CN206742931U - The more power charging automatic switching circuits of charger baby - Google Patents
The more power charging automatic switching circuits of charger baby Download PDFInfo
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- CN206742931U CN206742931U CN201720381975.2U CN201720381975U CN206742931U CN 206742931 U CN206742931 U CN 206742931U CN 201720381975 U CN201720381975 U CN 201720381975U CN 206742931 U CN206742931 U CN 206742931U
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- charger baby
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- charging
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of more power charging automatic switching circuits of charger baby, for fast charge, trickle charge each the defects of, provide following technical scheme, transformer circuit includes primary coil and the secondary coil of at least two different numbers of turn, one of secondary coil is coupled with the pulse charging circuit for being charged to charger baby battery, other secondary coils are respectively coupled to turn on the on-off circuit to be charged to charger baby battery in response to the pulse signal of pulse charging circuit, temperature in detection charger baby is coupled between pulse charging circuit and on-off circuit and is less than fiducial temperature with the temperature sensing circuit of output switching signal and the switching circuit for switching to pulse charging circuit directly to charge so that on-off circuit to be charged indirectly in response to switching signal；When the temperature in charger baby is less than fiducial temperature, fast charge is automatically switched to from trickle charge, increases charge power, charging rate faster, after temperature rise back switches to trickle charge to reduce caloric value, charging is safer.
Description
Technical field
A kind of charger baby is the utility model is related to, more specifically, it relates to which a kind of more power of charger baby charge from turn
Change circuit.
Background technology
Portable power source（Mobile Power Pack, MPP）, also it is charger baby, traveling charger etc..One kind collection power supply and
Charge function can charge whenever and wherever possible in the portable charger of one to digital equipments such as mobile phone, tablet personal computers.Typically by
Lithium cell（Or dry cell, it is more rare）It is convenient to use as charge storage unit.
In the prior art, common charging modes have constant-voltage charge and existing rank after constant-voltage charge, crossing current charging, first constant current
The more conventional pulse charge of section, before fast charge technology maturation, using trickle charge technology, trickle charge technology is used to charge battery
Power is small, small to cell damage, is advantageous to extend the service life of battery, and fast charge can then shorten charging duration, save and use
The time of person.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of more power chargings of charger baby certainly
Dynamic change-over circuit, has the advantages of more charge powers automatically switch.
To achieve the above object, the utility model provides following technical scheme：
A kind of more power charging automatic switching circuits of charger baby, including the transformer circuit that civil power is depressured, the transformation
Device circuit includes primary coil and the secondary coil of at least two different numbers of turn, one of them described secondary coil are coupled with use
In the pulse charging circuit to be charged to charger baby battery, other described secondary coils have been respectively coupled in response to pulse charge
The pulse signal of circuit turns on the on-off circuit to be charged to charger baby battery, the pulse charging circuit and on-off circuit
Between be coupled with detection charger baby in temperature less than fiducial temperature with the temperature sensing circuit of output switching signal and in response to
The switching circuit that switching signal switches to pulse charging circuit directly to charge so that on-off circuit to be charged indirectly.
Preferably, it is coupled between the primary coil and pulse charging circuit and is changed into the first whole of direct current for that will exchange
Current circuit.
Preferably, it is coupled between the primary coil and on-off circuit for the second rectified current for being changed into direct current will to be exchanged
Road.
Using above-mentioned technical proposal, share two kinds of fast charge, trickle charge charging modes, trickle charge mode be civil power through primary coil,
First secondary coil be depressured, then after exchange is converted into direct current by the first rectification circuit by pulse charging circuit directly to charging
Precious battery is charged, and fast charge charging modes are depressured for civil power through primary coil, second subprime coil, then through the second rectified current
After exchange is converted into direct current by road, the continuous on, off of pulse signal that is sent in response to impulse circuit by on-off circuit with
Charged to charger baby battery, when the temperature that temperature sensing circuit is detected in charger baby is less than fiducial temperature, temperature inspection
Slowdown monitoring circuit output switching signal, switching circuit by the first parallel connection of secondary windings to second subprime coil, become in response to switching signal
Voltage after transformer circuits decompression is raised so as to increase the charge power to charger baby, is realized and is automatically switched to soon from trickle charge
Fill, increase charge power, charging rate faster, while back switches to trickle charge to reduce caloric value after temperature rise, filled
Electricity is safer.
Preferably, the pulse charging circuit includes resistance R1, diode VS, resistance R3, slide rheostat RP, biradical pole
Diode BT, resistance R4, resistance R2 and electric capacity C, wherein resistance R1 one end are coupled to the positive pole output of the first rectification circuit
End, the resistance R1 other end are coupled to slide rheostat RP sliding end and a fixing end simultaneously, and slide rheostat RP's is another
Double base diode BT emitter stage, while resistance R1 other end series resistance R3 are coupled to after one fixing end series resistance R2
Double base diode BT the second base stage is coupled to afterwards, and is coupled to after double base diode BT the first base series resistor R4
The cathode output end of one rectification circuit, while the first base stage output pulse signal of double base diode, double base diode BT
Emitter stage and the first rectification circuit negative pole between be coupled with electric capacity C, this external resistance R1 other end is coupled to diode VS
Negative electrode, diode VS anode is coupled to the negative pole of the first rectification circuit；
The temperature sensing circuit includes resistance R6 and thermistor RT, and the switching circuit includes resistance R5, NPN type
Triode VT1, relay KM, sustained diode 1 and the single-pole double-throw switch (SPDT) KM for being controlled by relay KM, resistance R6's
One end is coupled to the cathode output end of the first rectification circuit, and it is whole to be coupled to first after resistance R6 other end series thermal-sensitive resistance RT
The cathode output end of current circuit, the node that triode VT1 base stage is coupled between resistance R6 and thermistor RT are cut with receiving
Signal is changed, resistance R5 is coupled between triode VT base stage and colelctor electrode, triode VT colelctor electrode is coupled to the first rectification
The negative pole cathode output end of circuit, the negative pole that the first rectification circuit is coupled to after triode VT emitter stage SRE KM are defeated
Go out end, sustained diode 1 is connected in parallel on relay KM both ends；
The on-off circuit includes IGCT VT, and the positive pole that wherein IGCT VT anode is coupled to the second rectification circuit is defeated
Go out end, IGCT VT negative electrode is coupled to the positive pole of charger baby battery, and the negative pole of charger baby battery is coupled to the second rectification circuit
Cathode output end, single-pole double-throw switch (SPDT) KM not moved end is coupled to the zero line input of the second rectification circuit, and single-pole double throw is opened
The moved end for closing KM is coupled to the zero line side of second subprime coil, and single-pole double-throw switch (SPDT) KM another moved end is coupled to first level
The zero line of coil, the zero line of the second subprime coil are coupled to the live wire of the first secondary coil.
Using above-mentioned technical proposal, mains supply after transformer circuit is depressured again through the first rectifier circuit rectifies, then
Charged after direct current is delivered into electric capacity C after resistance R1, slide rheostat RP, resistance R2 to electric capacity C, when electric capacity C both ends
When voltage Uc is equal to the voltage Ubb between h times of the second base stage and the first base stage, double base diode BT is turned on, then electric capacity C
Start the voltage Ubb that electric discharge makes Uc be less than between h times of the second base stage and the first base stage, double base diode BT cut-offs；When filling
When temperature is less than fiducial temperature in electric treasured, resistance R6 voltage signals corresponding with temperature level with what is exported after thermistor partial pressure
The threshold voltage of triode VT1 conductings corresponding less than with fiducial temperature, triode VT1 cut-offs, relay power-off make hilted broadsword double
Throw switch KM is switched to charger baby anode, and double base diode BT conductings are so as to the direct current at the first rectification circuit anode end
Directly charged to charger baby battery after resistance R1, resistance R3, IGCT VT, resistance R4, double base diode BT cut-off so as to
Stop charging to charger baby battery, do not stop discharge and recharge with electric capacity C, and then realize and charged to charger baby battery impulse；When
When temperature is less than fiducial temperature in charger baby, resistance R6 voltage letters corresponding with temperature level with what is exported after thermistor partial pressure
Number it is more than the threshold voltage of triode VT1 corresponding with fiducial temperature conductings, triode VT1 conductings, relay KM, which is obtained, electric makes list
Double-pole double throw switch KM is switched to on-off circuit, provides a variety of charging selections to people, adjusts slide rheostat RP access in addition
Resistance can adjust the electric capacity C discharge and recharge time, can also adjust the charge power to charger baby battery as needed.
Preferably, the positive pole of the charger baby battery is coupled with the charging instruction charged for indicating charger baby battery
Portion.
Preferably, the charging instruction unit includes the ammeter A being coupled between charger baby positive pole and IGCT VT.
Using above-mentioned technical proposal, user can learn whether charger baby is charging by ammeter A, help to keep away
Exempt from the inconvenience brought to user of not charged in time caused by non-grafting well.
In summary, the utility model has the advantages that：
When the temperature that temperature sensing circuit is detected in charger baby is less than fiducial temperature, temperature sensing circuit output switching
Signal, switching circuit in response to switching signal by the first parallel connection of secondary windings to second subprime coil, after transformer circuit decompression
Voltage raise so as to increasing the charge power to charger baby, realize from trickle charge and automatically switch to fast charge, increase charging work(
Rate, charging rate faster, while back switch to trickle charge to reduce caloric value after temperature rise, charged safer.
Brief description of the drawings
Fig. 1 is the theory diagram of the more power charging automatic switching circuits of charger baby；
Fig. 2 is the circuit theory diagrams of the more power charging automatic switching circuits of charger baby.
In figure：1st, transformer circuit；21st, the first secondary coil；22nd, second subprime coil；31st, the first rectification circuit；32、
Second rectification circuit；4th, impulse circuit；5th, on-off circuit；6th, switching circuit；7th, charger baby battery；71st, charge instruction unit；8th, it is warm
Degree detection circuit.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the utility model is described in detail.
A kind of more power charging automatic switching circuits of charger baby, reference picture 1, including the transformer circuit 1 that civil power is depressured,
Transformer circuit 1 includes primary coil, the first secondary coil 21 and second subprime coil 22 of two different numbers of turn, for the first time
Level coil 21 is coupled with the pulse charging circuit for being charged to charger baby battery 7, and second subprime coil 22 is coupled with sound
On-off circuit 5 to be charged to charger baby battery 7, pulse charging circuit should be turned in the pulse signal of pulse charging circuit
Temperature in detection charger baby is coupled between on-off circuit 5 and is less than fiducial temperature with the temperature sensing circuit of output switching signal
8 and in response to switching signal so that by on-off circuit 5, charging switches to the switching circuit that pulse charging circuit directly charges indirectly
6。
Reference picture 1, it is coupled between primary coil and pulse charging circuit for the first rectification for being changed into direct current will to be exchanged
Circuit 31, it is coupled between primary coil and on-off circuit 5 for the second rectification circuit 32 for being changed into direct current will to be exchanged.
Mains supply is after the decompression of transformer circuit 1 again through the rectification of the first rectification circuit 31 to be carried out to charger baby battery 7
Charging, when switching circuit 6 switches to pulse charging circuit charging, now impulse circuit 4 is straight with the charging rate of smaller power
Connect and charged to charger baby battery 7, when switching circuit 6, which switches to on-off circuit 5, to be charged, on-off circuit 5 in response to
The continuous ON-OFF of pulse signal of impulse circuit 4, is charged with larger charge power to charger baby battery 7, temperature
Detection circuit 8 detects and compares the size of temperature in charger baby whether be more than fiducial temperature, and temperature is more than in charger baby
Output switching signal during fiducial temperature, switching circuit 6 is in response to switching signal so that by on-off circuit 5, charging switches to pulse indirectly
Charging circuit directly charges, and so as to basis, can switch different charge powers, the selection being convenient for people to as needed.
Reference picture 2, pulse charging circuit include resistance R1, diode VS, resistance R3, slide rheostat RP, biradical pole two
Pole pipe BT, resistance R4, resistance R2 and electric capacity C, wherein resistance R1 one end are coupled to the positive pole output of the first rectification circuit 31
End, the resistance R1 other end are coupled to slide rheostat RP sliding end and a fixing end simultaneously, and slide rheostat RP's is another
Double base diode BT emitter stage, while resistance R1 other end series resistance R3 are coupled to after one fixing end series resistance R2
Double base diode BT the second base stage is coupled to afterwards, and is coupled to after double base diode BT the first base series resistor R4
The cathode output end of one rectification circuit 31, while the first base stage output pulse signal of double base diode, double base diode
Electric capacity C is coupled between the negative pole of BT emitter stage and the first rectification circuit 31, this external resistance R1 other end is coupled to two poles
Pipe VS negative electrode, diode VS anode are coupled to the negative pole of the first rectification circuit 31；
Temperature sensing circuit 8 includes resistance R6 and thermistor RT, and switching circuit 6 includes resistance R5, three poles of NPN type
Pipe VT1, relay KM, sustained diode 1 and the single-pole double-throw switch (SPDT) KM for being controlled by relay KM, resistance R6 one end coupling
The cathode output end of the first rectification circuit 31 is connected to, the first rectified current is coupled to after resistance R6 other end series thermal-sensitive resistance RT
The cathode output end on road 31, triode VT1 base stage are coupled to the node between resistance R6 and thermistor RT to receive switching
Signal, is coupled with resistance R5 between triode VT base stage and colelctor electrode, triode VT colelctor electrode is coupled to the first rectified current
The negative pole cathode output end on road 31, the negative pole of the first rectification circuit 31 is coupled to after triode VT emitter stage SRE KM
Output end, sustained diode 1 are connected in parallel on relay KM both ends；
On-off circuit 5 includes IGCT VT, and the positive pole that wherein IGCT VT anode is coupled to the second rectification circuit 32 is defeated
Go out end, IGCT VT negative electrode is coupled to the positive pole of charger baby battery 7, and single-pole double-throw switch (SPDT) KM not moved end is coupled to biradical pole
For diode BT the first base stage with return pulse signal, a single-pole double-throw switch (SPDT) KM moved end is coupled to IGCT VT control
Pole, the negative pole of charger baby battery 7 are simultaneously coupled to the cathode output end and the second rectification circuit 32 of the first rectification circuit 31
Cathode output end, single-pole double-throw switch (SPDT) KM another moved end are coupled to IGCT VT negative electrode.
Mains supply through transformer circuit 1 decompression after again through the rectification of the first rectification circuit 31, then by direct current through resistance
Charged after electric capacity C is delivered to after R1, slide rheostat RP, resistance R2 to electric capacity C, when the voltage Uc at electric capacity C both ends is equal to h times
During voltage Ubb between the second base stage and the first base stage, double base diode BT conductings, then electric capacity C, which starts electric discharge, makes Uc small
Voltage Ubb between h times of the second base stage and the first base stage, double base diode BT end；When temperature is less than in charger baby
During fiducial temperature, voltage signal corresponding with temperature level is less than and fiducial temperature resistance R6 with what is exported after thermistor partial pressure
The threshold voltage of corresponding triode VT1 conductings, triode VT1 cut-offs, relay power-off are switched to single-pole double-throw switch (SPDT) KM
The positive pole of charger baby battery 7, double base diode BT turn on the direct current so as to the positive terminal of the first rectification circuit 31 through resistance R1, electricity
Directly charged to charger baby battery 7 after resistance R3, IGCT VT, resistance R4, double base diode BT ends so as to stop to charging
Precious battery 7 charges, and does not stop discharge and recharge with electric capacity C, and then realize and give the pulse charge of charger baby battery 7；When in charger baby
When temperature is less than fiducial temperature, resistance R6 with what is exported after thermistor partial pressure voltage signal corresponding with temperature level be more than with
The threshold voltage that triode VT1 corresponding to fiducial temperature is turned on, triode VT1 conductings, relay, which obtains, electric makes single-pole double-throw switch (SPDT)
KM is switched to on-off circuit 5, and IGCT VT is turned on after receiving pulse signal, cut-off is changed to be charged to charger baby battery 7, by
It is different in the number of turn of secondary coil, so on-off circuit 5 can carry out the charging of different charge powers to charger baby battery 7, give
People provide a variety of charging selections, and the electric capacity C discharge and recharge time can be adjusted by adjusting slide rheostat RP access resistance in addition,
The charge power to charger baby battery 7 can also be adjusted as needed.
Reference picture 2, the positive pole of charger baby battery 7 are coupled with the charging instruction charged for indicating charger baby battery 7
Portion 71, charging instruction unit 71 include the ammeter A being coupled between charger baby positive pole and IGCT VT, and user can pass through electricity
Flow table A learns whether charger baby is charging, and helps avoid not charging what is brought to user in time caused by non-grafting well
Inconvenience.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of more power charging automatic switching circuits of charger baby, including the transformer circuit (1) that civil power is depressured, its feature
It is：The transformer circuit (1) includes primary coil and the first secondary coil (21), the second subprime line of two different numbers of turn
Enclose (22), wherein less the first secondary coil (21) of the number of turn is coupled with the pulse charging circuit for producing pulse signal, circle
The more second subprime coil (22) of number is coupled with to turn in response to pulse signal and opened with what is charged to charger baby battery (7)
Powered-down road (5), temperature in detection charger baby is coupled between the pulse charging circuit and on-off circuit (5) and is less than fiducial temperature
The first secondary coil (21) is connected serially to second with the temperature sensing circuit (8) of output switching signal and in response to switching signal
Secondary coil (22) gives the switching circuit (6) of on-off circuit (5) power supply.
2. the more power charging automatic switching circuits of charger baby according to claim 1, it is characterized in that：First secondary wire
Circle (21) is coupled between pulse charging circuit for will exchange the first rectification circuit (31) for being changed into direct current.
3. the more power charging automatic switching circuits of charger baby according to claim 2, it is characterized in that：The second subprime line
It is coupled between circle (22) and on-off circuit (5) for the second rectification circuit (32) for being changed into direct current will to be exchanged.
4. the more power charging automatic switching circuits of charger baby according to claim 3, it is characterized in that：
The pulse charging circuit includes resistance R1, diode VS, resistance R3, slide rheostat RP, double base diode BT, electricity
Resistance R4, resistance R2 and electric capacity C, wherein resistance R1 one end are coupled to the cathode output end of the first rectification circuit (31), resistance
The R1 other end is coupled to slide rheostat RP sliding end and a fixing end, slide rheostat RP another fixing end simultaneously
Double base diode BT emitter stage is coupled to after series resistance R2, while is coupled to after resistance R1 other end series resistance R3
Double base diode BT the second base stage, the first rectified current is coupled to after double base diode BT the first base series resistor R4
The cathode output end on road (31), while the first base stage output pulse signal of double base diode, double base diode BT hair
Electric capacity C is coupled between the negative pole of emitter-base bandgap grading and the first rectification circuit (31), this external resistance R1 other end is coupled to diode VS
Negative electrode, diode VS anode is coupled to the negative pole of the first rectification circuit (31)；
The temperature sensing circuit (8), which includes resistance R6 and thermistor RT, the switching circuit (6), includes resistance R5, NPN
Triode VT1, relay KM, sustained diode 1 and the single-pole double-throw switch (SPDT) KM for being controlled by relay KM of type, resistance R6
One end be coupled to the cathode output ends of the first rectification circuit (31), be coupled to after resistance R6 other end series thermal-sensitive resistance RT
The cathode output end of first rectification circuit (31), triode VT1 base stage are coupled to the section between resistance R6 and thermistor RT
Point is coupled with resistance R5, triode VT colelctor electrode coupling to receive switching signal between triode VT base stage and colelctor electrode
It is whole that first is coupled to after the negative pole cathode output end of the first rectification circuit (31), triode VT emitter stage SRE KM
The cathode output end of current circuit (31), sustained diode 1 are connected in parallel on relay KM both ends；
The on-off circuit (5) includes IGCT VT, and wherein IGCT VT anode is being coupled to the second rectification circuit (32) just
Pole output end, IGCT VT negative electrode are coupled to the positive pole of charger baby battery (7), and the negative pole of charger baby battery (7) is coupled to
The cathode output end of two rectification circuits (32), single-pole double-throw switch (SPDT) KM not moved end are coupled to the zero line of the second rectification circuit (32)
Input, a single-pole double-throw switch (SPDT) KM moved end are coupled to the zero line side of second subprime coil (22), single-pole double-throw switch (SPDT) KM's
Another moved end is coupled to the zero line of the first secondary coil (21), and the zero line of the second subprime coil (22) is coupled to first level
The live wire of coil (21).
5. the more power charging automatic switching circuits of charger baby according to claim 4, it is characterized in that：The charger baby battery
(7) positive pole is coupled with for indicating the charging instruction unit (71) that charger baby battery (7) is charging.
6. the more power charging automatic switching circuits of charger baby according to claim 5, it is characterized in that：The charging instruction unit
(71) the ammeter A being coupled between charger baby positive pole and IGCT VT is included.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381975.2U CN206742931U (en) | 2017-04-12 | 2017-04-12 | The more power charging automatic switching circuits of charger baby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381975.2U CN206742931U (en) | 2017-04-12 | 2017-04-12 | The more power charging automatic switching circuits of charger baby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206742931U true CN206742931U (en) | 2017-12-12 |
Family
ID=60559975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720381975.2U Expired - Fee Related CN206742931U (en) | 2017-04-12 | 2017-04-12 | The more power charging automatic switching circuits of charger baby |
Country Status (1)
| Country | Link |
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| CN (1) | CN206742931U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066938A (en) * | 2018-08-26 | 2018-12-21 | 楼夏春 | Multi-pipe pin two-way follows adjustable moving power module |
| CN113394979A (en) * | 2020-03-12 | 2021-09-14 | Oppo广东移动通信有限公司 | Power supply device and charging control method |
-
2017
- 2017-04-12 CN CN201720381975.2U patent/CN206742931U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066938A (en) * | 2018-08-26 | 2018-12-21 | 楼夏春 | Multi-pipe pin two-way follows adjustable moving power module |
| CN113394979A (en) * | 2020-03-12 | 2021-09-14 | Oppo广东移动通信有限公司 | Power supply device and charging control method |
| WO2021179938A1 (en) * | 2020-03-12 | 2021-09-16 | Oppo广东移动通信有限公司 | Power supply device and charging control method |
| CN113394979B (en) * | 2020-03-12 | 2023-11-17 | Oppo广东移动通信有限公司 | Power supply device and charging control method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20210412 |
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| CF01 | Termination of patent right due to non-payment of annual fee |