CN102650892A - Reference voltage stabilizer and voltage stabilizing method - Google Patents
Reference voltage stabilizer and voltage stabilizing method Download PDFInfo
- Publication number
- CN102650892A CN102650892A CN2011104606750A CN201110460675A CN102650892A CN 102650892 A CN102650892 A CN 102650892A CN 2011104606750 A CN2011104606750 A CN 2011104606750A CN 201110460675 A CN201110460675 A CN 201110460675A CN 102650892 A CN102650892 A CN 102650892A
- Authority
- CN
- China
- Prior art keywords
- voltage
- storage device
- charge storage
- reference voltage
- charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Dc-Dc Converters (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Control Of Voltage And Current In General (AREA)
Abstract
The invention provides a reference voltage stabilizer and a voltage stabilizing method. The reference voltage stabilizer comprises an input end for receiving reference voltage, an output end for coupling to a load, a voltage buffer coupled between the input end and the output end, an electric charge storage device coupled to the output end, and a charging and discharging circuit coupled to the electric charge storage device. The charging and discharging circuit will conduct charging or discharging on the electric charge storage device. The voltage buffer and the electric charge storage device after being charged or discharged can provide power to the load, enabling the voltage at the load end to be equal to the reference voltage after a period of time.
Description
Technical field
The present invention relates to a kind of voltage stabilizing device.
Background technology
In circuit design, often need stable reference voltage be provided to each circuit blocks, so that each circuit blocks can normal operation.Circuit blocks can include active member and/or passive device; When reference voltage was coupled to circuit blocks, circuit blocks may self-reference voltage place be drawn electric current or output current and is caused the shake of reference voltage (or to be called surging, glitch); Therefore; Circuit blocks need wait for a period of time, and after reference voltage is stablized, could carry out follow-up running according to reference voltage, and limit the operation rate of circuit blocks.So-called stable, be meant that reference voltage has been fit to let circuit blocks operate in order to reference.
Therefore; In order to reduce the influence of surging; The real work upward is coupled to voltage buffer (voltage buffer) through regular meeting with reference voltage; Voltage buffer by than high driving ability (driving capability) comes the driving circuit block, and to circuit blocks (hereinafter to be referred as load) stable reference voltage is provided.For example, the voltage buffer that the amplifier modes such as (unity gain amplifier) of employing unity gain is implemented in circuit design.
Yet; When the resistance value of load becomes big or reduces in order to the time that drives load; Voltage buffer be if will provide stable reference voltage to load in the preset time, then must improve voltage buffer frequency range, reduction voltage buffer output impedance and/or dynamically change the output current of voltage buffer.Therefore, the circuit area of voltage buffer and power consumption all can significantly rise with doubly speed nearly square, and cause the waste of the hardware cost and the energy.
Summary of the invention
In view of this, how to reduce the influence of surging, and let the reference electrode pressure energy fast stabilization energy reference voltage is provided to load apace, and reduce energy resource consumption, real have problem to be solved for industry.
This instructions provides a kind of reference voltage stabilising arrangement, and it includes: an input end, in order to receive a reference voltage; One output terminal is in order to be coupled to a load; One voltage buffer is coupled between this input end and this output terminal; One charge storage device is coupled to this output terminal; And a charge-discharge circuit, be coupled to this charge storage circuit; Wherein this charge-discharge circuit can carry out charge or discharge to this charge storage device, and this charge storage device after this voltage buffer and the charge or discharge can make the voltage of this load end after after a while, equal this reference voltage to this electric.
This instructions also provides a kind of reference voltage antihunt means, and it includes: utilize a voltage buffer to receive a reference voltage; One charge storage device is carried out charge or discharge; And utilize this charge storage device after this voltage buffer and the charge or discharge to an electric, make the voltage of this load end after after a while, equal this reference voltage.
This instructions also provides a kind of reference voltage stabilising arrangement, and it includes: a first input end, in order to receive one first reference voltage; One second input end is in order to receive one second reference voltage; One first output terminal and one second output terminal; One first voltage buffer is coupled between this first input end and this first output terminal; One second voltage buffer is coupled between this second input end and this second output terminal; One first charge storage device is coupled to this first output terminal; One second charge storage device is coupled to this second output terminal; One charging circuit is coupled to this first charge storage circuit; And a discharge circuit, be coupled to this second charge storage circuit; Wherein this charging circuit can charge to this first charge storage device; And this discharge circuit can discharge to this second charge storage device; First charge storage device after this first voltage buffer and this charging can provide one first output voltage in this first output terminal; And second charge storage device after this second voltage buffer and this discharge can provide one second output voltage in this second output terminal, and the voltage difference between this first output voltage and this second output voltage and this first reference voltage can equate after after a while with voltage difference between this second reference voltage.
One of advantage of above-mentioned reference voltage stabilising arrangement is to reduce the hsrdware requirements of voltage buffer, thereby reduces the hardware cost and the energy that is consumed.
Another advantage of above-mentioned reference voltage stabilising arrangement is to reduce the influence of surging, and lets reference electrode is stable fast to be provided reference voltage to load apace, and can be applicable to the system applies of various high speeds.
Description of drawings
Fig. 1 is the functional block diagram after the reference voltage stabilising arrangement of one embodiment of the invention is simplified.
Fig. 2 is the process flow diagram after an embodiment in reference voltage stabilising arrangement when running of Fig. 1 simplifies.
Fig. 3 is the functional block diagram after the reference voltage stabilising arrangement of another embodiment of the present invention is simplified.
Symbol description
100 reference voltage stabilising arrangements, 110 voltage buffers
120 charge storage devices, 130 charge-discharge circuits
140 control circuits, 150,160 switches
170 input ends, 180 output terminals
300 reference voltage stabilising arrangements, 310,311 voltage buffers
320,321 charge storage devices, 330 charging circuits
331 discharge circuits, 340 control circuits
350,351,360,361 switches, 370,371 input ends
380,381 output terminals
Embodiment
Below will cooperate correlative type that embodiments of the invention are described.In these were graphic, identical label was represented identical or similar elements or process step.
Fig. 1 is the functional block diagram after the reference voltage stabilising arrangement 100 of one of embodiments of the invention is simplified, and reference voltage stabilising arrangement 100 includes voltage buffer 110, charge storage device 120, charge-discharge circuit 130, control circuit 140, switch 150 and 160, input end 170 and output terminal 180.Reference voltage stabilising arrangement 100 can be in order to receiving reference voltage Vref, and the voltage Vo of output terminal is provided to load, so that load can receive the output voltage V o identical with reference voltage Vref.Load can include the circuit of being made up of various active members and/or passive device, and is coupled between the output terminal 180 and second current potential of reference voltage stabilising arrangement 100.
Charge-discharge circuit 130 makes charge storage device 120 store the preset quantity of electric charge in order to charge storage device 120 is charged and/or discharge (hereinafter to be referred as discharging and recharging).For example, charge-discharge circuit 130 can adopt the modes such as current source circuit of various frameworks to implement.
Flow process Figure 200 after embodiment when Fig. 2 is reference voltage stabilising arrangement 100 running of Fig. 1 simplifies below will further specify the function mode of reference voltage stabilising arrangement 100 with Fig. 2 Fig. 1 that arranges in pairs or groups.
In flow process 210, reference voltage stabilising arrangement 100 receives reference voltage Vref, and this moment, control circuit 140 was set to conducting with switch 150, and switch 160 is set to not conducting.Make charge-discharge circuit 130 conductings in charge storage device 120, and make voltage buffer 110 and charge storage device 120 not conductings in load.
In flow process 220, control circuit 140 can discharge and recharge charge storage device 120 to the suitable quantity of electric charge and charge-discharge circuit 130 is set according to the voltage Vo of reference voltage Vref and output terminal.
In flow process 230; Control circuit 140 can be set to not conducting with switch 150; And switch 160 is set to conducting, and voltage buffer 110 and charge storage device 120 is coupled to load, make be carried on output terminal 180 received voltage Vo can be identical with reference voltage Vref apace.
In the above embodiments, control circuit 140 can adopt the charge or discharge mode of various suitable manner decision charge storage devices 120.For example, in certain embodiments, control circuit 140 can be provided with time, electric current and/or the voltage etc. that 130 pairs of charge storage devices 120 of charge-discharge circuit discharge and recharge.In another embodiment, charge storage device 120 includes a plurality of electric capacity, and control circuit 140 can be provided with charge-discharge circuit 130 and only the partition capacitance of a plurality of electric capacity discharged and recharged, and changes the stored quantity of electric charge of charge storage device 120.
In the above embodiments, control circuit 140 can be judged the appropriate charge amount of charge storage device 120 according to the voltage Vo of reference voltage Vref and output terminal.For example, in one embodiment, load is represented with the capacitor equivalent of capacitance C1, and charge storage device 120 is represented with the capacitor equivalent of capacitance C2.If will be with load by existing current potential charge or discharge during to reference voltage Vref; Load the electric charge that must absorb be Q1 (or the electric charge that discharges); Then control circuit 140 can be provided with charge-discharge circuit 130 charge storage device 120 is charged to Q1+Q2 in advance, and wherein Q2 is that the current potential of charge storage device 120 equals the required quantity of electric charge of reference voltage Vref.Therefore; After voltage buffer 110 and charge storage device 120 be coupled to load; The electric charge of Q1 can flow to load by charge storage device 120, and make voltage buffer 110 output, charge storage device 120, and the current potential of load all become reference voltage Vref.Because the transmission of electric charge between charge storage device 120 and load is very fast; The time that can make the voltage Vo of output terminal 180 arrive reference voltage Vref can not be subject to the electric current of voltage buffer 110, thereby the hsrdware requirements of voltage buffer 110 can significantly reduce.In addition, by control circuit 140 the stored quantity of electric charge of charge storage device 120 is set suitably, the surging that reference voltage stabilising arrangement 100 is coupled to after the load reduces.
In other the flow process 220 of embodiment; Control circuit 140 also can adopt other mode that charge-discharge circuit 130 is set; For example; Control circuit 140 is not provided with charge-discharge circuit 130 according to the voltage Vo of reference voltage Vref or output terminal, charges according to one or more regular times and/or discharge, perhaps charges and/or be discharged to one or more fixing modes such as the quantity of electric charge but 130 pairs of charge storage devices of charge-discharge circuit 120 only are set.
In the flow process 220 of other embodiment, control circuit 140 also can be only according to one of them of the voltage Vo of reference voltage Vref or output terminal and discharging and recharging of 130 pairs of charge storage devices 120 of charge-discharge circuit is set.For example, in one embodiment, control circuit 140 can detect the size of surging, adjusts the quantity of electric charge that 130 pairs of charge storage devices 120 of charge-discharge circuit are discharged and recharged according to the result who detects again.
In further embodiments, control circuit 140 also can adopt the combination of multiple mode and charge-discharge circuit 130 is set.Perhaps, in further embodiments, control circuit 140 also can omit or simplify.
In the above embodiments; Also can increase another switch (not illustrating among Fig. 1) at voltage buffer 110 and 120 of charge storage devices; When 130 pairs of charge storage devices 120 of charge-discharge circuit are discharged and recharged, can conducting between voltage buffer 110 and the charge storage device 120.And in to electric the time, just with conducting between voltage buffer 110 and the charge storage device 120.
In the flow process 230 of the above embodiments; When voltage buffer 110 and charge storage device 120 are coupled to load; Charge-discharge circuit 130 also can be set also be coupled to load a period of time; And load is discharged and recharged, make be carried on output terminal 180 received voltage Vo can be identical with reference voltage Vref apace.
In the flow process 230 of the above embodiments, voltage buffer 110 and charge storage device 120 can be set to successively be coupled to load or be coupled to load simultaneously.
In the above embodiments; Control circuit 140 can be estimated the quantity of electric charge that it is stored by the voltage of charge storage device 120, and the resistance value of time, voltage, electric current and/or the charge storage device 120 that perhaps also can discharge and recharge according to charge-discharge circuit 130 etc. is estimated the quantity of electric charge that charge storage device 120 is stored.
In the above embodiments, second current potential that first current potential that charge storage device 120 is coupled among Fig. 1 and load are coupled can be identical or different current potential.
In the above embodiments, charge-discharge circuit 130 can only have charge function or discharging function, perhaps also can have charging and discharging function simultaneously.
In the above embodiments, charge-discharge circuit 130 can with charge storage device 120 be coupled to be higher than reference voltage Vref current potential to charge, the voltage that makes the charge storage device 120 after the charging is more than or equal to reference voltage Vref.Perhaps, charge-discharge circuit 130 also can with charge storage device 120 be coupled to be lower than reference voltage Vref current potential to discharge, make the voltage of the charge storage device 120 after the discharge be less than or equal to reference voltage Vref.
Fig. 3 is the functional block diagram after the reference voltage stabilising arrangement 300 of another embodiment of the present invention is simplified, and reference voltage stabilising arrangement 300 includes voltage buffer 310 and 311, charge storage device 320 and 321, charging circuit 330, discharge circuit 331, control circuit 340, switch 350,351,360 and 361, input end 370 and 371 and output terminal 380 and 381.Reference voltage stabilising arrangement 300 receives differential reference voltage Vref p and Vrefn at input end 370 and 371; And at output terminal 380 and 381 differential output voltage V op and Von are provided to load, so that load can receive differential output voltage Vop and the Von identical with differential reference voltage Vref p and Vrefn.
Yet; Because reference voltage stabilising arrangement 300 needs to produce differential output voltage V op and Von; Therefore control circuit 340 need be provided with charging circuit 330 charge storage device 320 is charged to the suitable quantity of electric charge, and discharge circuit 331 is set charge storage device 321 is discharged to the suitable quantity of electric charge.Therefore work as control circuit 340 switch 350 and 351 not conductings are set; And after switch 360 and 361 conductings are set; Voltage buffer 310 and 311 and charge storage device 320 and 321 can be coupled to load, make the differential voltage that is carried between output terminal 380 and 381 received voltage Vop and Von can be apace with reference voltage Vref p and Vrefn between differential voltage identical.
In the present embodiment, charge storage device 320 and 321 all is coupled to first current potential.In further embodiments, charge storage device 320 and 321 also can be coupled to different potential respectively.
The output voltage V op of reference voltage stabilising arrangement and Von can be identical with reference voltage Vref p and Vrefn respectively.Perhaps, the output voltage V op of reference voltage stabilising arrangement and Von can be inequality with reference voltage Vref p and Vrefn respectively, but the voltage difference between output voltage V op and Von is identical with voltage difference between reference voltage Vref p and Vrefn
In the above embodiments; Also can be 320 of voltage buffer 310 and charge storage devices; With/or voltage buffer 311 and 321 increase switches of charge storage device, when 330 pairs of charge storage devices 320 of charging circuit are charged, and/or 331 pairs of charge storage devices 321 of discharge circuit are when discharging; Can conducting between voltage buffer 310 and the charge storage device 320, and/or can conducting between voltage buffer 311 and the charge storage device 321.And to electric the time, just with conducting between voltage buffer 310 and the charge storage device 320, and/or conducting between voltage buffer 311 and the charge storage device 321.
In the above embodiments; The reference voltage stabilising arrangement is by with the charge storage device pre-charge or be discharged to the suitable quantity of electric charge; Therefore when voltage buffer and charge storage device are coupled to load; Electric charge is sent to (or drawing certainly) load fast, makes load can reach the voltage close or identical with reference voltage apace.At this moment, voltage buffer only need provide electric current with to estimating the action that discharges and recharges with actual charge differences amount, and with the output voltage correction of reference voltage stabilising arrangement to identical with reference voltage.Therefore; All can reduce for the frequency range of voltage buffer and the requirement of driving force; And the hardware area and the energy resource consumption of charge storage device (like, electric capacity) are all very low, therefore design difficulty, hardware area and the power consumption of reference voltage stabilising arrangement can both significantly be reduced.
Owing to the time of transmission charge between charge storage device and load is quite quick, and voltage buffer only must be revised small size voltage differences.Therefore, the present invention can be applicable in the system applies such as analog-digital converter at a high speed.
In addition, in using like a/d converter successive approximation (successive approximation ADC) etc., control circuit can discharge and recharge charge storage device to accurate charge value and charge-discharge circuit is set by mode such as tabling look-up in advance.
In addition, the present invention also can use with the mode of ameliorating collocation of various voltage buffers.For example; Suitably improve voltage buffer frequency range, reduce the output impedance of voltage buffer and/or dynamically change the output current of voltage buffer, and adopt charge-discharge circuit and charge storage circuit mode in collocation the foregoing description to load charge-discharge.
Some vocabulary in instructions and claims is used to censure specific element, and the person of ordinary skill in the field should understand, and same element may be called with different nouns.In instructions and claims, not with the difference of title as the mode of distinguishing element, but to come with the difference of element on function be the benchmark of differentiation.Be an open term mentioned " comprising " in instructions and claims, so should be construed to " comprise but be not limited to ".In addition, " couple " speech and comprise any indirect connection means that directly reach.
The above is merely embodiments of the invention, combination that all can be suitable between the part technical characterictic of each embodiment and each embodiment and not mutual exclusion, and all equalizations of doing according to claims of the present invention change, modify and make up, and all belong to covering scope of the present invention.
Claims (14)
1. reference voltage stabilising arrangement, it includes:
One input end is in order to receive a reference voltage;
One output terminal is in order to be coupled to a load;
One voltage buffer is coupled between said input end and the said output terminal;
One charge storage device is coupled to said output terminal; And
One charge-discharge circuit is coupled to said charge storage device;
Wherein said charge-discharge circuit can carry out charge or discharge to said charge storage device; And the said charge storage device after said voltage buffer and the charge or discharge can make the voltage of said load end after after a while, equal said reference voltage to said electric.
2. reference voltage stabilising arrangement according to claim 1 also includes a control circuit,
Said control circuit can be when one first period; Make said charge storage device and said not conducting of load; And make said charge-discharge circuit and said charge storage device conducting, so that said charge-discharge circuit carries out charge or discharge to said charge storage device, and
Said control circuit can be when one second period; Make said charge-discharge circuit and the not conducting of said charge storage device; And make said charge storage device and said load conducting, make said charge storage device transmit electric charge or receive electric charge from said load to said load.
3. reference voltage stabilising arrangement according to claim 2; Wherein said control circuit can be controlled time, electric current and/or voltage that said charge-discharge circuit discharges and recharges said charge storage device according to the voltage of said reference voltage and/or said load end.
4. reference voltage stabilising arrangement according to claim 2; Wherein said control circuit can be controlled said charge-discharge circuit at least partly discharging and recharging a plurality of electric capacity in the said charge storage device according to the voltage of said reference voltage and/or said load end.
5. according to claim 2,3 or 4 described reference voltage stabilising arrangements; Wherein said control circuit can adopt simulation and/or the signal processing circuit of numeral or the mode of tabling look-up, and controls said charge-discharge circuit and can carry out charge or discharge to said charge storage device.
6. according to claim 2,3 or 4 described reference voltage stabilising arrangements, the voltage after the wherein said charge storage device charging is more than or equal to said reference voltage, and/or the voltage after the discharge of said charge storage device is less than or equal to said reference voltage.
7. reference voltage stabilising arrangement according to claim 2; Wherein said control circuit can be when said first period; Said voltage buffer and the not conducting of said charge storage device are set, and can when said second period, said voltage buffer and said load conducting be set.
8. reference voltage antihunt means, it includes:
Utilize a voltage buffer to receive a reference voltage;
One charge storage device is carried out charge or discharge; And
Utilize said charge storage device after said voltage buffer and the charge or discharge to an electric, make the voltage of said load end after after a while, equal said reference voltage.
9. reference voltage antihunt means according to claim 8 also include:
When one first period, make said charge storage device and said not conducting of load, and said charge storage device is carried out charge or discharge; And
When one second period, make said charge storage device and said load conducting, and make said charge storage device receive electric charge to said load transmission or from said load.
10. reference voltage antihunt means according to claim 9 also include:
According to the voltage of said reference voltage and/or said load end, control time, electric current and/or voltage that said charge storage device discharges and recharges.
11. reference voltage antihunt means according to claim 9 also include:
According to the voltage of said reference voltage and/or said load end, and the part at least of a plurality of electric capacity in the said charge storage device is discharged and recharged.
12. according to claim 9,10 or 11 described reference voltage antihunt means, wherein:
Voltage after the said charge storage device charging is more than or equal to said reference voltage, and/or the voltage after the discharge of said charge storage device is less than or equal to said reference voltage.
13. according to Claim 8 or 9 described reference voltage antihunt means, also include:
When said first period, make said voltage buffer and the not conducting of said charge storage device, and when said second period, said voltage buffer and said load conducting are set.
14. a reference voltage stabilising arrangement, it includes:
One first input end is in order to receive one first reference voltage;
One second input end is in order to receive one second reference voltage;
One first output terminal and one second output terminal;
One first voltage buffer is coupled between said first input end and said first output terminal;
One second voltage buffer is coupled between said second input end and said second output terminal;
One first charge storage device is coupled to said first output terminal;
One second charge storage device is coupled to said second output terminal;
One charging circuit is coupled to said first charge storage device; And
One discharge circuit is coupled to said second charge storage device;
Wherein said charging circuit can charge to said first charge storage device; And said discharge circuit can discharge to said second charge storage device; First charge storage device after said first voltage buffer and the said charging can provide one first output voltage in said first output terminal; And second charge storage device after said second voltage buffer and the said discharge can provide one second output voltage in said second output terminal, and the voltage difference between said first output voltage and said second output voltage and said first reference voltage can equate after after a while with voltage difference between said second reference voltage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161446523P | 2011-02-25 | 2011-02-25 | |
| US61/446523 | 2011-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102650892A true CN102650892A (en) | 2012-08-29 |
| CN102650892B CN102650892B (en) | 2016-01-13 |
Family
ID=46692905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110460675.0A Active CN102650892B (en) | 2011-02-25 | 2011-12-31 | Reference voltage stabilising arrangement and relevant voltage stabilizing method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102650892B (en) |
| TW (1) | TWI474620B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030052659A1 (en) * | 2001-09-12 | 2003-03-20 | Masahiko Monomoushi | Power supply and display apparatus including thereof |
| JP3814800B2 (en) * | 2002-08-20 | 2006-08-30 | 有限会社サンブリッジ | Output stabilization system |
| JP2007206997A (en) * | 2006-02-02 | 2007-08-16 | Analog Chip Design Kk | Power supply circuit |
| CN101694961A (en) * | 2009-09-18 | 2010-04-14 | 和芯微电子(四川)有限公司 | Low ripple wave boosting type charge pump |
| US20100156520A1 (en) * | 2008-12-22 | 2010-06-24 | Panasonic Corporation | Reference voltage generator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9002716A (en) * | 1990-12-11 | 1992-07-01 | Philips Nv | POWER SUPPLY. |
| JP3700558B2 (en) * | 2000-08-10 | 2005-09-28 | 日本電気株式会社 | Driving circuit |
| US6366124B1 (en) * | 2001-05-16 | 2002-04-02 | Pericom Semiconductor Corp. | BiDirectional active voltage translator with bootstrap switches for mixed-supply VLSI |
| US6567028B2 (en) * | 2001-10-12 | 2003-05-20 | Micron Technology, Inc. | Reference voltage stabilization in CMOS sensors |
| TW200832868A (en) * | 2007-01-26 | 2008-08-01 | Univ Nat Chiao Tung | Pre-charge sample-and-hold circuit |
| EP2075909A3 (en) * | 2007-12-26 | 2016-10-12 | TPO Displays Corp. | Current sampling method and circuit |
-
2011
- 2011-12-31 CN CN201110460675.0A patent/CN102650892B/en active Active
-
2012
- 2012-01-17 TW TW101101699A patent/TWI474620B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030052659A1 (en) * | 2001-09-12 | 2003-03-20 | Masahiko Monomoushi | Power supply and display apparatus including thereof |
| JP3814800B2 (en) * | 2002-08-20 | 2006-08-30 | 有限会社サンブリッジ | Output stabilization system |
| JP2007206997A (en) * | 2006-02-02 | 2007-08-16 | Analog Chip Design Kk | Power supply circuit |
| US20100156520A1 (en) * | 2008-12-22 | 2010-06-24 | Panasonic Corporation | Reference voltage generator |
| CN101694961A (en) * | 2009-09-18 | 2010-04-14 | 和芯微电子(四川)有限公司 | Low ripple wave boosting type charge pump |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201236370A (en) | 2012-09-01 |
| CN102650892B (en) | 2016-01-13 |
| TWI474620B (en) | 2015-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102739040A (en) | Dual-mode charge pump | |
| CN102946131A (en) | Adaptive input power charger and method for controlling input current of charger | |
| US10972003B2 (en) | Charge pump | |
| CN104124855A (en) | Circuit arrangement and method for reproducing a current | |
| CN103326458A (en) | Power supply switching circuit of external power supply and power supply by battery and switching method | |
| CN101419255A (en) | Detection circuit for duty ratio of switching power supply, detection method and applications | |
| CN102882246A (en) | Device and method for charging a master device using a detachable device | |
| CN102751871A (en) | Switching power supply device | |
| CN109494978A (en) | Integrated circuit of power supply switching circuit and power supply switching controller | |
| CN103580098A (en) | Electric device | |
| CN106612069B (en) | Charge pump and dynamic charge pump arrangement comprising it | |
| CN102650892A (en) | Reference voltage stabilizer and voltage stabilizing method | |
| CN102264166B (en) | LED output drive circuit structure and method for providing drive current for LED | |
| CN102169140B (en) | Clock frequency detection circuit | |
| CN207926260U (en) | A kind of multiple-way supply automatic switch-over circuit and supply unit | |
| WO2018117387A3 (en) | Voltage detection integrated circuit and battery management system including same | |
| CN202374436U (en) | Pop noise suppression circuit | |
| KR101080742B1 (en) | Power Supply | |
| US8541998B2 (en) | Switching converter circuit | |
| CN203775038U (en) | Low-voltage DC-power-supply boost-up circuit | |
| US20160352248A1 (en) | Rectifier | |
| KR102108478B1 (en) | Module of voltage attenuation and the apparatus and the method for attenuating voltage | |
| US20230025078A1 (en) | Power converter with asymmetric switch levels | |
| CN220857922U (en) | Constant voltage circuit, power conversion system and air conditioner | |
| CN102801311B (en) | Power path management circuit and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |