CN110161892A - Static resistance analog circuit - Google Patents
Static resistance analog circuit Download PDFInfo
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- CN110161892A CN110161892A CN201810338429.XA CN201810338429A CN110161892A CN 110161892 A CN110161892 A CN 110161892A CN 201810338429 A CN201810338429 A CN 201810338429A CN 110161892 A CN110161892 A CN 110161892A
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- unit
- resistance
- static
- analog circuit
- static resistance
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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
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21014—Interface, module with relays
Abstract
The present invention relates to electronic technology fields, disclose a kind of static resistance analog circuit.Wherein, which includes: static resistance analogue unit, the static resistance value for the analog electronic equipment when external power supply line is not powered；Status toggle unit, for being connect with main equipment analogue unit from connecting to be switched to the static resistance analogue unit；State switches driving unit, connect with the status toggle unit, for driving the status toggle unit to execute handover operation in external power supply route power-up.As a result, static resistance analogue unit is relatively isolated in electrical connection with main equipment analogue unit, to solve the problems, such as that static resistance value deviation of simulation is excessive.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of static resistance analog circuits.
Background technique
Static resistance before electronic equipment energization, is the important parameter of its electrical characteristic, and test equipment carries out the parameter
Test can diagnose the partial fault mode of the electronic equipment, while be also the important of security inspection before being powered to the equipment
Link, can be to avoid under short-circuit condition the case where energization burning apparatus.More and more abundant with relevant equipment, part electronics is set
Standby mating simulator, such as guided missile simulator, can substitute guided missile, the work such as test training, testability demonstration are completed in cooperation.
Consistent with formal product in order to ensure testing training process, the inspection including static resistance needs to design Static Electro in simulator
Hinder the static resistance value of analog circuit simulation formal product.
When simulating in existing simulator to the parameter, following two method is mainly used:
1) it is designed not directed specifically to resistance simulation, directlys adopt the static resistance value of simulator main equipment, but simulator
Main equipment and formal product it is inconsistent, static resistance value is also inconsistent；
2) simple designs are carried out for resistance simulation, but the design fails to be isolated with simulator main equipment, simulation resistance value is inclined
Difference is very big, while when carrying out multi-channel analog, there is complicated sneak path, and the resistance value of simulation can not be controlled effectively.
The resistance value deviation of above two method simulation is all larger, and the test training process of realization is also inconsistent, affects survey
The effect that training on trial is practiced.Therefore, it is necessary to a kind of electronic equipment static resistance analog circuits, to meet the system of electronic equipment simulator
Design requirement.
Summary of the invention
It is an object of the invention to overcome the shortage of prior art, a kind of static resistance analog circuit is provided, is able to solve
The larger problem of the above-mentioned resistance value deviation simulated in the prior art.
Technical solution of the invention: a kind of static resistance analog circuit, the analog circuit include:
Static resistance analogue unit, the static resistance value for the analog electronic equipment when external power supply line is not powered；
Status toggle unit, for from connect with the static resistance analogue unit be switched to and main equipment analogue unit connect
It connects；
State switches driving unit, connect with the status toggle unit, in external power supply route power-up
The status toggle unit is driven to execute handover operation.
Preferably, the static resistance analogue unit includes static simulation resistance.
Preferably, the static simulation resistance is variable resistance.
Preferably, the status toggle unit includes relay.
Preferably, the relay is multitool double-throw relay.
Preferably, the relay is single-pole double-throw relay.
Preferably, the quantity of the relay is multiple, and the quantity of the static resistance analogue unit and the relay
The quantity of device is identical.
Preferably, the state switching driving unit includes build-out resistor and driving chip.
Through the above technical solutions, resistive mode when electronic equipment static (that is, external power supply route is not powered) may be implemented
The switching of quasi- state and power electronic equipment working condition, so that static resistance analogue unit and main equipment analogue unit are in electricity
It is relatively isolated in gas connection, to solve the problems, such as that static resistance value deviation of simulation is excessive.
Detailed description of the invention
Included attached drawing is used to provide to be further understood from the embodiment of the present invention, and which constitute one of specification
Point, for illustrating the embodiment of the present invention, and come together to illustrate the principle of the present invention with verbal description.It should be evident that below
Attached drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying creation
Property labour under the premise of, be also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of block diagram of static resistance analog circuit provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of static resistance analog circuit provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of example static resistance analog circuit provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of another example static resistance analog circuit provided in an embodiment of the present invention；And
Fig. 5 is that a kind of static resistance analog circuit provided in an embodiment of the present invention is corresponding equivalent in electronic equipment static state
Resistive circuit diagram.
Specific embodiment
Specific embodiments of the present invention are described in detail below in conjunction with attached drawing.In the following description, for solution
Purpose and not restrictive is released, elaborates detail, to help to be apparent from the present invention.However, to those skilled in the art
It is readily apparent that the present invention can also be practiced in the other embodiments departing from these details for member.
It should be noted that only showing in the accompanying drawings in order to avoid having obscured the present invention because of unnecessary details
Gone out with closely related device structure and/or processing step according to the solution of the present invention, and be omitted with relationship of the present invention not
Big other details.
Fig. 1 is a kind of block diagram of static resistance analog circuit provided in an embodiment of the present invention.
Wherein, the static resistance value which for example can be used for electronic equipment is simulated (that is, electronic equipment
Static resistance simulation before energization).
As shown in Figure 1, a kind of static resistance analog circuit provided in an embodiment of the present invention may include:
Static resistance analogue unit 10 (is referred to as static resistance value analogue unit), for being not added in external power supply line
The static resistance value of analog electronic equipment when electric；
Status toggle unit 12, for being switched to and main equipment simulation is single from being connect with the static resistance analogue unit 10
Member 14 connects；
For example, status toggle unit 12 can be switched to power electronic equipment state from static resistance value emulation mode.
Main equipment analogue unit 14 can be used for simulating main equipment, such as guided missile (various airborne equipments), cooperate to substitute guided missile
At work such as test training, testability demonstrations.
State switches driving unit 16, connect with the status toggle unit 12, for adding in the external power supply route
The status toggle unit 12 is driven to execute handover operation when electric.
Through the above technical solutions, resistive mode when electronic equipment static (that is, external power supply route is not powered) may be implemented
The switching of quasi- state and power electronic equipment working condition, so that static resistance analogue unit and main equipment analogue unit are in electricity
It is relatively isolated in gas connection, to solve the problems, such as that static resistance value deviation of simulation is excessive.
For example, static resistance analog circuit of the present invention can be consistent with the external interface of formal product, nothing
Control signal need to additionally be increased, carry out state switching using original external power supply route.
When electronic equipment is in static state, i.e., when external power supply route is not powered, " state switching driving unit ", " state is cut
Change unit " it is failure to actuate.At this point, the connection of external power supply route is " static resistance analogue unit ", with main equipment analogue unit
It is not crosslinked；Meanwhile " state switching driving unit " high-impedance state, when parallel connection imports power supply line, the influence to resistance value simulation is not
Greatly.
When electronic equipment is powered on work, " state switching driving unit " works, and " state switches for output drive signal control
Unit ".At this point, the connection of external power supply route is " main equipment analogue unit ", powers to main equipment analogue unit, do not influence electricity
The normal use of sub- equipment.
Fig. 2 is a kind of schematic diagram of static resistance analog circuit provided in an embodiment of the present invention.
As shown in Fig. 2, according to an embodiment of the present invention, the static resistance analogue unit 10 may include static simulation
Resistance R2.
Wherein, the static simulation resistance can be variable resistance.
Thus, it is possible to which the resistance value by adjusting variable resistance obtains corresponding simulation resistance value, the controllable of simulation resistance value is realized.
Alternatively, the static simulation resistance may be fixed resistance.
It for example, can be by changing the quantity of fixed resistance or directly using the fixed resistance acquisition of corresponding resistance value
Corresponding simulation resistance value, to realize the controllable of simulation resistance value.
According to an embodiment of the present invention, the state switching driving unit 16 may include build-out resistor R1 and driving core
Piece U2.
Driving chip U2 for example can be MC1413 chip, with multiple interfaces (for example, interface shown in Fig. 21,
8,9 and 16).
According to an embodiment of the present invention, the status toggle unit 12 may include relay.
In Fig. 2, relay can be indicated with U2.RU2 is the coil resistance of relay.
Wherein, the relay can be multitool double-throw relay.
For example, the relay can be dpdt relay.Fig. 3 is that one kind provided in an embodiment of the present invention is shown
The schematic diagram of example static resistance analog circuit.As shown in figure 3, using a double-pole double throw relay in static resistance analog circuit
Resistance value simulation all the way may be implemented in device, every knife, which adapts to the simulation relatively small number of situation of number.
Alternatively, the relay can be single-pole double-throw relay.
For example, the quantity of the relay (for example, single-pole double-throw relay) can be multiple, and the Static Electro
The quantity for hindering analogue unit is identical as the quantity of the relay.Driving unit 16 can be switched by state to multiple relays
It is controlled.
Fig. 4 is the schematic diagram of another example static resistance analog circuit provided in an embodiment of the present invention.As shown in figure 4,
Two single-pole double-throw relays are used in static resistance analog circuit, resistance value all the way may be implemented in each single-pole double-throw relay
Simulation can switch driving unit 16 by state and control the two single-pole double-throw relays.
For example, one or more relays can be controlled by multiple interfaces of MC1413 chip.
It will be appreciated by those skilled in the art that in above-mentioned Fig. 3 and Fig. 4 about the quantity of relay and type description only
It is exemplary, is not intended to limit the present invention.
For two kinds of relay facilities that the example above illustrates, in addition to " external power supply route 1 " simulation resistance value by
" state switch driving circuit " influences, and the resistance value and design value of simulation are deviated outer, All other routes such as " external power supply route 2 "
Due to not being associated with " state switch driving circuit ", the analogue value is design value, can accomplish accurately to simulate.
According to an embodiment of the present invention, the state switching driving unit 16 may include build-out resistor and driving core
Piece.
Driving chip can be for example MC1413 chip, with multiple interfaces, by multiple interfaces can to one or
Multiple relays are controlled.
Fig. 5 is that a kind of static resistance analog circuit provided in an embodiment of the present invention is corresponding equivalent in electronic equipment static state
Resistive circuit diagram.
When equipment is in static state, i.e., when external power supply route is not powered, the electric path of power supply line can be equivalent to multichannel
Resistor coupled in parallel, as shown in Figure 5.In Fig. 5, R1 is build-out resistor, R2 is static simulation resistance, RU1-1、RU1-9、RU1-16Respectively
MC1413 chip the 1st, 9,16 interfaces (pin) to ground resistance, RU2For the coil resistance of relay.
In one example, it can measure to obtain: RU1-112.5K ohm of ≈, RU1-9For infinitely great, RU1-16For infinitely great, RU2
200 ohm~400 ohm of ≈.
It can thus be seen that RU2Resistance proportion is smaller, therefore can be ignored.In addition, guaranteeing the normal work of U1
In the case where work, R1 resistance value can be big as far as possible, to increase its input impedance, reduces the influence to static resistance, works as input voltage
When being 28 volts of direct current, the resistance value that R1 is selected can be 22K ohm.The resistance value of simulation can be calculated by the following formula.
It is different according to the design value of R2 resistance in circuit, corresponding simulation resistance value can be obtained, to realize simulation resistance value
It is controllable, as shown in table 1 below, table 1, which is shown, generates corresponding simulation resistance value with R2 design value.
Table 1 generates corresponding simulation resistance value with R2 design value
For example, it is illustrated below with certain vehicle test gimulator static resistance simulation process, for " state is cut
Change driving circuit " two-way control is carried out, and the case where build " state switching circuit " using two dpdt relays, it can be with
Realize four road resistance simulations, respectively " main equipment power just-negative ", " main equipment power just-ground ", " steering engine power just-
It is negative ", " steering engine power just-ground ", the simulation resistance value that the artifical resistance design value of use and actual measurement are realized is as shown in table 2 below, table
2 show the simulation resistance value of artifical resistance design value and actual measurement realization.
The simulation resistance value that 2 artifical resistance design value of table and actual measurement are realized
| Analog channel | Design value (ohm) | The simulation resistance value (ohm) of generation |
| Main equipment power just-it is negative | 330 | 324 |
| Main equipment power supply just-ground | 91K | 90.78K |
| Steering engine power just-it is negative | 330 | 329 |
| Steering engine power supply just-ground | 330 | 331 |
As can be seen from Table 2, static resistance analog circuit of the present invention realizes simulation resistance value well.
As above it describes for a kind of embodiment and/or the feature that shows can be in a manner of same or similar at one or more
It is used in a number of other embodiments, and/or combines or substitute the feature in other embodiments with the feature in other embodiments
It uses.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step, component or combinations thereof.
The device more than present invention can be by hardware realization, can also be by combination of hardware software realization.The present invention relates to this
The computer-readable program of sample can be such that the logical block realizes described above when the program is performed by logical block
Device or component parts, or the logical block is made to realize various method or steps described above.The invention further relates to for depositing
Store up the storage medium of procedure above, such as hard disk, disk, CD, DVD, flash memory.
The many features and advantage of these embodiments are clear according to the detailed description, therefore appended claims are intended to
Cover all these feature and advantage of these embodiments fallen into its true spirit and range.Further, since this field
Technical staff is readily apparent that many modifications and changes, therefore is not meant to for the embodiment of the present invention to be limited to illustrated and description essence
Really structurally and operationally, but all suitable modifications and the equivalent fallen within the scope of its can be covered.
Unspecified part of the present invention is known to the skilled person technology.
Claims (8)
1. a kind of static resistance analog circuit, which is characterized in that the analog circuit includes:
Static resistance analogue unit, the static resistance value for the analog electronic equipment when external power supply line is not powered；
Status toggle unit, for being connect with main equipment analogue unit from connecting to be switched to the static resistance analogue unit；
State switches driving unit, connect with the status toggle unit, for driving in external power supply route power-up
The status toggle unit executes handover operation.
2. analog circuit according to claim 1, which is characterized in that the static resistance analogue unit includes static simulation
Resistance.
3. analog circuit according to claim 2, which is characterized in that the static simulation resistance is variable resistance.
4. analog circuit according to claim 1, which is characterized in that the status toggle unit includes relay.
5. analog circuit according to claim 4, which is characterized in that the relay is multitool double-throw relay.
6. analog circuit according to claim 4, which is characterized in that the relay is single-pole double-throw relay.
7. analog circuit according to claim 6, which is characterized in that the quantity of the relay is multiple and described quiet
The quantity of state resistance simulation unit is identical as the quantity of the relay.
8. analog circuit described in any one of -7 according to claim 1, which is characterized in that the state switches driving unit packet
Include build-out resistor and driving chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810338429.XA CN110161892B (en) | 2018-04-16 | 2018-04-16 | Static resistance analog circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810338429.XA CN110161892B (en) | 2018-04-16 | 2018-04-16 | Static resistance analog circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110161892A true CN110161892A (en) | 2019-08-23 |
| CN110161892B CN110161892B (en) | 2020-12-25 |
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ID=67644735
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202548577U (en) * | 2011-11-08 | 2012-11-21 | 北京航空航天大学 | A fault injection breadboard capable of simulating a plurality of faults |
| CN202748666U (en) * | 2012-07-20 | 2013-02-20 | 北京机电工程研究所 | Comprehensive telesignaling simulator |
| CN203950201U (en) * | 2014-07-17 | 2014-11-19 | 意昂神州（北京）科技有限公司 | Automobile electrically-controlled test all-purpose electronic simulator |
| KR20150073238A (en) * | 2013-12-20 | 2015-07-01 | 교통안전공단 | Apparatus for Simulation of Vehicle ECU Diagnosis Device |
| CN205038324U (en) * | 2015-09-30 | 2016-02-17 | 国家电网公司 | The DC load's automatic loading device |
| CN205485465U (en) * | 2016-02-04 | 2016-08-17 | 北京波士顿动力电池有限公司 | Resistance analog circuit |
-
2018
- 2018-04-16 CN CN201810338429.XA patent/CN110161892B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202548577U (en) * | 2011-11-08 | 2012-11-21 | 北京航空航天大学 | A fault injection breadboard capable of simulating a plurality of faults |
| CN202748666U (en) * | 2012-07-20 | 2013-02-20 | 北京机电工程研究所 | Comprehensive telesignaling simulator |
| KR20150073238A (en) * | 2013-12-20 | 2015-07-01 | 교통안전공단 | Apparatus for Simulation of Vehicle ECU Diagnosis Device |
| CN203950201U (en) * | 2014-07-17 | 2014-11-19 | 意昂神州（北京）科技有限公司 | Automobile electrically-controlled test all-purpose electronic simulator |
| CN205038324U (en) * | 2015-09-30 | 2016-02-17 | 国家电网公司 | The DC load's automatic loading device |
| CN205485465U (en) * | 2016-02-04 | 2016-08-17 | 北京波士顿动力电池有限公司 | Resistance analog circuit |
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| Publication number | Publication date |
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| CN110161892B (en) | 2020-12-25 |
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