CN207638557U - charge pump combination circuit, battery and portable device - Google Patents
charge pump combination circuit, battery and portable device Download PDFInfo
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- CN207638557U CN207638557U CN201721917503.0U CN201721917503U CN207638557U CN 207638557 U CN207638557 U CN 207638557U CN 201721917503 U CN201721917503 U CN 201721917503U CN 207638557 U CN207638557 U CN 207638557U
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- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 7
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
A kind of charge pump combination circuit of the utility model embodiment offer, battery and portable device, belong to charge pumping technique field.The charge pump combination circuit includes：Charge pump series circuit and charge pump parallel circuit, the charge pump series circuit and the charge pump parallel circuit in series, wherein, the charge pump series circuit includes at least a charge pump controlled by bypass control circuit, and two charge pumps in parallel by the control of enabled control circuit are included at least in the charge pump parallel circuit；It is short-circuit condition when charge pump in the charge pump series circuit is controlled by the bypass control circuit, is in working condition when not controlled by the bypass control circuit；Charge pump in the charge pump parallel circuit is in working condition when being controlled by the enabled control circuit, is off state when not controlled by the enabled control circuit, and the only one charge pump in the charge pump parallel circuit is in running order.The utility model embodiment is suitable for charge pump circuit.
Description
Technical field
The utility model is related to charge pumping technique field, more particularly to a kind of charge pump combination circuit, battery and portable
Formula equipment.
Background technology
Portable device is more and more used in daily life, efficient for this kind of equipment requirement power supply,
Electromagnetic interference is small.DC-DC converter is exactly unjustified supply voltage to be converted into the supply voltage for meeting design requirement.Electricity
Lotus pumps one kind as DC-DC converter, has many advantages, such as that at low cost, simple in structure, peripheral assembly is few, EMI is small.
As shown in Figure 1, the voltage transformation of charge pump circuit is achieved within two stages：
First stage, switch S1 and S2 are closed, and switch S3 and S4 are disconnected, and it is input voltage that capacitance C1, which is charged to its value,：
UC1+- UC1-=UC1=UIN；
Second stage, switch S3 and S4 are closed, and switch S1 and S2 are disconnected, because the voltage at the both ends capacitance C1 will not change immediately
Become, then output voltage is twice of input voltage.
I.e.：UOUT=UC1+UIN=2UIN,, the multiplication of voltage of voltage is realized by foregoing circuit.
But since the boosting multiple of above-mentioned charge pump circuit is fixed, if output voltage is poor compared with required voltage
When not larger, it is necessary to which pressure limiting circuit obtains required output voltage, causes the circuit operational efficiency relatively low, and boosting multiple is not
Flexibly.
Utility model content
The purpose of the utility model embodiment is to provide a kind of charge pump combination circuit, battery and portable device, solves
Charge the way is low in the prior art, and the multiple inflexible problem of boosting improves the operational efficiency of circuit so that defeated
It is more flexible to go out voltage multiplication.
To achieve the goals above, the utility model embodiment provides a kind of charge pump combination circuit, including：
Charge pump series circuit and charge pump parallel circuit, the charge pump series circuit and the charge pump parallel circuit
Series connection, wherein the charge pump series circuit includes at least a charge pump controlled by bypass control circuit, the charge pump
Two charge pumps in parallel by the control of enabled control circuit are included at least in parallel circuit；
It is short-circuit condition when charge pump in the charge pump series circuit is controlled by the bypass control circuit, not by institute
It is in working condition when stating bypass control circuit control；
Charge pump in the charge pump parallel circuit is in working condition when being controlled by the enabled control circuit, not by institute
It is off state when stating enabled control circuit control, and the only one charge pump in the charge pump parallel circuit is in work shape
State.
Further, it when being set in the charge pump series circuit there are one charge pump, is set in the charge pump parallel circuit
There are two when charge pump, the charge pump in the charge pump series circuit is the first charge pump, in the charge pump parallel circuit
Charge pump be respectively the second charge pump and third charge pump：
When first charge pump is controlled by the bypass control circuit, second charge pump or the third charge pump
When by the enabled control circuit control, the output voltage of the charge pump combination circuit is second charge pump or described the
The product of the boosting multiple and input voltage of tricharged pump；
When first charge pump is not by bypass control circuit control, second charge pump or the third charge
When pump is controlled by the enabled control circuit, the output voltage of the charge pump combination circuit be first charge pump with it is described
The boosting times of the boosting multiple of second charge pump and the product of input voltage or first charge pump and the third charge pump
The product of number and input voltage.
Further, the boosting multiple of the charge pump in the charge pump series circuit is 2 or 3 times.
Further, the boosting multiple of the charge pump in the charge pump parallel circuit is 2 or 3 times.
The utility model embodiment also provides a kind of battery, and the battery includes the charge pump combination circuit.
The utility model embodiment also provides a kind of portable device, and the portable device includes the charge pump group
Close circuit.
Through the above technical solutions, charge pump combination circuit includes charge pump series circuit and charge pump parallel circuit,
The charge pump series circuit and the charge pump parallel circuit in series, wherein the charge pump series circuit includes at least one
A charge pump controlled by bypass control circuit includes at least two in the charge pump parallel circuit by enabled control circuit control
The charge pump in parallel of system；It is short-circuit shape when charge pump in the charge pump series circuit is controlled by the bypass control circuit
State is in working condition when not controlled by the bypass control circuit；Charge pump in the charge pump parallel circuit is made by described
It can be in working condition when control circuit control, be off state when not controlled by the enabled control circuit, and the charge pump
Only one charge pump in parallel circuit is in running order.The utility model embodiment solves charge pump liter in the prior art
The disadvantage for pressing multiple not high, improves the multiple of output voltage.
The other feature and advantage of the utility model embodiment will give specifically in subsequent specific embodiment part
It is bright.
Description of the drawings
Attached drawing is further understood to the utility model embodiment for providing, an and part for constitution instruction,
With for explaining the utility model embodiment, but do not constituted to the utility model embodiment together with following specific implementation mode
Limitation.In the accompanying drawings：
Fig. 1 is the circuit diagram of charge pump circuit in the prior art；
Fig. 2 is a kind of structural schematic diagram for charge pump combination circuit that the utility model embodiment provides；
Fig. 3 is that the structure of charge pump series circuit in a kind of charge pump combination circuit that the utility model embodiment provides is shown
It is intended to；
Fig. 4 is the structural schematic diagram for another charge pump combination circuit that the utility model embodiment provides.
Specific implementation mode
The specific implementation mode of the utility model embodiment is described in detail below in conjunction with attached drawing.It should be understood that
It is that specific embodiment described herein is merely to illustrate and explains the utility model embodiment is not limited to this reality
Use new embodiment.
Fig. 2 is a kind of structural schematic diagram for charge pump combination circuit that the utility model embodiment provides.As shown in Fig. 2,
The charge pump combination circuit includes：
Charge pump series circuit 21 and charge pump parallel circuit 22, the charge pump series circuit 21 and the charge pump are simultaneously
Join circuit 22 to connect, wherein the charge pump series circuit 21 includes at least a charge controlled by bypass control circuit 211
212 are pumped, two charge pumps in parallel controlled by enabled control circuit 222 are included at least in the charge pump parallel circuit 22
221。
It is short-circuit shape when charge pump 212 in the charge pump series circuit 21 is controlled by the bypass control circuit 211
State is in working condition when not controlled by the bypass control circuit 211.
It is work shape when charge pump 221 in the charge pump parallel circuit 22 is controlled by the enabled control circuit 222
State is off state when not controlled by the enabled control circuit 222, and the only one electricity in the charge pump parallel circuit 22
Lotus pump is in running order.
For including at least two charge pumps in parallel by the control of enabled control circuit in the charge pump parallel circuit,
The selectivity of the output voltage of charge pump parallel circuit can be increased.For example, the boosting multiple difference of two charge pumps in parallel
For 2 times and 3 times, when it is 2 times to need the boosting multiple of the charge pump parallel circuit, the then enabled control circuit control 2
The charge pump of boosting multiple again, when it is 3 times to need the boosting multiple of the charge pump parallel circuit, then the enabled control
The charge pump of 3 times of boosting multiples of circuit control processed.It can be with the charge pump of other boosting multiples in parallel, for example, 4 times, 5 times
Etc., more flexible output voltage multiple can be realized together with the charge pump series circuit, it can be with by set of circuits
The output voltage for realizing a variety of boosting multiples, improves operational efficiency.
Wherein, the physical circuit form in bypass control circuit is not limited, as long as the charge pump can be controlled
The short circuit of charge pump in series circuit and working condition.
In addition, also not limited for enabling the physical circuit form in control circuit, as long as the charge can be controlled
The open circuit of charge pump in parallel connection of pumps circuit and working condition.
Wherein, it for charge pump combination circuit shown in Fig. 2, is set in the charge pump series circuit there are one charge pump,
There are two being set in the charge pump parallel circuit when charge pump, if setting the charge pump in the charge pump series circuit as the first electricity
Lotus pumps, and the charge pump in the charge pump parallel circuit is respectively the second charge pump and third charge pump, then when first electricity
Lotus pump is controlled by the bypass control circuit, and second charge pump or the third charge pump are by the enabled control circuit control
When processed, the output voltage of the charge pump combination circuit be second charge pump or the third charge pump boosting multiple with
The product of input voltage；Or when first charge pump not by the bypass control circuit control, second charge pump or
When the third charge pump is controlled by the enabled control circuit, the output voltage of the charge pump combination circuit is described first
Charge pump and the boosting multiple of second charge pump and the product of input voltage or first charge pump and third electricity
The product of the boosting multiple and input voltage of lotus pump.
In addition, for may include multiple charge pumps controlled by bypass control circuit in the charge pump series circuit,
As shown in figure 3, charge pump series circuit includes multiple charge pumps controlled by bypass control circuit, each charge pump has pair
The bypass control circuit answered controls it.For example, when the charge pump series circuit includes N number of charge pump, wherein
Charge pump by the control of corresponding bypass control circuit is i, and i<N is then in work shape in the charge pump series circuit
The charge pump of state is N-i, then total boosting multiple of the charge pump series circuit is N-i in running order electricity
The product of the boosting multiple of lotus pump.
Wherein, for that can also include multiple parallel connections by the control of enabled control circuit in the charge pump parallel circuit
Charge pump, but due to being only capable of in the charge pump parallel circuit there are one charge pump is in running order, so no matter described
How many a charge pumps in parallel in charge pump parallel circuit, in running order charge pump can only there are one, then the charge
Total boosting multiple of parallel connection of pumps circuit is the boosting multiple of in running order charge pump.
Charge pump circuit in compared to the prior art, since charge pump circuit in the prior art boosting multiple is fixed
, for example, being 3 times, input voltage 1.8V for the boosting multiple of existing charge pump circuit output, then output voltage is
5.4V, and actual circuit demand is 3.6V, then also needing to pressure limiting circuit is handled, and voltage is restricted to 3.6V from 5.4V, no
Extra voltage is only wasted, and operational efficiency is low, also reduces transfer efficiency.But by the utility model embodiment
The combination of charge pump series circuit and charge pump parallel circuit can realize output voltage as far as possible close to demand voltage,
For example, charge pump series circuit includes boosting multiple as 2 times of charge pump, charge pump parallel circuit includes boosting multiple point
Two charge pumps that Wei be 2 times and 3 times, when input voltage is 1.8V, demand voltage 3.6V, then by charge pump series circuit
In charge pump short circuit, it is 2 times of charge pump to control boosting multiple in charge pump parallel circuit, to obtain output voltage
For 3.6V；And when demand voltage is 7V, then the charge pump controlled in charge pump series circuit rises with charge pump parallel circuit
Pressure multiple is that 2 times of charge pump works at the same time, and it is 4 times, output voltage 7.2V to have obtained boosting multiple, close to demand voltage,
It only needs slightly to handle circuit and can be obtained demand voltage, transfer efficiency is higher than charge pump circuit in the prior art.
As it can be seen that more flexible output voltage can be obtained by above-mentioned charge pump series circuit and charge pump parallel circuit
Multiple.Pass through the charge of the charge pump and enabled control circuit control in charge pump parallel circuit that work in charge pump series circuit
The combination of pump may be implemented different boosting multiples, meet the needs of different output voltages.By the embodiments of the present invention,
Charge pump series circuit and charge pump parallel circuit are combined, solve in the prior art that charge the way is low, is risen
The inflexible problem of multiple is pressed, improves the operational efficiency of circuit so that output voltage multiple is more flexible.
In a kind of embodiment of the utility model, when being set in the charge pump series circuit, there are two charge pump, institutes
When stating charge pump there are two being set in charge pump parallel circuit, as shown in figure 4, the charge pump in the charge pump series circuit 21 is
Charge pump A and B, the charge pump in the charge pump parallel circuit 22 are respectively charge pump C and charge pump D, and the charge
The boosting multiple for pumping A, charge pump B, charge pump C and charge pump D is respectively 2,3,2,3.
It is controlled by the bypass control circuit according to the charge pump series circuit, a variety of work of charge pump may be implemented
Pattern, for example, charge pump A works, charge pump B work, charge pump A and B are worked at the same time or charge pump A and B do not work,
Above-mentioned four kinds of operating modes can be obtained, to which the boosting multiple of charge pump series circuit output corresponds to above-mentioned four kinds of work
Pattern is respectively 2 times, 3 times, 6 times, 1 times.
It is controlled by the enabled control circuit according to the charge pump parallel circuit, the operating mode of charge pump may be implemented
For charge pump C work or charge pump D work, the boosting multiple to obtain the charge pump parallel circuit output corresponds to above-mentioned two
Kind operating mode is respectively 2 times and 3 times.
Pass through the combination of above-mentioned charge pump series circuit and charge pump parallel circuit, so that it may to obtain a variety of boosting multiples
Output voltage, such as 2 times, 3 times, 4 times, 6 times, 9 times, 12 times, 18 times.
Above-mentioned Fig. 4 is only a kind of embodiment of the utility model embodiment, if needing the output of other boosting multiples
Voltage can also adjust the charge pump of other boosting multiples in charge pump series circuit and/or charge pump parallel circuit, pass through
The combination of above-mentioned charge pump series circuit and charge pump parallel circuit, realizes the demand of voltage in several modes so that output
Boosting multiple it is more flexible, improve operational efficiency.
In addition, the utility model embodiment also provides a kind of battery, the battery includes the charge described in above-described embodiment
Pump combinational circuit.
Correspondingly, the utility model embodiment also provides a kind of portable device, the portable device includes above-mentioned reality
Apply the charge pump combination circuit described in example.
The optional embodiment of the utility model embodiment, still, the utility model are described in detail above in association with attached drawing
Embodiment is not limited to the detail in the above embodiment, can in the range of the technology design of the utility model embodiment
To carry out a variety of simple variants to the technical solution of the utility model embodiment, these simple variants belong to the utility model reality
Apply the protection domain of example.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is implemented
Example no longer separately illustrates various combinations of possible ways.
It will be appreciated by those skilled in the art that it is that can pass through to implement the method for the above embodiments
Program is completed to instruct relevant hardware, which is stored in a storage medium, including some instructions are used so that single
Piece machine, chip or processor (processor) execute all or part of step of each embodiment the method for the application.And it is preceding
The storage medium stated includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), magnetic disc or CD.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the utility model embodiment, as long as
It equally should be considered as the utility model embodiment disclosure of that without prejudice to the thought of the utility model embodiment.
Claims (6)
1. a kind of charge pump combination circuit, which is characterized in that including：
Charge pump series circuit and charge pump parallel circuit, the charge pump series circuit and the charge pump parallel circuit string
Connection, wherein the charge pump series circuit includes at least a charge pump controlled by bypass control circuit, and the charge pump is simultaneously
Join and includes at least two charge pumps in parallel by the control of enabled control circuit in circuit；
It is short-circuit condition when charge pump in the charge pump series circuit is controlled by the bypass control circuit, not by the side
It is in working condition when the control circuit control of road；
Charge pump in the charge pump parallel circuit is in working condition when being controlled by the enabled control circuit, is not made by described
Can be off state when control circuit control, and the only one charge pump in the charge pump parallel circuit is in running order.
2. charge pump combination circuit according to claim 1, which is characterized in that be equipped with when in the charge pump series circuit
One charge pump is set in the charge pump parallel circuit there are two when charge pump, the charge pump in the charge pump series circuit
For the first charge pump, the charge pump in the charge pump parallel circuit is respectively the second charge pump and third charge pump：
When first charge pump is controlled by the bypass control circuit, second charge pump or the third charge pump are by institute
When stating enabled control circuit control, the output voltage of the charge pump combination circuit is second charge pump or third electricity
The product of the boosting multiple and input voltage of lotus pump；
When first charge pump is not controlled by the bypass control circuit, second charge pump or the third charge pump by
When the enabled control circuit control, the output voltage of the charge pump combination circuit is first charge pump and described second
The boosting multiple of charge pump and the boosting multiple of the product of input voltage or first charge pump and the third charge pump with
The product of input voltage.
3. charge pump combination circuit according to claim 2, which is characterized in that the charge in the charge pump series circuit
The boosting multiple of pump is 2 or 3 times.
4. charge pump combination circuit according to claim 2, which is characterized in that the charge in the charge pump parallel circuit
The boosting multiple of pump is 2 or 3 times.
5. a kind of battery, which is characterized in that the battery includes the charge pump according to any one in claim 1-4
Combinational circuit.
6. a kind of portable device, which is characterized in that the portable device includes according to any one in claim 1-4
The charge pump combination circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721917503.0U CN207638557U (en) | 2017-12-29 | 2017-12-29 | charge pump combination circuit, battery and portable device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721917503.0U CN207638557U (en) | 2017-12-29 | 2017-12-29 | charge pump combination circuit, battery and portable device |
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| Publication Number | Publication Date |
|---|---|
| CN207638557U true CN207638557U (en) | 2018-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721917503.0U Active CN207638557U (en) | 2017-12-29 | 2017-12-29 | charge pump combination circuit, battery and portable device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688388A (en) * | 2020-12-18 | 2021-04-20 | Oppo（重庆）智能科技有限公司 | Charging device, electronic equipment and charging method |
-
2017
- 2017-12-29 CN CN201721917503.0U patent/CN207638557U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688388A (en) * | 2020-12-18 | 2021-04-20 | Oppo（重庆）智能科技有限公司 | Charging device, electronic equipment and charging method |
| CN112688388B (en) * | 2020-12-18 | 2023-11-28 | Oppo（重庆）智能科技有限公司 | Charging device, electronic equipment and charging method |
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