CN209472552U - Voltage-regulating system - Google Patents
Voltage-regulating system Download PDFInfo
- Publication number
- CN209472552U CN209472552U CN201920373709.4U CN201920373709U CN209472552U CN 209472552 U CN209472552 U CN 209472552U CN 201920373709 U CN201920373709 U CN 201920373709U CN 209472552 U CN209472552 U CN 209472552U
- Authority
- CN
- China
- Prior art keywords
- voltage
- unit
- output voltage
- load current
- current state
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000001939 inductive effect Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005457 optimization Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model provides a kind of voltage-regulating system, it include: DC-to-dc converter for generating switching signal based on the feedback signal input voltage is converted into the first output voltage, and for carrying out partial pressure operation to the first output voltage according to adjustable partial pressure ratio to generate feedback signal；And voltage regulation unit is used to the first output voltage being converted to the second output voltage.Whether DC-to-dc converter includes: load current state detection unit, be more than that pre-determined number determines load current state, and determines adjustable partial pressure ratio according to load current state according to zero passage number of the inductive current within the scheduled period.The utility model can adjust the size for adjusting pressure difference, additionally it is possible to which the output voltage for downgrading DC-to-dc converter optimizes efficiency at light load, to improve entire voltage mediation system in whole combined efficiency at light load.
Description
Technical field
The utility model relates to voltage regulation techniques fields, and in particular to one kind can adjust automatically pressure difference to improve whole turn
Change the power-supply system of efficiency.
Background technique
In actual power applications, it is often necessary in DC-DC (direct current-direct current；Directly
Stream-direct current) one or more LDO (low dropout is cascaded after converter；Low adjustment pressure difference) linear voltage regulator, or in DC-
One or more charge pumps are cascaded after DC converter.- a to Fig. 1-d referring to Fig.1, wherein by DC-DC converter 10 shown in Fig. 1-a
Cascade power-supply management system composed by LDO linear voltage regulator 11；Charge pump 12 is cascaded by DC-DC converter 10 shown in Fig. 1-b
Composed power-supply management system；LDO linear voltage regulator 11 and 12 institute of charge pump are cascaded by DC-DC converter 10 shown in Fig. 1-c
The power-supply management system of composition；And multiple LDO linear voltage regulators 11 and multiple are cascaded by DC-DC converter 10 shown in Fig. 1-d
Power-supply management system composed by charge pump 12；Wherein, LDO linear voltage regulator 11 and the input voltage of charge pump 12 are required to
Being higher by scheduled adjusting pressure difference (headroom or dropout) than output voltage could work normally.
As shown in Fig. 1-a, DC-DC converter 10 is used for input voltage VinChange into the first output voltage Vreg, and LDO line
Property voltage-stablizer 11 is then for by the first output voltage VregChange into the second output voltage Vldo, wherein VregV must be comparedldoIt is higher by predetermined
Adjusting pressure difference；As shown in Fig. 1-b, DC-DC converter 10 is used for input voltage VinChange into the first output voltage Vreg, and it is electric
Lotus pump 12 is then for by the first output voltage VregChange into the second output voltage Vcp, wherein VregV must be comparedcpIt is higher by scheduled tune
Save pressure difference；As shown in fig 1-c, DC-DC converter 10 is used for input voltage VinChange into the first output voltage Vreg, LDO is linear
Voltage-stablizer 11 is for by the first output voltage VregChange into the second output voltage Vldo, and charge pump 12 is for exporting first
Voltage VregChange into third output voltage Vcp, wherein VregV must be comparedldoIt is higher by scheduled first adjusting pressure difference and V must be comparedcpIt is higher by pre-
Fixed second adjusts pressure difference；And as shown in Fig. 1-d, DC-DC converter 10 is used for input voltage VinChange into the first output electricity
Press Vreg, each LDO linear voltage regulator 11 is for by the first output voltage VregChange into the second output voltage Vldoi, i be 1 to n it
Between positive integer, and each charge pump 12 is for by the first output voltage VregChange into third output voltage Vcpi, i is 1 between n
Positive integer, wherein VregIt must be than each VldoiIt is higher by scheduled first and adjusts pressure difference and must be than each VcpiScheduled second is higher by adjust
Pressure difference, that is to say, that VregIt sufficiently high must can be worked normally with ensuring each LDO linear voltage regulator 11 and each charge pump 12.
In addition, adjusting pressure difference can generally determine according to maximum load condition, and adjusts pressure difference and exist in voltage-regulating system
After determination, it would not change again during entire work.In addition, the combined efficiency of voltage-regulating system is equal to DC-DC converter
Efficiency multiplied by LDO linear voltage regulator or the efficiency of charge pump, and the ideal maximal efficiency of LDO linear voltage regulator and charge pump
η be with adjust pressure difference it is directly related, ideal maximal efficiency η can be expressed as follows formula:
Wherein, VldoFor the output voltage of LDO linear voltage regulator, VdropoutFor the adjusting pressure difference of the LDO linear voltage regulator.
It can be seen from the above, adjusting pressure difference VdropoutBigger/smaller, ideal maximal efficiency η is lower/higher.
That is, the prior art is to require setting to adjust pressure difference V according to the maximum load in practical applicationdropout, one
Denier adjusts pressure difference VdropoutAfter determination, pressure difference V is adjusteddropoutIt is remained unchanged during entire work.Relationship shown in Figure 2
Curve graph, existing voltage-regulating system is in various load current IloadUnder all with fixed adjusting pressure difference VdpBy VregChange into Vldoi
And Vcpi.However, since existing voltage-regulating system is only needing lesser adjusting pressure difference V at light loaddpCan normal operating, therefore,
Existing voltage-regulating system uses secured adjusted pressure difference VdpMethod it is lower in voltage conversion efficiency at light load.
In order to solve the above technical problems, this field needs a kind of new voltage-regulating system.
Utility model content
For the problems of the prior art, the utility model provides a kind of voltage-regulating system, realizes and improves entire voltage
Regulating system is in whole combined efficiency at light load.
To achieve the above object, the utility model the following technical schemes are provided:
The utility model provides a kind of voltage-regulating system, comprising: DC-to-dc converter and voltage regulation unit；
The DC-to-dc converter, comprising: switched-mode power supply converting unit and feedback unit；
The switched-mode power supply converting unit for generating switching signal so that the switched-mode power supply based on the feedback signal
Input voltage is converted into the first output voltage by converting unit,
The feedback unit is used to carry out partial pressure operation to the first output voltage according to adjustable partial pressure ratio to generate feedback
Signal；
The voltage regulation unit is used to the first output voltage being converted to the second output voltage, second output voltage
Lower than first output voltage；
Wherein, the switched-mode power supply converting unit, comprising:
Load current state detection unit, for whether being more than pre- according to zero passage number of the inductive current within the scheduled period
Determine number and determines load current state；If so, determining that load current state is light condition, and by the adjustable partial pressure ratio
It is set as the first ratio；If not, it is determined that load current state is non-light condition, and the adjustable partial pressure ratio is set as second
Ratio, wherein second ratio is less than first ratio.
Wherein, the voltage regulation unit is LDO voltage regulation unit or charge pump.
Wherein, the feedback unit is resistance-type serial circuit.
Wherein, the scheduled period includes multiple switching cycles.
Wherein, when the load current state is light condition, the switched-mode power supply converting unit work is in pulse
Frequency modulation pattern, and, when the load current state is non-light condition, the switched-mode power supply converting unit work
In pulse-width-modulated mode.
On the other hand, the utility model additionally provides a kind of voltage-regulating system, comprising: a DC-to-dc converter
With multiple voltage regulation units；The output end of the DC-to-dc converter is inputted with multiple voltage regulation units respectively
End is connected；
The DC-to-dc converter, comprising: switched-mode power supply converting unit and feedback unit；
The switched-mode power supply converting unit for generating switching signal so that the switched-mode power supply based on the feedback signal
Input voltage is converted into the first output voltage by converting unit,
The feedback unit is used to carry out partial pressure operation to the first output voltage according to adjustable partial pressure ratio to generate feedback
Signal；
Each voltage regulation unit is used to being converted to the first output voltage into the second output voltage, and described second is defeated
Voltage is lower than first output voltage out；
Wherein, the switched-mode power supply converting unit, comprising:
Load current state detection unit, for whether being more than pre- according to zero passage number of the inductive current within the scheduled period
Determine number and determines load current state；If so, determining that load current state is light condition, and by the adjustable partial pressure ratio
It is set as the first ratio；If not, it is determined that load current state is non-light condition, and the adjustable partial pressure ratio is set as second
Ratio, wherein second ratio is less than first ratio.
Wherein, the voltage regulation unit is LDO voltage regulation unit or charge pump.
Wherein, the feedback unit is resistance-type serial circuit.
Wherein, the scheduled period includes multiple switching cycles.
Wherein, when the load current state is light condition, the switched-mode power supply converting unit work is in pulse
Frequency modulation pattern, and, when the load current state is non-light condition, the switched-mode power supply converting unit work
In pulse-width-modulated mode.
As shown from the above technical solution, a kind of voltage-regulating system described in the utility model, can be according to the size of load
In time adjustment adjusts the size of pressure difference (dropout), optimizes LDO and/or charge pump in voltage mediation system at light load
Efficiency, to improve entire voltage mediation system in whole combined efficiency at light load；It can also be in height-adjusting system at light load
The voltage feedback factor of DC-to-dc converter is to downgrade the output voltage of DC-to-dc converter, to reduce adjusting pressure difference
(dropout) LDO in optimization system and/or charge pump improve whole system in entirety at light load in efficiency at light load
Combined efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1-a to Fig. 1-d is the structural schematic diagram of power-supply management system in the prior art；
Wherein, Fig. 1-a is the structural representation for the power-supply management system that DC-DC converter cascades LDO linear voltage regulator composition
Figure；
Fig. 1-b is the structural schematic diagram for the power-supply management system that DC-DC converter cascades charge pump composition；
Fig. 1-c is that the structure for the power-supply management system that DC-DC converter cascades LDO linear voltage regulator and charge pump composition is shown
It is intended to；
Fig. 1-d is the power management that a DC-DC converter cascades multiple LDO linear voltage regulators and multiple charge pumps composition
The structural schematic diagram of system；
Fig. 2 be in the prior art voltage-regulating system under various load currents all with a fixed adjusting pressure difference by first
Output voltage changes into the graph of relation of the second output voltage；
Fig. 3 is the structural schematic diagram of voltage-regulating system provided by the embodiment of the utility model；
Fig. 4 is the structural representation of switched-mode power supply converting unit in voltage-regulating system provided by the embodiment of the utility model
Figure；
Fig. 5-a and Fig. 5-b is the structural representation of feedback unit in voltage-regulating system provided by the embodiment of the utility model
Figure；
Wherein, Fig. 5-a is a kind of structural schematic diagram of feedback unit；Fig. 5-b is the structural representation of another feedback unit
Figure；
Fig. 6 is the structural schematic diagram of another voltage-regulating system provided by the embodiment of the utility model；
Fig. 7 is the relational graph that pressure difference and load current are adjusted in voltage-regulating system provided by the embodiment of the utility model；
Wherein, 10-DC-DC converter, 11-LDO linear voltage regulator, 12- charge pump, 100- DC-to-dc converter,
101- switched-mode power supply converting unit, 101a- switching signal generate unit, 101b- electric energy transmission unit, 101c load current
State detection unit, 102- feedback unit, 102a- first resistor, 102b- variable resistance, 102c- second resistance, 102d-
Three resistance, the 4th resistance of 102e-, the 5th resistance of 102f-, 110- voltage regulation unit.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical solutions in the embodiments of the present invention are clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
A kind of voltage-regulating system provided by the embodiment of the utility model, referring to Fig. 3, comprising: DC-to-dc converter
100 and voltage regulation unit 110；
DC-to-dc converter 100, comprising: switched-mode power supply converting unit 101 and feedback unit 102；
Switched-mode power supply converting unit 101 generates switching signal so that switched-mode power supply is converted for FB based on the feedback signal
Unit 101 is by input voltage VINIt is converted into the first output voltage VREG；
Feedback unit 102 is used for according to adjustable partial pressure ratio to the first output voltage VREGIt is anti-to generate to carry out partial pressure operation
Feedback signal FB；
Voltage regulation unit 110 is LDO voltage regulation unit or charge pump, is used for the first output voltage VREGIt is converted to
Second output voltage VOUT, the second output voltage VOUTLower than the first output voltage VREG；Wherein, the first output voltage VREGWith second
Output voltage VOUTBetween pressure difference be greater than scheduled adjusting pressure difference.
Further, the utility model embodiment provides the structure of switched-mode power supply converting unit in above embodiment
Schematic diagram, referring to fig. 4, switched-mode power supply converting unit 101, comprising:
Switching signal generates unit 101a, electric energy transmission unit 101b and load current state detection unit 101c, wherein
Switching signal generates unit 101a and generates switching signal SW for FB based on the feedback signal to drive electric energy transmission unit 101b, from
And electric energy is reached to the output end of electric energy transmission unit 101b by the input terminal of electric energy transmission unit 101b；Load current state
Detection unit 101c is used for the sensing signal S according to inductive currentLIJudge the inductive current within the scheduled period (that is,
In the predetermined number switching cycle of switching signal) zero passage number whether be more than pre-determined number, with determine load current believe
Number SLDState,
If so, determining load current signal SLDFor light condition, and the adjustable partial pressure ratio is set as the first ratio,
If not, it is determined that load current signal SLDFor non-light condition, and the adjustable partial pressure ratio is set as the second ratio, wherein
Second ratio is less than the first ratio.In addition, load current signal SLDIt can be digital signal or analog signal.
Further, referring to Fig. 5-a and Fig. 5-b, the utility model embodiment provides feedback in above embodiment
The structural schematic diagram of member.
In one embodiment, referring to Fig. 5-a, feedback unit 102 includes: the first resistor 102a being sequentially connected in series, can
Power transformation hinders 102b and second resistance 102c, wherein variable resistance 102b is according to load current signal SLDControl determine resistance
Value: as load current signal SLDWhen being rendered as light condition, variable resistance 102b can be in low-resistance value with by the adjustable partial pressure
Ratio is set as first ratio；As load current signal SLDWhen being rendered as non-light condition, variable resistance 102b can be in height
Resistance value is to be set as second ratio for the adjustable partial pressure ratio.
In another embodiment, referring to Fig. 5-b, feedback unit 102 include: the 3rd resistor 102d being sequentially connected in series,
4th resistance 102e and the 5th resistance 102f, load current signal SLDElectric current I can be extracted out from feedback unit 102SEN, wherein when this
Load current signal SLDWhen being rendered as light condition, electric current ISENIn low current value, so that adjustable partial pressure ratio is the first ratio
Example；As load current signal SLDWhen being rendered as non-light condition, electric current ISENIn high current value so that adjustable partial pressure ratio is
Second ratio.
In addition, another kind voltage-regulating system provided by the embodiment of the utility model, referring to Fig. 6, comprising: DC-DC
Converter 100 and n voltage regulation unit 110；Wherein, n is the positive integer greater than 1.
It should be noted that the principle and explanation of DC-to-dc converter 100 and voltage regulation unit 110 are referring to upper
Embodiment is stated, therefore is not being repeated herein.
In the above-described embodiment, the relational graph that pressure difference and load current are adjusted in voltage-regulating system as shown in Figure 7,
The adjusting pressure difference V of light loading districtdp1Less than the adjusting pressure difference V in non-light loading districtdp2。
From the above, a kind of voltage-regulating system provided by the embodiment of the utility model, can be in due course according to the size of load
Ground adjustment adjusts the size of pressure difference (dropout), and LDO and/or charge pump are in effect at light load in optimization voltage mediation system
Rate, to improve entire voltage mediation system in whole combined efficiency at light load；It can also be straight in height-adjusting system at light load
Stream-direct current transducer voltage feedback factor is to downgrade the output voltage of DC-to-dc converter, to reduce adjusting pressure difference
(dropout) LDO in optimization system and/or charge pump improve whole system in entirety at light load in efficiency at light load
Combined efficiency.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.Term " on ", "lower" etc. refer to
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the utility model and
Simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construction
And operation, therefore should not be understood as limiting the present invention.Unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
In the specification of the utility model, numerous specific details are set forth.Although it is understood that the utility model
Embodiment can be practiced without these specific details.In some instances, be not been shown in detail well known method,
Structure and technology, so as not to obscure the understanding of this specification.Similarly, it should be understood that disclosed to simplify the utility model
And it helps to understand one or more of each utility model aspect, the retouching to the exemplary embodiment of the utility model above
In stating, each feature of the utility model is grouped together into a single embodiment, figure, or description thereof sometimes.However,
The method of the disclosure should not be explained to be in reflect an intention that the requires of the utility model ratio i.e. claimed in each power
The more features of feature being expressly recited in benefit requirement.More precisely, as the following claims reflect, it is practical new
It is all features less than single embodiment disclosed above in terms of type.Therefore, it then follows the claim of specific embodiment
Thus book is expressly incorporated in the specific embodiment, wherein independent implementation of each claim as the utility model itself
Example.It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can be mutual group
It closes.The utility model is not limited to any single aspect, is also not limited to any single embodiment, is also not limited to this
Any combination and/or displacement of a little aspects and/or embodiment.Furthermore, it is possible to be used alone the utility model each aspect and/
Or embodiment or with it is one or more other aspect and/or embodiment be used in combination.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Claims (10)
1. a kind of voltage-regulating system characterized by comprising DC-to-dc converter and voltage regulation unit；
The DC-to-dc converter, comprising: switched-mode power supply converting unit and feedback unit；
The switched-mode power supply converting unit is for generating switching signal based on the feedback signal so that the switched-mode power supply is converted
Input voltage is converted into the first output voltage by unit,
The feedback unit is used to carry out partial pressure operation to the first output voltage according to adjustable partial pressure ratio to generate feedback signal；
The voltage regulation unit is used to the first output voltage being converted to the second output voltage, and second output voltage is lower than
First output voltage；
Wherein, the switched-mode power supply converting unit, comprising:
Load current state detection unit, for whether being more than predetermined time according to zero passage number of the inductive current within the scheduled period
Number determines load current state；If so, determining that load current state is light condition, and the adjustable partial pressure ratio is set as
First ratio；If not, it is determined that load current state is non-light condition, and the adjustable partial pressure ratio is set as the second ratio
Example, wherein second ratio is less than first ratio.
2. voltage-regulating system according to claim 1, which is characterized in that the voltage regulation unit is LDO voltage tune
Save unit or charge pump.
3. voltage-regulating system according to claim 1, which is characterized in that the feedback unit is that resistance-type is serially electric
Road.
4. voltage-regulating system according to claim 1, which is characterized in that the scheduled period includes multiple switching weeks
Phase.
5. voltage-regulating system according to claim 1, which is characterized in that when the load current state is light condition
When, the switched-mode power supply converting unit works in pulse frequency modulated mode, and, when the load current state is non-light
When load state, the switched-mode power supply converting unit work is in pulse-width-modulated mode.
6. a kind of voltage-regulating system characterized by comprising a DC-to-dc converter and multiple voltage regulation units；
The output end of the DC-to-dc converter is connected with multiple voltage regulation unit input terminals respectively；
The DC-to-dc converter, comprising: switched-mode power supply converting unit and feedback unit；
The switched-mode power supply converting unit is for generating switching signal based on the feedback signal so that the switched-mode power supply is converted
Input voltage is converted into the first output voltage by unit,
The feedback unit is used to carry out partial pressure operation to the first output voltage according to adjustable partial pressure ratio to generate feedback signal；
Each voltage regulation unit is used to being converted to the first output voltage into the second output voltage, the second output electricity
It forces down in first output voltage；
Wherein, the switched-mode power supply converting unit, comprising:
Load current state detection unit, for whether being more than predetermined time according to zero passage number of the inductive current within the scheduled period
Number determines load current state；If so, determining that load current state is light condition, and the adjustable partial pressure ratio is set as
First ratio；If not, it is determined that load current state is non-light condition, and the adjustable partial pressure ratio is set as the second ratio
Example, wherein second ratio is less than first ratio.
7. voltage-regulating system according to claim 6, which is characterized in that the voltage regulation unit is LDO voltage tune
Save unit or charge pump.
8. voltage-regulating system according to claim 6, which is characterized in that the feedback unit is that resistance-type is serially electric
Road.
9. voltage-regulating system according to claim 6, which is characterized in that the scheduled period includes multiple switching weeks
Phase.
10. voltage-regulating system according to claim 6, which is characterized in that when the load current state is underloading shape
When state, the switched-mode power supply converting unit works in pulse frequency modulated mode, and, when the load current state is non-
When light condition, the switched-mode power supply converting unit work is in pulse-width-modulated mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920373709.4U CN209472552U (en) | 2019-03-22 | 2019-03-22 | Voltage-regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920373709.4U CN209472552U (en) | 2019-03-22 | 2019-03-22 | Voltage-regulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209472552U true CN209472552U (en) | 2019-10-08 |
Family
ID=68093151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920373709.4U Active CN209472552U (en) | 2019-03-22 | 2019-03-22 | Voltage-regulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209472552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802562A (en) * | 2019-03-22 | 2019-05-24 | 北京集创北方科技股份有限公司 | Voltage-regulating system |
| CN113687680A (en) * | 2021-08-19 | 2021-11-23 | 支付宝(杭州)信息技术有限公司 | Voltage regulation auxiliary circuit |
-
2019
- 2019-03-22 CN CN201920373709.4U patent/CN209472552U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802562A (en) * | 2019-03-22 | 2019-05-24 | 北京集创北方科技股份有限公司 | Voltage-regulating system |
| CN113687680A (en) * | 2021-08-19 | 2021-11-23 | 支付宝(杭州)信息技术有限公司 | Voltage regulation auxiliary circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201985759U (en) | DCDC (direct current direct current) output circuit | |
| CN100448151C (en) | Switching power supply device | |
| CN103081321B (en) | Buck switch-mode power converter large-signal transient response optimizer | |
| CN101888170B (en) | Power conversion system and controller used for the same | |
| Han et al. | Dynamic modeling and controller design of dual-mode Cuk inverter in grid-connected PV/TE applications | |
| CN109713889B (en) | Power factor correction circuit and control method thereof | |
| CN101060753B (en) | A drive circuit for adjusting backlight brightness | |
| CN109802562A (en) | Voltage-regulating system | |
| CN209472552U (en) | Voltage-regulating system | |
| US11735926B2 (en) | Solar PV and AC source power blending controller | |
| CN109802563A (en) | Voltage-regulating system | |
| Chakraborty et al. | Combination of buck and boost modes to minimize transients in the output of a positive buck-boost converter | |
| CN115714537B (en) | Power converter, control method and power conversion system | |
| CN110768528B (en) | Control method for smooth switching of working modes of non-reverse Buck-Boost circuit | |
| CN100384052C (en) | Charging control method for cell charger and its circuit | |
| CN202565159U (en) | PFC control circuit capable of flexibly boosting voltage | |
| CN110649808B (en) | Switching control method, controller and system for interleaved parallel DC-DC converter | |
| CN209170226U (en) | A kind of novel expansible Zeta DC-DC converter | |
| CN209472551U (en) | Voltage-regulating system | |
| CN102638163B (en) | DC-DC converter and control method thereof | |
| CN103427619B (en) | The PFC control circuit that can boost flexibly and control method thereof | |
| Chandran et al. | Two switch buck boost converter for power factor correction | |
| CN112054679B (en) | Positive and negative voltage conversion direct-current power supply and control method thereof | |
| George et al. | A reconfigurable buck-boost switched capacitor converter with adaptive gain and discrete frequency scaling control | |
| CN108242883B (en) | A kind of underloading detection method and device based on CRC control mode Switching Power Supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |