CN104410271A - Multiphase interleaving technology for five-conversion-ratio charge pump by using three flying capacitors - Google Patents
Multiphase interleaving technology for five-conversion-ratio charge pump by using three flying capacitors Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
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Abstract
A switched capacitor type switching power supply has the advantages of low electro- magnetic interference (EMI), high efficiency, small size, and the like, and is an important part of a power management system. The invention discloses a multiphase interleaving technology for a charge pump type DC-DC converter by using three flying capacitors. For a plurality of voltage conversion ratios, such as *2, *1, *2/3, *1/2 and *1/3, the multiphase interleaving technology provided by the invention can realize multiphase interleaving during the charging and discharging processes, thereby reducing current spike pulses and glitches as well as output ripples.
Description
Technical field:
Patent of the present invention contains charge pump DC-DC converter principle, Ripple Suppression technology, the heterogeneous interleaving technology of discharge and recharge.
Background technology:
Along with the development of integrated circuit technique, a large amount of appearance of portable mobile termianl, especially in recent years, popularizing of the products such as smart mobile phone, panel computer, GPS, electronic system it is also proposed more requirement to power supply, such as: portability, low-power consumption, stable output, high efficiency etc., promoted the development of portable electric appts power technology.Electronic system directly can not be powered for it by battery or power supply adaptor usually, and needs a voltage modulator that the direct voltage of instability is converted to stable system power supply power supply.At present, dc-dc is mainly divided into two classes: linear voltage regulator and Switching Power Supply modulator.Linear voltage regulator has the advantages such as low ripple, low noise, simplicity of design, is widely used in the occasion to noise-sensitive, but it is also efficient lower and can only realize the shortcomings such as step-down.Switching Power Supply is divided into again inductive type and capacitor type.Wherein, inductive type Switching Power Supply energy-storage travelling wave tube is inductance, and advantage is that conversion efficiency is high, and shortcoming has ripple interference at output, and have electromagnetic interference (EMI) problem; Capacitor type (also known as charge-pump type) Switching Power Supply uses electric capacity as energy-storage travelling wave tube, and greatly reduce EMI, conversion efficiency is also higher, and shortcoming is that output Ripple Noise is larger.
Simulation and radio circuit are to noise-sensitive, and usually adopt linear stable to power, although this avoids the noise jamming of power supply, system effectiveness is lower.Conventional charge pump-type dc-dc efficiency is higher, do not have EMI to disturb again, if the problem that its Ripple Noise is larger can be solved, then charge-pump type dc-dc can be applied to simulation and the radio circuit of noise-sensitive, thus improve system effectiveness, this is even more important to portable system.
In order to reduce ripple, a kind of method is connected in series a linear stable after charge pump, while output voltage stabilizing, reduces ripple.Owing to applying the lower linear stable of efficiency in this scheme as the filter suppressing ripple, make whole efficiency lower.The method of another kind of conventional reduction charge pump output ripple is the heterogeneous intertexture of output voltage, copies many parts and the phase bit that their discharge and recharge sequential staggered, thus offset ripple by elementary charge pump topology.But this method can cause the quantity of striding capacitance to be multiplied.Some originally only needs the conversion ratio of 1 striding capacitance, as × 1, × 2, × 1/2 etc., only need increase by 1 striding capacitance just can realize two-phase; And for the original gain needing 2 striding capacitances, as × 3/2, × 2/3, × 1/3, then need increase by 2 striding capacitances; By that analogy, if interweaved with 3, then need increase by 4 (totally 6) striding capacitance, this will cause the increase of system cost, especially to the chip pin quantity that integrated realization also can additionally increase.The present invention proposes a kind of heterogeneous interleaving technology employing three striding capacitances, may be used for × 2, × 1, × 2/3, × 1/2 and × 1/3 etc. multiple voltage conversion ratio, while guarantee charge pump switches power-efficient, reduce the Ripple Noise of output, switching capacity type dc-dc is powered for simulation and radio circuit becomes possibility.
Summary of the invention:
The present invention is directed to the deficiency that the heterogeneous interleaving technology of conventional charge pump-type Switching Power Supply causes striding capacitance quantity to be multiplied, propose a kind of heterogeneous interleaving technology of charge pump discharge and recharge utilizing three striding capacitances to realize, this technology can be applicable to × 2, × 1, × 2/3, × multiple voltage conversion ratio such as 1/2 and × 1/3, realize leggy to interweave, suppress output ripple.
A charge pump system schematic diagram containing Novel multi-phase interleaving technology is as accompanying drawing 1, and it is made up of modules such as switched capacitor array (2), error amplifier, multi-phase clock generation and Schema control.Although the system in accompanying drawing 1 have employed pulse frequency modulated (PFM) to the modulation exported, the present invention also can be applicable to the output voltage modulation system of other type.
Three striding capacitances (6-1,6-2 and 6-3) and 15 switches (5-1 to 5-15) are contained in switched capacitor array (2) shown in accompanying drawing 2.Accompanying drawing 3 to accompanying drawing 7 respectively illustrates × 2, × 1, × 2/3, × five kinds of conversions such as 1/2 and × 1/3 than the topology status figure of lower switch arrays, wherein × 2 and × 1 conversion than having 3 states, and × 2/3, × 1/2 and × 1/3 there are 6 states.For simplicity, in state diagram, do not draw switch, only depict three striding capacitances (6-1,6-2 and 6-3) and power supply (1), export annexation between (3) and ground wire (4).
After system starts, mode control module dynamically selects voltage conversion ratio according to power supply (1) voltage and output (3) voltage, and multi-phase clock generation module and timepiece drive module are according to the clock signal of specific voltage conversion than the driving switch required for generation.If selected voltage conversion ratio is × 2 or × 1, switched capacitor array sequentially passes through topology status 1 (7-1 or 8-1), topology status 2 (7-2 or 8-2) and topology status 3 (7-3 or 8-3), then get back to topology status 1 (7-1 or 8-1), move in circles; If selected voltage conversion ratio is × 2/3, × 1/2 or × 1/3, switched capacitor array sequentially passes through topology status 1 (9-1,10-1 or 11-1), topology status 2 (9-2,10-2 or 11-2), topology status 3 (9-3,10-3 or 11-3), topology status 4 (9-4,10-4 or 11-4), topology status 5 (9-5,10-5 or 11-5), topology status 6 (9-6,10-6 or 11-6), then get back to topology status 1 (91,10-1 or 11-1), move in circles.
From the state diagram in accompanying drawing 3 to accompanying drawing 7, under each voltage conversion ratio, three striding capacitances are all through identical discharge and recharge sequential, and the discharge and recharge sequential of three striding capacitances exists identical phase difference, thus achieve the heterogeneous intertexture of discharge and recharge, reduce the ripple of output.
Accompanying drawing illustrates:
1 one kinds, accompanying drawing comprises the charge pump DC-DC converter system block diagram of Novel multi-phase interleaving technology;
Accompanying drawing 2 switched capacitor array topological diagram;
Accompanying drawing 3 is changed than topology status figure when being × 2;
Accompanying drawing 4 is changed than topology status figure when being × 1;
Accompanying drawing 5 is changed than topology status figure when being × 2/3;
Accompanying drawing 6 is changed than topology status figure when being × 1/2;
Accompanying drawing 7 change than for × 1/3 time than topology status figure.
Embodiment:
1. as shown in Figure 1, it is made up of modules such as switched capacitor array (2), error amplifier, multi-phase clock generation and Schema control the charge pump system in the present invention, and it does not limit the mode of output voltage modulation.
2. contain three striding capacitances (6-1,6-2 and 6-3) and 15 switches (5-1 to 5-15) in switched capacitor array (2), as shown in Figure 2.Wherein, the top crown of three striding capacitances is connected with input power (1) with (5-11) respectively by switch (5-1), (5-6), is connected by switch (5-2), (5-7) with (5-12) with output loading (3) simultaneously; Three striding capacitances (6-1), (6-2) are connected with ground wire (4) with (5-13) respectively by switch (5-3), (5-8) with the bottom crown of (6-3), are connected by switch (5-4), (5-9) with (5-14) with output loading (3) simultaneously; Striding capacitance (6-1), (6-2) and (6-3) connect into ring topology by switch (5-5), (5-10) and (5-15).
3. after system starts, mode control module dynamically selects voltage conversion ratio according to power supply (1) voltage and output (3) voltage, multi-phase clock generation module and timepiece drive module are according to the clock signal of specific voltage conversion than the driving switch required for generation, make three striding capacitances through identical discharge and recharge sequential, and there is identical phase difference in three discharge and recharge sequential.
4. if voltage conversion ratio is × 2, and switched capacitor array topology sequential (7) as shown in Figure 3, has three states (7-1,7-2 and 7-3):
1) first state (7-1), the upper bottom crown of striding capacitance (6-1) is connected with ground wire (4) with power supply (1) respectively, the top crown of striding capacitance (6-2) is connected with output (3), bottom crown is connected with the top crown of striding capacitance (6-3), and the bottom crown of striding capacitance (6-3) is connected with ground wire (4);
2) second state (7-2), the upper bottom crown of striding capacitance (62) is connected with ground wire (4) with power supply (1) respectively, the top crown of striding capacitance (6-3) is connected with output (3), bottom crown is connected with the top crown of striding capacitance (6-1), and the bottom crown of striding capacitance (6-1) is connected with ground wire (4);
3) the 3rd state (7-3), the upper bottom crown of striding capacitance (6-3) is connected with ground wire (4) with power supply (1) respectively, the top crown of striding capacitance (6-1) is connected with output (3), bottom crown is connected with the top crown of striding capacitance (6-2), and the bottom crown of striding capacitance (6-2) is connected with ground wire (4);
Switched capacitor array order experience state 7-1, state 7-2, then to state 7-3, then get back to state 7-1, move in circles.
5. if voltage conversion ratio is × 1, and as shown in Figure 4, it has three states (8-1,8-2 and 8-3) to switched capacitor array topology sequential (8):
1) first state (8-1), the upper bottom crown of striding capacitance (6-1) is connected with ground wire (4) with power supply (1) respectively, and striding capacitance (6-2) is connected with ground wire (4) with output (3) respectively with the upper bottom crown of (6-3);
2) second state (8-2), the upper bottom crown of striding capacitance (6-2) is connected with ground wire (4) with power supply (1) respectively, and striding capacitance (6-1) is connected with ground wire (4) with output (3) respectively with the upper bottom crown of (6-3);
3) the 3rd state (8-3), the upper bottom crown of striding capacitance (6-3) is connected with ground wire (4) with power supply (1) respectively, and striding capacitance (6-1) is connected with ground wire (4) with output (3) respectively with the upper bottom crown of (6-2);
Switched capacitor array order experience state 8-1, state 8-2, then to state 8-3, then get back to state 8-1, move in circles.
6. if voltage conversion ratio is × 2/3, and as shown in Figure 5, it has six states (9-1,9-2,9-3,9-4,9-5 and 9-6) to switched capacitor array topology sequential (9):
1) first state (9-1), the upper bottom crown of striding capacitance (6-1) and (6-2) respectively with power supply (1) with export (3) and be connected, the top crown of striding capacitance (6-3) is unsettled, and bottom crown is connected with ground wire (4) or unsettled;
2) second state (9-2), keep the upper bottom crown of striding capacitance (6-2) respectively with power supply (1) with export (3) and be connected, striding capacitance (6-3) top crown is connected with output (3), bottom crown is connected with striding capacitance (6-1) top crown, and striding capacitance (6-1) bottom crown is connected with ground wire (4);
3) the 3rd state (9-3), the upper bottom crown of striding capacitance (6-2) and (6-3) respectively with power supply (1) with export (3) and be connected, the top crown of striding capacitance (6-1) is unsettled, and bottom crown is connected with ground wire (4) or unsettled;
4) one of four states (9-4), keep the upper bottom crown of striding capacitance (6-3) respectively with power supply (1) with export (3) and be connected, the top crown of striding capacitance (6-1) is connected with output (3), bottom crown is connected with striding capacitance (6-2) top crown, and striding capacitance (6-2) bottom crown is connected with ground wire (4);
5) the 5th state (9-5), the upper bottom crown of striding capacitance (6-1) and (6-3) respectively with power supply (1) with export (3) and be connected, the top crown of striding capacitance (6-2) is unsettled, and bottom crown is connected with ground wire (4) or unsettled;
6) the 6th state (9-6), keep the upper bottom crown of striding capacitance (6-1) respectively with power supply (1) with export (3) and be connected, striding capacitance (6-2) top crown is connected with output (3), bottom crown is connected with striding capacitance (6-3) top crown, and striding capacitance (6-3) bottom crown is connected with ground wire (4);
Switched capacitor array order experience state 9-1, state 9-2, state 9-3, state 9-4, state 9-5, then to state 9-6, then get back to state 9-1, move in circles.
7. if voltage conversion ratio is × 1/2, and as shown in Figure 6, it has six states (10-1,10-2,10-3,10-4,10-5 and 10-6) to switched capacitor array topology sequential (10):
1) first state (10-1), the upper bottom crown of striding capacitance (6-1) and (6-2) respectively with power supply (1) with export (3) and be connected, the upper bottom crown of striding capacitance (6-3) respectively with export (3) and be connected with ground wire (4);
2) second state (10-2), keep the upper bottom crown of striding capacitance (62) respectively with power supply (1) with export (3) and be connected, striding capacitance (6 one 1) and (6-3) top crown respectively with export (3) and be connected with ground wire (4);
3) the 3rd state (10-3), the upper bottom crown of striding capacitance (6-2) and (6-3) respectively with power supply (1) with export (3) and be connected, the upper bottom crown of striding capacitance (6-1) respectively with export (3) and be connected with ground wire (4);
4) one of four states (10-4), keep the upper bottom crown of striding capacitance (6-3) respectively with power supply (1) with export (3) and be connected, the upper bottom crown of striding capacitance (6-1) and (6-2) respectively with export (3) and be connected with ground wire (4);
5) the 5th state (10-5), the upper bottom crown of striding capacitance (6-1) and (6-3) respectively with power supply (1) with export (3) and be connected, the upper bottom crown of striding capacitance (6-2) respectively with export (3) and be connected with ground wire (4);
6) the 6th state (10-6), keep the upper bottom crown of striding capacitance (6-1) respectively with power supply (1) with exports (3) and be connected, striding capacitance (6-2) and (6-3) go up bottom crown respectively with export (3) and be connected with ground wire (4);
Switched capacitor array order experience state 10-1, state 10-2, state 10-3, state 10-4, state 10-5, then to state 10-6, then get back to state 10-1, move in circles.
8. if voltage conversion ratio is × 1/3, and as shown in Figure 7, it has six states (11-1,11-2,11-3,11-4,11-5 and 11-6) to switched capacitor array topology sequential (11):
1) first state (11-1), striding capacitance (6-1) is connected with ground wire (4) with output (3) respectively with (6-2) upper bottom crown, the upper bottom crown of striding capacitance (6-3) has at least one to be unsettled, top crown connects power supply (1) or unsettled, and bottom crown is unsettled or connect output (3);
2) second state (11-2), the upper bottom crown of striding capacitance (6-2) is kept to be connected with ground wire (4) with output (3) respectively, striding capacitance (6-3) top crown is connected with power supply (1), bottom crown is connected with striding capacitance (6-1) top crown, and striding capacitance (6-1) bottom crown is connected with output (3);
3) the 3rd state (11-3), striding capacitance (6-2) is connected with ground wire (4) with output (3) respectively with (6-3) upper bottom crown, the upper bottom crown of striding capacitance (6-1) has at least one to be unsettled, top crown connects power supply (1) or unsettled, and bottom crown is unsettled or connect output (3);
4) one of four states (11-4), the upper bottom crown of striding capacitance (6-3) is kept to be connected with ground wire (4) with output (3) respectively, the top crown of striding capacitance (6 one 1) is connected with power supply (1), bottom crown is connected with striding capacitance (6-2) top crown, and striding capacitance (6-2) bottom crown is connected with output (3);
5) the 5th state (11-5), striding capacitance (6-1) is connected with ground wire (4) with output (3) respectively with (6-3) upper bottom crown, the upper bottom crown of striding capacitance (6-2) has at least one to be unsettled, top crown connects power supply (1) or unsettled, and bottom crown is unsettled or connect output (3);
6) the 6th state (11-6), the upper bottom crown of striding capacitance (6-1) is kept to be connected with ground wire (4) with output (3) respectively, the top crown of striding capacitance (6-2) is connected with power supply (1), bottom crown is connected with striding capacitance (6-3) top crown, and striding capacitance (6-3) bottom crown is connected with output (3);
Switched capacitor array order experience state 11-1, state 11-2, state 11-3, state 11-4, state 11-5, then to state 11-6, then get back to state 11-1, move in circles.
Reference numerals list:
Vin input supply voltage
Vout output voltage
Vf feedback voltage
Vref reference voltage
Vcon output voltage error amplifier
Vbat input power
R
1output divider resistance 1
R
2output divider resistance 2
R
lload resistance
C
lload capacitance
1 input power
2 switched capacitor arrays
3 outputs
4 ground wires
5-1 ~ 5-15 switch 1 ~ 15
6-1 ~ 6-3 striding capacitance 1 ~ 3
7 conversions are than topology status figure when being × 2
8 conversions are than topology status figure when being × 1
9 conversions are than topology status figure when being × 2/3
10 conversions are than topology status figure when being × 1/2
11 conversions are than topology status figure when being × 1/3
7-1 ~ 7-3 conversion is than the state 1 ~ 3 when being × 2
8-1 ~ 8-3 conversion is than the state 1 ~ 3 when being × 1
9-1 ~ 9-6 conversion is than the state 1 ~ 6 when being × 2/3
10-1 ~ 10-6 conversion is than the state 1 ~ 6 when being × 1/2
11-1 ~ 11-6 conversion is than the state 1 ~ 6 when being × 1/3.
Claims (8)
1. one kind for suppressing the heterogeneous interleaving technology of charge pump discharge and recharge of charge pump DC-DC converter output ripple, it is characterized in that charge pump employs three striding capacitances (6-1), (6-2) and (6-3), there is phase difference in the sequential of each striding capacitance discharge and recharge, obtains the output current of leggy intertexture at output.
2. for the heterogeneous interleaving technology of charge pump discharge and recharge described in claim 1, the feature of its switched capacitor array is: three striding capacitances (6-1), (6-2) are connected with input power (1) with (5-11) respectively by switch (5-1), (5-6) with the top crown of (6-3), is connected by switch (5-2), (5-7) with (5-12) with output loading (3) simultaneously; Three striding capacitances (6-1), (6-2) are connected with ground wire (4) with (5-13) respectively by switch (5-3), (5-8) with the bottom crown of (6-3), are connected by switch (5-4), (5-9) with (5-14) with output loading (3) simultaneously; Striding capacitance (6-1), (6-2) and (6-3) connect into ring topology by switch (5-5), (5-10) and (5-15).
3., for the heterogeneous interleaving technology of charge pump discharge and recharge described in claim 1, it is characterized in that utilizing switched capacitor array topology sequential (7,8,9,10,11) realize for × 2, the heterogeneous intertexture of discharge and recharge of × 1, × 2/3, × 1/2 and × 1/3 etc. multiple different voltage conversion ratio.
4., for the heterogeneous interleaving technology of charge pump discharge and recharge described in claim 3, for switched capacitor array topology sequential (7) realizing × 2 voltage conversion ratios, be characterized as it and have three states (7-1,7-2 and 7-3):
A. first state (7-1), the upper bottom crown of striding capacitance (6-1) is connected with ground wire (4) with power supply (1) respectively, the top crown of striding capacitance (6-2) is connected with output (3), bottom crown is connected with the top crown of striding capacitance (6-3), and the bottom crown of striding capacitance (6-3) is connected with ground wire (4);
B. second state (7-2), the upper bottom crown of striding capacitance (6-2) is connected with ground wire (4) with power supply (1) respectively, the top crown of striding capacitance (6-3) is connected with output (3), bottom crown is connected with the top crown of striding capacitance (6-1), and the bottom crown of striding capacitance (6-1) is connected with ground wire (4);
C. the 3rd state (7-3), the upper bottom crown of striding capacitance (6-3) is connected with ground wire (4) with power supply (1) respectively, the top crown of striding capacitance (6-1) is connected with output (3), bottom crown is connected with the top crown of striding capacitance (6-2), and the bottom crown of striding capacitance (6-2) is connected with ground wire (4);
Switched capacitor array order experience state 7-1, state 7-2, then to state 7-3, then get back to state 7-1, move in circles.
5., for the heterogeneous interleaving technology of charge pump discharge and recharge described in claim 3, for switched capacitor array topology sequential (8) realizing × 1 voltage conversion ratio, be characterized as it and have three states (8-1,8-2 and 8-3):
A. first state (8-1), the upper bottom crown of striding capacitance (6-1) is connected with ground wire (4) with power supply (1) respectively, and striding capacitance (6-2) is connected with ground wire (4) with output (3) respectively with the upper bottom crown of (6-3);
B. second state (8-2), the upper bottom crown of striding capacitance (6-2) is connected with ground wire (4) with power supply (1) respectively, and striding capacitance (6-1) is connected with ground wire (4) with output (3) respectively with the upper bottom crown of (6-3);
C. the 3rd state (8-3), the upper bottom crown of striding capacitance (6-3) is connected with ground wire (4) with power supply (1) respectively, and striding capacitance (6-1) is connected with ground wire (4) with output (3) respectively with the upper bottom crown of (6-2);
Switched capacitor array order experience state 8-1, state 8-2, then to state 8-3, then get back to state 8-1, move in circles.
6. for the heterogeneous interleaving technology of charge pump discharge and recharge described in claim 3, for switched capacitor array topology sequential (9) realizing × 2/3 voltage conversion ratio, be characterized as it and have six states (9-1,9-2,9-3,9-4,9-5 and 9-6):
A. first state (9-1), the upper bottom crown of striding capacitance (6-1) and (6-2) respectively with power supply (1) with export (3) and be connected, the top crown of striding capacitance (6-3) is unsettled, and bottom crown is connected with ground wire (4) or unsettled;
B. second state (9-2), keep the upper bottom crown of striding capacitance (6-2) respectively with power supply (1) with export (3) and be connected, striding capacitance (6-3) top crown is connected with output (3), bottom crown is connected with striding capacitance (6-1) top crown, and striding capacitance (6-1) bottom crown is connected with ground wire (4);
C. the 3rd state (9-3), the upper bottom crown of striding capacitance (6-2) and (6-3) respectively with power supply (1) with export (3) and be connected, the top crown of striding capacitance (6-1) is unsettled, and bottom crown is connected with ground wire (4) or unsettled;
D. one of four states (9-4), keep the upper bottom crown of striding capacitance (6-3) respectively with power supply (1) with export (3) and be connected, the top crown of striding capacitance (6-1) is connected with output (3), bottom crown is connected with striding capacitance (6-2) top crown, and striding capacitance (6-2) bottom crown is connected with ground wire (4);
E. the 5th state (9-5), the upper bottom crown of striding capacitance (6-1) and (6-3) respectively with power supply (1) with export (3) and be connected, the top crown of striding capacitance (6-2) is unsettled, and bottom crown is connected with ground wire (4) or unsettled;
F. the 6th state (9-6), keep the upper bottom crown of striding capacitance (6-1) respectively with power supply (1) with export (3) and be connected, striding capacitance (6-2) top crown is connected with output (3), bottom crown is connected with striding capacitance (6-3) top crown, and striding capacitance (6-3) bottom crown is connected with ground wire (4);
Switched capacitor array order experience state 9-1, state 9-2, state 9-3, state 9-4, state 9-5, then to state 9-6, then get back to state 9-1, move in circles.
7. for the heterogeneous interleaving technology of charge pump discharge and recharge described in claim 3, for switched capacitor array topology sequential (10) realizing × 1/2 voltage conversion ratio, be characterized as it and have six states (10-1,10-2,10-3,10-4,10-5 and 10-6):
A. first state (10-1), the upper bottom crown of striding capacitance (6-1) and (6-2) respectively with power supply (1) with export (3) and be connected, the upper bottom crown of striding capacitance (6-3) respectively with export (3) and be connected with ground wire (4);
B. second state (10-2), keep the upper bottom crown of striding capacitance (6-2) respectively with power supply (1) with export (3) and be connected, striding capacitance (6-1) and (6-3) top crown respectively with export (3) and be connected with ground wire (4);
C. the 3rd state (10-3), the upper bottom crown of striding capacitance (6-2) and (6-3) respectively with power supply (1) with export (3) and be connected, the upper bottom crown of striding capacitance (6-1) respectively with export (3) and be connected with ground wire (4);
D. one of four states (10-4), keep the upper bottom crown of striding capacitance (6-3) respectively with power supply (1) with export (3) and be connected, the upper bottom crown of striding capacitance (6-1) and (6-2) respectively with export (3) and be connected with ground wire (4);
E. the 5th state (10-5), the upper bottom crown of striding capacitance (6-1) and (6-3) respectively with power supply (1) with export (3) and be connected, the upper bottom crown of striding capacitance (6-2) respectively with export (3) and be connected with ground wire (4);
F. the 6th state (10-6), keep the upper bottom crown of striding capacitance (6-1) respectively with power supply (1) with exports (3) and be connected, striding capacitance (6-2) and (6-3) go up bottom crown respectively with export (3) and be connected with ground wire (4);
Switched capacitor array order experience state 10-1, state 10-2, state 10-3, state 10-4, state 10-5, then to state 10-6, then get back to state 10-1, move in circles.
8. for the heterogeneous interleaving technology of charge pump discharge and recharge described in claim 3, for switched capacitor array topology sequential (11) realizing × 1/3 voltage conversion ratio, be characterized as it and have six states (11-1,11-2,11-3,11-4,11-5 and 11-6):
A. first state (11-1), striding capacitance (6-1) is connected with ground wire (4) with output (3) respectively with (6-2) upper bottom crown, the upper bottom crown of striding capacitance (6-3) has at least one to be unsettled, top crown connects power supply (1) or unsettled, and bottom crown is unsettled or connect output (3);
B. second state (11-2), the upper bottom crown of striding capacitance (6-2) is kept to be connected with ground wire (4) with output (3) respectively, striding capacitance (6-3) top crown is connected with power supply (1), bottom crown is connected with striding capacitance (6-1) top crown, and striding capacitance (6-1) bottom crown is connected with output (3);
C. the 3rd state (11-3), striding capacitance (6-2) is connected with ground wire (4) with output (3) respectively with (6-3) upper bottom crown, the upper bottom crown of striding capacitance (6-1) has at least one to be unsettled, top crown connects power supply (1) or unsettled, and bottom crown is unsettled or connect output (3);
D. one of four states (11-4), the upper bottom crown of striding capacitance (6-3) is kept to be connected with ground wire (4) with output (3) respectively, the top crown of striding capacitance (6-1) is connected with power supply (1), bottom crown is connected with striding capacitance (6-2) top crown, and striding capacitance (6-2) bottom crown is connected with output (3);
E. the 5th state (11-5), striding capacitance (6-1) is connected with ground wire (4) with output (3) respectively with (6-3) upper bottom crown, the upper bottom crown of striding capacitance (6-2) has at least one to be unsettled, top crown connects power supply (1) or unsettled, and bottom crown is unsettled or connect output (3);
F. the 6th state (11-6), the upper bottom crown of striding capacitance (6-1) is kept to be connected with ground wire (4) with output (3) respectively, the top crown of striding capacitance (6-2) is connected with power supply (1), bottom crown is connected with striding capacitance (6-3) top crown, and striding capacitance (6-3) bottom crown is connected with output (3);
Switched capacitor array order experience state 11-1, state 11-2, state 11-3, state 11-4, state 11-5, then to state 11-6, then get back to state 11-1, move in circles.
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