CN110187730A - A kind of energy conservation linear circuit and electronic equipment - Google Patents
A kind of energy conservation linear circuit and electronic equipment Download PDFInfo
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- CN110187730A CN110187730A CN201910358145.1A CN201910358145A CN110187730A CN 110187730 A CN110187730 A CN 110187730A CN 201910358145 A CN201910358145 A CN 201910358145A CN 110187730 A CN110187730 A CN 110187730A
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- error
- adjustment pipe
- phase amplifier
- resistance
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
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Abstract
The present invention discloses a kind of energy saving linear circuit and electronic equipment, it is related to driving power technical field, including error in-phase amplifier, feedback resistive network and adjustment pipe, one end of the input terminal connection adjustment pipe of the error in-phase amplifier, one end of the output end connection feedback resistive network of error in-phase amplifier；The adjustment pipe is MOS adjustment pipe, the feedback resistive network includes first resistor and second resistance, the input terminal of the grid connection error in-phase amplifier of the MOS adjustment pipe, one end of the first resistor connects one end of second resistance and the output end of error in-phase amplifier simultaneously, the source electrode of the other end connection MOS adjustment pipe of first resistor, the other end ground connection of second resistance；Circuit structure in the present invention program is simple, stable output signal, and quiescent dissipation can accomplish that 6 μ A or so, super low-power consumption realize energy conservation.
Description
Technical field
The present invention relates to driving power technical field more particularly to a kind of energy saving linear circuits and electronic equipment.
Background technique
Currently, the structure of existing approximation product are as follows: LDO linear voltage-stabilizing circuit, the working principle of the circuit structure are as follows: pass through
To feedback signal compared with reference voltage, auto-control power tube voltage obtains exporting stable voltage and current error amplifier；
But there are certain technical disadvantages for the circuit structure, specifically, number of elements is more, circuit cost is high and the power consumption of circuit compared with
Greatly；
Therefore, it is badly in need of a kind of circuit structure, at present to reduce number of elements, reduce cost and power consumption.
Summary of the invention
The present invention provides a kind of energy saving linear circuit and electronic equipment aiming at the problem that background technique, to solve or at least
Partly alleviate the above-mentioned problems in the prior art.
To achieve the goals above, the present invention proposes a kind of energy saving linear circuit, comprising: error in-phase amplifier, feedback
Resistor network and adjustment pipe, one end of the input terminal connection adjustment pipe of the error in-phase amplifier, error in-phase amplifier
Output end connection feedback resistive network one end；
The adjustment pipe is MOS adjustment pipe, and the feedback resistive network includes first resistor and second resistance, described
MOS adjustment pipe grid connection error in-phase amplifier input terminal, one end of the first resistor connects second simultaneously
One end of resistance and the output end of error in-phase amplifier, the source electrode of the other end connection MOS adjustment pipe of first resistor, the second electricity
The other end of resistance is grounded.
Preferably, which further includes first capacitor, the source electrode of one end connection MOS adjustment pipe of the first capacitor,
The grid of the other end connection MOS adjustment pipe of first capacitor and the input terminal of error in-phase amplifier.
Preferably, which further includes the second capacitor, the other end of one end connection first resistor of second capacitor
And the source electrode of MOS adjustment pipe, one end of other end connection first resistor, one end of second resistance and the same phase of error of the second capacitor
The output end of amplifier.
Preferably, the error in-phase amplifier, comprising: error amplifier and in-phase amplifier.
The present invention also proposes a kind of electronic equipment, including energy saving linear circuit as mentioned.
The present invention proposes a kind of energy saving linear circuit and electronic equipment, including error in-phase amplifier, feedback resistive network
It is managed with adjustment, one end of the input terminal connection adjustment pipe of the error in-phase amplifier, the output end of error in-phase amplifier
Connect one end of feedback resistive network；The adjustment pipe is MOS adjustment pipe, and the feedback resistive network includes first resistor
And second resistance, the input terminal of the grid connection error in-phase amplifier of the MOS adjustment pipe, the one of the first resistor
Hold while connecting one end of second resistance and the output end of error in-phase amplifier, the other end connection MOS adjustment of first resistor
The source electrode of pipe, the other end ground connection of second resistance；Circuit structure in the present invention program is simple, stable output signal, static function
Consumption can accomplish that 6 μ A or so, super low-power consumption realize energy conservation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is energy saving linear circuit architectures schematic diagram in an embodiment of the present invention；
Fig. 2 is energy saving linear circuit schematic diagram in an embodiment of the present invention；
Fig. 3 is electronic devices structure schematic diagram in an embodiment of the present invention；
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
Embodiment one:
As shown in Figure 1, the present invention proposes a kind of energy saving linear circuit, comprising: error in-phase amplifier, feedback resistive network
It is managed with adjustment, one end of the input terminal connection adjustment pipe of the error in-phase amplifier, the output end of error in-phase amplifier
Connect one end of feedback resistive network；
As shown in Fig. 2, the adjustment pipe is that MOS adjusts pipe Q1, the feedback resistive network includes first resistor R10
With second resistance R20, the input terminal Vin of the grid connection error in-phase amplifier U1 of the described MOS adjustment pipe Q1, described the
One end of one resistance R10 connects one end of second resistance R20 and the output end vo ut of error in-phase amplifier U1, the first electricity simultaneously
Hinder the source electrode of the other end connection MOS adjustment pipe Q1 of R10, the other end ground connection of second resistance R20；
In the embodiment of the present invention, Q1 is MOS adjustment pipe, is to drive for voltage, can reduce the quiescent current of device consumption,
And conduction impedance is small, U1 is built-in error amplifier and in-phase amplifier, and low in energy consumption, gain is big, and frequency is wide, resistance R10 and R20
For the feedback resistance of output voltage, feedback voltage precision height；C1, C2 capacitor stabilize the output voltage；
In the embodiment of the present invention, reference voltage V1 is set, and reference voltage V1 output reference voltage precision is very high, and error is put
The voltage that output is fed back is compared by big device with reference voltage V1, and its difference is controlled adjustment power with amplifier
The on state of pipe Q1 improves output stability.
As shown in Fig. 2, the circuit further includes first capacitor C1, one end connection MOS adjustment pipe of the first capacitor C1
The source electrode of Q1, the grid of the other end connection MOS adjustment pipe Q1 of first capacitor C1 and the input terminal of error in-phase amplifier U1
Vin, in the embodiment of the present invention, capacitor C1 when by increasing one as starting, compensating action when starting is provided.
As shown in Fig. 2, the circuit further includes one end connection first resistor of the second capacitor C2, the second capacitor C2
The source electrode of the other end and MOS adjustment the pipe Q1 of R10, one end of the other end connection first resistor R10 of the second capacitor C2, the second electricity
One end of R20 and the output end vo ut of error in-phase amplifier U1 are hindered, in the embodiment of the present invention, the second capacitor C2 is front end feedback
Load regulation can be improved in capacitor；
In the embodiment of the present invention, the error in-phase amplifier U1, comprising: error amplifier and in-phase amplifier, this
In inventive embodiments, first order amplifier is exactly a differential pair as most of error amplifier structures, and the second level is same
Phase amplifying stage provides a small gain stage, and control bandwidth by the current relationship of resistance.
Embodiment two:
As shown in figure 3, the present invention also proposes a kind of electronic equipment, including energy saving linear circuit as mentioned.
The present invention is in contrast to conventional LDO circuits structure, if directly driving power tube by amplifier, that bandwidth is just by power tube
Parasitic capacitance and amplifier output impedance and gain determine that and the gain and output impedance of this circuit are smaller than operational amplifier circuit,
And bandwidth is also bigger.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (5)
1. a kind of energy conservation linear circuit characterized by comprising error in-phase amplifier, feedback resistive network and adjustment pipe, institute
One end of the input terminal connection adjustment pipe for the error in-phase amplifier stated, the output end of error in-phase amplifier connect feedback resistance
One end of network；
The adjustment pipe is MOS adjustment pipe, and the feedback resistive network includes first resistor and second resistance, described
MOS adjusts the input terminal of the grid connection error in-phase amplifier of pipe, and one end of the first resistor connects the second electricity simultaneously
One end of resistance and the output end of error in-phase amplifier, the source electrode of the other end connection MOS adjustment pipe of first resistor, second resistance
The other end ground connection.
2. energy conservation linear circuit according to claim 1, which is characterized in that the circuit further includes first capacitor, described
The source electrode of one end connection MOS adjustment pipe of first capacitor, the grid and error of the other end connection MOS adjustment pipe of first capacitor are same
The input terminal of phase amplifier.
3. energy conservation linear circuit according to claim 1, which is characterized in that the circuit further includes the second capacitor, described
The other end of one end connection first resistor of second capacitor and the source electrode of MOS adjustment pipe, the other end connection first of the second capacitor
The output end of one end of resistance, one end of second resistance and error in-phase amplifier.
4. energy conservation linear circuit according to claim 1, which is characterized in that the error in-phase amplifier, comprising: accidentally
Poor amplifier and in-phase amplifier.
5. a kind of electronic equipment, which is characterized in that including the energy saving linear circuit as described in Claims 1-4 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358145.1A CN110187730A (en) | 2019-04-30 | 2019-04-30 | A kind of energy conservation linear circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358145.1A CN110187730A (en) | 2019-04-30 | 2019-04-30 | A kind of energy conservation linear circuit and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN110187730A true CN110187730A (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910358145.1A Pending CN110187730A (en) | 2019-04-30 | 2019-04-30 | A kind of energy conservation linear circuit and electronic equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1191416A2 (en) * | 2000-09-20 | 2002-03-27 | Texas Instruments Inc. | Voltage regulator |
| US6710583B2 (en) * | 2001-09-28 | 2004-03-23 | Catalyst Semiconductor, Inc. | Low dropout voltage regulator with non-miller frequency compensation |
| CN104238613A (en) * | 2014-09-01 | 2014-12-24 | 东南大学 | Digital circuit low drop-out linear voltage stabilizer |
| CN104881070A (en) * | 2014-02-27 | 2015-09-02 | 无锡华润上华半导体有限公司 | Ultra-low power consumption LDO circuit applied to MEMS |
| CN105242734A (en) * | 2014-07-08 | 2016-01-13 | 广州市力驰微电子科技有限公司 | High-power LDO circuit without externally setting capacitor |
| CN106708153A (en) * | 2017-03-08 | 2017-05-24 | 长江存储科技有限责任公司 | High-bandwidth low-dropout linear regulator |
-
2019
- 2019-04-30 CN CN201910358145.1A patent/CN110187730A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1191416A2 (en) * | 2000-09-20 | 2002-03-27 | Texas Instruments Inc. | Voltage regulator |
| US6710583B2 (en) * | 2001-09-28 | 2004-03-23 | Catalyst Semiconductor, Inc. | Low dropout voltage regulator with non-miller frequency compensation |
| CN104881070A (en) * | 2014-02-27 | 2015-09-02 | 无锡华润上华半导体有限公司 | Ultra-low power consumption LDO circuit applied to MEMS |
| CN105242734A (en) * | 2014-07-08 | 2016-01-13 | 广州市力驰微电子科技有限公司 | High-power LDO circuit without externally setting capacitor |
| CN104238613A (en) * | 2014-09-01 | 2014-12-24 | 东南大学 | Digital circuit low drop-out linear voltage stabilizer |
| CN106708153A (en) * | 2017-03-08 | 2017-05-24 | 长江存储科技有限责任公司 | High-bandwidth low-dropout linear regulator |
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Application publication date: 20190830 |