CN108363324A - A kind of device improving digital regulation resistance resolution ratio - Google Patents
A kind of device improving digital regulation resistance resolution ratio Download PDFInfo
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- CN108363324A CN108363324A CN201810229807.0A CN201810229807A CN108363324A CN 108363324 A CN108363324 A CN 108363324A CN 201810229807 A CN201810229807 A CN 201810229807A CN 108363324 A CN108363324 A CN 108363324A
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- digital regulation
- regulation resistance
- resistance
- module
- resolution ratio
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- 230000033228 biological regulation Effects 0.000 title claims abstract description 164
- 230000005611 electricity Effects 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Adjustable Resistors (AREA)
Abstract
The present invention discloses a kind of device improving digital regulation resistance resolution ratio, digital regulation resistance group module is set, it is then connected in controller module after the sliding end of each digital regulation resistance is connected, it is equivalent to one concatenated digital regulation resistance of every increase, the resolution ratio of digital regulation resistance group module puies forward high-resolution purpose just as the resolution ratio of the digital regulation resistance accordingly increases to reach；Digital regulation resistance group mould digital regulation resistance in the block, connection can be also combined, with 1 digital regulation resistance or 2 digital regulation resistances being connected in series with as the sliding end of other digital regulation resistances, the sliding end of the last one digital regulation resistance after combination is connected is connected to controller module, or, the sliding end of most final two digits potentiometer is connected to controller module, then the resolution ratio of digital regulation resistance group module accordingly increases with the digit of the resolution ratio of each digital regulation resistance, increased ratio is than being connected in series with the resolution ratio bigger that mode obtains, further increase resolution ratio.
Description
Technical field
The present invention relates to the control systems of digital regulation resistance, and in particular to a kind of dress improving digital regulation resistance resolution ratio
It sets.
Background technology
Digital regulation resistance is numerical control programmable resistance, with digital control scheme adjusting resistance value, has using flexible, noise
Low, anti-interference, the features such as being not easy to be stained.Digital regulation resistance is made of nominal resistance array, switch and decoder, and Resistor Array Projector is shown
The tap that can be accessed by sliding end, the break-make of electronic switch is determined by decoder, to realize the change of sliding end position.Number
The resolution ratio of potentiometer determines by the digit of nominal resistance and decoder, nominal resistance under the same conditions, the position of decoder
Number it is more, digital regulation resistance resolution ratio is higher, decoder digit under the same conditions, nominal resistance is smaller, digital current potential
Device resolution ratio is higher.In the application of digital regulation resistance, it usually needs properly increase its resolution ratio according to demand and reuse, again
The new high-resolution digital regulation resistance of purchase, cost increase.It is desirable to carry out in structure based on existing digital regulation resistance
Improvement, improve resolution ratio.
Invention content
The present invention provides a kind of device improving digital regulation resistance resolution ratio, solves of the existing technology in practical application
When, the not high enough problem of the resolution ratio of digital regulation resistance.
The present invention solves technical problem by the following technical programs：
A kind of device improving digital regulation resistance resolution ratio, including controller module and digital regulation resistance group module；It is described
Controller module is electrically connected with digital regulation resistance group module；The digital regulation resistance group module includes at least M digital current potential
Device, M are positive integer, M >=3, each digital regulation resistance series connection or combination connection.
Further, the M digital regulation resistance is connected in series with；The M digital regulation resistance be the first digital regulation resistance,
Second digital regulation resistance, M-digit potentiometer；The sliding end of each digital regulation resistance is connected in series with, and obtains a public sliding end,
The public sliding end is connected to controller module；The fixing end of each digital regulation resistance is sequentially connected in series, the first digital current potential
One of device fixing end is grounded, and one of M-digit potentiometer fixing end is connected to controller module.
Further, the digital regulation resistance group module includes 3 digital regulation resistances, this 3 digital regulation resistance difference
For first digit potentiometer, second digit potentiometer and third digit potentiometer；The first digit potentiometer
One of fixing end ground connection, another fixing end are connected to controller module, and wherein the one of the second digit potentiometer
A fixing end ground connection, another fixing end are connected to controller module, and the sliding end of the first digit potentiometer is connected to
The sliding end of one of third digit potentiometer fixing end, the second digit potentiometer is connected to third digit
Another fixing end of potentiometer；The sliding end of the third digit potentiometer is connected to controller module.
Further, the digital regulation resistance group module includes 4 digital regulation resistances, this 4 digital regulation resistance difference
For the 1st digital regulation resistance, the 2nd digital regulation resistance, the 3rd digital regulation resistance and the 4th digital regulation resistance；Described 1st
One of digital regulation resistance fixing end is grounded, another fixing end is connected to controller module, described 2nd digital current potential
One of device fixing end is grounded, another fixing end is connected to controller module, the sliding of the 1st digital regulation resistance
End is connected to one of the 3rd digital regulation resistance fixing end, and the sliding end of the 2nd digital regulation resistance is connected to the 4th
One fixing end of a digital regulation resistance, another fixing end of the 3rd digital regulation resistance and the 4th digital regulation resistance
Another fixing end connects；The sliding end of 3rd digital regulation resistance connects after connecting with the sliding end of the 4th digital regulation resistance
It is connected to controller module.
Further, further include non-volatile memory module, the non-volatile memory module and controller module
Connection, is written and read under the control of controller module.
Further, further include electricity group module；The electricity group module connects under the control of controller module
Into digital regulation resistance group module.
Further, the electricity group module includes resistance circuit and selected on-off circuit；The resistance circuit contains
At least P resistance, P are positive integer, and the integral multiple that P is 2, each resistance is sequentially connected in series；In the selected on-off circuit
Number of switches is identical as resistance quantity, and 1 resistance corresponds to 1 switch；The selected on-off circuit receives the control of controller module
Signal processed connects wherein 1 switch, at least one resistance is connected in digital regulation resistance group module.
Compared with prior art, there are following features：
1, digital regulation resistance group module is set, controller module is then connected to after the sliding end of each digital regulation resistance is connected
In, as soon as being equivalent to every increase concatenated digital regulation resistance, the resolution ratio of digital regulation resistance group module is with the number current potential
The resolution ratio of device accordingly increases, and high-resolution purpose is put forward to reach；
2, digital regulation resistance group mould digital regulation resistance in the block can also be combined connection, with 1 digital regulation resistance or
2 digital regulation resistances being connected in series with are as the sliding end of other digital regulation resistances, the last one number after combination is connected
The sliding end of potentiometer is connected to controller module, alternatively, the sliding end of most final two digits potentiometer is connected to control
Device module processed, then the resolution ratio of digital regulation resistance group module accordingly increase with the digit of the resolution ratio of each digital regulation resistance,
Increased ratio further increases resolution ratio than being connected in series with the resolution ratio bigger that mode obtains；
3, resistance module is set, the resistance of 2 integral multiple quantity is inside set, number electricity is combined under the control of controller module
Position device group module uses, and the resolution ratio of digital regulation resistance can be made to increase with 2 integral multiple, can equally reach raising resolution ratio
Purpose.
Description of the drawings
Fig. 1 is structure of the invention functional block diagram.
Fig. 2 is a kind of structure principle chart of digital regulation resistance group module.
Fig. 3 is another structure principle chart of digital regulation resistance group module.
Fig. 4 is another structure principle chart of digital regulation resistance group module.
Fig. 5 is the structure principle chart of resistance module.
Specific implementation mode
The invention will be further described with reference to embodiments, but the invention is not limited in these embodiments.
A kind of device improving digital regulation resistance resolution ratio, including controller module and digital regulation resistance group module；It is described
Controller module is electrically connected with digital regulation resistance group module；The digital regulation resistance group module includes at least M digital current potential
Device, M are positive integer, and M >=3, the M digital regulation resistance is the first digital regulation resistance, the second digital regulation resistance, M-digit electricity
Position device；The sliding end of each digital regulation resistance is connected in series with, and obtains a public sliding end, and the public sliding end is connected to control
Device module；The fixing end of each digital regulation resistance is sequentially connected in series, one of first digital regulation resistance fixing end ground connection, the
One of M-digit potentiometer fixing end is connected to controller module.Each digital regulation resistance is connected in series with, often increases by 1
A digital regulation resistance is connected, and the resolution ratio of digital regulation resistance group module just accordingly increases, and user can increase and decrease string according to demand
The quantity of the digital regulation resistance of connection.If three resolution ratio are 1/63 digital regulation resistance series connection, resolution ratio can be of about 1/ (63
+ 63+64), four resolution ratio are 1/63 digital regulation resistance series connection, and resolution ratio is up to 1/ (63+63+63+64).Such as series connection
It is different to connect digital regulation resistance resolution ratio, then the resolution ratio of digital regulation resistance group module is accordingly increased with identical calculation.
Fig. 1 gives structure of the invention functional block diagram, and Fig. 2 gives in digital regulation resistance group module containing 4 concatenated digital current potentials
The structure principle chart of device.
Improve resolution ratio in series, some are slow for increased multiple, and the connection type that can also be combined is faster
Improve resolution ratio in ground.Fig. 3, which gives 3 digital regulation resistances and is combined connection, carries high-resolution structure principle chart, in Fig. 3
In, the digital regulation resistance group module includes 3 digital regulation resistances, this 3 digital regulation resistances are respectively first digit electricity
Position device, second digit potentiometer and third digit potentiometer；One of first digit potentiometer fixing end
Ground connection, another fixing end are connected to controller module, and one of described second digit potentiometer fixing end is grounded, separately
One fixing end is connected to controller module, and the sliding end of the first digit potentiometer is connected to third digit potentiometer
One of fixing end, the sliding end of the second digit potentiometer be connected to third digit potentiometer another is solid
Fixed end；The sliding end of the third digit potentiometer is connected to controller module.Resolution ratio such as this 3 digital regulation resistances is equal
It is 1/63, then the resolution ratio of the digital regulation resistance group module of Fig. 2 is 1/ (63*63), it is seen that resolution ratio, which has, to be greatly improved.
Fig. 4, which gives 4 digital regulation resistances and is combined connection, carries high-resolution structure principle chart, in Fig. 4, described
Digital regulation resistance group module includes 4 digital regulation resistances, this 4 digital regulation resistances are respectively the 1st digital regulation resistance, the 2nd
A digital regulation resistance, the 3rd digital regulation resistance and the 4th digital regulation resistance；One of described 1st digital regulation resistance is solid
Fixed end is grounded, another fixing end is connected to controller module, the fixed termination of one of described 2nd digital regulation resistance
Ground, another fixing end are connected to controller module, and the sliding end of the 1st digital regulation resistance is connected to the 3rd number electricity
Position one of device fixing end, the sliding end of the 2nd digital regulation resistance be connected to the 4th digital regulation resistance one are solid
Another fixing end of fixed end, the 3rd digital regulation resistance is connect with another fixing end of the 4th digital regulation resistance；Institute
State the 3rd digital regulation resistance sliding end connect with the sliding end of the 4th digital regulation resistance after be connected to controller module.Fig. 4
Digital regulation resistance group module resolution ratio be 1/ (63* (63+64)), relative to Fig. 3, resolution ratio gets a greater increase.With
Family can increase and decrease the quantity of digital regulation resistance according to demand.
It is intended to readjust digital regulation resistance sliding end when digital regulation resistance group module to avoid using every time, the present invention is also
Non-volatile memory module is set, and the non-volatile memory module is connect with controller module, in controller module
It is written and read under control.When work, controller module control digital regulation resistance group module slides into ideal position, the ideal position
Corresponding numerical value can be write such as non-volatile memory module, and when each system electrification, controller module reading is stored in non-volatile
Property memory module in ideal position information, will be worth accordingly write-in digital regulation resistance group module in.
Electricity group module can be also set according to demand；The electricity group module connects under the control of controller module
Into digital regulation resistance group module.The electricity group module includes resistance circuit and selected on-off circuit；The resistance circuit
Containing at least P resistance, P is positive integer, and the integral multiple that P is 2, each resistance is sequentially connected in series；The selected on-off circuit
In number of switches it is identical as resistance quantity, 1 resistance corresponds to 1 switch；The selected on-off circuit receives controller module
Control signal, connect wherein 1 switch, at least one resistance is connected in digital regulation resistance group module.Fig. 5 gives electricity
Resistance module contains the structure principle chart of 4 resistance, and 4 resistance are sequentially connected in series, and each resistance corresponds to a selecting switch, Ge Ge electricity
The terminal of resistance is connected to multidiameter option switch circuit, under the control of controller module, wherein 1 way switch is connected, it will at least 1
A resistance is connected to digital regulation resistance group module, is used in conjunction with digital regulation resistance group module, to improve resolution ratio.
Claims (7)
1. a kind of device improving digital regulation resistance resolution ratio, it is characterised in that：
Including controller module and digital regulation resistance group module；The controller module is electrically connected with digital regulation resistance group module；
The digital regulation resistance group module includes at least M digital regulation resistance, and M is positive integer, M >=3, each digital regulation resistance series connection
Or combination connection.
2. a kind of device improving digital regulation resistance resolution ratio according to claim 1, it is characterised in that：
The M digital regulation resistance is connected in series with；The M digital regulation resistance is the first digital regulation resistance, the second digital current potential
Device, M-digit potentiometer；The sliding end of each digital regulation resistance is connected in series with, and obtains a public sliding end, the public sliding
End is connected to controller module；The fixing end of each digital regulation resistance is sequentially connected in series, one of first digital regulation resistance
Fixing end is grounded, and one of M-digit potentiometer fixing end is connected to controller module.
3. a kind of device improving digital regulation resistance resolution ratio according to claim 1, it is characterised in that：
The digital regulation resistance group module includes 3 digital regulation resistances, this 3 digital regulation resistances are respectively first digit electricity
Position device, second digit potentiometer and third digit potentiometer；One of first digit potentiometer fixing end
Ground connection, another fixing end are connected to controller module, and one of described second digit potentiometer fixing end is grounded, separately
One fixing end is connected to controller module, and the sliding end of the first digit potentiometer is connected to third digit potentiometer
One of fixing end, the sliding end of the second digit potentiometer be connected to third digit potentiometer another is solid
Fixed end；The sliding end of the third digit potentiometer is connected to controller module.
4. a kind of device improving digital regulation resistance resolution ratio according to claim 1, it is characterised in that：
The digital regulation resistance group module includes 4 digital regulation resistances, this 4 digital regulation resistances are respectively the 1st number electricity
Position device, the 2nd digital regulation resistance, the 3rd digital regulation resistance and the 4th digital regulation resistance；1st digital regulation resistance its
In fixing end ground connection, another fixing end is connected to controller module, and one of described 2nd digital regulation resistance is solid
Fixed end is grounded, another fixing end is connected to controller module, and the sliding end of the 1st digital regulation resistance is connected to the 3rd
One of digital regulation resistance fixing end, the sliding end of the 2nd digital regulation resistance are connected to the 4th digital regulation resistance
One fixing end, another fixing end of the 3rd digital regulation resistance and another fixing end of the 4th digital regulation resistance connect
It connects；The sliding end of 3rd digital regulation resistance is connected to controller mould after connecting with the sliding end of the 4th digital regulation resistance
Block.
5. a kind of device of raising digital regulation resistance resolution ratio according to any one of claim 1-4, feature exist
In：
Further include non-volatile memory module, the non-volatile memory module is connect with controller module, in controller
It is written and read under the control of module.
6. a kind of device improving digital regulation resistance resolution ratio according to claim 5, it is characterised in that：
It further include electricity group module；The electricity group module is connected to digital regulation resistance group under the control of controller module
In module.
7. a kind of device improving digital regulation resistance resolution ratio according to claim 6, it is characterised in that：
The electricity group module includes resistance circuit and selected on-off circuit；The resistance circuit contains at least P resistance, P
For positive integer, the integral multiple that P is 2, each resistance is sequentially connected in series；Number of switches in the selected on-off circuit and resistance
Quantity is identical, and 1 resistance corresponds to 1 switch；The selected on-off circuit receives the control signal of controller module, connects wherein
1 switch, at least one resistance is connected in digital regulation resistance group module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810229807.0A CN108363324A (en) | 2018-03-20 | 2018-03-20 | A kind of device improving digital regulation resistance resolution ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810229807.0A CN108363324A (en) | 2018-03-20 | 2018-03-20 | A kind of device improving digital regulation resistance resolution ratio |
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| CN108363324A true CN108363324A (en) | 2018-08-03 |
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| CN201810229807.0A Pending CN108363324A (en) | 2018-03-20 | 2018-03-20 | A kind of device improving digital regulation resistance resolution ratio |
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| CN202770893U (en) * | 2012-07-23 | 2013-03-06 | 山东交通学院 | High-resolution step-by-step regulation voltage divider based on DCP (Digitally Controlled Potentiometers) tap number expander circuit |
| CN103199825A (en) * | 2013-03-02 | 2013-07-10 | 山东交通学院 | Method and circuit for regulating and controlling DDS output signal amplitudes based on DCPs |
| CN103488224A (en) * | 2013-10-10 | 2014-01-01 | 中国科学院上海高等研究院 | Method, system and circuit for adjusting digital potentiometers based on specific value |
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| CN205318949U (en) * | 2015-11-09 | 2016-06-15 | 上海凌翼动力科技有限公司 | Quick infinitely variable control resistor of wide range digit |
| CN107317566A (en) * | 2017-07-25 | 2017-11-03 | 铂元智能科技(北京)有限公司 | High-resolution digital potentiometer |
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| US20050212537A1 (en) * | 2004-03-26 | 2005-09-29 | Honeywell International Inc. | Potentiometer Providing a High Resolution |
| CN202770893U (en) * | 2012-07-23 | 2013-03-06 | 山东交通学院 | High-resolution step-by-step regulation voltage divider based on DCP (Digitally Controlled Potentiometers) tap number expander circuit |
| CN103199825A (en) * | 2013-03-02 | 2013-07-10 | 山东交通学院 | Method and circuit for regulating and controlling DDS output signal amplitudes based on DCPs |
| CN103488224A (en) * | 2013-10-10 | 2014-01-01 | 中国科学院上海高等研究院 | Method, system and circuit for adjusting digital potentiometers based on specific value |
| CN105575570A (en) * | 2015-11-09 | 2016-05-11 | 上海凌翼动力科技有限公司 | Wide-range digital rapid infinitely-adjustable resistor device |
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Application publication date: 20180803 |