CN105656121A - Passive circuit automatic control device - Google Patents
Passive circuit automatic control device Download PDFInfo
- Publication number
- CN105656121A CN105656121A CN201610076803.4A CN201610076803A CN105656121A CN 105656121 A CN105656121 A CN 105656121A CN 201610076803 A CN201610076803 A CN 201610076803A CN 105656121 A CN105656121 A CN 105656121A
- Authority
- CN
- China
- Prior art keywords
- dormancy
- chip
- battery
- circuit
- resistance
- 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
- 230000005059 dormancy Effects 0.000 claims abstract description 36
- 239000013078 crystal Substances 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 25
- 229910052744 lithium Inorganic materials 0.000 claims description 25
- 230000005611 electricity Effects 0.000 claims description 15
- 230000006870 function Effects 0.000 claims description 8
- 230000007774 longterm Effects 0.000 claims description 3
- 230000009993 protective function Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
Classifications
-
- H02J7/0026—
-
- 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
- H02J7/00302—Overcharge protection
-
- 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
- H02J7/00304—Overcurrent protection
-
- 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
- H02J7/00306—Overdischarge protection
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a passive circuit automatic control device. The circuit comprises a crystal transistor, a first resistor, a second resistor, and a DC/DC self-control boosting/dormancy chip (U2); the switch-on and switch-off of the output load are respectively controlled through the on and off of the crystal transistor; an emitting junction of the crystal transistor is connected in an output load loop in series, the base electrode is connected with a battery output positive electrode, the collector is connected with a dormancy control end of the DC/DC self-control boosting/dormancy chip (U2) through the first resistor which plays the effect of limiting current; and the second resistor is connected between the battery output negative electrode and the connecting point of the first resistor and the dormancy control end. The above passive circuit automatic control device is capable of reducing the self consumption of the circuit, so that the finite electric quantity of an instrument battery can be more supplied to the load.
Description
Technical field
The present invention relates to field of circuit control, particularly relate to a kind of passive circuit automaton.
Background technology
General to load, with or without judging and controlling, mostly adopt active device, such as: comparator (amplifier) or other power reset IC detect and control circuit, the work of these passive chips (IC) itself is required for power supply supply, it is called active device, but mostly at hundreds of microampere, belong to Micro Energy Lose. This circuit for powering with lithium cell, when not having load, DC/DC converter circuit still needs to lithium electricity and maintains power supply, does not set switch, and uninterrupted power supply year in year out, build-up effect is very considerable. Fully charged battery, even if outwards not powering, DC/DC converter circuit itself is all consuming limited electricity all the time, say, that battery does not use the electricity that yet can be lost, here it is self discharge. In order to be provided out more electric energy, reducing autophage as far as possible is unique solution.
Summary of the invention
In view of the above problems, in order to reduce the self discharge of battery, it is an object of the invention to provide a kind of passive circuit automaton and wake and turn off instrument battery up, reduce the consumption of circuit self, make limited electricity supply load more.
The invention provides a kind of passive circuit automaton, this circuit includes crystal triode, the first resistance, the second resistance, DC/DC automatic control boosting/dormancy chip (U2); Controlled respectively by the turn-on and turn-off of crystal triode access and disconnect output loading; The emitter junction of crystal triode, namely BE knot, is connected in series in output loading loop, and its base stage connects battery output cathode, the dormancy that colelctor electrode is connected to DC/DC automatic control boosting/dormancy chip (U2) by the first resistance controls end, and the first resistance plays metering function; Second resistance is connected between the junction point of battery output negative pole and the first resistance and dormancy control end.
Preferably, when not connecing output loading, emitter junction is opened a way, base current Ib is zero, clamped effect due to the second resistance, it is low level that the dormancy of DC/DC automatic control boosting/dormancy chip (U2) controls end, then control DC/DC automatic control boosting/dormancy chip (U2) and be in dormancy;When accessing output loading, base current Ib is not zero, then the collector current Ic of crystal triode is not zero, collector current is by the bleeder circuit of the first resistance and the second resistance composition, it is high level that the dormancy making DC/DC automatic control boosting/dormancy chip (U2) controls end, then control DC/DC automatic control boosting/dormancy chip (U2) and start work, to load output voltage.
It addition, present invention also offers a kind of instrument battery with above-mentioned passive circuit automaton, this instrument battery includes lithium cell, built-in intelligence control circuit, and with standard USB charging socket, charging electrode separates with output electrode; Described built-in intelligence control circuit comprises passive circuit automaton.
Beneficial effects of the present invention:
The present invention and active device (such as: low consumption amplifier comparator or compared with other watchdog reset devices) compare can make circuit self consume the self discharge power consumption less than instrument battery, make limited electricity supply load more, and simple in construction, cost is low.
Accompanying drawing explanation
Fig. 1 is the battery built-in intelligence control circuit module map in the embodiment of the present invention;
Fig. 2 is the battery built-in intelligence control circuit module map in the embodiment of the present invention and circuit theory diagrams;
Fig. 3 is the passive circuit automaton in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is battery built-in intelligence control circuit module map, and built-in intelligence control circuit includes intelligence discharge charge electric control module, lithium battery protection module, automatic control boosting (dormancy) module, output voltage control module, crosses stream/short circuit protection module, load detecting module. The charge/discharge of instrument battery is controlled by intelligence discharge charge electric control module; this module is made up of intelligence lithium electricity charging management chip U1 (4045); it is a single-lithium-battery constant current, constant voltage linear-charging intelligent chip; turn off including current monitoring, low pressure, automatically fill again/stop and low current mode/shutoff (dormancy) pattern, thermal feedback automatically control the various functions such as charging current; Full Charge Capacity is also had to drop current charge and automatic stop function function; protection lithium cell does not overcharge, charge less, extends battery core service life. Lithium battery protection module is the dual-protection circuit of lithium cell; electric discharge and the over of lithium cell is collectively constituted by U3 (DW01) and U4 (MOS8025); electric current can be cut off from lithium cell source when lithium cell discharges at the end or discharge current is excessive, not only protect the safety of electrical equipment but also protect lithium cell because of the damage of over-discharge. It is required voltage to control output voltage; such as: the product of different output voltage can be set; have employed DC/DC automatic control boosting/dormancy chip U2 (1308) that there is high-performance high efficiency, had stream, the protection such as overheated, low-power consumption, output voltage adjustable and stable; this DC/DC automatic control boosting/dormancy chip also has a feature; it it is exactly the sleep mode of its self extremely low power dissipation; utilize this feature; my invention wakes the zero power consumption circuit with switching off load up with passive device, makes the autophage of this battery be down to limit. Meanwhile, external fan-out capability elevated height. This battery was also provided with stream/short circuit protection module; adopting long term overloading protection IC circuit 2 (NTC03), when load is chronically at overload, IC2 can make output electric current decline; alleviate load, thus protection is due to the generation of overload heating.
Fig. 2 gives the corresponding particular circuit configurations figure of each module in Fig. 1, specifically includes that intelligence charge/discharge control circuit structure chart, lithium battery protection circuit structure chart, automatic control boost circuit structure figure, crosses stream/short-circuit protection circuit structure chart, again repeat no more.
Highlight passive device in conjunction with Fig. 3 and wake the zero power consumption circuit with switching off load up, i.e. passive circuit automaton. The present invention adopt conventional crystal triode as output loading with/without control, in this circuit, the BE knot of crystal triode (IC4) is connected in load circuit, the dormancy that its colelctor electrode C receives U2 by the first resistance R6 current-limiting resistance controls end 4 foot, when not connecing load, equal to BE knot open circuit, Ib=0, IC4 self does not consume power. With R8 clamped effect over the ground, 4 feet of U2 are low level, according to the operation principle of U2 and parameter, are in dormancy (electric current��3.5uA), when load on this battery output band, Ib �� 0, according to audion principle IC �� 0, this IC electric current makes 4 feet of U2 be high level by the bleeder circuit being made up of R6, R8, then DC/DC circuit start work, to load output voltage, it is achieved that automatically detect load, control the automatic work of DC/DC circuit. As can be seen here, outwards not exporting electricity, only the maintenance consumption of denier in dormancy, whole circuit wastage in bulk or weight��3.5uA, less than the self discharge of lithium cell.
Existing instrument battery is simply in series by a few economize on electricity cores, without any control circuit; Without charging socket, taking off during charging electrical equipment, therefore equipment wants power-off, it is impossible to continuous operation; Charging needs to put into special charger charging, wastes resource; Output voltage is unstable, changes with load and electricity consumption time; Uncontrollable battery core is connected, and in charge/discharge process, power energy allocation is irregular, causes indivedual battery core super-charge super-discharge, is greatly shortened the battery core life-span, even damages battery; During battery short circuit or during continuous discharge, it is possible to heating, serious even breaking out of fire; There is no any protection circuit. And the intelligent integral of the present invention can fill instrument battery and is made up of monomer lithium cell and intelligent control circuit; Self-carried USB charging socket, available handsets charger charges, and versatility is good, it is not necessary to separately purchase charger; Need not take down from electrical appliance during charging, it is ensured that electrical equipment not power-off; Output voltage stabilization, has load and automatically detects and feedback control circuit, it is ensured that output voltage stabilization; There is multiple protective circuit: stream/short-circuit protection crossed by outfan, lithium cell overcharges/Cross prevention, output voltage can be automatically shut down when short circuit; Controlled intelligent charge/discharge controls, and makes single battery core be absent from power energy allocation problem, does not result in and overcharge/overdischarge phenomenon, safe and reliable. The more important thing is, the instrument battery of the present invention, with the passive circuit automaton of extremely low power dissipation, makes battery not consume electricity in dormancy overshoot, thus being applied in instrument by battery electric quantity to a greater extent. This instrument battery cost performance is high, and energy foot, self discharge is little, and the resting period is long.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described. Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention. Claimed scope is defined by appending claims and equivalent thereof.
Claims (10)
1. a passive circuit automaton, it is characterised in that this circuit includes crystal triode, the first resistance, the second resistance, DC/DC automatic control boosting/dormancy chip (U2);Controlled respectively by the turn-on and turn-off of crystal triode access and disconnect output loading; The emitter junction of crystal triode, is connected in series in output loading loop, and its base stage connects battery output cathode, and the dormancy that colelctor electrode is connected to DC/DC automatic control boosting/dormancy chip (U2) by the first resistance controls end, and the first resistance plays metering function; Second resistance is connected between the junction point of battery output negative pole and the first resistance and dormancy control end.
2. a kind of passive circuit automaton according to claim 1, it is characterized in that, when not connecing output loading, emitter junction is opened a way, base current (Ib) is zero, due to the clamped effect of the second resistance, it is low level that the dormancy of DC/DC automatic control boosting/dormancy chip (U2) controls end, then control DC/DC automatic control boosting/dormancy chip (U2) and be in dormancy; When accessing output loading, base current (Ib) is not zero, then the collector current (Ic) of crystal triode is not zero, collector current is by the bleeder circuit of the first resistance and the second resistance composition, it is high level that the dormancy making DC/DC automatic control boosting/dormancy chip (U2) controls end, then control DC/DC automatic control boosting/dormancy chip (U2) and start work, to load output voltage.
3. a kind of passive circuit automaton according to claim 2, it is characterised in that described DC/DC automatic control boosting/dormancy chip had stream, overheat protective function.
4. a kind of passive circuit automaton according to claim 3, it is characterised in that described DC/DC automatic control boosting/dormancy chip selects SX1308 chip.
5. an intelligent integral can fill instrument battery, it is characterised in that this instrument battery includes lithium cell, built-in intelligence control circuit, and with standard USB charging socket, charging electrode separates with output electrode; Described built-in intelligence control circuit comprises the passive circuit automaton in any one of claim 14.
6. a kind of intelligent integral as claimed in claim 5 can fill instrument battery, it is characterized in that, described built-in intelligence control circuit includes lithium electricity charge/discharge management module, and the charge/discharge of this battery is managed module by the lithium electricity charge/discharge of described built-in intelligence control circuit and is controlled.
7. a kind of intelligent integral according to claim 6 can fill instrument battery, it is characterized in that, described lithium electricity charge/discharge management module includes intelligence lithium electricity charge/discharge managing chip, and this chip has current detecting, low pressure turns off, automatically fills/stops and low current mode/shutdown mode, thermal feedback automatically controls charging current function and current charge and automatic stop function function drop in Full Charge Capacity.
8. a kind of intelligent integral according to claim 7 can fill instrument battery, it is characterised in that this intelligence lithium electricity charge/discharge managing chip selects QX4045 chip.
9. a kind of intelligent integral according to claim 5 or 8 can fill instrument battery; it is characterized in that; described built-in intelligence control circuit also includes dual-protection circuit; electric discharge and overdischarge to battery lithium battery core are protected, and cut off the power supply of lithium cell when lithium cell electric discharge terminates or discharge current is excessive.
10. a kind of intelligent integral according to claim 9 can fill instrument battery, it is characterised in that built-in intelligence control circuit also includes long term overloading protection circuit, under long-term overload, reduces output electric current, it is prevented that battery generates heat because of overload.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610076803.4A CN105656121B (en) | 2016-02-03 | 2016-02-03 | A kind of passive circuit automaton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610076803.4A CN105656121B (en) | 2016-02-03 | 2016-02-03 | A kind of passive circuit automaton |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105656121A true CN105656121A (en) | 2016-06-08 |
| CN105656121B CN105656121B (en) | 2018-01-16 |
Family
ID=56488385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610076803.4A Active CN105656121B (en) | 2016-02-03 | 2016-02-03 | A kind of passive circuit automaton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105656121B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817398A (en) * | 2020-07-21 | 2020-10-23 | 惠州市佰铭诚电子有限公司 | Lithium battery output control circuit and multi-string lithium battery protection board |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060119323A1 (en) * | 2004-12-03 | 2006-06-08 | Don Reed | Temperature responsive charging control circuit |
| CN101114725A (en) * | 2007-08-28 | 2008-01-30 | 许凤山 | Online passive maintenance device for high-capacity sealed lead-acid battery |
| CN201386973Y (en) * | 2009-04-24 | 2010-01-20 | 盐城金意光电科技有限公司 | Outdoor advertising LED lamp lighting device without power source |
-
2016
- 2016-02-03 CN CN201610076803.4A patent/CN105656121B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060119323A1 (en) * | 2004-12-03 | 2006-06-08 | Don Reed | Temperature responsive charging control circuit |
| CN101114725A (en) * | 2007-08-28 | 2008-01-30 | 许凤山 | Online passive maintenance device for high-capacity sealed lead-acid battery |
| CN201386973Y (en) * | 2009-04-24 | 2010-01-20 | 盐城金意光电科技有限公司 | Outdoor advertising LED lamp lighting device without power source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817398A (en) * | 2020-07-21 | 2020-10-23 | 惠州市佰铭诚电子有限公司 | Lithium battery output control circuit and multi-string lithium battery protection board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105656121B (en) | 2018-01-16 |
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Denomination of invention: A passive circuit automatic control device Effective date of registration: 20220819 Granted publication date: 20180116 Pledgee: Zhejiang Taizhou Jiaojiang Rural Commercial Bank Co.,Ltd. Baiyun sub branch Pledgor: TAIZHOU YIXIU INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2022330001834 |