CN102522799A - Mobile-terminal power supply - Google Patents
Mobile-terminal power supply Download PDFInfo
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- CN102522799A CN102522799A CN201110455534XA CN201110455534A CN102522799A CN 102522799 A CN102522799 A CN 102522799A CN 201110455534X A CN201110455534X A CN 201110455534XA CN 201110455534 A CN201110455534 A CN 201110455534A CN 102522799 A CN102522799 A CN 102522799A
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- lithium
- ion battery
- power supply
- portable terminal
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Abstract
The invention discloses a mobile-terminal power supply, which comprises a lithium-ion battery pack and a DC-DC (Direct Current-Direct Current) booster, wherein the lithium-ion battery pack is formed by connecting a plurality of lithium-ion battery parallel packs in series, and each lithium-ion battery parallel pack comprises a plurality of lithium-ion batteries; a 28V direct-current voltage is provided for a mobile-terminal 10W power amplifier based on a Beidou satellite after the voltage output by the lithium-ion battery pack is boosted by the DC-DC booster; because the lithium-ion batteries have better capacity and volume ratios, the mobile-terminal power supply disclosed by the invention has the advantages of small size, light weight but long continuous usage time; and in addition, because a battery-monitoring circuit is added between the lithium-ion battery pack and the DC-DC booster, the charge and the discharge of the lithium-ion battery pack can be switched, the overcharge and the overdischarge of the lithium-ion batteries can be avoided, and the using period of the mobile-terminal power supply is improved.
Description
Technical field
The present invention relates to the electronic communication equipment technical field, relate in particular to a kind of for the portable terminal power supply of power supply is provided based on the portable terminal 10W power amplifier of big-dipper satellite.
Background technology
Current mobile communication equipment all adopts the power supply source of battery as equipment; In order to guarantee portability of equipment and mobility; The general content volume that all adopts is than best lithium ion battery, and the mobile phone of using always like us, GPS, marine satellite phone etc. all adopt lithium battery as airborne power supply.Because the repeating power of L-band satellite is significantly less than the traditional communication satellite; Therefore our communication terminal device not only will be handled extremely faint reception signal and also must possess powerful transmitting power; Simultaneously because the restriction of the repeating power of L-band satellite; To compression, the decompression of communication speech data, the complexity of data processing such as coding and decoding must adopt ultra-large dsp chip to accomplish data processing also much larger than general communication equipment.More than 2 be doomed L-band satellite mobile communication portable mobile termianl and be not only and a kind ofly possess and the terminal equipment of small-signal disposal ability, also be a high-power current consuming apparatus simultaneously.Guarantee that this terminal can both operate as normal under various complex environments; L-band satellite mobile communication portable mobile termianl power supply must possess long continuous service time, organize the big electric current output of voltage, utmost point low noise and ripple more; In the prior art; Will realize above-mentioned purpose with lithium battery as power supply source, what equipment volume and weight all can be very is big.
Summary of the invention
The purpose of this invention is to provide a kind of portable terminal power supply, the portable terminal 10W power amplifier that is used to based on big-dipper satellite provides power supply, but the output 28V high-voltage large current of its low noise and low ripple, volume and weight are little, and service time is long continuously.
In order to realize the foregoing invention purpose; The invention provides a kind of portable terminal power supply; Comprise lithium ion battery group and DC-DC stepup transformer, wherein: said lithium ion battery group is in series by a plurality of lithium batteries and joint group, and each lithium battery and joint group comprise many lithium batteries; After the boost in voltage of said DC-DC stepup transformer with said lithium ion battery group output, offer said portable terminal based on big-dipper satellite.
Preferably, said lithium ion battery group is in series by four lithium batteries and joint group, and each lithium battery and joint group comprise eight lithium batteries.
Preferably, said DC-DC stepup transformer is the 28V stepup transformer, and the boost in voltage that is used for the lithium ion battery group is exported is to 28V.
Preferably, single capacity of said lithium battery is 2600mAH.
Preferably, said DC-DC stepup transformer is pressed one transducer LT3780 for the DC-DC ascending, descending.
Preferably; Said portable terminal power supply also comprises the battery monitoring circuit that is connected between said lithium ion battery group and the said DC-DC stepup transformer; Said battery monitoring circuit comprises the battery cell monitoring chip and the pipe that opens the light, and said battery monitoring circuit is used for said lithium ion battery group discharged and recharged to be switched.
Wherein, each lithium battery in the said lithium ion battery group of said battery cell monitoring chip detection and the voltage of joint group; When any lithium battery in detecting said lithium ion battery group and the voltage of joint group were lower than preset low protection threshold value, said battery cell monitoring chip output control signal was cut off discharge loop; When any lithium battery in detecting said lithium ion battery group and the voltage of joint group were higher than preset height protection threshold value, said battery cell monitoring chip output control signal was cut off charge circuit.
Preferably, said preset low protection threshold value is 2.3V, and said preset height protection threshold value is 4.2V.
Compared with prior art, the present invention has following beneficial effect:
Lithium ion battery group in the portable terminal power supply of the present invention is in series by a plurality of lithium batteries and joint group; And with after the boost in voltage of DC-DC stepup transformer with said lithium ion battery group output; Offer said portable terminal 10W power amplifier and use, particularly be applicable to L, S-band satellite mobile communication portable mobile termianl based on big-dipper satellite based on big-dipper satellite.Because lithium ion battery possesses preferable capacity, volume ratio, make portable terminal power supply provided by the invention have the little weight of volume little but continuously service time long advantage; And after using the boost in voltage of DC-DC stepup transformer to the output of lithium ion battery group, its 28V direct voltage that needs can be provided for the portable terminal 10W power amplifier based on big-dipper satellite, and total current is less than 3A; In addition,, can discharge and recharge said lithium ion battery group and switch, can avoid over-charge of lithium battery electricity, overdischarge, improve the life cycle of portable terminal power supply owing between said lithium ion battery group and said DC-DC stepup transformer, increased battery monitoring circuit.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings:
Fig. 1 is a kind of structural representation of portable terminal power supply in the embodiment of the invention;
Fig. 2 is a kind of structural representation of lithium ion battery group in the embodiment of the invention portable terminal power supply;
Fig. 3 is a kind of circuit diagram of battery monitoring circuit in the embodiment of the invention portable terminal power supply.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Battery in the embodiment of the invention portable terminal power supply is selected key indexs such as the stream time of considering complete machine, volume, weight for use; Select lithium battery for use; Said portable terminal power supply comprises lithium ion battery group and DC-DC stepup transformer, and said lithium ion battery group is in series by a plurality of lithium batteries and joint group.Each lithium battery and joint group comprise many lithium batteries, and preferred, said lithium ion battery group is in series by four lithium batteries and joint group; Each lithium battery and joint group comprise eight lithium batteries, have 32 standard lithium ion batteries altogether, specifically can be referring to Fig. 2; Wherein but a lithium battery menu capacity is the lithium battery of 2600mAH, and at this moment, said lithium ion battery group nominal voltage is 14.8V; Actual effectively operating voltage range is between 13.4-17V; Said battery capacity is 20.8AH, and under the total current of complete machine 5A, the continuous operation of complete machine ability is more than 4 hours.After the boost in voltage of said DC-DC stepup transformer with said lithium ion battery group output; Offer said portable terminal based on big-dipper satellite; Said DC-DC stepup transformer can adopt selects for use efficient to press one transducer LT3780 up to 90% DC-DC ascending, descending; The mobile communication terminal 10W power amplifier that offers based on big-dipper satellite behind its boost in voltage to 28V direct voltage with the output of lithium ion battery group is used, and total current is less than 3A.
Referring to Fig. 1; Portable terminal power supply in the embodiment of the invention is except comprising lithium ion battery group 1 and DC-DC stepup transformer 3; Can also comprise the battery monitoring circuit 2 that is connected between said lithium ion battery group 1 and the said DC-DC stepup transformer 3; The circuit diagram of said battery monitoring circuit can be referring to Fig. 3; Said battery monitoring circuit 2 as shown in the figure comprises the battery cell monitoring chip U1 and the pipe that opens the light, and said battery monitoring circuit is used for said lithium ion battery group discharged and recharged to be switched, and does not overcharge or overdischarge to protect battery pack.Concrete example can be referring to Fig. 3; The V1 of battery cell monitoring chip U1, V2, V3, V4 pin connect B1, B2, B3, the B4 end of lithium ion battery group respectively among Fig. 3; Said pipe Q1 and the switching tube Q2 of opening the light is the P channel MOS tube; The OV end of battery cell monitoring chip U1 is through the grid of triode Q3 connection metal-oxide-semiconductor Q2, and the DCHG end of battery cell monitoring chip U1 connects the grid of metal-oxide-semiconductor Q1.Battery cell monitoring chip U1 detects each lithium battery and the voltage of joint group in the said lithium ion battery group; When any lithium battery in detecting said lithium ion battery group and the voltage of joint group are lower than preset low protection threshold value (like 2.3V); The OV pin output LOW voltage of said battery cell monitoring chip U1 is to the control grid of big electric current FET Q2; Q2 manages disconnection, cuts off discharge loop, thus the not overdischarge of protection battery pack; When any lithium battery in detecting said lithium ion battery group and the voltage of joint group are higher than preset height protection threshold value (like 4.2V); The DCHG pin output LOW voltage of said battery cell monitoring chip U1 is to the control grid of big electric current FET Q1; Q1 manages disconnection; Cut off charge circuit, thereby protect battery pack not overcharge, and overcurrent protection electricity stream ≧ 10A.
Need to prove; The pipe that opens the light in the embodiment of the invention can also be other switching tubes except the P channel MOS tube; Be other whens pipe of opening the light at the pipe that opens the light, control principle unanimity but control signal and battery cell monitoring chip U1 need do accommodation with the annexation of managing of opening the light.
Lithium ion battery group in the portable terminal power supply of the present invention is in series by a plurality of lithium batteries and joint group, and with after the boost in voltage of DC-DC stepup transformer with said lithium ion battery group output, offers said portable terminal 10W power amplifier based on big-dipper satellite and use.Because lithium ion battery possesses preferable capacity, volume ratio, make portable terminal power supply provided by the invention have the little weight of volume little but continuously service time long advantage; And after using the boost in voltage of DC-DC stepup transformer to the output of lithium ion battery group, its 28V direct voltage that needs can be provided for the portable terminal 10W power amplifier based on big-dipper satellite, and total current is less than 3A; In addition,, can discharge and recharge said lithium ion battery group and switch, can avoid over-charge of lithium battery electricity, overdischarge, improve the life cycle of portable terminal power supply owing between said lithium ion battery group and said DC-DC stepup transformer, increased battery monitoring circuit.
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (8)
1. portable terminal power supply, the portable terminal 10W power amplifier that is used to based on big-dipper satellite provides power supply, it is characterized in that, and said portable terminal power supply comprises lithium ion battery group and DC-DC stepup transformer, wherein:
Said lithium ion battery group is in series by a plurality of lithium batteries and joint group, and each lithium battery and joint group comprise many lithium batteries;
After the boost in voltage of said DC-DC stepup transformer with said lithium ion battery group output, offer said portable terminal based on big-dipper satellite.
2. portable terminal power supply as claimed in claim 1 is characterized in that, said lithium ion battery group is in series by four lithium batteries and joint group, and each lithium battery and joint group comprise eight lithium batteries.
3. portable terminal power supply as claimed in claim 2 is characterized in that, said DC-DC stepup transformer is the 28V stepup transformer, and the boost in voltage that is used for the lithium ion battery group is exported is to 28V.
4. portable terminal power supply as claimed in claim 3 is characterized in that, single capacity of said lithium battery is 2600mAH.
5. portable terminal as claimed in claim 3 is characterized in that, said DC-DC stepup transformer is pressed one transducer LT3780 for the DC-DC ascending, descending.
6. like each described portable terminal power supply in the claim 1 to 5; It is characterized in that; Said portable terminal power supply also comprises the battery monitoring circuit that is connected between said lithium ion battery group and the said DC-DC stepup transformer; Said battery monitoring circuit comprises the battery cell monitoring chip and the pipe that opens the light, and said battery monitoring circuit is used for said lithium ion battery group discharged and recharged to be switched.
7. portable terminal power supply as claimed in claim 6 is characterized in that, each lithium battery in the said lithium ion battery group of said battery cell monitoring chip detection and the voltage of joint group;
When any lithium battery in detecting said lithium ion battery group and the voltage of joint group were lower than preset low protection threshold value, said battery cell monitoring chip output control signal was cut off discharge loop;
When any lithium battery in detecting said lithium ion battery group and the voltage of joint group were higher than preset height protection threshold value, said battery cell monitoring chip output control signal was cut off charge circuit.
8. the portable terminal power supply described in claim 7 is characterized in that, said preset low protection threshold value is 2.3V, and said preset height protection threshold value is 4.2V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110455534XA CN102522799A (en) | 2011-12-30 | 2011-12-30 | Mobile-terminal power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110455534XA CN102522799A (en) | 2011-12-30 | 2011-12-30 | Mobile-terminal power supply |
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| CN102522799A true CN102522799A (en) | 2012-06-27 |
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| CN201110455534XA Pending CN102522799A (en) | 2011-12-30 | 2011-12-30 | Mobile-terminal power supply |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812479A (en) * | 2014-02-17 | 2014-05-21 | 科易达智能科技(苏州)有限公司 | Reed power-on switchover time-delay shutdown circuit |
| WO2018188006A1 (en) * | 2017-04-13 | 2018-10-18 | 广东欧珀移动通信有限公司 | Device to be charged and charging method |
| US11075542B2 (en) | 2017-04-07 | 2021-07-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to-be-charged, wireless charging apparatus, and wireless charging method |
| US11196306B2 (en) | 2017-04-07 | 2021-12-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged, wireless charging device and control method thereof |
| CN114137818A (en) * | 2021-12-03 | 2022-03-04 | 北斗天汇（北京）科技有限公司 | Beidou short message watch with novel power supply method |
| US11394250B2 (en) | 2017-04-07 | 2022-07-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless charging device, wireless charging method and device to be charged |
| US11689029B2 (en) | 2016-10-12 | 2023-06-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal with charging circuit and device thereof |
Citations (3)
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| JPH02290133A (en) * | 1989-04-28 | 1990-11-30 | Yuasa Battery Co Ltd | Portable power supply device |
| CN101272057A (en) * | 2007-03-19 | 2008-09-24 | 深圳市库仑科技有限公司 | Portable mobile charging power supply |
| CN201742109U (en) * | 2009-11-30 | 2011-02-09 | 成都林海电子有限责任公司 | Portable mobile terminal power supply |
-
2011
- 2011-12-30 CN CN201110455534XA patent/CN102522799A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02290133A (en) * | 1989-04-28 | 1990-11-30 | Yuasa Battery Co Ltd | Portable power supply device |
| CN101272057A (en) * | 2007-03-19 | 2008-09-24 | 深圳市库仑科技有限公司 | Portable mobile charging power supply |
| CN201742109U (en) * | 2009-11-30 | 2011-02-09 | 成都林海电子有限责任公司 | Portable mobile terminal power supply |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812479A (en) * | 2014-02-17 | 2014-05-21 | 科易达智能科技(苏州)有限公司 | Reed power-on switchover time-delay shutdown circuit |
| US11689029B2 (en) | 2016-10-12 | 2023-06-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal with charging circuit and device thereof |
| US11349350B2 (en) | 2017-04-07 | 2022-05-31 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless charging method, wireless charging device, wireless charging system and device to be charged |
| US11437848B2 (en) | 2017-04-07 | 2022-09-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless charging device, device to-be-charged, and method for controlling charging |
| US11196306B2 (en) | 2017-04-07 | 2021-12-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged, wireless charging device and control method thereof |
| US11233423B2 (en) | 2017-04-07 | 2022-01-25 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to-be-charged, wireless charging apparatus, and wireless charging method |
| US11539219B2 (en) | 2017-04-07 | 2022-12-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless charging device and method, and device to be charged |
| US11349349B2 (en) | 2017-04-07 | 2022-05-31 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless charging method, apparatus, system, and device to be charged |
| US11075542B2 (en) | 2017-04-07 | 2021-07-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to-be-charged, wireless charging apparatus, and wireless charging method |
| US11355963B2 (en) | 2017-04-07 | 2022-06-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to-be-charged, wireless charging apparatus, and wireless charging method |
| US11368050B2 (en) | 2017-04-07 | 2022-06-21 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless charging device, method, and device to-be-charged |
| US11394250B2 (en) | 2017-04-07 | 2022-07-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless charging device, wireless charging method and device to be charged |
| US11515736B2 (en) | 2017-04-07 | 2022-11-29 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless charging system, wireless charging device and wireless charging method |
| US11171499B2 (en) | 2017-04-13 | 2021-11-09 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged with multiple charging channels, charging method, and charging control circuit with multiple charging channels |
| US11631985B2 (en) | 2017-04-13 | 2023-04-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged with multiple charging channels, charging method, and charging control circuit with multiple charging channels |
| WO2018188006A1 (en) * | 2017-04-13 | 2018-10-18 | 广东欧珀移动通信有限公司 | Device to be charged and charging method |
| CN114137818A (en) * | 2021-12-03 | 2022-03-04 | 北斗天汇（北京）科技有限公司 | Beidou short message watch with novel power supply method |
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Application publication date: 20120627 |