015-06-02 | 2015-09-16 | 深圳市蓝德汽车电源技术有限公司 | A kind of electric automobile exports reverse-connection preventing circuit |
| CN106253650A (en) * | 2016-07-31 | 2016-12-21 | 成都知人善用信息技术有限公司 | The drive circuit of motor in agricultural irrigation systems |
| CN106374573A (en) * | 2016-10-17 | 2017-02-01 | 苏州佳世达电通有限公司 | Overvoltage protection circuit and power supply circuit |
| CN206442174U (en) * | 2017-05-24 | 2017-08-25 | 无锡十一新能源投资有限公司 | A kind of artificial tree solar power system circuit |
| CN206533118U (en) * | 2017-03-17 | 2017-09-29 | 重庆四联光电科技有限公司 | Low pressure cut-off protection circuit |
-
2017
- 2017-12-31 CN CN201711496136.6A patent/CN107947302A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601535U (en) * | 2009-11-23 | 2010-10-06 | 南昌百特生物高新技术股份有限公司 | Lithium-battery power supply circuit of blood analyzer |
| CN204334358U (en) * | 2015-01-19 | 2015-05-13 | 成都联宇创新科技有限公司 | A kind of interface power supply circuit being applicable to computer |
| CN204651921U (en) * | 2015-06-02 | 2015-09-16 | 深圳市蓝德汽车电源技术有限公司 | A kind of electric automobile exports reverse-connection preventing circuit |
| CN106253650A (en) * | 2016-07-31 | 2016-12-21 | 成都知人善用信息技术有限公司 | The drive circuit of motor in agricultural irrigation systems |
| CN106374573A (en) * | 2016-10-17 | 2017-02-01 | 苏州佳世达电通有限公司 | Overvoltage protection circuit and power supply circuit |
| CN206533118U (en) * | 2017-03-17 | 2017-09-29 | 重庆四联光电科技有限公司 | Low pressure cut-off protection circuit |
| CN206442174U (en) * | 2017-05-24 | 2017-08-25 | 无锡十一新能源投资有限公司 | A kind of artificial tree solar power system circuit |
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Application publication date: 20180420 |