CN104410271B - A kind of five conversion specific charge pump multiphase deinterleaving methods realized with three striding capacitances - Google Patents
A kind of five conversion specific charge pump multiphase deinterleaving methods realized with three striding capacitances Download PDFInfo
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- CN104410271B CN104410271B CN201410796040.1A CN201410796040A CN104410271B CN 104410271 B CN104410271 B CN 104410271B CN 201410796040 A CN201410796040 A CN 201410796040A CN 104410271 B CN104410271 B CN 104410271B
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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
-
- 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
Abstract
Switching capacity type Switching Power Supply has the advantages that low EMI, high efficiency, small volume, is the important component of power-supply management system.Patent of the present invention discloses a kind of charge-pump type DC DC converter multiphase deinterleaving methods realized using three striding capacitances, for × 2, × 1, × 2/3, × 1/2 and the multiple voltage such as × 1/3 change ratio, it can make to interweave charge and discharge process more, reduce current spikes and burr, so as to reduce output ripple.
Description
Technical field：
Patent of the present invention covers charge pump DC-DC converter principle, Ripple Suppression technology, discharge and recharge multiphase deinterleaving method.
Background technology：
With continuing to develop for integrated circuit technique, a large amount of appearance of portable mobile termianl are especially in recent years, intelligent
The popularization of the products such as mobile phone, tablet personal computer, GPS, electronic system it is also proposed more requirements to power supply, for example：It is portable
Property, low-power consumption, output stabilization, high efficiency etc., promoted the development of portable electric appts power technology.Electronic system is generally not
It can directly be powered for it by battery or power supply adaptor, and need a voltage modulator to be converted to unstable DC voltage
Stable system power supply power supply.At present, dc-dc is broadly divided into two classes：Linear voltage regulator and Switching Power Supply modulator.Line
Property voltage-stablizer there is low ripple, low noise, design simple, be widely used in the occasion to noise-sensitive, but it also has
It is less efficient and the shortcomings of decompression can only be realized.Switching Power Supply is divided into inductive type and capacitor type again.Wherein, inductive type Switching Power Supply
Energy-storage travelling wave tube is inductance, and advantage is high conversion efficiency, has the disadvantage there is ripple interference in output end, 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, greatly reduces EMI, changes
Efficiency is also higher, has the disadvantage that output end Ripple Noise is larger.
Simulation and radio circuit are generally powered, although this avoids making an uproar for power supply to noise-sensitive using linear stable
Acoustic jamming, but system effectiveness is relatively low.Conventional charge pump-type dc-dc efficiency is higher and without EMI interference, if can solve
Charge-pump type dc-dc, then can be applied to simulation and the radio frequency electrical of noise-sensitive by the problem of certainly its Ripple Noise is larger
Road, so as to improve system effectiveness, this is even more important to portable system.
In order to reduce ripple, a kind of method is one linear stable of concatenation after charge pump, while voltage stabilizing is exported,
Reduce ripple.Due to applying less efficient linear stable in this scheme as the wave filter for suppressing ripple, make whole
Body is less efficient.The method of another conventional reduction charge pump output ripple is that output voltage interweave more, will be basic
Charge pump topology replicates many parts and their discharge and recharge sequential staggers a phase bit, so as to offset ripple.However, this method
The quantity of striding capacitance can be caused to be multiplied.The conversion ratio of some script 1 striding capacitances of need, such as × 1, × 2, × 1/2
Deng, it is only necessary to increase by 1 striding capacitance and achieve that two-phase；And for originally need 2 striding capacitances gain, such as × 3/2,
× 2/3, × 1/3, then need to increase by 2 striding capacitances；By that analogy, if interweaved with 3, need to increase by 4 (totally 6)
Striding capacitance, this will cause the increase of system cost, especially can also extra increased chip pin number to integrated realization
Amount.The present invention proposes a kind of multiphase deinterleaving method for having used three striding capacitances, can be used for × 2, × 1, × 2/3, ×
1/2 changes ratio with the multiple voltage such as × 1/3, and while charge pump switches power-efficient is ensured, the ripple for reducing output is made an uproar
Sound, makes it possible that switching capacity type dc-dc is that simulation and radio circuit are powered.
The content of the invention：
The present invention causes what striding capacitance quantity was multiplied for conventional charge pump-type Switching Power Supply multiphase deinterleaving method
It is not enough, it is proposed that a kind of charge pump discharge and recharge multiphase deinterleaving method realized using three striding capacitances, this method can be applied to
× 2, × 1, × 2/3, × 1/2 with multiple voltage conversion ratios such as × 1/3, realize that leggy interweaves, suppress output ripple.
One contain novel multi-phase deinterleaving method charge pump system schematic diagram such as accompanying drawing 1, it is by switched capacitor array
(2), the module composition such as error amplifier, multi-phase clock generation and Schema control.Although the system in accompanying drawing 1 is to output
Modulation employs pulse frequency modulated (PFM), but it is can also be applied to other types of output voltage modulation system.
Three striding capacitances (6-1,6-2 and 6-3) and 15 are contained in switched capacitor array (2) shown in accompanying drawing 2
Individual switch (5-1 to 5-15).Accompanying drawing 3 to accompanying drawing 7 respectively illustrates × 2, × 1, × 2/3, × 1/2 and the five kinds of conversions of × 1/3 grade
Than the topology status figure of lower switch arrays, wherein × 2 and × 1 conversion is than having 3 states, and × 2/3, × 1/2 and × 1/3 tool
There are 6 states.For simplicity, switch is not drawn in state diagram, three striding capacitances (6-1,6-2 and 6-3) are only depicted
With the annexation between power supply (1), output (3) and ground wire (4).
After system starts, mode control module is dynamically selected voltage conversion according to power supply (1) voltage and output (3) voltage
Than the clock of the driving switch of multi-phase clock generation module and timepiece drive module according to required for being changed than generation specific voltage
Signal.If selected voltage conversion ratio is × 2 or × 1, switched capacitor array sequentially pass 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), are then return to topology status 1 (7-1 or 8-1), circulate past
It is multiple；If selected voltage conversion ratio is × 2/3, × 1/2 or × 1/3, switched capacitor array sequentially passes through the (9- of topology status 1
1st, 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), are then return to
Topology status 1 (9-1,10-1 or 11-1), moves in circles.
From state diagram of the accompanying drawing 3 into accompanying drawing 7, under each voltage conversion ratio, three striding capacitances all pass through phase
Same discharge and recharge sequential, and there is identical phase difference in the discharge and recharge sequential of three striding capacitances, it is achieved thereby that discharge and recharge
The ripples for interweaving, reducing output more.
Brief description of the drawings：
A kind of charge pump DC-DC converter system block diagram for including novel multi-phase deinterleaving method of accompanying drawing 1；
The switched capacitor array topological diagram of accompanying drawing 2；
Topology status figure when the conversion of accompanying drawing 3 is than being × 2；
Topology status figure when the conversion of accompanying drawing 4 is than being × 1；
Topology status figure when the conversion of accompanying drawing 5 is than being × 2/3；
Topology status figure when the conversion of accompanying drawing 6 is than being × 1/2；
Accompanying drawing 7 conversion than be × 1/3 when than topology status figure.
Embodiment：
1. the charge pump system in the present invention is as shown in Figure 1, it is by switched capacitor array (2), error amplifier, multiphase
The module composition such as clock generation and Schema control, its mode modulated to output voltage is not limited.
2. contained in switched capacitor array (2) three striding capacitances (6-1,6-2 and 6-3) and 15 switch (5-1 is extremely
5-15), as shown in Figure 2.Wherein, the top crown of three striding capacitances respectively by switch (5-1), (5-6) and (5-11) and
Input power (1) is connected, while being connected by switching (5-2), (5-7) and (5-12) with output loading (3)；Three striding capacitances
(6-1), (6-2) and (6-3) bottom crown are connected by switching (5-3), (5-8) and (5-13) with ground wire (4) respectively, are led to simultaneously
Switch (5-4), (5-9) and (5-14) is crossed with output loading (3) to be connected；Striding capacitance (6-1), (6-2) and (6-3) passes through switch
(5-5), (5-10) and (5-15) connects into ring topology.
After 3. system starts, mode control module is dynamically selected voltage according to power supply (1) voltage and output (3) voltage and turned
Change ratio, the driving switch of multi-phase clock generation module and timepiece drive module according to required for being changed than generation specific voltage when
Clock signal, makes three striding capacitances pass through identical discharge and recharge sequential, and three discharge and recharge sequential have identical phase difference.
4. if voltage conversion ratio is × 2, switched capacitor array topology sequential (7) as shown in Figure 3, has three states
(7-1,7-2 and 7-3)：
1) bottom crown is connected with power supply (1) and ground wire (4) respectively on first state (7-1), striding capacitance (6-1), flies
It is connected across the top crown of electric capacity (6-2) with output (3), bottom crown is connected with the top crown of striding capacitance (6-3), striding capacitance
The bottom crown of (6-3) is connected with ground wire (4)；
2) bottom crown is connected with power supply (1) and ground wire (4) respectively on second state (7-2), striding capacitance (6-2), flies
It is connected across the top crown of electric capacity (6-3) with output (3), bottom crown is connected with the top crown of striding capacitance (6-1), striding capacitance
The bottom crown of (6-1) is connected with ground wire (4)；
3) bottom crown is connected with power supply (1) and ground wire (4) respectively on the 3rd state (7-3), striding capacitance (6-3), flies
It is connected across the top crown of electric capacity (6-1) with output (3), bottom crown is connected with the top crown of striding capacitance (6-2), striding capacitance
The bottom crown of (6-2) is connected with ground wire (4)；
Switched capacitor array order experience state 7-1, state 7-2, then to state 7-3, state 7-1 is then return to, circulate
Back and forth.
5. if voltage conversion ratio is × 1, switched capacitor array topology sequential (8) is as shown in figure 4, it has three states
(8-1,8-2 and 8-3)：
1) bottom crown is connected with power supply (1) and ground wire (4) respectively on first state (8-1), striding capacitance (6-1), flies
It is connected respectively with output (3) with ground wire (4) across electric capacity (6-2) and (6-3) upper bottom crown；
2) bottom crown is connected with power supply (1) and ground wire (4) respectively on second state (8-2), striding capacitance (6-2), flies
It is connected respectively with output (3) with ground wire (4) across electric capacity (6-1) and (6-3) upper bottom crown；
3) bottom crown is connected with power supply (1) and ground wire (4) respectively on the 3rd state (8-3), striding capacitance (6-3), flies
It is connected respectively with output (3) with ground wire (4) across electric capacity (6-1) and (6-2) upper bottom crown；
Switched capacitor array order experience state 8-1, state 8-2, then to state 8-3, state 8-1 is then return to, circulate
Back and forth.
6. if voltage conversion ratio is × 2/3, switched capacitor array topology sequential (9) is as shown in figure 5, it has six shapes
State (9-1,9-2,9-3,9-4,9-5 and 9-6)：
1) on first state (9-1), striding capacitance (6-1) and (6-2) bottom crown respectively with power supply (1) and output (3)
It is connected, the top crown of striding capacitance (6-3) is hanging, bottom crown is connected or hanging with ground wire (4)；
2) second state (9-2), keeps on striding capacitance (6-2) bottom crown respectively with power supply (1) and exporting (3) phase
Even, striding capacitance (6-3) top crown is connected with output (3), and bottom crown is connected with striding capacitance (6-1) top crown, striding capacitance
(6-1) bottom crown is connected with ground wire (4)；
3) on the 3rd state (9-3), striding capacitance (6-2) and (6-3) bottom crown respectively with power supply (1) and output (3)
It is connected, the top crown of striding capacitance (6-1) is hanging, bottom crown is connected or hanging with ground wire (4)；
4) the 4th state (9-4), keeps on striding capacitance (6-3) bottom crown respectively with power supply (1) and exporting (3) phase
Even, the top crown of striding capacitance (6-1) is connected with output (3), and bottom crown is connected with striding capacitance (6-2) top crown, flies across electricity
Hold (6-2) bottom crown with ground wire (4) to be connected；
5) on the 5th state (9-5), striding capacitance (6-1) and (6-3) bottom crown respectively with power supply (1) and output (3)
It is connected, the top crown of striding capacitance (6-2) is hanging, bottom crown is connected or hanging with ground wire (4)；
6) the 6th state (9-6), keeps on striding capacitance (6-1) bottom crown respectively with power supply (1) and exporting (3) phase
Even, striding capacitance (6-2) top crown is connected with output (3), and bottom crown is connected with striding capacitance (6-3) top crown, 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, is then return to state 9-1, moves in circles.
7. if voltage conversion ratio is × 1/2, switched capacitor array topology sequential (10) is as shown in fig. 6, it has six
State (10-1,10-2,10-3,10-4,10-5 and 10-6)：
1) on first state (10-1), striding capacitance (6-1) and (6-2) bottom crown respectively with power supply (1) and output (3)
It is connected, the upper bottom crown of striding capacitance (6-3) is connected with output (3) with ground wire (4) respectively；
2) second state (10-2), keeps on striding capacitance (6-2) bottom crown respectively with power supply (1) and exporting (3) phase
Even, striding capacitance (6-1) and (6-3) top crown are connected with output (3) and ground wire (4) respectively；
3) on the 3rd state (10-3), striding capacitance (6-2) and (6-3) bottom crown respectively with power supply (1) and output (3)
It is connected, the upper bottom crown of striding capacitance (6-1) is connected with output (3) and ground wire (4) respectively；
4) the 4th state (10-4), keeps on striding capacitance (6-3) bottom crown respectively with power supply (1) and exporting (3) phase
Even, striding capacitance (6-1) and (6-2) upper bottom crown are connected with output (3) and ground wire (4) respectively；
5) on the 5th state (10-5), striding capacitance (6-1) and (6-3) bottom crown respectively with power supply (1) and output (3)
It is connected, the upper bottom crown of striding capacitance (6-2) is connected with output (3) and ground wire (4) respectively；
6) the 6th state (10-6), keeps on striding capacitance (6-1) bottom crown respectively with power supply (1) and exporting (3) phase
Even, bottom crown is connected with exporting (3) and ground wire (4) respectively on striding capacitance (6-2) and (6-3)；
Switched capacitor array order experience state 10-1, state 10-2, state 10-3, state 10-4, state 10-5, then arrive
State 10-6, is then return to state 10-1, moves in circles.
8. if voltage conversion ratio is × 1/3, switched capacitor array topology sequential (11) is as shown in fig. 7, it has six
State (11-1,11-2,11-3,11-4,11-5 and 11-6)：
1) on first state (11-1), striding capacitance (6-1) and (6-2) bottom crown respectively with output (3) and ground wire (4)
It is connected, at least one is hanging for the upper bottom crown of striding capacitance (6-3), and top crown connects power supply (1) or hanging, and bottom crown hangs
Empty or connection output (3)；
2) bottom crown is respectively with exporting (3) and ground wire (4) phase on second state (11-2), holding striding capacitance (6-2)
Even, striding capacitance (6-3) top crown is connected with power supply (1), and bottom crown is connected with striding capacitance (6-1) top crown, striding capacitance
(6-1) bottom crown is connected with output (3)；
3) on the 3rd state (11-3), striding capacitance (6-2) and (6-3) bottom crown respectively with output (3) and ground wire (4)
It is connected, at least one is hanging for the upper bottom crown of striding capacitance (6-1), and top crown connects power supply (1) or hanging, and bottom crown hangs
Empty or connection output (3)；
4) bottom crown is respectively with exporting (3) and ground wire (4) phase on the 4th state (11-4), holding striding capacitance (6-3)
Even, the top crown of striding capacitance (6-1) is connected with power supply (1), and bottom crown is connected with striding capacitance (6-2) top crown, flies across electricity
Hold (6-2) bottom crown with output (3) to be connected；
5) on the 5th state (11-5), striding capacitance (6-1) and (6-3) bottom crown respectively with output (3) and ground wire (4)
It is connected, at least one is hanging for the upper bottom crown of striding capacitance (6-2), and top crown connects power supply (1) or hanging, and bottom crown hangs
Empty or connection output (3)；
6) bottom crown is respectively with exporting (3) and ground wire (4) phase on the 6th state (11-6), holding striding capacitance (6-1)
Even, the top crown of striding capacitance (6-2) is connected with power supply (1), and bottom crown is connected with striding capacitance (6-3) top crown, flies across electricity
Hold (6-3) bottom crown with output (3) to be connected；
Switched capacitor array order experience state 11-1, state 11-2, state 11-3, state 11-4, state 11-5, then arrive
State 11-6, is then return to state 11-1, moves in circles.
Reference numerals list：
Vin input supply voltages
Vout output voltages
Vf feedback voltages
Vref reference voltages
Vcon output voltage error amplifiers
Vbat input powers
R1Output divider resistance 1
R2Output divider resistance 2
RLLoad resistance
CLLoad capacitance
1 input power
2 switched capacitor arrays
3 output ends
4 ground wires
5-1~5-15 switches 1~15
6-1~6-3 striding capacitances 1~3
Topology status figure when 7 conversions are than being × 2
Topology status figure when 8 conversions are than being × 1
Topology status figure when 9 conversions are than being × 2/3
Topology status figure when 10 conversions are than being × 1/2
Topology status figure when 11 conversions are than being × 1/3
State 1~3 when 7-1~7-3 conversions are than being × 2
State 1~3 when 8-1~8-3 conversions are than being × 1
State 1~6 when 9-1~9-6 conversions are than being × 2/3
State 1~6 when 10-1~10-6 conversions are than being × 1/2
State 1~6 when 11-1~11-6 conversions are than being × 1/3
Claims (7)
1. a kind of charge pump discharge and recharge multiphase deinterleaving method for being used to suppress charge pump DC-DC converter output ripple, its feature
It is that charge pump has used three striding capacitances：First striding capacitance (6-1), the second striding capacitance (6-2) and the 3rd fly across electricity
Hold (6-3), the sequential of each striding capacitance discharge and recharge has phase difference, the output current of leggy intertexture obtained in output end,
The top crown of first striding capacitance (6-1), second striding capacitance (6-2) and the 3rd striding capacitance (6-3) point
It is not connected by first switch (5-1), the 6th switch (5-6) and the 11st switch (5-11) with input power (1), is passed through simultaneously
Second switch (5-2), the 7th switch (5-7) and the 12nd switch (5-12) are connected with output loading (3)；Described first flies across electricity
Hold the bottom crown of (6-1), second striding capacitance (6-2) and the 3rd striding capacitance (6-3) respectively by the 3rd switch
(5-3), the 8th switch (5-8) and the 13rd switch (5-13) are connected with ground wire (4), while passing through the 4th switch (5-4), the 9th
Switch (5-9) and the 14th switch (5-14) are connected with output loading (3)；First striding capacitance (6-1), described second fly
Opened across electric capacity (6-2) and the 3rd striding capacitance (6-3) by the 5th switch (5-5), the tenth switch (5-10) and the 15th
Close (5-15) and connect into ring topology.
2. for charge pump discharge and recharge multiphase deinterleaving method described in claim 1, it is characterised in that opened up using switched capacitor array
Flutter sequential (7,8,9,10,11) to realize for × 2, the discharge and recharge of × 1, × 2/3, × 1/2 and × 1/3 different voltage conversion ratios is more
Interweave.
3. for charge pump discharge and recharge multiphase deinterleaving method described in claim 2, the switch electricity for realizing × 2 voltage conversion ratios
Hold array topology sequential (7), be characterized as that it has three states (7-1,7-2 and 7-3)：
Bottom crown is connected with power supply (1) and ground wire (4) respectively on first state (7-1), first striding capacitance (6-1),
The top crown of second striding capacitance (6-2) is connected with output (3), and bottom crown is upper with the 3rd striding capacitance (6-3)
Pole plate is connected, and the bottom crown of the 3rd striding capacitance (6-3) is connected with ground wire (4)；
Bottom crown is connected with power supply (1) and ground wire (4) respectively on second state (7-2), second striding capacitance (6-2),
The top crown of 3rd striding capacitance (6-3) is connected with output (3), and bottom crown is upper with first striding capacitance (6-1)
Pole plate is connected, and the bottom crown of first striding capacitance (6-1) is connected with ground wire (4)；
Bottom crown is connected with power supply (1) and ground wire (4) respectively on 3rd state (7-3), the 3rd striding capacitance (6-3),
The top crown of first striding capacitance (6-1) is connected with output (3), and bottom crown is upper with second striding capacitance (6-2)
Pole plate is connected, and the bottom crown of second 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, be then return to state 7-1, move in circles.
4. for charge pump discharge and recharge multiphase deinterleaving method described in claim 2, the switch electricity for realizing × 1 voltage conversion ratio
Hold array topology sequential (8), be characterized as that it has three states (8-1,8-2 and 8-3)：
Bottom crown is connected with power supply (1) and ground wire (4) respectively on first state (8-1), first striding capacitance (6-1),
The upper bottom crown of second striding capacitance (6-2) and the 3rd striding capacitance (6-3) is respectively with exporting (3) and ground wire (4)
It is connected；
Bottom crown is connected with power supply (1) and ground wire (4) respectively on second state (8-2), second striding capacitance (6-2),
The upper bottom crown of first striding capacitance (6-1) and the 3rd striding capacitance (6-3) is respectively with exporting (3) and ground wire (4)
It is connected；
Bottom crown is connected with power supply (1) and ground wire (4) respectively on 3rd state (8-3), the 3rd striding capacitance (6-3),
The upper bottom crown of first striding capacitance (6-1) and second striding capacitance (6-2) is respectively with exporting (3) and ground wire (4)
It is connected；
Switched capacitor array order experience state 8-1, state 8-2, then to state 8-3, be then return to state 8-1, move in circles.
5. for charge pump discharge and recharge multiphase deinterleaving method described in claim 2, the switch for realizing × 2/3 voltage conversion ratio
Capacitor array topology sequential (9), is characterized as that it has six states (9-1,9-2,9-3,9-4,9-5 and 9-6)：
Bottom crown is distinguished on first state (9-1), first striding capacitance (6-1) and second striding capacitance (6-2)
It is connected with power supply (1) and output (3), the top crown of the 3rd striding capacitance (6-3) is hanging, and bottom crown is connected with ground wire (4)
Or it is hanging；
Second state (9-2), keep on the second striding capacitance striding capacitance (6-2) bottom crown respectively with power supply (1) and
Export (3) to be connected, the 3rd striding capacitance (6-3) top crown is connected with output (3), bottom crown and first striding capacitance
(6-1) top crown is connected, and the first striding capacitance (6-1) bottom crown is connected with ground wire (4)；
Bottom crown is distinguished on 3rd state (9-3), second striding capacitance (6-2) and the 3rd striding capacitance (6-3)
It is connected with power supply (1) and output (3), the top crown of first striding capacitance (6-1) is hanging, and bottom crown is connected with ground wire (4)
Or it is hanging；
4th state (9-4), keeps on the 3rd striding capacitance (6-3) bottom crown respectively with power supply (1) and exporting (3) phase
Even, the top crown of first striding capacitance (6-1) is connected with output (3), on bottom crown and second striding capacitance (6-2)
Pole plate is connected, and the second striding capacitance (6-2) bottom crown is connected with ground wire (4)；
Bottom crown is distinguished on 5th state (9-5), first striding capacitance (6-1) and the 3rd striding capacitance (6-3)
It is connected with power supply (1) and output (3), the top crown of second striding capacitance (6-2) is hanging, and bottom crown is connected with ground wire (4)
Or it is hanging；
6th state (9-6), keeps on first striding capacitance (6-1) bottom crown respectively with power supply (1) and exporting (3) phase
Even, the second striding capacitance (6-2) top crown is connected with output (3), bottom crown and pole on the 3rd striding capacitance (6-3)
Plate is connected, and the 3rd 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,
State 9-1 is then return to, is moved in circles.
6. for charge pump discharge and recharge multiphase deinterleaving method described in claim 2, the switch for realizing × 1/2 voltage conversion ratio
Capacitor array topology sequential (10), is characterized as that it has six states (10-1,10-2,10-3,10-4,10-5 and 10-6)：
Bottom crown is distinguished on first state (10-1), first striding capacitance (6-1) and second striding capacitance (6-2)
It is connected with power supply (1) and output (3), the upper bottom crown of the 3rd striding capacitance (6-3) is respectively with exporting (3) and ground wire (4)
It is connected；
Second state (10-2), keeps on second striding capacitance (6-2) bottom crown respectively with power supply (1) and exporting (3)
It is connected, first striding capacitance (6-1) and the 3rd striding capacitance (6-3) top crown are respectively with exporting (3) and ground wire (4)
It is connected；
Bottom crown is distinguished on 3rd state (10-3), second striding capacitance (6-2) and the 3rd striding capacitance (6-3)
It is connected with power supply (1) and output (3), the upper bottom crown of first striding capacitance (6-1) is respectively with exporting (3) and ground wire (4)
It is connected；
4th state (10-4), keeps on the 3rd striding capacitance (6-3) bottom crown respectively with power supply (1) and exporting (3)
It is connected, the upper bottom crown of first striding capacitance (6-1) and second striding capacitance (6-2) is respectively with exporting (3) and ground
Line (4) is connected；
Bottom crown is distinguished on 5th state (10-5), first striding capacitance (6-1) and the 3rd striding capacitance (6-3)
It is connected with power supply (1) and output (3), the upper bottom crown of second striding capacitance (6-2) is respectively with exporting (3) and ground wire (4)
It is connected；
6th state (10-6), keeps on first striding capacitance (6-1) bottom crown respectively with power supply (1) and exporting (3)
It is connected, bottom crown is respectively with exporting (3) and ground wire on second striding capacitance (6-2) and the 3rd striding capacitance (6-3)
(4) it is connected；
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, is then return to state 10-1, moves in circles.
7. for charge pump discharge and recharge multiphase deinterleaving method described in claim 2, the switch for realizing × 1/3 voltage conversion ratio
Capacitor array topology sequential (11), is characterized as that it has six states (11-1,11-2,11-3,11-4,11-5 and 11-6)：
Bottom crown is distinguished on first state (11-1), first striding capacitance (6-1) and second striding capacitance (6-2)
Be connected with output (3) and ground wire (4), the upper bottom crown of the 3rd striding capacitance (6-3) at least one be hanging, upper pole
Plate connects power supply (1) or hanging, and bottom crown is hanging or connection exports (3)；
Bottom crown is respectively with exporting (3) and ground wire (4) on second state (11-2), holding second striding capacitance (6-2)
It is connected, the 3rd striding capacitance (6-3) top crown is connected with power supply (1), on bottom crown and first striding capacitance (6-1)
Pole plate is connected, and the first striding capacitance (6-1) bottom crown is connected with output (3)；
Bottom crown is distinguished on 3rd state (11-3), second striding capacitance (6-2) and the 3rd striding capacitance (6-3)
Be connected with output (3) and ground wire (4), the upper bottom crown of first striding capacitance (6-1) at least one be hanging, upper pole
Plate connects power supply (1) or hanging, and bottom crown is hanging or connection exports (3)；
Bottom crown is respectively with exporting (3) and ground wire (4) on 4th state (11-4), holding the 3rd striding capacitance (6-3)
It is connected, the top crown of first striding capacitance (6-1) is connected with power supply (1), bottom crown and second striding capacitance (6-2)
Top crown is connected, and the second striding capacitance (6-2) bottom crown is connected with output (3)；
Bottom crown is distinguished on 5th state (11-5), first striding capacitance (6-1) and the 3rd striding capacitance (6-3)
Be connected with output (3) and ground wire (4), the upper bottom crown of second striding capacitance (6-2) at least one be hanging, upper pole
Plate connects power supply (1) or hanging, and bottom crown is hanging or connection exports (3)；
Bottom crown is respectively with exporting (3) and ground wire (4) on 6th state (11-6), holding first striding capacitance (6-1)
It is connected, the top crown of second striding capacitance (6-2) is connected with power supply (1), bottom crown and the 3rd striding capacitance (6-3)
Top crown is connected, and the 3rd 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, is then return to state 11-1, moves in circles.
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| CN106208679A (en) * | 2016-07-15 | 2016-12-07 | 武汉华星光电技术有限公司 | A kind of voltage conversion circuit and liquid crystal display drive chip |
| CN107422779B (en) * | 2017-08-21 | 2019-02-22 | 南京矽力杰半导体技术有限公司 | Voltage regulator |
| TWI662390B (en) * | 2018-03-01 | 2019-06-11 | 新唐科技股份有限公司 | Digital control system for voltage regulation and method thereof |
| TWI674490B (en) * | 2018-06-07 | 2019-10-11 | 新唐科技股份有限公司 | Control system of switch voltage regulator |
| CN109039058B (en) * | 2018-08-09 | 2020-06-26 | 安徽矽磊电子科技有限公司 | Voltage converter based on configurable switched capacitor |
| US10958161B2 (en) * | 2019-07-31 | 2021-03-23 | Nxp B.V. | Multi-phase high conversion ratio switched capacitor power converter |
| CN111682754B (en) * | 2020-06-09 | 2022-02-15 | 杭州艾诺半导体有限公司 | Hybrid power converter |
| CN113098264A (en) * | 2021-04-09 | 2021-07-09 | 华中科技大学 | Switch capacitor-differential switch power supply composite DC-DC converter |
| CN114710028B (en) * | 2022-06-02 | 2022-09-02 | 浙江大学杭州国际科创中心 | Power supply switching system and switching method |
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| US7190598B1 (en) * | 2005-09-02 | 2007-03-13 | Texas Instruments Incorporated | Three-phase low noise charge pump and method |
| EP2136459A1 (en) * | 2008-06-18 | 2009-12-23 | Intégration Dolphin Inc. | Charge pump circuit |
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