CN1071918C - Method for automatic regulation of electric resistance and its device - Google Patents
Method for automatic regulation of electric resistance and its device Download PDFInfo
- Publication number
- CN1071918C CN1071918C CN96108852A CN96108852A CN1071918C CN 1071918 C CN1071918 C CN 1071918C CN 96108852 A CN96108852 A CN 96108852A CN 96108852 A CN96108852 A CN 96108852A CN 1071918 C CN1071918 C CN 1071918C
- Authority
- CN
- China
- Prior art keywords
- resistance
- europe
- relay
- array
- resistance adjustment
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Attenuators (AREA)
Abstract
The present invention relates to an automatic regulation method of a resistor and a device thereof. The device comprises a resistor array 1, a relay array 2, a power driving array 3, a connector assembly and a leading wire for realizing automatic regulation, wherein the connector assembly and the leading wire are connected with an external digital quantity signal 4; the digital quantity signal 4 is connected with the input of the power driving array 3 of which the output is connected with the input of the relay array 2; a relay in the relay array 2 corresponds to a resistor in the resistor array 1; both endpoints of the resistor are respectively connected with the normally open contact and the normally closed contact of the relay to form resistor regulation units which are connected in series so as to form a resistor regulation circuit. The present invention can use the digital quantity signal 4 to realize the automatic regulation of the resistor.
Description
The present invention relates to a kind of method for automatic regulation of electric resistance and device thereof.
In the industrial electric field, will use resistance usually, present method is to use resistance box that one standard resistor is provided, and resistance box in use has the following disadvantages:
1, to the adjusting of resistance by artificial twist switch, can not realize that the automation of resistance is regulated;
2, the adjusting of resistance is regulated the multiplying power shelves by each and finish, each regulates the multiplying power shelves ten position adjustments, operating process trouble, and the electricity value of repeated use similar resistance;
3, the calculating to resistance value manually adds up to different multiplying shelves resistance value, can not calculate current resistance value automatically.
The objective of the invention is to propose a kind of automation regulation technology that can realize resistance, and the resistance automatic regulating equipment of this technology is adopted in design.
For achieving the above object, the present invention adopts the resistance adjustment circuit of being made up of resistance, relay and power drive device.Utilize digital quantity signal control to realize that the binary coding method that is similar to denary number for resistance is selected different weights resistance to resistance adjustment; And select the normally-closed contact contact resistance to equal the relay of normally opened contact contact resistance, constitute the regulon of a resistance by one of them resistance and relay, in the resistance adjustment unit, the normally-closed contact of single relay, two end points of a normally opened contact order resistance, this resistance adjustment unit repeat circuit common connects end points of resistance in another resistance adjustment unit, such connected mode of resistance and relay in the resistance adjustment unit, in resistance and relay common, form the branch road that is connected in series, this be connected in series branch road and relay normally-closed contact between the normally opened contact, circuit forms parallel connection between the common;
The resistance adjustment units in series that is made of respectively the weights resistance of four same multiplying powers and four relays is formed the resistance adjustment shelves of this multiplying power; The resistance adjustment shelves of a plurality of different multiplying are composed in series a resistance adjustment circuit.
Adjusting for resistance, be to realize: during initial condition by the resistance that changes each resistance adjustment unit, resistance adjustment unit repeat circuit common and normally-closed contact are connected, are disconnected with normally opened contact, the resistance value of this resistance adjustment unit is its initial resistivity value, i.e. the relay contact contact resistance; When resistance adjustment unit repeat circuit common and normally opened contact connect, when disconnecting with normally-closed contact, the resistance value of this resistance adjustment unit is resistance and a relay contact resistance value sum in this resistance adjustment units in series branch road, compare with its initial condition, the changes in resistance amount is the resistance of resistance in this resistance adjustment unit.For the resistance adjustment shelves of forming by four resistance of same multiplying power, according to decimal numeral binary coding method, change resistance adjustment unit repeat circuit state, will change the resistance value of resistance adjustment shelves, be implemented in the resistance adjustment in this adjusting shelves scope.Adjusting to whole resistance adjustment line resistance resistance then is to change by the resistance adjustment to these each resistance adjustment shelves of resistance adjustment circuit to finish.
Below in conjunction with drawings and Examples the present invention is elaborated.
Fig. 1 is a circuit composition frame chart of the present invention.
Fig. 2 is one embodiment of the present of invention circuit diagram.
Fig. 3 is an alternative embodiment of the invention circuit diagram.
In the resistance automatic adjustment technology, form the resistance adjustment circuit by resistance, relay, power driving circuit, resistance is chosen the weights resistance of different multiplying, wherein: constitute a resistance adjustment unit by a resistance and a relay; Weights resistance and four relays by four same multiplying powers are formed resistance adjustment shelves; Between the resistance adjustment unit, and be connected in series between the resistance adjustment shelves; In the same resistance adjustment shelves, select four weights resistance by decimal numeral binary coding method, wherein the weights of three resistance are: 1,2,4, the four resistance weights are: 2,4,8;
With the change of digital quantity signal control realization, realize the automatic adjusting of resistance, wherein: utilize the high level state of digital quantity signal or low level state power controlling drive circuit to be in conducting state or cut-off state to resistance adjustment circuit resistance; Utilize power driving circuit to be in common and normally opened contact connection or the common and the normally-closed contact connection of conducting state or cut-off state control relay.
According to the resistance automatic regulating equipment of above-mentioned resistance automatic adjustment technology design as shown in Figure 1, it is formed by being contained in electric resistance array 1, relay array 2, power drive array 3, the connector assembly that is connected with external digital amount signal 4 on the printed substrate and going between.Wherein: digital quantity signal 4 connects the input of power drive array 3, by the conducting of the high level of digital quantity signal or low level power controlling driving element or end; The input of electrical equipment array 2 is succeeded in the output of power drive array 3, relay in each power drive device correspondence and the relay array 2, the input control line circle of the output of power drive device and relay is connected in series, by the power drive device conducting or by the corresponding relay coil that connects of control electric or dead electricity, realize the common of this relay and normally opened contact connection or with the connection of normally-closed contact; Resistance in the corresponding electric resistance array 1 of relay array 2 repeat circuits, two end points by resistance connect corresponding relay normally open contact with it, normally-closed contact, constitute a resistance adjustment unit, previous resistance adjustment unit repeat circuit common connects an end points of resistance in the next resistance adjustment unit, is connected in series between the resistance adjustment unit to form a resistance adjustment circuit.
Fig. 2 is one embodiment of the present of invention circuit diagram.
BG1 and D1, BG2 and D2, BG3 and D3, BG4 and D4 constitute power drive unit respectively, and BG1 output is connected with the control coil of J1, and D1 is in parallel with the control coil of J1, and BG1 is input as digital quantity signal DIO1; Similarly, BG2, BG3, BG4 output are connected with the control coil of J2, J3, J4 respectively, and D2, D3, D4 are in parallel with the control coil of J2, J3, J4 respectively, and the input of BG2, BG3, BG4 is similarly digital quantity signal DIO2, DIO3, DIO4.
Following its operation principle of surface analysis.
In resistance adjustment, increasing resistance value in the circuit or the resistance value that reduces in the circuit is controlled by digital quantity signal, during initial equilibrium state, digital quantity signal DIO1, DIO2, DIO3, DIO4 are low level, triode BG1, BG2, BG3, BG4 end, the common of relay J 1, J2, J3, J4 respectively and separately relay normally-closed contact is connected, and at this moment 2 resistance values of resistance adjustment circuit A, B are its initial condition resistance value.
When increasing resistance value,,, change the resistance value of resistance adjustment unit, thereby change resistance adjustment circuit A, 2 resistance values of B according to decimal numeral binary coding rule according to the size of increased resistance value.As increasing resistance value from initial equilibrium state is 6, then by digital quantity signal DIO2, DIO3 output high level, DIO1, DIO4 keep original low level constant, triode BG2, BG3 conducting, the control coil of relay J 2, J3 gets, at this moment: the common of relay J 2 and its normally-closed contact disconnect and connect with its normally opened contact, are 2 resistance be connected in series resistance in R2 resistance adjustment unit quite; The common of relay J 3 and its normally-closed contact disconnect and connect with its normally opened contact, are 4 resistance be connected in series resistance in R3 resistance adjustment unit quite.At this moment 2 resistance values of resistance adjustment circuit A, B will increase by 6, realize increasing resistance value adjusting.
When reducing resistance value, similar and increase resistance adjustment.As reduce resistance value from current state is 3, then by digital quantity signal DIO1, DIO2 output high level, DIO3, DIO4 the output low level at this moment resistance in the R3 resistance adjustment unit reduce 4, and the resistance in the R1 resistance adjustment unit increases by 1, and the resistance value in R2, the R4 resistance adjustment unit is constant.At this moment 2 resistance values of resistance adjustment circuit A, B will reduce 3, realize reducing resistance value adjusting.
Fig. 3 is an alternative embodiment of the invention circuit diagram.
Among Fig. 3 by microcomputer computer control digital quantity interface board, digital quantity signal 4 is by grinding magnificent PCL-724 digital quantity interface board output, relay array 2, power drive array 3 constitute by grinding magnificent PCLD-785B relay drive plate, electric resistance array by multiplying power be respectively * 0.01, * 0.1, * 1, * 10, * 100, * 2,4,2,1 weights resistance of 1,000 six shelves constitutes;
PCL-724 digital quantity interface board is exported 24 road digital quantity signal D0...D23 and is connected to PCLD-785B relay drive plate, No. 24 relay output channels of difference control relay drive plate, wherein: the common of 0 passage relay is C0, normally-closed contact NC0, normally opened contact NO0; By that analogy, the common of 1...23 passage relay is C1...C23, normally-closed contact NC1...NC23, normally opened contact NO1...NO23;
Multiplying power is used 0.02 Europe, 0.04 Europe, 0.02 Europe, 0.01 a Ou Si resistance for * 0.01 resistance adjustment shelves; Use the 0...3 output channel of PCLD-785B relay drive plate, NC0, NO0 connect resistance two ends, 0.01 Europe respectively, and C0 meets C1; Similarly, NC1 and NO1, NC2 and NO2, NC3 and NO3 meet 0.02 Europe, 0.04 Europe, 0.02 Europe resistance and NO2, NC3 respectively and NO3 connects 0.02 Europe, 0.04 Europe, resistance two ends, 0.02 Europe respectively, and NC1 meets NC2, and C2 meets C3;
Be similar to the connected mode that multiplying power is X0.01 resistance adjustment shelves, multiplying power is X0.1, X1, X10, X100, X1000 resistance adjustment shelves respectively with four passages of PCLD-782B relay drive plate be one group corresponding, constitute all the other five resistance adjustment shelves, wherein: multiplying power is that X0.1 resistance adjustment shelves use 0.2 Europe, 0.4 Europe, 0.2 Europe, 0.1 Ou Si resistance, the 4...7 output channel of relay drive plate, NC4 and NO4, NC5 and NO5, NC6 and NO6, NC7 and NO7 connect 0.01 Europe respectively, 0.02 Europe, 0.04 Europe, 0.02 resistance two ends, Europe, C4 meets C5, NC5 meets NC6, and C6 meets C7; Multiplying power is that X1 resistance adjustment shelves use 2 Europe, 4 Europe, 2 Europe, 1 a Ou Si resistance, the 8...11 output channel of relay drive plate, NC8 and NO8, NC9 and NO9, NC10 and NO10, NC11 and NO11 connect 1 Europe, 2 Europe, 4 Europe, resistance two ends, 2 Europe respectively, C8 meets C9, NC9 meets NC10, and C10 meets C11; Multiplying power is that X10 resistance adjustment shelves use 20 Europe, 40 Europe, 20 Europe, 10 a Ou Si resistance, the 12...15 output channel of relay drive plate, NC12 and NO12, NC13 and NO13, NC14 and NO14, NC15 and NO15 connect 10 Europe, 20 Europe, 40 Europe, resistance two ends, 20 Europe respectively, C12 meets C13, NC13 meets NC14, and C14 meets C15; Multiplying power is that X100 resistance adjustment shelves use 200 Europe, 400 Europe, 200 Europe, 100 a Ou Si resistance, the 16...19 output channel of relay drive plate, NC16 and NO16, NC17 and NO17, NC18 and NO18, NC19 and NO19 connect 100 Europe, 200 Europe, 400 Europe, resistance two ends, 200 Europe respectively, C16 meets C17, NC17 meets NC18, and C18 meets C19; Multiplying power is that X1000 resistance adjustment shelves use 2000 Europe, 4000 Europe, 2000 Europe, 1000 a Ou Si resistance, the 20...23 output channel of relay drive plate, NC20 and NO20, NC21 and NO21, NC22 and NO22, NC23 and NO23 connect 1000 Europe, 2000 Europe, 4000 Europe, resistance two ends, 2000 Europe respectively, C20 meets C21, NC21 meets NC22, and C22 meets C23.
The connected mode of different multiplying resistance adjustment shelves is: NC3 meets NC7, NC4 and meets NC8, NC11 and connect that NC15, NC12 meet NC16, NC19 meets NC23.
Above-mentioned each technical characterictic of the present invention can be done following variation, but they all do not depart from essence of the present invention.Except that producing the output, can use single-chip microcomputer as above-mentioned digital quantity signal by PC; Above-mentioned resistance adjustment shelves weights resistance removes selects 8,4,2,1, and outside 2,4,2,1 coding, can select other coded system.
Claims (5)
1. method for automatic regulation of electric resistance, the resistance adjustment circuit has resistance, its feature also has relay, power driving circuit at this resistance adjustment circuit, and resistance is chosen the weights resistance of different multiplying, wherein: constitute a resistance adjustment unit by a resistance and a relay; Weights resistance and four relays by four same multiplying powers are formed resistance adjustment shelves; Between the resistance adjustment unit, and be connected in series between the resistance adjustment shelves; In the same resistance adjustment shelves, select four weights resistance by decimal numeral binary coding method, wherein the weights of three resistance are: 1,2,4, the four resistance weights are: 2,4,8;
With the change of digital quantity signal control realization, realize the automatic adjusting of resistance, wherein: utilize the high level state of digital quantity signal or low level state power controlling drive circuit to be in conducting state or cut-off state to resistance adjustment circuit resistance; Utilize power driving circuit to be in common and normally opened contact connection or the common and the normally-closed contact connection of conducting state or cut-off state control relay.
2. resistance automatic regulating equipment, comprise the electric resistance array [1] that is contained on the printed substrate, it is characterized in that also being equipped with on the printed substrate relay array [2], power drive array [3], the connector assembly that is connected with external digital amount signal [4] and lead-in wire forms, wherein: digital quantity signal [4] connects the input of power drive array [3], by the conducting of the high level of digital quantity signal or low level power controlling driving element or end; The input of electrical equipment array [2] is succeeded in the output of power drive array [3], relay in each power drive device correspondence and the relay array [2], the input control line circle of the output of power drive device and relay is connected in series, by the power drive device conducting or by the corresponding relay coil that connects of control electric or dead electricity, realize the common of this relay and normally opened contact connection or with the connection of normally-closed contact; Resistance in the corresponding electric resistance array of relay array [2] repeat circuit [1], two end points by resistance connect corresponding relay normally open contact with it, normally-closed contact, constitute a resistance adjustment unit, previous resistance adjustment unit repeat circuit common connects an end points of resistance in the next resistance adjustment unit, is connected in series between the resistance adjustment unit to form a resistance adjustment circuit.
3. a kind of resistance automatic regulating equipment according to claim 2 is characterized in that forming resistance adjustment shelves by weights resistance and four relays of four same multiplying powers.
4. a kind of resistance automatic regulating equipment according to claim 3 is characterized in that the weights of resistance in the resistance adjustment shelves are: 8,4,2,1.
5. a kind of resistance automatic regulating equipment according to claim 3, it is characterized in that said digital quantity signal [4] is by grinding the output of magnificent PCL-724 numeral template, relay array [2], power drive array [3] constitute by grinding magnificent PCLD-785B relay drive plate, electric resistance array by multiplying power be respectively * 0.01, * 0.1, * 1, * 10, * 100, * 2,4,2,1 weights resistance of 1,000 six shelves constitutes;
PCL-724 digital quantity interface board is exported 24 road digital quantity signal D0...D23 and is connected to PCLD-785B relay drive plate, No. 24 relay output channels of difference control relay drive plate, wherein: the common of 0 passage relay is C0, normally-closed contact NC0, normally opened contact NO0; By that analogy, the common of 1...23 passage relay is C1...C23, normally-closed contact NC1...NC23, normally opened contact NO1...NO23;
Multiplying power is used 0.02 Europe, 0.04 Europe, 0.02 Europe, 0.01 a Ou Si resistance for * 0.01 resistance adjustment shelves;
Multiplying power is used 0.2 Europe, 0.4 Europe, 0.2 Europe, 0.1 a Ou Si resistance for * 0.1 resistance adjustment shelves;
Multiplying power is used 2 Europe, 4 Europe, 2 Europe, 1 a Ou Si resistance for * 1 resistance adjustment shelves;
Multiplying power is used 20 Europe, 40 Europe, 20 Europe, 10 a Ou Si resistance for * 10 resistance adjustment shelves;
Multiplying power is used 200 Europe, 400 Europe, 200 Europe, 100 a Ou Si resistance for * 100 resistance adjustment shelves;
Multiplying power is used 2000 Europe, 4000 Europe, 2000 Europe, 1000 a Ou Si resistance for * 1000 resistance adjustment shelves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96108852A CN1071918C (en) | 1996-07-20 | 1996-07-20 | Method for automatic regulation of electric resistance and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96108852A CN1071918C (en) | 1996-07-20 | 1996-07-20 | Method for automatic regulation of electric resistance and its device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1171604A CN1171604A (en) | 1998-01-28 |
| CN1071918C true CN1071918C (en) | 2001-09-26 |
Family
ID=5120127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96108852A Expired - Fee Related CN1071918C (en) | 1996-07-20 | 1996-07-20 | Method for automatic regulation of electric resistance and its device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1071918C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309345B (en) * | 2013-04-12 | 2016-09-21 | 江苏浩峰汽车附件有限公司 | Pt100 resistance and temperature change modeling device and method |
| TWI617781B (en) * | 2016-11-15 | 2018-03-11 | 財團法人工業技術研究院 | Temperature control method, theparature control devive and temperature control system |
| CN108983671B (en) * | 2018-08-07 | 2020-11-06 | 中国石油大学(华东) | Constant-current control device for alternating-current interference corrosion experiment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0645785A2 (en) * | 1993-09-29 | 1995-03-29 | Robert Bosch Gmbh | Electronic circuitry |
-
1996
- 1996-07-20 CN CN96108852A patent/CN1071918C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0645785A2 (en) * | 1993-09-29 | 1995-03-29 | Robert Bosch Gmbh | Electronic circuitry |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1171604A (en) | 1998-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1206673C (en) | Thyristor tap changer | |
| US4425539A (en) | Control system for AC induction motor | |
| CN1071918C (en) | Method for automatic regulation of electric resistance and its device | |
| CN1928763A (en) | Monitoring device for main transfer wind cooling system and its working method | |
| JPH07505971A (en) | On-load tap changer with motor drive | |
| CN107517520A (en) | A kind of wall control that LED brightness control signal is sent by single live wire switchs | |
| CN2253042Y (en) | Vacuum loaded shunting switch | |
| CN2369394Y (en) | Automatic intellectual low voltage reactive compensator | |
| CN104837251B (en) | A kind of wall controlled LED lamp list live wire light adjusting circuit | |
| CN2432720Y (en) | Special-purpose high starting torque energy-saving motor for pumping unit with intelligent controlling equipment | |
| CN1022786C (en) | Self-adapting compensating-in-place method and apparatus thereof | |
| CN2278288Y (en) | Dry type vacuum load dividing intermediate voltage-regulating switch | |
| CN208581063U (en) | A kind of novel reactive compensation control system | |
| CN2494067Y (en) | Vacuum idle automatic compensator | |
| CN2796242Y (en) | Electric control and saving device | |
| CN2766451Y (en) | Redundancy soft starting device for AC motor | |
| CN2202937Y (en) | High integration quick response ac voltage stabilizer | |
| CN2845267Y (en) | Automatic phase selecting protector for three phase motor | |
| CN1154226C (en) | High start torque power saving motor specially for oil pumping unit and intelligent control equipment | |
| CN1036958C (en) | Load selector used in stepping switch of adjustable transformer | |
| CN2530382Y (en) | Dynamo having multiple control modes | |
| CN2381004Y (en) | On-line regulation tap switch for capacitor | |
| CN2508446Y (en) | Reactive automatic compensation control switch of multiple high-voltage capacitor | |
| CN2468142Y (en) | Non-excitation linear voltage-regulating drum tap changer | |
| CN2195817Y (en) | Automatic controller for compensating box |
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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |