Charge pump circuit and electronic equipment

Abstract

The utility model relates to the technical field of circuits, in particular to a charge pump circuit and electronic equipment. The circuit comprises a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a seventh switch, an eighth switch, a ninth switch, a tenth switch, a first terminal, a second terminal, a first energy storage unit, a second energy storage unit and a third energy storage unit. The first terminal is connected with the first end of the first switch, and the second end of the first switch is connected with the first end of the fifth switch and the first end of the first energy storage unit. The second end of the fifth switch is connected with the first end of the second switch, the first end of the second energy storage unit and the first end of the seventh switch. By adopting the scheme, the cost and the area of the charge pump circuit can be reduced, the voltage conversion is realized, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuits, and in particular to a charge pump circuit and electronic equipment. Background Art

[0002] As the charging power of some electronic products increases, high voltage and high current become the development trend, and the power supply voltage of the adapter has also increased accordingly. Therefore, to charge the battery, a charge pump circuit is needed to complete the voltage conversion. In the related technology, the voltage corresponding to some power switches and capacitors in the charge pump circuit is relatively high, and high-specification power switches and capacitors need to be selected, resulting in high cost and area of ​​the charge pump circuit. Utility Model Content

[0003] The utility model provides a charge pump circuit and electronic equipment, the main purpose of which is to reduce the cost and area of ​​the charge pump circuit.

[0004] According to a first aspect of the utility model, a charge pump circuit is provided, comprising: a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a seventh switch, an eighth switch, a ninth switch, a tenth switch, a first terminal, a second terminal, a first energy storage unit, a second energy storage unit and a third energy storage unit; wherein,

[0005] The first terminal is connected to the first end of the first switch, the second end of the first switch is respectively connected to the first end of the fifth switch and the first end of the first energy storage unit, the second end of the fifth switch is respectively connected to the first end of the second switch, the first end of the second energy storage unit and the first end of the seventh switch, the second end of the first energy storage unit is respectively connected to the second end of the second switch and the first end of the sixth switch, the second end of the second energy storage unit is respectively connected to the first end of the third switch and the first end of the eighth switch, the first end of the ninth switch is respectively connected to the second end of the third switch and the first end of the third energy storage unit, the second end of the third energy storage unit is respectively connected to the first end of the tenth switch and the first end of the fourth switch, and the second end of the seventh switch, the second end of the ninth switch and the second end of the fourth switch are connected to the second terminal;

[0006] A second end of the sixth switch, a second end of the eighth switch, and a second end of the tenth switch are grounded.

[0007] Optionally, the first terminal is an input terminal, and the second terminal is an output terminal; or,

[0008] The first terminal is an output terminal, and the second terminal is an input terminal.

[0009] Optionally, when the first switch, the second switch, the third switch and the fourth switch are all in an on state, and the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch and the tenth switch are all in an off state, the first terminal, the first energy storage unit, the second energy storage unit, the third energy storage unit and the second terminal are sequentially connected in series;

[0010] The first voltage corresponding to the first terminal is the sum of the first energy storage voltage corresponding to the first energy storage unit, the second energy storage voltage corresponding to the second energy storage unit, the third energy storage voltage corresponding to the third energy storage unit, and the second voltage corresponding to the second terminal.

[0011] Optionally, when the first switch, the second switch, the third switch and the fourth switch are all in the off state, and the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch and the tenth switch are all in the on state, the first end of the first energy storage unit, the first end of the second energy storage unit and the first end of the third energy storage unit are respectively connected to the second terminal, and the second end of the first energy storage unit, the second end of the second energy storage unit and the second end of the third energy storage unit are grounded.

[0012] Optionally, the first energy storage unit, the second energy storage unit and the third energy storage unit each include at least one capacitor.

[0013] Optionally, the first energy storage unit, the second energy storage unit and the third energy storage unit each include a plurality of capacitors, and a connection mode between the plurality of capacitors includes at least one of a series connection and a parallel connection.

[0014] Optionally, the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch and the tenth switch each include at least one sub-switch.

[0015] Optionally, the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch and the tenth switch each include a plurality of sub-switches, and a connection method between the plurality of sub-switches includes at least one of a series connection and a parallel connection.

[0016] According to a second aspect of the present invention, an electronic device is provided, comprising: at least one charge pump circuit as shown in any one of the first aspects above.

[0017] Optionally, in an embodiment of the present invention, there are multiple charge pump circuits, and the connection between the multiple charge pump circuits includes at least one of a series connection and a parallel connection.

[0018] In summary, in one or more embodiments of the utility model, the operating voltage of each energy storage unit can be the output voltage, and a low withstand voltage capacitor can be used, which can reduce the cost and area of ​​the charge pump circuit. In addition, compared with the prior art, the withstand voltage of some switches is significantly reduced, and switches with lower processes can be used, which can reduce the cost and area of ​​the charge pump circuit. Secondly, compared with the prior art, the impedance under the same area is significantly reduced, and the working efficiency of the charge pump circuit is significantly improved.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A schematic diagram of a dual-phase Dickson structure 4:1 switched capacitor converter provided by an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the structure of a 4:1 switched capacitor converter with an SP structure provided by an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the structure of a charge pump circuit provided by an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of an equivalent circuit of a charge pump circuit provided by an embodiment of the utility model;

[0025] Figure 5 A schematic diagram of an equivalent circuit of a charge pump circuit provided by another embodiment of the utility model;

[0026] Figure 6 A schematic diagram of the structure of an electronic device provided by an embodiment of the utility model;

[0027] Figure 7 A schematic structural diagram of an electronic device provided by another embodiment of the utility model;

[0028] Figure 8 A schematic diagram of the structure of an electronic device provided by another embodiment of the utility model;

[0029] Fig. 9 The present invention is a schematic structural diagram of an electronic device provided in yet another embodiment of the present invention.

[0030] Explanation of the reference numerals: first energy storage unit C1, second energy storage unit C2, third energy storage unit C3, first switch Q1, second switch Q2, third switch Q3, fourth switch Q4, fifth switch Q5, sixth switch Q6, seventh switch Q7, eighth switch Q8, ninth switch Q9, tenth switch Q10. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0032] As the charging power of electronic devices increases, high voltage and high current become the development trend. As a result, the power supply voltage of the adapter gradually increases. Therefore, in order to charge electronic devices, a step-down circuit is needed to complete the voltage conversion.

[0033] For example, when the power supply voltage of the adapter is increased to 20V and the voltage supported by the electronic device is 5V, a 4x step-down circuit is needed to complete the voltage conversion, and then a 4:1 switched capacitor converter comes into being.

[0034] In the related technology, Figure 1 The schematic diagram of the structure of a dual-phase Dickson structure 4:1 switched capacitor converter provided by the embodiment of the utility model. Figure 1 As shown, it requires 16 power switches. The large number of power switches makes its drive control scheme more complicated. In addition, the working voltages of its internal capacitors are not the same. The working voltages of some capacitors are higher than the output voltage, which causes the power switches corresponding to these capacitors to have a higher withstand voltage. High-specification power switches and capacitors need to be selected, resulting in higher cost and area of ​​the charge pump circuit.

[0035] In the related technology, Figure 2The schematic diagram of the structure of a 4:1 switch capacitor converter of SP structure provided by the embodiment of the utility model. Although it only needs 10 power switches, the withstand voltages of these ten power switches are S1=3VOUT, S2=3VOUT, S3=2VOUT, S4=2VOUT, S5=VOUT, S6=VOUT, S7=4VOUT, S8=VOUT, S9=VOUT, S10=VOUT, which requires 1 power switch with 4VOUT withstand voltage, 2 power switches with 3VOUT withstand voltage, 2 power switches with 2VOUT withstand voltage, and 5 power switches with VOUT withstand voltage, among which the withstand voltage of the 5 power switches is relatively high, and high-specification power switches and capacitors need to be selected, resulting in a high cost and area of ​​the charge pump circuit.

[0036] The utility model is described in detail below in conjunction with specific embodiments.

[0037] Figure 3 A schematic diagram of the structure of a charge pump circuit provided by an embodiment of the utility model.

[0038] like Figure 3 As shown, the charge pump circuit comprises:

[0039] A first switch Q1, a second switch Q2, a third switch Q3, a fourth switch Q4, a fifth switch Q5, a sixth switch Q6, a seventh switch Q7, an eighth switch Q8, a ninth switch Q9, a tenth switch Q10, a first terminal, a second terminal, a first energy storage unit C1, a second energy storage unit C2 and a third energy storage unit C3; wherein,

[0040] The first terminal is connected to the first end of the first switch Q1, the second end of the first switch Q1 is respectively connected to the first end of the fifth switch Q5 and the first end of the first energy storage unit C1, the second end of the fifth switch Q5 is respectively connected to the first end of the second switch Q2, the first end of the second energy storage unit C2 and the first end of the seventh switch Q7, the second end of the first energy storage unit C1 is respectively connected to the second end of the second switch Q2 and the first end of the sixth switch Q6, the second end of the second energy storage unit C2 is respectively connected to the first end of the third switch Q3 and the first end of the eighth switch Q8, the first end of the ninth switch Q9 is respectively connected to the second end of the third switch Q3 and the first end of the third energy storage unit C3, the second end of the third energy storage unit C3 is respectively connected to the first end of the tenth switch Q10 and the first end of the fourth switch Q4, and the second end of the seventh switch Q7, the second end of the ninth switch Q9 and the second end of the fourth switch Q4 are connected to the second terminal;

[0041] A second end of the sixth switch Q6 , a second end of the eighth switch Q8 , and a second end of the tenth switch Q10 are grounded.

[0042] As a possible implementation manner, the first terminal may be used as an input terminal, and the second terminal may be used as an output terminal.

[0043] Alternatively, the first terminal may be an output terminal, and the second terminal may be an input terminal.

[0044] It should be noted that if the first terminal is an input terminal and the second terminal is an output terminal, the charge pump circuit can achieve step-down conversion. If the first terminal is an output terminal and the second terminal is an input terminal, the charge pump circuit can achieve step-up conversion.

[0045] As a possible implementation method, when the first switch Q1, the second switch Q2, the third switch Q3 and the fourth switch Q4 are all in the on state, and the fifth switch Q5, the sixth switch Q6, the seventh switch Q7, the eighth switch Q8, the ninth switch Q9 and the tenth switch Q10 are all in the off state, the first terminal, the first energy storage unit C1, the second energy storage unit C2, the third energy storage unit C3 and the second terminal are sequentially connected in series. In this case, the corresponding equivalent circuit diagram is as follows: Figure 4 As shown, in this case, the first voltage corresponding to the first terminal is the sum of the first energy storage voltage corresponding to the first energy storage unit C1, the second energy storage voltage corresponding to the second energy storage unit C2, the third energy storage voltage corresponding to the third energy storage unit C3 and the second voltage corresponding to the second terminal.

[0046] For example, Figure 4 As shown, the first voltage VIN corresponding to the first terminal is the sum of the first energy storage voltage VC1 corresponding to the first energy storage unit C1, the second energy storage voltage VC2 corresponding to the second energy storage unit C2, the third energy storage voltage VC3 corresponding to the third energy storage unit C3 and the second voltage VOUT corresponding to the second terminal, that is, VIN=VC1+VC2+VC3+VOUT.

[0047] As another possible implementation, when the first switch Q1, the second switch Q2, the third switch Q3 and the fourth switch Q4 are all in the off state, and the fifth switch Q5, the sixth switch Q6, the seventh switch Q7, the eighth switch Q8, the ninth switch Q9 and the tenth switch Q10 are all in the on state, the first end of the first energy storage unit C1, the first end of the second energy storage unit C2 and the first end of the third energy storage unit C3 are respectively connected to the second terminal, and the second end of the first energy storage unit C1, the second end of the second energy storage unit C2 and the second end of the third energy storage unit C3 are grounded. The corresponding equivalent circuit diagram in this case is as follows: Figure 5 shown.

[0048] For example, if Figure 5As shown, in this case, the first energy storage voltage VC1 corresponding to the first energy storage unit C1 is equal to the second energy storage voltage VC2 corresponding to the second energy storage unit C2, equal to the third energy storage voltage VC3 corresponding to the third energy storage unit C3, and equal to the second voltage VOUT corresponding to the second terminal, that is, VC1=VC2=VC3=VOUT.

[0049] Taking a scenario as an example, when the first terminal is the input terminal, the second terminal is the output terminal, and the first energy storage unit C1, the second energy storage unit C2, and the third energy storage unit C3 are of the same model, in the first stage, the first terminal, the first energy storage unit C1, the second energy storage unit C2, the third energy storage unit C3, and the second terminal can be controlled to be connected in series in sequence, so that the first voltage V1 input to the first terminal is used to charge the first energy storage unit C1, the second energy storage unit C2, and the third energy storage unit C3 until VIN=4VC1=4VC2=4VC3. In the second stage, the first energy storage unit C1, the second energy storage unit C2, and the third energy storage unit C3 can be controlled to be connected in parallel, so that the first energy storage unit C1, the second energy storage unit C2, and the third energy storage unit C3 discharge to the second terminal, at this time, VC1=VC2=VC3=VOUT=1 / 4VIN. The two stages are operated crosswise, and the second terminal can be kept for 4 times step-down output.

[0050] Taking another scenario as an example, when the first terminal is the output terminal and the second terminal is the input terminal, first, the first energy storage unit C1, the second energy storage unit C2, and the third energy storage unit C3 can be controlled to be connected in parallel, so that the second voltage V2 input to the second terminal charges the first energy storage unit C1, the second energy storage unit C2, and the third energy storage unit C3 until VC1=VC2=VC3=VIN. Then, the first terminal, the first energy storage unit C1, the second energy storage unit C2, the third energy storage unit C3, and the second terminal can be controlled to be connected in series in sequence, so that the second terminal, the first energy storage unit C1, the second energy storage unit C2, and the third energy storage unit C3 all provide an output voltage to the first terminal. At this time, VIN=VC1+VC2+VC3+V2=4VOUT. Therefore, these two stages are cross-operated to keep the first terminal for a 4-fold boost output.

[0051] Optionally, the first energy storage unit, the second energy storage unit and the third energy storage unit each include at least one capacitor.

[0052] Optionally, the first energy storage unit, the second energy storage unit and the third energy storage unit each include a plurality of capacitors, and a connection method between the plurality of capacitors includes at least one of a series connection and a parallel connection.

[0053] Optionally, the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch and the tenth switch each include at least one sub-switch.

[0054] Optionally, the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch and the tenth switch each include multiple sub-switches, and the connection method between the multiple sub-switches includes at least one of series connection and parallel connection.

[0055] In some embodiments, the types of sub-switches include but are not limited to mechanical switches, N-type transistors, P-type transistors, etc. The types of transistors include but are not limited to bipolar junction transistors (BJT), gate turn-off thyristors (GTO), insulated gate bipolar transistors (IGBT), integrated gate commutated thyristors (IGCT), metal oxide semiconductor field effect transistors (MOSFET, MOS), gallium nitride field effect transistors (GaNFET), etc.

[0056] As a specific example of a charge pump circuit, Figure 4 As shown, the first terminal is the input terminal VIN, the second terminal is the output terminal VOUT, the first switch Q1, the second switch Q2, the third switch Q3, the fourth switch Q4, the fifth switch Q5, the sixth switch Q6, the seventh switch Q7, the eighth switch Q8, the ninth switch Q9 and the tenth switch Q10 are all MOS tubes, the first energy storage unit C1, the second energy storage unit C2 and the third energy storage unit C3 are all capacitors, the capacitor withstand voltage of the charge pump circuit disclosed in the present invention is the output voltage, and low withstand voltage capacitors can be used, the cost and area are significantly improved, and the withstand voltage of the switch is reduced, and a MOS tube with a lower process can be used. The withstand voltage of the MOS tube is significantly reduced compared with the Dickson structure, which saves area. With the same area, the impedance is significantly reduced, and the system power consumption is significantly reduced.

[0057] In summary, the charge pump circuit provided by the embodiment of the utility model realizes that the working voltage of each energy storage unit is the output voltage, and a low withstand voltage capacitor can be used, which is conducive to reducing the cost and area of ​​the charge pump circuit. In addition, compared with the prior art, the withstand voltage of some switches is significantly reduced, and switches with lower processes can be used, which can reduce the cost and area of ​​the charge pump circuit. Secondly, compared with the prior art, the impedance under the same area is significantly reduced, and the working efficiency of the charge pump circuit is significantly improved.

[0058] An embodiment of the utility model also provides an electronic device.

[0059] Specifically, the electronic device includes: at least one charge pump circuit as shown in any of the above embodiments.

[0060] Optionally, when there are multiple charge pump circuits, the connection between the multiple charge pump circuits includes at least one of a series connection and a parallel connection.

[0061] In other words, the charge pump circuit can be extended to multi-phase applications, and can adopt a multi-phase series connection mode, a multi-phase parallel connection mode, or a mixed connection mode of multi-phase series and parallel connection.

[0062] In one connection method, Figure 6 This is a schematic diagram of the structure of an electronic device provided by an embodiment of the utility model. Figure 6 As shown, the electronic device includes N charge pump circuits, and the N charge pump circuits are connected in multi-phase parallel, where N is a positive integer greater than 1.

[0063] In another connection method, Figure 7 This is a schematic diagram of the structure of an electronic device provided by an embodiment of the utility model. Figure 7 As shown, the electronic device includes N charge pump circuits, and the N charge pump circuits are connected in multi-phase series.

[0064] In another connection method, Figure 8 This is a schematic diagram of the structure of an electronic device provided by an embodiment of the utility model. Figure 8 As shown, the electronic device includes N charge pump circuits, which adopt a multi-phase series-parallel hybrid connection method, wherein the N charge pump circuits are first connected in parallel and then connected in series with the N charge pump circuits in sequence.

[0065] In another connection method, Fig. 9 This is a schematic diagram of the structure of an electronic device provided by an embodiment of the utility model. Fig. 9 As shown, the electronic device includes N charge pump circuits, which adopt a multi-phase series-parallel hybrid connection method, wherein the N charge pump circuits are first connected in series and then connected in parallel with N charge pump circuits to form an overall series connection.

[0066] In summary, in the electronic device provided by the embodiment of the utility model, the operating voltage of each energy storage unit can be the output voltage, and a low withstand voltage capacitor can be used, which can reduce the cost and area of ​​the charge pump circuit. In addition, compared with the prior art, the withstand voltage of some switches is significantly reduced, and switches with lower processes can be used, which can reduce the cost and area of ​​the charge pump circuit. Secondly, compared with the prior art, the impedance under the same area is significantly reduced, and the working efficiency of the charge pump circuit is significantly improved.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms may be for different embodiments or examples. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A charge pump circuit, characterized in that: include: a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a seventh switch, an eighth switch, a ninth switch, a tenth switch, a first terminal, a second terminal, a first energy storage unit, a second energy storage unit, and a third energy storage unit; wherein, The first terminal is connected to the first end of the first switch, the second end of the first switch is respectively connected to the first end of the fifth switch and the first end of the first energy storage unit, the second end of the fifth switch is respectively connected to the first end of the second switch, the first end of the second energy storage unit and the first end of the seventh switch, the second end of the first energy storage unit is respectively connected to the second end of the second switch and the first end of the sixth switch, the second end of the second energy storage unit is respectively connected to the first end of the third switch and the first end of the eighth switch, the first end of the ninth switch is respectively connected to the second end of the third switch and the first end of the third energy storage unit, the second end of the third energy storage unit is respectively connected to the first end of the tenth switch and the first end of the fourth switch, and the second end of the seventh switch, the second end of the ninth switch and the second end of the fourth switch are connected to the second terminal; A second end of the sixth switch, a second end of the eighth switch, and a second end of the tenth switch are grounded.

2. The charge pump circuit according to claim 1, characterized in that: in, The first terminal is an input terminal, and the second terminal is an output terminal; or, The first terminal is an output terminal, and the second terminal is an input terminal.

3. The charge pump circuit according to claim 1, characterized in that: in, When the first switch, the second switch, the third switch and the fourth switch are all in the on state, and the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch and the tenth switch are all in the off state, the first terminal, the first energy storage unit, the second energy storage unit, the third energy storage unit and the second terminal are connected in series in sequence; The first voltage corresponding to the first terminal is the sum of the first energy storage voltage corresponding to the first energy storage unit, the second energy storage voltage corresponding to the second energy storage unit, the third energy storage voltage corresponding to the third energy storage unit, and the second voltage corresponding to the second terminal.

4. The charge pump circuit according to claim 1, characterized in that: in, When the first switch, the second switch, the third switch and the fourth switch are all in the off state, and the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch and the tenth switch are all in the on state, the first end of the first energy storage unit, the first end of the second energy storage unit and the first end of the third energy storage unit are respectively connected to the second terminal, and the second end of the first energy storage unit, the second end of the second energy storage unit and the second end of the third energy storage unit are grounded.

5. The charge pump circuit according to any one of claims 1 to 4, characterized in that: The first energy storage unit, the second energy storage unit and the third energy storage unit each include at least one capacitor.

6. The charge pump circuit according to claim 5, characterized in that: The first energy storage unit, the second energy storage unit and the third energy storage unit each include a plurality of capacitors, and a connection mode between the plurality of capacitors includes at least one of a series connection and a parallel connection.

7. The charge pump circuit according to claim 1, characterized in that: in, Each of the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch, and the tenth switch includes at least one sub-switch.

8. The charge pump circuit according to claim 1, characterized in that: in, The first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch and the tenth switch each include a plurality of sub-switches, and a connection method between the plurality of sub-switches includes at least one of a series connection and a parallel connection.

9. An electronic device, characterized in that: include: At least one charge pump circuit as claimed in any one of claims 1 to 8.

10. The electronic device according to claim 9, characterized in that: There are multiple charge pump circuits, and the connection between the multiple charge pump circuits includes at least one of series connection and parallel connection.

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