CN100392969C - Boost installation - Google Patents
Boost installation Download PDFInfo
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- CN100392969C CN100392969C CNB2004100399395A CN200410039939A CN100392969C CN 100392969 C CN100392969 C CN 100392969C CN B2004100399395 A CNB2004100399395 A CN B2004100399395A CN 200410039939 A CN200410039939 A CN 200410039939A CN 100392969 C CN100392969 C CN 100392969C
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- 238000009434 installation Methods 0.000 title description 2
- 230000010355 oscillation Effects 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 9
- 230000000737 periodic effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 8
- 238000004146 energy storage Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The present invention relates to a booster device which comprises a booster circuit and a feedback control circuit, wherein the booster circuit is used for making input voltage regulated to predetermined output voltage; the feedback control circuit detects the output voltage of the booster circuit. When the output voltage is greater than or equal to a certain predetermined value, the booster circuit automatically stops continuing to boost. Therefore, the present invention can avoid superfluous energy consumption of a battery so as to improve conversion efficiency.
Description
Technical field
The invention provides a kind of increasing apparatus, refer to a kind of increasing apparatus of fuel cell especially.
Background technology
The energy is being played the part of very important role in the middle of the mankind's life, and today that science and technology is maked rapid progress, no matter be big and small various products such as electronic apparatus, all needs different energy supply equipment.The quality of power system has directly influenced the quality of electronic system, and the stable power supply makes electronic equipment equipment to operate under more stable environment, and smaller noise performance is arranged relatively.Otherwise if power supply supply is unstable, circuit itself has beyond thought malfunction to produce easily, severe patient even can cause the damage of circuit itself.Therefore, the consumer is healed high today to the quality requirements of hyundai electronics commodity, and good power system is the problem of significant research and development.
Fuel cell is the clean energy of a kind of environmental protection, though the energy that provides that it can be stable is exported, but can only supply the power supply of the operating voltage that is lower than general electronic products.Moreover, along with fuel cell external different electronic equipments, therefore the pressure drop of fuel cell output also can change thereupon, in order to overcome and to address this problem, need outside fuel cell, add a change-over circuit, the output voltage of script fuel cell is increased into predetermined required voltage, provide the power supply output of constant power, high stability, in the practicality that is applied to various electronic products.
Please refer to Fig. 1.Fig. 1 is the previous outer schematic diagram that is added on the increasing apparatus 10 of battery 12.Increasing apparatus 10 comprises a booster circuit 11, a battery 12 and a feedback oscillation controller 14.Booster circuit 11 is connected on the battery 12, is used for the voltage of battery 12 is raise into a predeterminated voltage.And feedback oscillation controller 14 detects the size of output voltage in the booster circuit 11, and being used as is feedback signal, to change the work period of controller output oscillation signal, controls booster circuit 11.
The principle of feedback oscillation controller 14 is to utilize the oscillation signal of a pulse wave frequency band modulation to control booster circuit 11.When the output voltage that is increased at booster circuit 11 does not reach a predetermined value, the long oscillation signal of feedback oscillation controller 14 meeting output duty cycles, allowing boosts can faster finish, if the output voltage of booster circuit 11 has increased into this predetermined value, the oscillation signal that 14 output duty cycles of feedback oscillation controller are short allows the process of boosting slow down.
Yet when previous increasing apparatus reached predetermined value at output voltage, feedback oscillation controller 14 was still constantly exported oscillation signal, but in fact in the case, booster circuit 11 does not need oscillation signal, because the mechanism of boosting can be suspended.Feedback oscillation controller 14 is still constantly exported oscillation signal when the output voltage of increasing apparatus reaches predetermined value, can cause following several shortcomings: one, produce in the time need not boosting and unnecessary can decrease Mao; Two, because of the inner De Xiao of increasing apparatus Mao power, it is lower to make that battery offers the power transfer of extraneous load.Therefore, need a kind of increasing apparatus, when the output voltage of increasing apparatus arrives predetermined value, the function that stops to charge, the problem of solution prior art.
Summary of the invention
The present invention has disclosed a kind of increasing apparatus, and it comprises: a booster circuit is used for an input voltage is increased to a predetermined output voltage; One oscillator is used for producing when this booster circuit required oscillation signal when increasing this input voltage; One voltage detector is electrically connected mutually with this booster circuit, is used for output voltage when this booster circuit during more than or equal to a certain predetermined value, and output logic is 0 signal, and when the output voltage of this booster circuit was lower than this predetermined value, output logic was 1 signal; One with door, should with two inputs of door wherein an end link to each other with this oscillator, the other end links to each other with this voltage detector, output connects this booster circuit.。
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the schematic diagram of previous increasing apparatus.
Fig. 2 is the schematic diagram of increasing apparatus of the present invention.
Fig. 3 is the schematic diagram of feedback control circuit of the present invention.
Fig. 4 is the schematic diagram of first embodiment of feedback control circuit of the present invention.
Embodiment
Please refer to Fig. 2.Fig. 2 is the schematic diagram of increasing apparatus 20 of the present invention.Increasing apparatus 20 comprises a booster circuit 11, a battery 12 and a feedback control circuit 24.Booster circuit 11 comprises two diode D1, D2, an inductance L 1, one capacitor C 1 and a MOS (metal-oxide-semiconductor) transistor Q1.The described booster circuit of booster circuit 11 among Fig. 2 and Fig. 1 11 is roughly the same.Utilize energy-storage travelling wave tubes such as inductance L 1 and capacitor C 1 that the energy of battery 12 is transferred on the capacitor C 1, make voltage Va constantly to boost in the process of capacitor C 1 charging.Because inductance need be supplied with an alternating current signal, the charging and discharging process of carrying out that just can continue, therefore, transistor Q1 is subjected to the control of feedback control circuit 24, in the time need boosting, do the action of switch with a certain frequency to capacitor C 1, and shutdown switch action when voltage Va reaches predetermined value.
The operation principle of booster circuit 11 is as follows: booster circuit 11 utilizes capacitor C 1 to come store electrical energy, therefore can charge to capacitor C 1 by the electric current of battery 12, and the voltage of raising node Va.Suppose that the voltage that battery 12 provides is 2V, the voltage of this 2V can reach node Va via diode D1 at the beginning, and the voltage that makes node Va is near 2V.Come again, consider that transistor Q1 is in the situation of conducting, at this moment, battery 12, inductance L 1 and transistor Q1 form a loop, battery 12 is considered as power supply, inductance L 1 and transistor Q1 are considered as load, therefore, inductance L 1 near an end of battery 12 for just, the other end is negative, and has the electric current of a conducting on the inductance.Consider the situation that transistor Q1 closes again.When transistor Q1 closes, physical characteristic according to inductance, on the inductance immediate current will with transistor Q1 big or small the same before closing, at this moment, inductance L 1 is considered as a power supply supply element, can provide an electric current to diode D2, also because transistor Q1 this moment closes, so electric current via diode D2 to capacitor C 1 charging because the back electromotive force that this moment, inductance L 1 was produced can with 12 one-tenths serial connection states of battery, so the voltage of capacitor C 1 will begin rising.
In the process that the voltage of capacitor C 1 is rising, charging current can be more and more little, and the energy that can regard as on the energy-storage travelling wave tube inductance L 1 has been transferred to capacitor C 1, and therefore, needing be inductance L 1 makeup energy discontinuously.So transistor Q1 continuous switch in the whole process of boosting could provide inductance L 1 energy always, and transfer the energy to capacitor C 1 and boost.The characteristic of known diode is forward to have the electric current mistake during conducting when them, otherwise diode will close, and it is in order to prevent electric current backflow that diode D2 is put between inductance L 1 and the capacitor C 1, and the direction of guaranteeing charge current flows must be to flow to capacitor C 1.
Please refer to Fig. 3.Fig. 3 is the schematic diagram of feedback control circuit 24 of the present invention.Feedback control circuit 24 comprise a voltage detector 25, one oscillators 27 and one and the door 28.Feedback control circuit 24 actions are roughly as follows: at first detect voltage Va size, if voltage Va is less than a predetermined value, then producing periodic pulse signal comes oxide-semiconductor control transistors Q1 to do switch motion, if voltage Va is greater than this predetermined value, then produce a logic and be 0 low-voltage and close transistor Q1, so booster circuit 11 just no longer boosts.
Please refer to Fig. 4.Fig. 4 is the schematic diagram of first embodiment of feedback control circuit 24 of the present invention.Voltage detector 25 in the feedback control circuit 24 comprises two diode D3 and D4, three resistance R 1, R2 and R3, a two-carrier junction transistor Q2 and two reversers 32.The emitter grounding of two-carrier junction transistor Q2, collector electrode is connected to resistance R 3, and base stage is connected to resistance R 1 and is serially connected as shown in the figure with D4 with resistance R 2, two diode D3 and links to each other with resistance R 1.The collector electrode of two-carrier junction transistor Q2 is connected to and door 28 after connecting two reversers 32.Please note the node Va of diode D3 anode among the figure, the node Va of Fig. 4 is the identical node Va of Fig. 2.
The operating principle of the voltage detector 25 of Fig. 4 is described below: we suppose that earlier the supply voltage of battery is 2V, and wish voltage is risen to 3.5V (that is to say that the voltage predetermined value is 3.5V), the magnitude of voltage of node Va is the conduction voltage drop that 2V deducts a diode D1 (with reference to figure 2) in the time of at the beginning, this voltage also can't make transistor Q2 conducting, therefore almost do not have electric current to flow through on the resistance R 3, the voltage of transistor Q2 collector electrode is the high voltage near 2V.This high voltage through two reversers 32 after still with high-tension logical one output.The purpose of two reversers 32 is to adjust the logic current potential, becomes clearly logical zero or logical one after making high low-voltage on the transistor Q2 collector electrode through two reversers.Next, the voltage of node Va is because the relation of boosting constantly increases, when the voltage of node Va is upgraded to 3.5V, two diode D3, D4 conducting electric current, flow through again resistance R 1 and R2 of this electric current forms a pressure drop on transistor Q2 base stage, the limit voltage that this pressure drop has surpassed transistor Q2 makes transistor Q2 conducting.In this case, the collector electrode of transistor Q2 flows through a large amount of electric currents, and this big electric current resistance R 3 back of flowing through produces a bigger pressure drop, so the collector voltage of transistor Q2 becomes low-voltage from high voltage originally, at last by the low-voltage of reverser 32 output logics 0.
Diode D3, D4 are two Zener diodes in this embodiment, and resistance R 1 or R2 can be variable resistors, the number number of diode and kind are the voltage ranges that is used for adjusting transistor Q2 base stage, and number is not defined as two, and kind also can be chosen according to need by the designer.Transistor Q2 is applied to the present invention and is not defined as the two-carrier junction transistor, and it plants the function of the same attainable cost invention of transistor.Be to be the applied battery of increasing apparatus with the fuel cell in an embodiment of the present invention.
The oscillator 27 of Fig. 4 is ring type oscillators, comprises three inverters, 32, two resistance R 4, R5, a capacitor C 2 and a switch SW 1.Three inverters, 32 serial connections together and form negative feedback loop and produce vibration, resistance R 5 and capacitor C 2 similar filters can be adjusted the frequency of oscillation of oscillator, are the frequency control circuit of oscillator 27.Switch SW 1 provides the user to select to want to intercept the oscillation signal output of oscillator 27.Resistance R 4 is to prevent the input suspension joint that joins with oscillator 27 with door 28.The output of voltage detector 25 and oscillator 27 all is connected to and door 28, the oscillation signal of oscillator 27 output do with the output signal of voltage detector 25 and computing after export the base stage of booster circuit 11 interior transistor Q1 to, whether the conducting of oxide-semiconductor control transistors Q1 to be.
The present invention utilizes oscillating circuit to set up a frequency generator; replace original pulse wave frequency band modulation; charge and discharge the media of switch as control; and add that in output diode and resistance form feedback control circuit; use and adjust and protect our required output voltage; and whether a feedback part is enough as judging voltage drop; the oscillation signal of feedback and oscillator generation used with door couple together, suppose that output voltage has arrived required voltage, is fed back to electronegative potential; exporting with door also is electronegative potential; booster circuit not energy storage this moment, when output voltage to rated voltage, be fed back to high potential; oscillation signal sees through and exports booster circuit to door, rapidly charging.This booster circuit is mainly the input voltage that the conversion operations scope is 1.6V to 5V, supplying with all kinds of mobile electronic product work uses, booster tension significantly, and the Mao power that disappears of circuit itself is lower than the circuit of previous pulse wave frequency band modulation on voltage transitions, it is easy that circuit is adjusted output voltage, can adjust immediately being applicable on the various demand circuit, and the required element of forming circuit is obtained easily, with low cost.
And previous increasing apparatus is when output voltage reaches predetermined value, still constantly export oscillation signal, cause booster circuit in the time need not boosting, inner energy-storage travelling wave tube is still held the energy conversion cycle of carrying out energy storage and energy release disconnectedly, and in each extra power of battery of energy conversion cycle Shi Xiao Mao, make battery offer the power conversion rate step-down of extraneous load, it is bigger that the increasing apparatus vibration produces noise.Increasing apparatus of the present invention has a feedback control circuit, whether the output voltage that can detect after boosting has reached a predetermined value, and work as output voltage more than or equal to this predetermined value, feedback control circuit of the present invention stops booster circuit automatically and continues to boost, therefore do not have unnecessary energy content of battery Xiao Mao, have Di Xiao Mao power, high conversion efficiency, and advantage with low cost, be fit to very much the booster circuit of commercial electronic product now.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, under the situation that does not break away from spirit of the present invention, also can make the variation and the modification of various equivalences, therefore, as long as variation, the modification to the foregoing description all will drop in the scope of claims of the present invention in connotation scope of the present invention.
Claims (15)
1. increasing apparatus, it comprises:
One booster circuit is used for an input voltage is increased to a predetermined output voltage;
One oscillator is used for producing when this booster circuit required oscillation signal when increasing this input voltage;
One voltage detector is electrically connected mutually with this booster circuit, is used for output voltage when this booster circuit during more than or equal to a certain predetermined value, and output logic is 0 signal, and when the output voltage of this booster circuit was lower than this predetermined value, output logic was 1 signal;
One with door, should with two inputs of door wherein an end link to each other with this oscillator, the other end links to each other with this voltage detector, output connects this booster circuit.
2. increasing apparatus as claimed in claim 1 is characterized in that, this oscillator is the ring type oscillator.
3. increasing apparatus as claimed in claim 1 is characterized in that this oscillator comprises a frequency control circuit in addition, is used for adjusting the frequency of this oscillation signal that this oscillator produces.
4. increasing apparatus as claimed in claim 1 is characterized in that this input voltage is to be provided by fuel cell.
5. increasing apparatus as claimed in claim 1, it is characterized in that, this voltage detector comprises a diode, first resistance, second resistance, the 3rd resistance and a two-carrier junction transistor, the emitter grounding of this two-carrier junction transistor, the collector electrode of this two-carrier junction transistor is connected to first end of this first resistance, the base stage of this two-carrier junction transistor is connected to first end of this second resistance and the 3rd resistance, the second end ground connection of this second resistance, second end of the 3rd resistance and the negative pole of this diode join, and second end of the positive pole of this diode and this first resistance joins.
6. increasing apparatus as claimed in claim 5 is characterized in that, other comprises a pair of series-opposing device, is electrically connected to the collector electrode of this two-carrier junction transistor, in order to adjust the logic current potential.
7. increasing apparatus as claimed in claim 5 is characterized in that, this second resistance or the 3rd resistance are variable resistor.
8. increasing apparatus as claimed in claim 5 is characterized in that, this diode is a Zener diode.
9. the step-up method of a battery, this battery can be coupled to an increasing apparatus, and this increasing apparatus includes a booster circuit, an oscillator, a voltage detector and one and door, and this step-up method includes:
(a) this voltage detector detects an output voltage size of this booster circuit;
(b) when this output voltage less than a predetermined value, this voltage detector is exported a logic be 1 high voltage signal to should with an input of door, the pulse signal of this oscillator output one-period property extremely is somebody's turn to do another input with door, should do switch motion for this periodic pulse signal and with this transistor of controlling this booster circuit with the output end signal of door, increase this output voltage; And
(c) reach this predetermined value when this output voltage, this voltage detector then produces a logic be 0 low-voltage signal to should with an input of door, the pulse signal that this oscillator is still exported one-period property to should with another input of door, should be that logic is 0 low-voltage signal and closes this transistor with this with output end signal of door.
10. the step-up method of a kind of battery as claimed in claim 9 is characterized in that, this oscillator comprises a frequency control circuit in addition, is used for adjusting the frequency of this oscillation signal that this oscillator produces.
11. the step-up method of a kind of battery as claimed in claim 9 is characterized in that, this battery is a fuel cell.
12. the step-up method of a kind of battery as claimed in claim 9, it is characterized in that, this voltage detector comprises a diode, first resistance, second resistance, the 3rd resistance and a two-carrier junction transistor, the emitter grounding of this two-carrier junction transistor, the collector electrode of this two-carrier junction transistor is connected to first end of this first resistance, the base stage of this two-carrier junction transistor is connected to first end of this second resistance and the 3rd resistance, the second end ground connection of this second resistance, second end of the 3rd resistance and the negative pole of this diode join, and second end of the positive pole of this diode and this first resistance joins.
13. the step-up method of a kind of battery as claimed in claim 12 is characterized in that, this voltage detector comprises a pair of series-opposing device in addition, is electrically connected to the collector electrode of this two-carrier junction transistor, in order to adjust the logic current potential.
14. the step-up method of a kind of battery as claimed in claim 12 is characterized in that, this second resistance or the 3rd resistance are variable resistor.
15. the step-up method of a kind of battery as claimed in claim 12 is characterized in that, this diode is a Zener diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100399395A CN100392969C (en) | 2004-03-11 | 2004-03-11 | Boost installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100399395A CN100392969C (en) | 2004-03-11 | 2004-03-11 | Boost installation |
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| Publication Number | Publication Date |
|---|---|
| CN1667932A CN1667932A (en) | 2005-09-14 |
| CN100392969C true CN100392969C (en) | 2008-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100399395A Expired - Lifetime CN100392969C (en) | 2004-03-11 | 2004-03-11 | Boost installation |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008004038A (en) | 2006-06-26 | 2008-01-10 | Ricoh Co Ltd | Voltage regulator |
| CN102023938B (en) * | 2009-09-18 | 2013-04-24 | 鸿富锦精密工业（深圳）有限公司 | Electronic device and power off protection method |
| US9231476B2 (en) * | 2013-05-01 | 2016-01-05 | Texas Instruments Incorporated | Tracking energy consumption using a boost-buck technique |
| CN104731141B (en) * | 2013-12-24 | 2017-01-25 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Control method and system of power source voltage of electrostatic chuck |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10199692A (en) * | 1985-09-30 | 1998-07-31 | Toshiba Lighting & Technol Corp | Lighting equipment for discharge lamp and lighting equipment in discharge lamp |
| CN2402045Y (en) * | 1999-11-23 | 2000-10-18 | 高水来 | UPS unit for fluorescent lamp |
| CN1352484A (en) * | 2001-11-15 | 2002-06-05 | 北京机电研究所 | Voltage converter for electric automobile fuel battery unit |
| JP2003047166A (en) * | 2001-08-02 | 2003-02-14 | Canon Inc | Capacitor charge device and stroboscopic device |
| JP2003333836A (en) * | 2002-05-09 | 2003-11-21 | Matsushita Electric Ind Co Ltd | Dc-dc converter |
-
2004
- 2004-03-11 CN CNB2004100399395A patent/CN100392969C/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10199692A (en) * | 1985-09-30 | 1998-07-31 | Toshiba Lighting & Technol Corp | Lighting equipment for discharge lamp and lighting equipment in discharge lamp |
| CN2402045Y (en) * | 1999-11-23 | 2000-10-18 | 高水来 | UPS unit for fluorescent lamp |
| JP2003047166A (en) * | 2001-08-02 | 2003-02-14 | Canon Inc | Capacitor charge device and stroboscopic device |
| CN1352484A (en) * | 2001-11-15 | 2002-06-05 | 北京机电研究所 | Voltage converter for electric automobile fuel battery unit |
| JP2003333836A (en) * | 2002-05-09 | 2003-11-21 | Matsushita Electric Ind Co Ltd | Dc-dc converter |
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| CN1667932A (en) | 2005-09-14 |
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Granted publication date: 20080604 |