CN201252422Y - Super-capacitor direct current power supply device - Google Patents
Super-capacitor direct current power supply device Download PDFInfo
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- CN201252422Y CN201252422Y CNU2008201464751U CN200820146475U CN201252422Y CN 201252422 Y CN201252422 Y CN 201252422Y CN U2008201464751 U CNU2008201464751 U CN U2008201464751U CN 200820146475 U CN200820146475 U CN 200820146475U CN 201252422 Y CN201252422 Y CN 201252422Y
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Abstract
The utility model discloses a super-capacitor direct current power supply device, which comprises a or a plurality of super-capacitors which are connected in parallel, a booster processing circuit which increases the output voltage of the super-capacitor utile to the preset voltage value, and a control commutation circuit which is used for detecting the output voltage of the super-capacitor, can control and communicate a first channel to output voltage when the output voltage of the super-capacitor is smaller than the preset threshold value, or control and communicate a second channel, and output the output voltage of the super-capacitor after the voltage-increase process by the booster processing circuit through the second channel, wherein the control communication circuit is connected with the super-capacitors and the booster processing circuit. The super-capacitor direct current power supply device can be widely applied in various portable electronic apparatuses, and provides a free-pollution highly-effective power supply for the portable electronic apparatuses, and has the advantages of long service life, fast charging speed and free environment pollution. When the super-capacitor direct current power supply device is applied in mobile phones and the like, a charging circuit and a charger are both generally used, thereby avoiding resource waste.
Description
Technical field
The utility model relates to the DC power supply technology, especially relates to a kind of improvement continuous-current plant that utilizes ultracapacitor to realize.
Background technology
Continuous development along with electronic technology and manufacturing technology, the profile and the volume of electronic installation are more and more littler, and by adopting rechargeable battery that power supply is provided, make electronic installation possess portable function, enlarged the environment for use of electronic installation thus, and more convenient user uses.Therefore, entered into huge numbers of families, become one of people's daily life requirement such as electronic installations such as mobile phone, PDA.
With the mobile phone is example, mobile phone also is to adopt battery that power supply is provided, but in the development and Design of mobile phone and actual the use, aspect battery, there are a lot of restrictions or unfavorable factor, mainly show as: first, the useful life of battery is shorter relatively, and the acomia substantially instructions for use that reaches mobile phone of the battery of common production; The second, the battery charge time is longer, does not meet the actual needs of the more and more faster rhythm of life of people; The 3rd, more and more waste batteries bring challenge extremely greatly to environmental protection; The 4th, because the special life requirements of dissimilar batteries, make the specification requirement of battery charge higher, therefore every money mobile phone all is furnished with oneself charging circuit and charger, and the charging circuit of the mobile phone of different model and brand and charger can't be general, caused sizable wasting of resources like this.
In view of above many unfavorable factors, be necessary to propose a kind of efficient, environmental protection and realize lower-cost solution at the power supply of portable electronic equipments such as mobile phone.
The utility model content
The purpose of this utility model is to propose a kind of ultracapacitor continuous-current plant, especially be suitably for portable electronic equipment such as mobile phone DC power supply be provided, with solve present rechargeable battery have useful life short and can't be general etc. the technical problem of many defectives.
For solving technical problem of the present utility model, the utility model discloses a kind of ultracapacitor continuous-current plant, and it comprises: one or more ultracapacitors that are connected in parallel; Being used for output voltage with ultracapacitor boosts and handles the treatment circuit that boosts to setting voltage value; Be used to detect the output voltage of ultracapacitor, when the output voltage of ultracapacitor is not less than preset threshold, control is communicated with first passage and output voltage, handle the control commutation circuit of back otherwise control is communicated with second channel and the output voltage of ultracapacitor is boosted through the treatment circuit that boosts from second channel output, its connection ultracapacitor with boost treatment circuit.
More excellent, ultracapacitor continuous-current plant of the present utility model also comprises: be used to utilize the charging circuit of the DC power supply of input for the ultracapacitor charging, its output connects ultracapacitor; Wherein, described charging circuit comprises: be serially connected in the DC power supply of input and two resistors between the ground; Anti-phase with resistor and connect voltage-stabiliser tube; Base stage connects the common port of two resistors, and emitter connects ultracapacitor, and collector electrode connects the transistor of the DC power supply of input, and ground connection after this transistorized emitter serial connection capacitor.
More excellent, the described treatment circuit that boosts comprises: the DC-DC transducer, it enables control end and connects ultracapacitor by resistor, input connects ultracapacitor, end is set connects ultracapacitor by inductor, and end is set also is connected, and the output connection is used to regulate ground connection behind two series resistor devices of output voltage by the voltage that booster diode and preset threshold equate; Feedback end is connected the common port of two series resistor devices.
More excellent, described control commutation circuit comprises: first passage; When the output voltage that second channel and being used to detects ultracapacitor is not less than preset threshold, the control of output output high level is communicated with first passage, otherwise the control of output output low level is communicated with the voltage detector of second channel, its test side connects ultracapacitor, and output connects first passage and second channel.
Compared with prior art, the utlity model has following beneficial effect:
The utility model can generally be applicable in the various portable electronic equipments, for portable electronic equipment provides free of contamination efficient power.Therefore, the utlity model has that long service life, charging rate are fast, the advantage of non-environmental-pollution; And when the utility model was applied to portable electronic equipments such as mobile phone, charging circuit and charger all can be general, avoided the wasting of resources.
Description of drawings
Fig. 1 is the circuit diagram of a preferred embodiment of the utility model.
Embodiment
Be sake of clarity, earlier ultracapacitor done simple introduction:
Ultracapacitor is a kind of passive device of just producing in batches in recent years, the super large capacitor amount that the farad level is arranged, big electric current fast charging and discharging characteristic with electric capacity, the energy storage characteristic that battery is also arranged simultaneously, and it is long to reuse the life-span, utilize electronics (and not relying on chemical reaction) release current between mobile conductor during discharge, thereby provide power supply for equipment.
Ultracapacitor has following characteristic: a, volume is little, and capacity is big, and capacitance is than big 30～40 times with volume electrochemical capacitor capacity; B, charging rate are fast, reach 95% of rated capacity in 10 seconds; C, charging and discharging capabilities are strong; D, the open circuit that lost efficacy, overvoltage does not puncture, and is safe and reliable; E, extra long life were more than 400,000 hours; F, to discharge and recharge circuit simple, need not the such charging circuit of rechargeable battery, really non-maintaining; H, range of capacity: 0.1F--1000F.
Therefore, ultracapacitor is compared with battery, has following advantage: a, ultralow series equivalent resistance, and power density (PowerDensity) is more than tens of times of lithium ion battery, is fit to heavy-current discharge; Ultracapacitor has extra long life, discharges and recharges greater than 500,000 times, is 500 times of Li-Ion battery, is Ni-MH and Ni-Cd battery 1000 times, if ultracapacitor is discharged and recharged 20 times every day, use can reach 68 years continuously; C, ultracapacitor can use large current charge, and the time that discharges and recharges is short, charging circuit is required simply, and memory-less effect; D, ultracapacitor are salable, have non-maintaining advantage; The operating temperature range of e, ultracapacitor is wide to be-40 ℃～+ 70 ℃, and the operating temperature range wide of general battery is-20 ℃～60 ℃.
Referring to shown in Figure 1.Continuous-current plant of the present utility model comprises: ultracapacitor 110, charging circuit 120, boost treatment circuit 130 and control commutation circuit 140.Wherein, ultracapacitor 110 requires to select one or more parallel connections for use according to the energy storage electric weight, adopts 2 ultracapacitor C1 and C2 that are in parallel as present embodiment.
Wherein, described charging circuit 120 comprises: be serially connected in two resistor R 6 and R7 between the DC power supply of input and the ground; Anti-phase with resistor R 7 and connect voltage-stabiliser tube D1; Base stage connects the common port of two resistor R 6 and R7, and emitter connects ultracapacitor 110, and collector electrode connects the transistor Q6 of the DC power supply of input, and ground connection after the emitter of this transistor Q6 serial connection capacitor C4.
, on resistor R 7, reach certain threshold values and make transistor Q6 conducting through resistor R 6 and R7 dividing potential drop by the DC power supply of outside input, reached purpose like this ultracapacitor 110 chargings; In addition, the voltage on the capacitor C4 is the voltage drop 0.7v of the forward conduction of voltage-stabiliser tube D1, and is suitable when voltage-stabiliser tube D1 selection, promptly reached the purpose of restriction maximum charging voltage.The electric current of supposing to flow through R6 is I
R6, then have:
I
R6=(voltage of the DC power supply voltage-voltage-stabiliser tube D1 of input)/R6
In the formula, the resistance of the DC power supply voltage of input, the voltage of voltage-stabiliser tube D1, resistor R 6 is definite value, therefore, and I
R6Be constant, and resistor R 7 and voltage-stabiliser tube D1 are dead load.Like this, the base current (I of transistor Q6
R6-I
D1-I
R7) be less than I
R6A constant, thereby the emitter current of transistor Q6 also is a constant, so reaches the purpose of constant current pressure limiting charging.And when voltage reached certain value on the ultracapacitor 110, the base stage of transistor Q6 and the pressure reduction between the emitter was during less than the threshold values of its conducting, and transistor Q6 can automatic cut-off, thereby realizes the purpose of charging automatically.
Because as long as the characteristic of ultracapacitor is compared maximum charging voltage less than its withstand voltage with battery, therefore,, can not cause ultracapacitor to damage even give the charging current of ultracapacitor excessive yet.So ultracapacitor is lower to the requirement of charging.
The described treatment circuit 130 that boosts comprises: the employing model is the DC-DC transducer 101 that the real-time boost DC-DC conversion chip of LTC3400 (the minimum 0.6V of can be of its input voltage) is realized, it enables control end EN and connects ultracapacitor 110 by resistor R 1, input VIN connects ultracapacitor 110, end SW is set connects ultracapacitor 110 by inductor L1, and end SW is set also is connected, and output VOUT connection is used to regulate ground connection behind two series resistor device R2 of output voltage and the R3 by the booster diode D4 voltage equal with preset threshold (threshold value is 3.5V in the present embodiment); Be connected the output VOUT of DC-DC transducer 101 and the filtering capacitor C3 between the ground; Its feedback end FB is connected the common port of two series resistor device R2 and R3.
In addition, described control commutation circuit 140 comprises: first passage; When the output voltage that second channel and being used to detects ultracapacitor 110 is not less than preset threshold, the control of output output high level is communicated with first passage, otherwise the control of output output low level is communicated with the voltage detector 102 of second channel, it is the chip realization of BL8506 that this voltage detector 102 adopts model, its test side (being input IN) connects ultracapacitor 110, and output OUT connects first passage and second channel.Wherein, first passage comprises: two transistor Q3 of drain electrode butt joint and Q4, and the source electrode of transistor Q3 connects ultracapacitor 110; Grid connects the output of voltage detector 102, source ground, and drain electrode connects the transistor Q5 of the grid of two transistor Q3 and Q4 simultaneously.Second channel comprises: drain electrode butt joint and grid are connected to two the transistor Q1 and the Q2 of the output of voltage detector 102 simultaneously; And be connected resistor R 4 between the source electrode of transistor Q1 and the grid, the source electrode of transistor Q1 is connected to the output of the treatment circuit 130 that boosts, and the source electrode of Q2 connects source electrode and the supply voltage output (VCC) of Q4.
Described transistor Q1, Q2, Q3 and Q4 are the PMOS transistor, and transistor Q5 is a nmos pass transistor.
When the last voltage of ultracapacitor C1, C2 is not less than 3.5V, be that the input IN of voltage detector 102 is when detecting input voltage greater than 3.5V, the output OUT output high level of voltage detector 102, transistor Q1, Q2 are ended, and make transistor Q5 conducting, thereby make transistor Q3, Q4 conducting, so ultracapacitor C1, C2 are the mobile phone power supply by the transistor Q3 in the first passage, Q4 direct voltage output.At this moment, the control end EN that enables of DC-DC transducer 101 is a low level, so DC-DC transducer 101 is not worked.
When the last voltage of ultracapacitor C1, C2 during less than 3.5V, be that the input IN of voltage detector 102 is when detecting input voltage less than 3.5V, the output OUT output low level of voltage detector 102, make transistor Q1, Q2 conducting, and transistor Q5 is ended, thereby transistor Q3, Q4 are ended, the output voltage of ultracapacitor C1, C2 boosts by the treatment circuit 130 that boosts and handles to 3.5V, by transistor Q1, Q2 in second channel output, thereby be the mobile phone power supply.At this moment, the control end EN that enables of DC-DC transducer 101 is a high level, and the work of treatment so DC-DC transducer 101 boosts is normally exported 0.6V with ultracapacitor and arrived 3.5V voltage to the boost in voltage in the middle of the 3.5V.
As for the calculating of ultracapacitor energy storage electric weight, capacity is that the ultracapacitor of 1F is 1 storehouse/volt when being full of electricity, if voltage is charged to 5V, just stores the electric charge in 5 storehouses so on this electric capacity.And the electric current of 1A just equaled for 1 storehouse/second, here the definition of electric current 1A is 1 coulomb/second, as the ampere-hour (AH) that is converted into battery then is 1A x (1/3600 hour), or 1000mA x (1/3600 hour)=0.278 MAH, be for the 1F/5V super capacitor: 5 x, 0.278 MAH=1.39 MAHs.Can calculate the capacity of required super capacitor to the counterplot that requires of battery according to mobile phone like this, as for the 750mAH battery, the 5V super capacitor needs capacity be: 750mAH/1.39 MAH=539.6F, can select 1, and also can select two or more parallel connections.
To sum up, the utility model can generally be applicable in the various portable electronic equipments, for portable electronic equipment provides pollution-free Efficient power. Therefore, the utlity model has that long service life, charging rate are fast, the advantage of non-environmental-pollution; And this When utility model was applied to the portable electronic equipments such as mobile phone, charging circuit and charger all can be general, avoided the wasting of resources.
Claims (10)
1, a kind of ultracapacitor continuous-current plant is characterized in that, comprising:
One or more ultracapacitors that are connected in parallel (110);
Being used for output voltage with ultracapacitor (110) boosts and handles the treatment circuit that boosts (130) to setting voltage value;
Be used to detect the output voltage of ultracapacitor (110), when the output voltage of ultracapacitor (110) is not less than preset threshold, control is communicated with first passage and output voltage, handle the control commutation circuit (140) that export from second channel the back, its connection ultracapacitor (110) and the treatment circuit that boosts (130) otherwise control is communicated with second channel and the output voltage of ultracapacitor (110) is boosted through the treatment circuit that boosts (130).
2, ultracapacitor continuous-current plant as claimed in claim 1 is characterized in that, also comprises: be used to utilize the charging circuit (120) of the DC power supply of input for the ultracapacitor charging, its output connects ultracapacitor (110);
Described charging circuit (120) comprising:
Be serially connected in the DC power supply of input and two resistors (R6, R7) between the ground;
Anti-phase with resistor (R7) and connect voltage-stabiliser tube (D1);
Base stage connects the common port of two resistors (R6, R7), and emitter connects ultracapacitor (110), and collector electrode connects the transistor (Q6) of the DC power supply of input, and the emitter serial connection capacitor (C4) of this transistor (Q6) is ground connection afterwards.
3, ultracapacitor continuous-current plant as claimed in claim 1, it is characterized in that, the described treatment circuit that boosts (130) comprising: DC-DC transducer (101), it enables control end and connects ultracapacitor (110) by resistor (R1), input connects ultracapacitor (110), end is set connects ultracapacitor (110) by inductor (L1), and end is set also to be connected with the voltage that preset threshold equates by booster diode (D4), and output connects two the series resistor devices (R2 that is used to regulate output voltage, R3) back ground connection, feedback end is connected two series resistor device (R2, R3) common port.
4, ultracapacitor continuous-current plant as claimed in claim 3 is characterized in that, the described treatment circuit that boosts (130) also comprises: the output and the filtering capacitor between the ground (C3) that are connected DC-DC transducer (101).
5, ultracapacitor continuous-current plant as claimed in claim 1 is characterized in that, described control commutation circuit (140) comprising: first passage; When the output voltage that second channel and being used to detects ultracapacitor (110) is not less than preset threshold, the control of output output high level is communicated with first passage, otherwise the control of output output low level is communicated with the voltage detector (102) of second channel, its test side connects ultracapacitor (110), and output connects first passage and second channel.
6, ultracapacitor continuous-current plant as claimed in claim 5 is characterized in that, described first passage comprises:
Two transistors (Q3, Q4) of drain electrode butt joint, and the source electrode of transistor (Q3) connects ultracapacitor (110);
Grid connects the output of voltage detector (102), source ground, and drain electrode connects the transistor (Q5) of the grid of two transistors (Q3, Q4) simultaneously.
7, ultracapacitor continuous-current plant as claimed in claim 6 is characterized in that, described transistor (Q3, Q4) is the PMOS transistor, and transistor (Q5) is a nmos pass transistor.
8, ultracapacitor continuous-current plant as claimed in claim 5 is characterized in that, described second channel comprises: drain electrode butt joint and grid are connected to two transistors (Q1, Q2) of the output of voltage detector (102) simultaneously; Wherein, be connected resistor (R4) between the source electrode of transistor (Q1) and the grid, and the source electrode of transistor (Q1) is connected to the output of the treatment circuit that boosts (130), and the source electrode of transistor (Q2) connects the source electrode and the supply voltage output (VCC) of transistor (Q4) in the first passage.
9, ultracapacitor continuous-current plant as claimed in claim 8 is characterized in that, described transistor (Q1, Q2) is the PMOS transistor.
10, as any described ultracapacitor continuous-current plant of claim 1 to 9, it is characterized in that described preset threshold is 3.5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201464751U CN201252422Y (en) | 2008-08-15 | 2008-08-15 | Super-capacitor direct current power supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201464751U CN201252422Y (en) | 2008-08-15 | 2008-08-15 | Super-capacitor direct current power supply device |
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| CN201252422Y true CN201252422Y (en) | 2009-06-03 |
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| CNU2008201464751U Expired - Fee Related CN201252422Y (en) | 2008-08-15 | 2008-08-15 | Super-capacitor direct current power supply device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036284A (en) * | 2012-12-07 | 2013-04-10 | 陕西千山航空电子有限责任公司 | Aviation onboard recorder independent power supply |
-
2008
- 2008-08-15 CN CNU2008201464751U patent/CN201252422Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036284A (en) * | 2012-12-07 | 2013-04-10 | 陕西千山航空电子有限责任公司 | Aviation onboard recorder independent power supply |
| CN103036284B (en) * | 2012-12-07 | 2016-01-13 | 陕西千山航空电子有限责任公司 | A kind of aviation onboard recorder independent current source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20150815 |
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| EXPY | Termination of patent right or utility model |