CN103779839A - Automatic opening type starting circuit powered up by rechargeable battery - Google Patents
Automatic opening type starting circuit powered up by rechargeable battery Download PDFInfo
- Publication number
- CN103779839A CN103779839A CN201410034319.6A CN201410034319A CN103779839A CN 103779839 A CN103779839 A CN 103779839A CN 201410034319 A CN201410034319 A CN 201410034319A CN 103779839 A CN103779839 A CN 103779839A
- Authority
- CN
- China
- Prior art keywords
- voltage
- rechargeable battery
- circuit
- electric capacity
- load
- 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.)
- Granted
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an automatic opening type starting circuit powered up by a rechargeable battery. The automatic opening type starting circuit powered up by the rechargeable battery comprises the rechargeable battery, an automatic opening voltage regulator tube, an output voltage setting circuit, a current-limiting resistor, a triode and a load, wherein the output voltage setting circuit can be used for keeping the output voltage of the rechargeable battery at a set value, the current-limiting resistor is matched with the triode to provide working current for the load, the automatic opening voltage regulator tube is used for providing an opening output voltage control signal, and when the output voltage of the rechargeable battery is lower than input low-voltage protection of the automatic opening voltage regulator tube, the input voltage of the load is controlled to be lower than the working voltage of the load. According to the automatic opening type starting circuit powered up by the rechargeable battery, due to the fact that the automatic opening voltage regulator tube is additionally arranged in the starting circuit, overdischarge of the battery can be effectively prevented, the starting circuit can be used for design of starting circuits powered by rechargeable batteries, and the application prospect is broad.
Description
Technical field
The present invention relates to a kind of start-up circuit that certainly turn-offs, relate in particular to rechargeable battery electric power system technical field.
Background technology
Along with popularizing of portable electric appts, directly utilize the electronic equipment of rechargeable battery power supply to be widely used in the various aspects of people's productive life.
Along with the intelligent degree of electronic equipment is more and more higher, simulation, digit chip are used widely in circuit design.And from the consideration of volume and cost, device required in circuit is also received certain restriction.What should consider battery for low cost, small size rechargeable battery electric power system utilizes the problems such as life-span, cost, service efficiency and circuit protection.Rechargeable battery useful life number of times with to discharge and recharge degree directly related, there is stronger nonlinear characteristic.Along with the difference of discharge voltage degree, battery terminal voltage, output current all can produce very large variation.The battery charging and discharging management circuit cost price of function admirable is higher at present, has limited the application of rechargeable battery protective circuit in low cost occasion.Therefore need the fully operating characteristic in conjunction with battery, research is applicable to the control technology of low cost occasion battery charging and discharging management.
Set the operating voltage of start-up circuit by triode, voltage stabilizing circuit, be used widely with its low cost with the steady state working voltage that proof load IC circuit is required, have control simple, reliability is high, good stability and be easy to the advantages such as realization.This patent mainly improves traditional start-up circuit, to realize the control to rechargeable battery power supply occasion, prevents that battery over-discharge is to improve useful life.
Summary of the invention
Technical problem to be solved by this invention is for rechargeable battery powered electronic device, in order to promote the useful life of rechargeable battery (lithium battery, lead-acid battery etc.), the implementation method of low cost, high reliability battery powered managing has been proposed, by controlling the output services voltage of start-up circuit, realize and avoid battery over-discharge.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
The present invention proposes a kind of start-up circuit of shutoff certainly that adopts rechargeable battery power supply, comprises rechargeable battery, from shutoff voltage voltage-stabiliser tube, output voltage initialization circuit, current-limiting resistance, triode; The positive pole of rechargeable battery is connected with one end of current-limiting resistance, the collector electrode of triode respectively; The other end of described current-limiting resistance be connected from the negative electrode of shutoff voltage voltage-stabiliser tube, the described anode from shutoff voltage voltage-stabiliser tube connects respectively the input of output voltage initialization circuit, the base stage of triode; The emitter of described triode connects respectively the output of output voltage initialization circuit, one end of load; The other end ground connection of load.
In the time that rechargeable battery voltage is less than from shutoff voltage voltage-stabiliser tube voltage, from the work of shutoff voltage voltage-stabiliser tube blocking-up start-up circuit, the output end voltage of start-up circuit is approximately 0;
When rechargeable battery voltage deducts in the time that shutoff voltage voltage-stabiliser tube voltage is less than the required normal working voltage of load, the output voltage of start-up circuit is that rechargeable battery voltage deducts the operating voltage from shutoff voltage voltage-stabiliser tube;
Rechargeable battery voltage deducts in the time that shutoff voltage voltage-stabiliser tube voltage is greater than the required normal working voltage of load, and output voltage initialization circuit remains on set point by the output voltage stabilization of start-up circuit and offers load.
As of the present invention, from turn-offing the further prioritization scheme of start-up circuit, described output voltage initialization circuit comprises the first electric capacity, voltage stabilizing chip TL431, the second resistance, the 3rd resistance, electric capacity of voltage regulation; Wherein, the described anode from shutoff voltage voltage-stabiliser tube connects respectively negative electrode, one end of the first electric capacity and the base stage of triode of voltage stabilizing chip TL431; The benchmark port of described voltage stabilizing chip TL431 is connected with one end of the second resistance, one end of the 3rd resistance respectively; The emitter of described triode connects respectively the other end, one end of electric capacity of voltage regulation and one end of load of the second resistance; Ground connection after the other end, the anode of voltage stabilizing chip TL431 and the other end of the first electric capacity of the other end of described load, the other end of electric capacity of voltage regulation, the 3rd resistance is connected with the negative pole of rechargeable battery respectively.
As of the present invention, from turn-offing the further prioritization scheme of start-up circuit, described output voltage initialization circuit comprises the first electric capacity, the second voltage-stabiliser tube and electric capacity of voltage regulation; Wherein, the described anode from shutoff voltage voltage-stabiliser tube connects respectively one end, the negative electrode of the second voltage-stabiliser tube and the base stage of triode of the first electric capacity; The emitter of described triode connects respectively one end of electric capacity of voltage regulation and one end of load; Ground connection after the anode of the other end of described load, the other end of electric capacity of voltage regulation, the second voltage-stabiliser tube and the other end of the first electric capacity are connected with the negative pole of rechargeable battery respectively.
As of the present invention, from turn-offing the further prioritization scheme of start-up circuit, described load is analog IC chip or digital IC chip.
As of the present invention, from turn-offing start-up circuit further prioritization scheme, rechargeable battery is that lithium battery or lead-acid battery or other types discharge and recharge battery.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
The present invention is by increase voltage-stabiliser tube in start-up circuit, when battery during lower than certain voltage start-up circuit no longer provide the load of IC chip required operating voltage, can effectively prevent the overdischarge of battery.The present invention has advantages of that circuit element is few, cost is low, by monitoring battery input voltage, judges whether the output voltage of start-up circuit is stationary value.By the control from shutoff voltage voltage-stabiliser tube, be conducive to prevent the overdischarge of battery.This circuit is applicable to the design of rechargeable battery power supply start-up circuit, has broad application prospects.
Accompanying drawing explanation
Fig. 1 is the preferred embodiments of the present invention principle framework schematic diagram.
When Fig. 2 is cell voltage variation, start-up circuit change in voltage schematic diagram.
Fig. 3 is another kind of embodiment implementation method schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, it has provided the preferred embodiments of the present invention principle framework figure.V1 is rechargeable battery, can be lithium battery or lead-acid battery.R1 is current-limiting resistance, can be by being used in conjunction with Q1 pipe, can setting the maximum operating currenbt that load R4 provides; Z1 is from shutoff voltage voltage-stabiliser tube, is used for setting battery over-discharge protection electrical voltage point.Capacitor C 1, voltage stabilizing chip U1, resistance R 2 and resistance R 3 are output voltage initialization circuit, so that the stable voltage forming on load R4; C2 is electric capacity of voltage regulation; R4 is the load of start-up circuit, can be the numerals such as single-chip microcomputer or analog chip.
In the time of V1<Z1, the output end voltage of start-up circuit is 0, does not produce any power consumption, as shown in Figure 2 the first stage.
When the operating voltage of V1-Z1< numeral or fictitious load chip IC, the output end voltage of start-up circuit can not meet the normal work of numeral or analog IC chip, and required electric current is extremely low leakage current.Second stage as shown in Figure 2.
When the operating voltage of V1-Z1> numeral or fictitious load chip IC, the output of start-up circuit is set up a burning voltage, and the digital IC such as single-chip microcomputer could normally work, as+5V.Start-up circuit provides tens required mA electric currents of steady operation.Phase III as shown in Figure 2.
As shown in Figure 2 cell voltage change time, start-up circuit change in voltage schematic diagram, only has cell voltage as seen higher than certain value, the output voltage of start-up circuit is just the required stable voltage of digit chip.When input voltage is during lower than 6V, start-up circuit output voltage is approximately 0.When input voltage is 6V while changing to 11V, start-up circuit output voltage is linear to rise, but lower than the steady state working voltage of digit chip, digit chip is not worked, and therefore the power consumption of start-up circuit is extremely low.Only have when input voltage is during higher than 11V, start-up circuit output voltage is just set up stationary value, and digit chip could normal work.Therefore the discharge voltage that just can control battery by such method, prevents that battery over-discharge from affecting useful life.Certainly the required input voltage point of start-up circuit steady operation can be by setting arbitrarily from the value of shutoff voltage voltage-stabiliser tube Z1 in Fig. 1.
As shown in Figure 3, it has provided the start-up circuit of the shutoff certainly schematic diagram of another example of the present invention.V1 is rechargeable battery, can be lithium battery or lead-acid battery.R1 is current-limiting resistance, can be by being used in conjunction with Q1 pipe, can setting the maximum operating currenbt that load R2 provides; Z1 is from shutoff voltage voltage-stabiliser tube, is used for setting battery over-discharge protection electrical voltage point.Capacitor C 1, voltage-stabiliser tube Z2 are output voltage initialization circuit, so that the stable voltage forming on load R2; C2 is electric capacity of voltage regulation; R2 is the load of start-up circuit, can be the numerals such as single-chip microcomputer or analog chip.
The design parameter of preferred embodiment of the present invention is as follows:
Rechargeable battery under-voltage protection point is 11VDC; The output voltage 4.5VDC that start-up circuit is set; Output current 50mA; Output filter capacitor C2 is 2 μ F; Be 6.2V voltage-stabiliser tube from shutoff voltage voltage-stabiliser tube Z1, current-limiting resistance R1 is 1K; Pliotron Q1 is 2SD882; Filter capacitor C1 is 0.1 μ F, and U1 is TL431, and R2 is 7K, and R3 is 10K; R4 is load, and essence is to have digit chip or the analog chips such as the single-chip microcomputer of certain steady state working voltage requirement.
Claims (6)
1. the start-up circuit of shutoff certainly that adopts rechargeable battery power supply, is characterized in that: comprise rechargeable battery, from shutoff voltage voltage-stabiliser tube, output voltage initialization circuit, current-limiting resistance, triode; The positive pole of rechargeable battery is connected with one end of current-limiting resistance, the collector electrode of triode respectively; The other end of described current-limiting resistance be connected from the negative electrode of shutoff voltage voltage-stabiliser tube, the described anode from shutoff voltage voltage-stabiliser tube connects respectively the input of output voltage initialization circuit, the base stage of triode; The emitter of described triode connects respectively the output of output voltage initialization circuit, one end of load; The other end ground connection of load.
2. a kind of start-up circuit of shutoff certainly that adopts rechargeable battery power supply according to claim 1, is characterized in that: described output voltage initialization circuit comprises the first electric capacity (C1), voltage stabilizing chip (U1), the second resistance (R2), the 3rd resistance (R3), electric capacity of voltage regulation (C2); Wherein, the described anode from shutoff voltage voltage-stabiliser tube (Z1) connects respectively negative electrode, one end of the first electric capacity (C1) and the base stage of triode (Q1) of voltage stabilizing chip (U1); The benchmark port of described voltage stabilizing chip (U1) is connected with one end of the second resistance (R2), one end of the 3rd resistance (R3) respectively; The emitter of described triode (Q1) connects respectively the other end, one end of electric capacity of voltage regulation (C2) and one end of load (R4) of the second resistance (R2); Ground connection after the other end, the anode of voltage stabilizing chip (U1) and the other end of the first electric capacity (C1) of the other end of described load (R4), the other end of electric capacity of voltage regulation (C2), the 3rd resistance (R3) is connected with the negative pole of rechargeable battery (V1) respectively.
3. a kind of start-up circuit of shutoff certainly that adopts rechargeable battery power supply according to claim 2, is characterized in that: the model of described voltage stabilizing chip (U1) is TL431.
4. a kind of start-up circuit of shutoff certainly that adopts rechargeable battery power supply according to claim 1, is characterized in that: described output voltage initialization circuit comprises the first electric capacity (C1), the second voltage-stabiliser tube (Z2) and electric capacity of voltage regulation (C2); Wherein, the described anode from shutoff voltage voltage-stabiliser tube (Z1) connects respectively one end, the negative electrode of the second voltage-stabiliser tube (Z2) and the base stage of triode (Q1) of the first electric capacity (C1); The emitter of described triode (Q1) connects respectively one end of electric capacity of voltage regulation (C2) and one end of load (R2); Ground connection after the other end of described load (R2), the other end of electric capacity of voltage regulation (C2), the anode of the second voltage-stabiliser tube (Z2) and the other end of the first electric capacity (C1) are connected with the negative pole of rechargeable battery (V1) respectively.
5. according to the arbitrary described a kind of start-up circuit of shutoff certainly that adopts rechargeable battery power supply of claim 1 to 4, it is characterized in that: described load is analog IC chip or digital IC chip.
6. according to the arbitrary described a kind of start-up circuit of shutoff certainly that adopts rechargeable battery power supply of claim 1 to 4, it is characterized in that: described rechargeable battery is that lithium battery or lead-acid battery or other types discharge and recharge battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034319.6A CN103779839B (en) | 2014-01-24 | 2014-01-24 | A kind of automatic shutoff start-up circuit adopting rechargeable battery to power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034319.6A CN103779839B (en) | 2014-01-24 | 2014-01-24 | A kind of automatic shutoff start-up circuit adopting rechargeable battery to power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103779839A true CN103779839A (en) | 2014-05-07 |
| CN103779839B CN103779839B (en) | 2016-06-08 |
Family
ID=50571809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410034319.6A Expired - Fee Related CN103779839B (en) | 2014-01-24 | 2014-01-24 | A kind of automatic shutoff start-up circuit adopting rechargeable battery to power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103779839B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196390A (en) * | 2017-06-14 | 2017-09-22 | 桂林电子科技大学 | A kind of wireless charging device and method |
| CN110492434A (en) * | 2019-05-29 | 2019-11-22 | 广东明丰电源电器实业有限公司 | A kind of under-voltage protecting circuit that brief and practical can restore automatically |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908755A (en) * | 2009-06-02 | 2010-12-08 | 鸿富锦精密工业（深圳）有限公司 | Overdischarge protector for battery |
| WO2011122756A1 (en) * | 2010-04-01 | 2011-10-06 | Lee Dae-Kyo | Device and method for compensating for the power of an electric load of a vehicle using a high-capacity capacitor |
| CN102545163A (en) * | 2010-12-24 | 2012-07-04 | 海洋王照明科技股份有限公司 | Battery discharge protection circuit and LED (Light Emitting Diode) lamp |
| CN203180593U (en) * | 2013-04-18 | 2013-09-04 | 中煤科工集团重庆研究院 | Ceaseless direct current source for mining gas pipe |
| CN203722214U (en) * | 2014-01-24 | 2014-07-16 | 南京邮电大学 | Self-switching-off starting circuit powered by rechargeable battery |
-
2014
- 2014-01-24 CN CN201410034319.6A patent/CN103779839B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908755A (en) * | 2009-06-02 | 2010-12-08 | 鸿富锦精密工业（深圳）有限公司 | Overdischarge protector for battery |
| WO2011122756A1 (en) * | 2010-04-01 | 2011-10-06 | Lee Dae-Kyo | Device and method for compensating for the power of an electric load of a vehicle using a high-capacity capacitor |
| CN102545163A (en) * | 2010-12-24 | 2012-07-04 | 海洋王照明科技股份有限公司 | Battery discharge protection circuit and LED (Light Emitting Diode) lamp |
| CN203180593U (en) * | 2013-04-18 | 2013-09-04 | 中煤科工集团重庆研究院 | Ceaseless direct current source for mining gas pipe |
| CN203722214U (en) * | 2014-01-24 | 2014-07-16 | 南京邮电大学 | Self-switching-off starting circuit powered by rechargeable battery |
Non-Patent Citations (1)
| Title |
|---|
| 陈中良等: "一种超低功耗锂离子电池保护电路设计", 《微电子学与计算机》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196390A (en) * | 2017-06-14 | 2017-09-22 | 桂林电子科技大学 | A kind of wireless charging device and method |
| CN107196390B (en) * | 2017-06-14 | 2023-04-18 | 桂林电子科技大学 | Wireless charging device and method |
| CN110492434A (en) * | 2019-05-29 | 2019-11-22 | 广东明丰电源电器实业有限公司 | A kind of under-voltage protecting circuit that brief and practical can restore automatically |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103779839B (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201682417U (en) | Power supply protection circuit based on super capacitor | |
| CN103928958B (en) | A kind of charging and discharging lithium battery management circuit and lithium battery management system | |
| CN202663092U (en) | Circuit protecting battery against overcharge | |
| CN205610238U (en) | Power management integration circuit | |
| CN105207305A (en) | Fault indicator monitoring terminal based on solar charging technology | |
| CN107979123B (en) | Power supply self-adaptive lithium battery charging management circuit | |
| CN117220399B (en) | Lithium battery, solar power supply conversion circuit and conversion control method | |
| CN101937016A (en) | Low voltage promoting device | |
| CN103779839B (en) | A kind of automatic shutoff start-up circuit adopting rechargeable battery to power | |
| CN204967352U (en) | Mobile power source | |
| CN101860054A (en) | Charge management circuit of lithium-ion battery | |
| CN203722214U (en) | Self-switching-off starting circuit powered by rechargeable battery | |
| CN203289174U (en) | Full-automatic large-power LED lamp power supply circuit | |
| CN204928207U (en) | But lithium ion battery of pressure regulating group | |
| CN204424972U (en) | For the charge protector of capacitance decompression | |
| CN204030645U (en) | The charging circuit of portable power source | |
| CN205646857U (en) | Mobile power source circuit | |
| CN104283195A (en) | Storage battery protection circuit preventing overcharge | |
| CN203398833U (en) | Battery charging/discharging circuit of uninterruptible power supply | |
| CN202840935U (en) | Switching power supply of battery management system of lithium ion battery pack | |
| CN102611149A (en) | Charging circuit of outdoor online monitoring device | |
| CN104868543A (en) | Intelligent battery charger with wider input voltage scope | |
| CN205945120U (en) | Automatic charger of solar energy | |
| CN204334052U (en) | A kind of battery drops into circuit automatically | |
| CN205681144U (en) | The modular combination power supply unit of Electric control and monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20140507 Assignee: Jiangsu Nanyou IOT Technology Park Ltd. Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2016320000221 Denomination of invention: Automatic opening type starting circuit powered up by rechargeable battery Granted publication date: 20160608 License type: Common License Record date: 20161129 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu Nanyou IOT Technology Park Ltd. Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2016320000221 Date of cancellation: 20180116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20190124 |