CN1171604A - 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
- CN1171604A CN1171604A CN 96108852 CN96108852A CN1171604A CN 1171604 A CN1171604 A CN 1171604A CN 96108852 CN96108852 CN 96108852 CN 96108852 A CN96108852 A CN 96108852A CN 1171604 A CN1171604 A CN 1171604A
- 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.)
- Granted
Links
Images
Landscapes
- Attenuators (AREA)
Abstract
A method for automatic regulation of electric resistor by means of digital signals uses such devices as resistor array, relay array, power driver array, sockets connected to external digital signals and lead wire. Said digital signals are input to power driver array whose output is connected to input of relay array whose relays are corresponding to the resistors in resistor array. Both ends of resistor are respectively connected to normally open and close contacts of relay to form resistor regulation unit. All the resistor regulation units are serially connected to form a resistor regulation circuit.
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 finished by each multiplying power adjusting shelves, each multiplying power is regulated shelves ten adjusting positions, the operating process trouble, and the resistance of repeated use similar resistance is connected in series in same multiplying power shelves;
3, to the calculating of resistance value by manually different adjustment shelves resistance value being added up, can not calculate current resistance value automatically.
The objective of the invention is to propose a kind ofly can realize resistance automation regulation technology, 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 the adjusting of digital quantity signal control realization, be similar to decimal numeral binary coding method for resistance and select different weights resistance resistance; And select the normally-closed contact contact resistance to equal the relay of normally opened contact contact resistance, constitute a resistance adjustment unit by one of them resistance and a relay, in the resistance adjustment unit, two end points of resistance are succeeded the normally-closed contact of electrical equipment respectively, normally opened contact, this resistance adjustment unit repeat circuit common (being moving contact) connects end points of resistance in another resistance adjustment unit, such connected mode of resistance and relay in the resistance adjustment unit, resistance and relay common have been guaranteed, 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, 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 spans are: 2-8;
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.
Resistance R 4, R3, R2, R1 belong to same multiplying power shelves among Fig. 2, and its weights are respectively 8,4,2,1, and J4, J3, J2, J1 are four relays, and wherein: normally opened contact, the normally-closed contact of the two termination J1 of R1, formation weights are 1 resistance adjustment unit; By that analogy, the two ends of R2, R3, R4 connect normally opened contact, the normally-closed contact of J2, J3, J4 respectively, and the formation weights are 2,4,8 resistance adjustment unit; The common of J4 connects the left end point of R3, and the common of J3 connects the left end point of R2, and the common of J2 connects the left end point of R1;
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 DI01; 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 DI02, DI03, DI04.
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 DI01, DI02, DI03, DI04 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 DI02, DI03 output high level, DI01, DI04 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 export high level by digital quantity signal DI01, DI02, DI03, DI04 output low level, at this moment the resistance in the R3 resistance adjustment unit reduces 4, 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 are little by 3 with alkali, realize reducing resistance value adjusting.
Fig. 3 is an alternative embodiment of the invention circuit diagram.
Microcomputer computer 5 is a PC series microcomputer among Fig. 3, 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, uses the 0...3 output channel of PCLD-785B relay drive plate, and NC0, NO0 connect resistance two ends, 0.01 Europe respectively, and C0 meets C1; Similarly, NC1 and NO1, NC2 and NO2, NC3 and NO3 connect 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 of multiplying power for * 0.01 resistance adjustment shelves, multiplying power is * 0.1, * 1, * 10, * 100, * 1000 resistance adjustment shelves respectively with four passages of PCLD-785B relay drive plate be one group corresponding, constitute all the other five resistance adjustment shelves, wherein: multiplying power is used 0.2 Europe for * 0.1 resistance adjustment shelves, 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 0.1 Europe respectively, 0.2 Europe, 0.4 Europe, 0.2 resistance two ends, Europe, C4 meets C5, NC5 meets NC6, and C6 meets C7; Multiplying power is used 2 Europe, 4 Europe, 2 Europe, 1 a Ou Si resistance for * 1 resistance adjustment shelves, 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 used 20 Europe, 40 Europe, 20 Europe, 10 a Ou Si resistance for * 10 resistance adjustment shelves, the 12...15 output channel of relay drive plate, NC12 and NO12, NC13 and NO13, NC14 and NO14, NC15 and NO15 branch connect 10 Europe, 20 Europe, 40 Europe, resistance two ends, 20 Europe in addition, C12 meets C13, NC13 meets NC14, and C14 meets C15; Multiplying power is used 200 Europe, 400 Europe, 200 Europe, 100 a Ou Si resistance for * 100 resistance adjustment shelves, 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 used 2000 Europe, 4000 Europe, 2000 Europe, 1000 a Ou Si resistance for * 1000 resistance adjustment shelves, 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, 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 spans are: 2-8;
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. according to claim 2 or 3 described a kind of resistance automatic regulating equipments, it 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 2, 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 true CN1171604A (en) | 1998-01-28 |
| CN1071918C 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309345A (en) * | 2013-04-12 | 2013-09-18 | 江苏浩峰汽车附件有限公司 | Device and method for simulating temperature variation of Pt100 thermal resistor |
| 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 |
| CN108983671A (en) * | 2018-08-07 | 2018-12-11 | 中国石油大学(华东) | A kind of constant-current control device for AC influence corrosion experiment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4333065A1 (en) * | 1993-09-29 | 1995-03-30 | Bosch Gmbh Robert | Electronic switch |
-
1996
- 1996-07-20 CN CN96108852A patent/CN1071918C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309345A (en) * | 2013-04-12 | 2013-09-18 | 江苏浩峰汽车附件有限公司 | Device and method for simulating temperature variation of Pt100 thermal resistor |
| 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 |
| CN108983671A (en) * | 2018-08-07 | 2018-12-11 | 中国石油大学(华东) | A kind of constant-current control device for AC influence corrosion experiment |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1071918C (en) | 2001-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1206673C (en) | Thyristor tap changer | |
| JPH07505971A (en) | On-load tap changer with motor drive | |
| CN1928763A (en) | Monitoring device for main transfer wind cooling system and its working method | |
| CN1071918C (en) | Method for automatic regulation of electric resistance and its device | |
| CN2253042Y (en) | Vacuum loaded shunting switch | |
| CN101354417A (en) | Circuit board test device of electrical energy meter based on virtual instrument technique | |
| CN2378150Y (en) | Laser measuring, digital control precision automatic cutting device | |
| CN105405708A (en) | Motor direct-drive high speed grounding switch | |
| CN2824111Y (en) | Monitor structure for main air cooling changing system | |
| CN210924270U (en) | Comprehensive training device for modern speed regulating system | |
| CN2369394Y (en) | Automatic intellectual low voltage reactive compensator | |
| CN208581063U (en) | A kind of novel reactive compensation control system | |
| CN2494067Y (en) | Vacuum idle automatic compensator | |
| CN2432720Y (en) | Special-purpose high starting torque energy-saving motor for pumping unit with intelligent controlling equipment | |
| CN105717969A (en) | Multipath numerical-control high-voltage direct-current power system | |
| CN1022786C (en) | Self-adapting compensating-in-place method and apparatus thereof | |
| CN201878090U (en) | Air conditioner, alternating-current motor and speed regulating device of alternating-current motor | |
| CN2766451Y (en) | Redundancy soft starting device for AC motor | |
| CN210669536U (en) | Self-adaptive distribution transformer | |
| CN2510974Y (en) | Solid-state on-load switch | |
| CN2278288Y (en) | Dry type vacuum load dividing intermediate voltage-regulating switch | |
| CN2381004Y (en) | On-line regulation tap switch for capacitor | |
| CN2796242Y (en) | Electric control and saving device | |
| CN208270979U (en) | A kind of novel combination switch | |
| CN1036958C (en) | Load selector used in stepping switch of adjustable transformer |
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 |