CN202435267U - Boosting circuit - Google Patents
Boosting circuit Download PDFInfo
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- CN202435267U CN202435267U CN2012200285479U CN201220028547U CN202435267U CN 202435267 U CN202435267 U CN 202435267U CN 2012200285479 U CN2012200285479 U CN 2012200285479U CN 201220028547 U CN201220028547 U CN 201220028547U CN 202435267 U CN202435267 U CN 202435267U
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Abstract
The utility model provides a boosting circuit comprising a first flying capacitor and a second flying capacitor, wherein the anode of the first flying capacitor is connected with a voltage input end through a first switch and connected with a voltage output end through a fifth switch; the cathode of the first flying capacitor is connected with the voltage input end through a fourth switch and connected with a ground end through a sixth switch and a third switch; the anode of the second flying capacitor is connected with the voltage output end through a seventh switch, connected with the cathode of the first flying capacitor through a second switch, connected with the voltage input end through the second switch and the fourth switch and connected with the cathode of the second flying capacitor through the second switch and the sixth switch; and the cathode of the second flying capacitor is connected with the cathode of the first flying capacitor through the sixth switch, connected with the voltage input end through the sixth switch and the fourth switch and connected with the ground end through the third switch. By using the boosting circuit, the problem that boosting cannot be realized by using fewer capacitors is solved.
Description
Technical field
The utility model relates to electronic applications, in particular to a kind of booster circuit.
Background technology
As a kind of power supply change-over device, charge pump circuit needing to be widely used in the place of voltage conversion.At present, common charge pump has 2 times of charge pumps that boost and 1.5 times of charge pumps that boost etc.Along with the extensive use of charge pump, to the efficient of charge pump require increasingly highly, 1.33 times of boosting charge pumps also occur thereupon.In order when realizing 1.33x boosting charge pump doubly, to keep high operating efficiency, mainly there are following several kinds of problems in booster circuit of the prior art:
1) generally need fly electric capacity (Flying Capacitor) and the switch more than ten is realized booster circuit, yet the quantity of electric capacity and switch is direct increase production cost too much with three outsides.
2) in the booster circuit of prior art, the general using three phase place methods of boosting realize 1.33 times boosting, and sort circuit has only time of 2/3 to output electric current to be provided in one-period, makes that the efficient of booster circuit is lower.
3) for 1.33 times above-mentioned booster circuit; According to first flying the situation of change sketch map that electric capacity (C1) and second flies electric capacity (C2) voltage in the booster circuit of three phase places as shown in Figure 1; Can find out: booster circuit flies electric capacity (C1) to first and charges in first phase place; When the charging of first phase place finished, the voltage Vc1 at C1 two ends was 1/3 of an input voltage vin, and the voltage Vc2 at C2 two ends is 2/3 of an input voltage vin; In second phase place, C1 is discharged, when second phase place finished, the voltage at C1 two ends was 0, and the voltage Vc2 at C2 two ends is 2/3 of an input voltage vin; In first phase place of third phase position and next cycle,, that is to say that continuous two phase places are charged to C1 to the C1 charging; And only with a phase time C1 is discharged; Make that charging amplitude and the discharge amplitude on second phase place of C1 on first phase place and third phase position is inconsistent, that is, charge rate and the discharge rate of C1 are inconsistent; Thereby cause output voltage ripple bigger, reduced the circuit performance of booster circuit.
To above-mentioned problem, effective solution is not proposed as yet at present.
The utility model content
The utility model provides a kind of booster circuit, how to solve at least in the prior art under the prerequisite that guarantees the booster performance, utilizes less electric capacity to realize the technical problem of boosting.
An aspect according to the utility model provides a kind of booster circuit, comprising: first flies electric capacity, first fly electric capacity positive pole link to each other with voltage input end through first switch, first fly electric capacity positive pole pass through the 5th switch and link to each other with voltage output end; First fly electric capacity negative pole link to each other with voltage input end through the 4th switch, first fly electric capacity negative pole pass through the 6th switch and link to each other with the ground end with the 3rd switch; Second flies electric capacity; Second fly electric capacity positive pole close through minion and link to each other with voltage output end; Second fly electric capacity positive pole link to each other through the negative pole that second switch and first flies electric capacity; Second fly electric capacity positive pole link to each other with voltage input end with the 4th switch through second switch, second fly electric capacity positive pole link to each other with the negative pole that the 6th switch and second flies electric capacity through second switch, second fly electric capacity negative pole link to each other through the negative pole that the 6th switch and first flies electric capacity; Second fly electric capacity negative pole link to each other with voltage input end with the 4th switch through the 6th switch, second fly electric capacity negative pole pass through the 3rd switch and link to each other with the ground end.
Preferably; First switch, second switch and the 3rd switch are closure state on first phase place in cycle; The 4th switch, the 5th switch, the 6th switch and minion are closed and on first phase place, are opening; Wherein, voltage input end, first switch, first fly electric capacity, second switch, second flies electric capacity, the 3rd switch and ground end and on first phase place, constitutes the first phase place charging circuit.
Preferably; The 4th switch and the 5th switch are closure state on second phase place in cycle; First switch, second switch, the 3rd switch, the 6th switch and minion are closed and on second phase place, are opening; Wherein, voltage input end, the 4th switch, first fly electric capacity, the 5th switch and voltage output end and on second phase place, constitute the second phase place discharge circuit.
Preferably; First switch, the 6th switch and minion are closed and on the third phase position in cycle, are closure state; Second switch, the 3rd switch, the 4th switch and the 5th switch are opening on the third phase position; Wherein, voltage input end, first switch, first fly electric capacity, the 6th switch, second flies electric capacity, minion pass and voltage output end and on the third phase position, constitutes third phase position charge-discharge circuit.
Preferably; The 4th switch and the 5th switch are closure state on the 4th phase place in cycle; First switch, second switch, the 3rd switch, the 6th switch and minion are closed and on the 4th phase place, are opening; Wherein, voltage input end, the 4th switch, first fly electric capacity, the 5th switch and voltage output end and on the 4th phase place, constitute the 4th phase place discharge circuit.
Preferably; Booster circuit also comprises: the switch control assembly; Wherein, The switch control assembly comprises: first output unit is connected through connecting line and first switch, second switch, the 3rd switch, the 4th switch, the 5th switch, the 6th switch and the minion pass of on first phase place, transmitting first control signal; Second output unit is connected through connecting line and first switch, second switch, the 3rd switch, the 4th switch, the 5th switch, the 6th switch and the minion pass of on second phase place, transmitting second control signal; The 3rd output unit is connected through connecting line and first switch, second switch, the 3rd switch, the 4th switch, the 5th switch, the 6th switch and the minion pass of on the third phase position, transmitting the 3rd control signal; The 4th output unit is connected through connecting line and first switch, second switch, the 3rd switch, the 4th switch, the 5th switch, the 6th switch and the minion pass of on the 4th phase place, transmitting the 3rd control signal.
Preferably; The switch control assembly also comprises: the sequential generation unit is connected with the 4th output unit with first output unit, second output unit, the 3rd output unit respectively through 4 road connecting lines of distinguishing 4 road clock signals that the transmitting continuous time is identical, phase place is different.
Preferably, at least one of first switch, second switch, the 3rd switch, the 4th switch, the 5th switch, the 6th switch and the minion Central Shanxi Plain is the MOS switching tube.
Preferably, first fly electric capacity and have with second and fly the identical structure of electric capacity.
Preferably, second fly electric capacity and first and fly electric capacity and have identical capacitance.
In the utility model, fly electric capacity and seven switches have formed booster circuit through two, can carry out the control of different switch/closure through splitting to close, the booster circuit of formation out of phase simultaneously.The utility model has solved correlation technique and can't under the prerequisite that guarantees the booster performance, utilize less electric capacity to realize the problem of boosting; Under the situation of utilizing less electric capacity and switch; Realize dynamical booster circuit, guaranteed the performance of booster circuit, reduced production cost.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the voltage sketch map that flies electric capacity two ends pressure drop in 3 phase places of 3 phase place booster circuits in the correlation technique;
Fig. 2 is a kind of preferred circuit sketch map according to the utility model embodiment booster circuit;
Fig. 3 is the on off state sketch map according to first phase place of the utility model embodiment booster circuit;
Fig. 4 is the voltage sketch map that flies electric capacity two ends pressure drop in 4 phase places according to the 4 phase place booster circuits of the utility model embodiment;
Fig. 5 is the on off state sketch map according to second phase place of the utility model embodiment booster circuit;
Fig. 6 is the on off state sketch map according to the third phase position of the utility model embodiment booster circuit;
Fig. 7 is the on off state sketch map according to the 4th phase place of the utility model embodiment booster circuit;
Fig. 8 is the another kind of voltage sketch map that flies electric capacity two ends pressure drop in 4 phase places according to 4 phase place booster circuits of the embodiment of the invention.
Embodiment
Hereinafter will and combine embodiment to specify the utility model with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
As shown in Figure 2; The utility model provides a kind of preferred booster circuit; This booster circuit comprises: first flies electric capacity (C1); First fly electric capacity (C1) positive pole link to each other with voltage input end (Vin) through first switch (S1), first fly electric capacity (C1) positive pole pass through the 5th switch (S5) and link to each other with voltage output end (Vout); First fly electric capacity (C1) negative pole link to each other with voltage input end (Vin) through the 4th switch (S4), first fly electric capacity (C1) negative pole pass through the 6th switch (S6) and link to each other with the ground end with the 3rd switch (S3); Second flies electric capacity (C2); Second fly electric capacity (C2) positive pole close (S7) through minion and link to each other with voltage output end (Vout); Second fly electric capacity (C2) positive pole link to each other through the negative pole that second switch (S2) and first flies electric capacity (C1); Second fly electric capacity (C2) positive pole link to each other with voltage input end (Vin) with, the 4th switch (S4) through second switch (S2); Second fly electric capacity (C2) positive pole link to each other with the negative pole that the 6th switch (S6) and second flies electric capacity (C2) through second switch (S2); Second fly electric capacity (C2) negative pole through linking to each other with negative pole that the 6th switch (S6) and first flies electric capacity (C1), second fly electric capacity (C2) negative pole link to each other with voltage input end (Vin) with the 4th switch (S4) through the 6th switch (S6), second fly electric capacity (C2) negative pole also pass through the 3rd switch (S3) and link to each other with the ground end.
Preferably, a parallelly connected filter capacitor (Cout) between voltage output end (Vout) and the ground end.
In above-mentioned preferred implementation, fly electric capacity and seven switches have formed booster circuit through two, can carry out the control of different switch/closure through splitting to close, the booster circuit of formation out of phase simultaneously.Present embodiment has solved correlation technique can't be under the prerequisite that guarantees the booster performance; Utilize less electric capacity to realize the problem of boosting, reached under the situation of utilizing less electric capacity and switch, realize booster circuit; Guarantee the performance of booster circuit, reduced production cost.
In the booster circuit shown in the foregoing description; Through on the out of phase of one-period, controlling the unlatching of each switch or closing; Make on out of phase to constitute different charge-discharge circuits with various combination in the switch, thereby obtain the operating voltage that needs with storage and transfer that different conditions carries out energy by the above-mentioned electric capacity that flies.According to booster circuit shown in Figure 2; Preferably; Can be after the operating voltage of the perfectly straight stream of Vin termination, the different On/Off combination according to switch S 1-S7 forms 4 phase places that time span is identical in one-period; Repeat the cycle that these 4 phase places are formed, thereby guarantee the direct voltage that can obtain continuing at Vout.
Below will combine accompanying drawing to describe 4 circuit connection structures under the out of phase.
1) first phase place (Phase_1): as shown in Figure 3; S1, S2 and S3 are closure state on first phase place in cycle; S4, S5, S6 and S7 are opening on first phase place, wherein, Vin, S1, C1, S2, C2, S3 and ground end constitute the first phase place charging circuit on first phase place.Preferably, hereinafter is represented the voltage at C1 two ends with Vc1, representes the voltage at C2 two ends with Vc2.As shown in Figure 4, charge on first phase place, for C1 and C2, wherein preferred, the pressure drop Vc1 at C1 two ends is since 0 charging, and the pressure drop Vc2 at C2 two ends begins charging from 1/3Vin.When charging finished, the pressure drop at C1 two ends was 1/3Vin, and the pressure drop at C2 two ends is 2/3Vin.
The first phase place charging circuit to shown in Figure 3 can obtain following relational expression according to Kirchhoff's law:
Vin＝Vc1+Vc2。(formula 1)
2) second phase place (Phase_2): as shown in Figure 5; S4 and S5 are closure state on second phase place in cycle; S1, S2, S3, S6 and S7 are opening on second phase place, wherein, Vin, S4, C1, S5 and Vout constitute the second phase place discharge circuit on second phase place.As shown in Figure 4, on second phase place, voltage is provided for voltage output end (Vout) through C1 and Vin; When discharge finished, the pressure drop Vc1 at C1 two ends was 0, in whole second phase place; The ceiling voltage of output is 4/3Vin, and the pressure drop Vc2 at C2 two ends keeps 2/3Vin.
The second phase place discharge circuit to shown in Figure 5 can obtain following relational expression according to Kirchhoff's law:
Vout＝Vin+Vc1。(formula 2)
3) third phase position (Phase_3): as shown in Figure 6; S1, S6 and S7 are closure state on the third phase position in cycle; S2, S3, S4 and S5 are opening on the third phase position, wherein, Vin, S1, C1, S6, C2, S7 and Vout constitute third phase position charge-discharge circuit on the third phase position.As shown in Figure 4, on the third phase position, C1 is charged through Vin, wherein, C1 charges since 0; In addition, on the third phase position, voltage is provided for voltage output end (Vout) through the discharge of C2, discharges and recharges in the third phase position when finishing, the pressure drop Vc1 at C1 two ends is 1/3Vin, and the pressure drop Vc2 at C2 two ends is 1/3Vin.
Third phase position charge-discharge circuit to shown in Figure 6 can obtain following relational expression according to Kirchhoff's law:
Vout＝Vin-Vc1+Vc2。(formula 3)
4) the 4th phase place (Phase_4): as shown in Figure 7; S4 and S5 are closure state on the 4th phase place in cycle; S1, S2, S3, S6 and S7 are opening on the 4th phase place, wherein, Vin, S4, C1, S5 and Vout constitute the 4th phase place discharge circuit on the 4th phase place.As shown in Figure 4, the 4th phase place is voltage to be provided for voltage output end (Vout) through the discharge of C1, and when the discharge of the 4th phase place finished, the pressure drop Vc1 at C1 two ends was 0, and the pressure drop Vc2 at C2 two ends is 1/3Vin.
The 4th phase place charge-discharge circuit to shown in Figure 7 can obtain following relational expression according to Kirchhoff's law:
Vout＝Vin+Vc1。(formula 4)
In above-mentioned Fig. 3-four phase places shown in Figure 7,, can release according to formula 2 and formula 3:
2Vc1＝Vc2。(formula 5)
Again formula 5 is distinguished substitution formula 1 and formula 4, thereby releases:
Vc1＝1/3Vin。(formula 6)
Vout＝4Vc1。(formula 7)
With formula 6 substitution formula 7, finally obtain: Vout=1.33Vin again.
In above-mentioned preferred implementation, utilize two to fly electric capacity and four charge/discharge technology mutually, reached from the high-performance conversion of the 1.33x times of voltage that inputs to output.All C1 is discharged in second phase place and the 4th phase place, thereby avoided in correlation technique C1 to be switched, improved the efficient of booster circuit by the poor efficiency phase place of double charging ( phase place 1 and 3).Simultaneously, in the utility model, at all outside output voltage of second phase place, third phase position and the 4th phase place; That is to say 3/4 outside output voltage of cycle, thereby improved the performance (2/3 outside output voltage of cycle in the prior art) of the integral body of whole booster circuit, further; Fig. 4 compares and can find with Fig. 1, in the utility model for the change in voltage situation at the booster circuit of the present invention's 4 phase places C1 and C2 two ends in four phase places; All C1 is discharged in second phase place and the 4th phase place, thereby make two phase place chargings two phase place discharges; The amplitude that discharges and recharges that has guaranteed C1 is consistent; Make that the ripple of final output voltage is less, chip receives the influence of parasitic parameter of circuit board also less, has improved the circuit performance of whole booster circuit.
Preferably, the change procedure that flies electric capacity two ends pressure drop in 4 phase places as shown in Figure 4 is a kind of example, and the present invention is not limited only to this; Starting voltage when flying capacitor C 1 with the C2 charging and ceiling voltage can be for removing other values shown in the foregoing description, and be for example, as shown in Figure 8; Starting voltage when flying capacitor C 1 charging can be V3; Ceiling voltage during charging can be V1, and the starting voltage when flying capacitor C 2 chargings can be V4, and the ceiling voltage during charging can be V2.
When first phase place finishes, V1+V2=Vin (formula 8), wherein, on first phase place, the amplitude of variation of Vc1 and Vc2 is identical, that is, and V1-V3=V2-V4 (formula 9) (in the present embodiment, suppose to fly capacitor C 1 identical) with the capacitance that flies capacitor C 2.
When second phase place finishes, V3=Vout-Vin (formula 10);
When finishing in the third phase position, Vin-V1+V4=Vout (formula 11).
Four equations through shown in the formula 8-11 can solve:
V1＝1/3Vin；
V2＝2/3Vin；
V3＝Vout-Vin；
V4＝Vout-2/3Vin；
V1-V3＝V2-V4＝4/3Vin-Vout。
That is to say, when first phase place finishes, first fly the electric capacity two ends pressure drop Vc1 be that the pressure drop Vc2 that 1/3, the second of input voltage vin flies the electric capacity two ends is 2/3 of an input voltage vin;
When second phase place finishes, first fly the electric capacity two ends pressure drop Vc1 deduct input voltage vin for output voltage V out, second fly the electric capacity two ends pressure drop Vc2 be 2/3 of input voltage vin;
When finish the third phase position, first fly the electric capacity two ends pressure drop Vc1 be that the pressure drop Vc2 that 1/3, the second of input voltage vin flies the electric capacity two ends deducts 2/3 input voltage vin for output voltage V out;
When the 4th phase place finishes, first fly the electric capacity two ends pressure drop Vc1 deduct input voltage vin for output voltage V out, second fly the electric capacity two ends pressure drop Vc2 deduct 2/3 input voltage vin for output voltage V out.
For example, if Vout=Vin, V3=0 then, V4=1/3Vin, V1-V3=V2-V4=1/3Vin.
In preferred implementation of the utility model, booster circuit can also comprise: the switch control assembly is used for the state of each switch in the loop of boosting is controlled to form 1.33 times boost.
Preferably, switch control assembly: be used for first phase place in the cycle of boosting, produce first control signal, control S1, S2 and S3 are closure state, and rest switch is an off-state; On second phase place in the cycle of boosting, produce second control signal, control S4 and S5 are closure state, rest switch is an off-state; On the third phase position in the cycle of boosting, produce the 3rd control signal, control S1, S6 and S7 are closure state, rest switch is an off-state; On the 4th phase place in the cycle of boosting, produce the 4th control signal, control S4 and S5 are closure state, rest switch is an off-state.
In preferred implementation of the utility model; In order to be implemented in the one-period; The time that four kinds of phase places can occur in order and each phase place keeps is identical; A sequential generation unit can be set; This sequential generation unit is controlled the switch control assembly respectively through 4 road connecting lines of 4 road clock signals that the transmitting continuous time is identical respectively, phase place is different and is produced first control signal, second control signal, the 3rd control signal and the 4th control signal, thereby controls the time that each phase place continues, and the time span in the cycle of boosting.
In preferred implementation of the utility model, at least one among the switch S 1-S7 can be the MOS switching tube.In above-mentioned preferred implementation,, thereby guaranteed the stability of circuit because the MOS switching tube can satisfy the requirement of higher operational frequency.
In preferred implementation of the utility model, C1 has the structure identical with C2, and preferred, C1 has identical capacitance with C2.
From above description, can find out that the utility model has been realized following technique effect:
1) proposes a kind of new four methods of boosting mutually, can when adopting two outsides to fly electric capacity, effectively improve the electric charge pump performance.
2) electric capacity that adopts and the quantity of switch are fewer, have reduced production cost.
3) there is the time in 3/4 cycle that voltage is being provided, improved the overall performance of whole booster circuit.
4) amplitude of variation that discharge and recharge of voltage on 4 phase places of one-period that flies the electric capacity two ends equate, thereby make output ripple less, and it is also less that chip is influenced by the parasitic parameter of circuit board.
More than be merely the preferred embodiment of the utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (10)
1. a booster circuit is characterized in that, comprising:
First flies electric capacity, said first fly electric capacity positive pole link to each other with voltage input end through first switch, said first fly electric capacity positive pole pass through the 5th switch and link to each other with voltage output end; Said first fly electric capacity negative pole link to each other with said voltage input end through the 4th switch, said first fly electric capacity negative pole pass through the 6th switch and link to each other with the ground end with the 3rd switch;
Second flies electric capacity; Said second fly electric capacity positive pole close through minion and link to each other with said voltage output end; Said second fly electric capacity positive pole link to each other through the negative pole that second switch and said first flies electric capacity; Said second fly electric capacity positive pole link to each other with said voltage input end with said the 4th switch through said second switch; Said second fly electric capacity positive pole link to each other with the negative pole that said the 6th switch and said second flies electric capacity through said second switch; Said second fly electric capacity negative pole link to each other through the negative pole that said the 6th switch and said first flies electric capacity, said second fly electric capacity negative pole link to each other with said voltage input end with said the 4th switch through said the 6th switch, said second fly electric capacity negative pole link to each other with holding saidly through said the 3rd switch.
2. booster circuit according to claim 1; It is characterized in that; Said first switch, said second switch and said the 3rd switch are closure state on first phase place in cycle; Said the 4th switch, said the 5th switch, said the 6th switch and said minion are closed and on said first phase place, are opening; Wherein, said voltage input end, said first switch, said first fly that electric capacity, said second switch, said second fly electric capacity, said the 3rd switch and said the end constitutes the first phase place charging circuit on said first phase place.
3. booster circuit according to claim 2; It is characterized in that; Said the 4th switch and said the 5th switch are closure state on second phase place in said cycle; Said first switch, said second switch, said the 3rd switch, said the 6th switch and said minion are closed and on said second phase place, are opening; Wherein, said voltage input end, said the 4th switch, said first fly electric capacity, said the 5th switch and said voltage output end and on said second phase place, constitute the second phase place discharge circuit.
4. booster circuit according to claim 3; It is characterized in that; Said first switch, said the 6th switch and said minion are closed and on the third phase position in said cycle, are closure state; Said second switch, said the 3rd switch, said the 4th switch and said the 5th switch are opening on said third phase position; Wherein, said voltage input end, said first switch, said first fly electric capacity, said the 6th switch, said second flies electric capacity, said minion pass and said voltage output end and on said third phase position, constitutes third phase position charge-discharge circuit.
5. according to each described booster circuit in the claim 2 to 4; It is characterized in that; Said the 4th switch and said the 5th switch are closure state on the 4th phase place in said cycle; Said first switch, said second switch, said the 3rd switch, said the 6th switch and said minion are closed and on said the 4th phase place, are opening; Wherein, said voltage input end, said the 4th switch, said first fly electric capacity, said the 5th switch and said voltage output end and on said the 4th phase place, constitute the 4th phase place discharge circuit.
6. booster circuit according to claim 5 is characterized in that, also comprises: the switch control assembly, and wherein, said switch control assembly comprises:
First output unit is connected through the connecting line and said first switch of transmission first control signal on said first phase place, said second switch, said the 3rd switch, said the 4th switch, said the 5th switch, said the 6th switch and said minion pass;
Second output unit is connected through the connecting line and said first switch of transmission second control signal on said second phase place, said second switch, said the 3rd switch, said the 4th switch, said the 5th switch, said the 6th switch and said minion pass;
The 3rd output unit is connected through the connecting line and said first switch of transmission the 3rd control signal on said third phase position, said second switch, said the 3rd switch, said the 4th switch, said the 5th switch, said the 6th switch and said minion pass;
The 4th output unit is connected through the connecting line and said first switch of transmission the 3rd control signal on said the 4th phase place, said second switch, said the 3rd switch, said the 4th switch, said the 5th switch, said the 6th switch and said minion pass.
7. booster circuit according to claim 6 is characterized in that, said switch control assembly also comprises:
The sequential generation unit is connected with said the 4th output unit with said first output unit, said second output unit, said the 3rd output unit respectively through 4 road connecting lines of distinguishing 4 road clock signals that the transmitting continuous time is identical, phase place is different.
8. according to each described booster circuit in the claim 1 to 4; It is characterized in that at least one of said first switch, said second switch, said the 3rd switch, said the 4th switch, said the 5th switch, said the 6th switch and the said minion Central Shanxi Plain is the MOS switching tube.
9. according to each described booster circuit in the claim 1 to 4, it is characterized in that said first flies electric capacity has with said second and fly the identical structure of electric capacity.
10. according to each described booster circuit in the claim 1 to 4, it is characterized in that said second flies electric capacity and said first flies electric capacity and have identical capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200285479U CN202435267U (en) | 2012-01-20 | 2012-01-20 | Boosting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200285479U CN202435267U (en) | 2012-01-20 | 2012-01-20 | Boosting circuit |
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|---|---|
| CN202435267U true CN202435267U (en) | 2012-09-12 |
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| CN2012200285479U Expired - Lifetime CN202435267U (en) | 2012-01-20 | 2012-01-20 | Boosting circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113993243A (en) * | 2021-11-02 | 2022-01-28 | 广州市雅江光电设备有限公司 | High-voltage constant-current driving circuit and method |
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2012
- 2012-01-20 CN CN2012200285479U patent/CN202435267U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113993243A (en) * | 2021-11-02 | 2022-01-28 | 广州市雅江光电设备有限公司 | High-voltage constant-current driving circuit and method |
| CN113993243B (en) * | 2021-11-02 | 2023-10-20 | 广州市雅江光电设备有限公司 | High-voltage constant-current driving circuit and method |
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