CN107727898A - A kind of stimulus output circuit - Google Patents
A kind of stimulus output circuit Download PDFInfo
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- CN107727898A CN107727898A CN201711131636.XA CN201711131636A CN107727898A CN 107727898 A CN107727898 A CN 107727898A CN 201711131636 A CN201711131636 A CN 201711131636A CN 107727898 A CN107727898 A CN 107727898A
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- 238000012360 testing method Methods 0.000 claims abstract description 71
- 230000001105 regulatory effect Effects 0.000 claims abstract description 58
- 230000001360 synchronised effect Effects 0.000 claims abstract description 37
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000002474 experimental method Methods 0.000 claims description 14
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- 230000002452 interceptive effect Effects 0.000 abstract description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
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Abstract
The present invention provides a kind of stimulus output circuit, including an at least test voltage generation circuit；Test voltage generation circuit includes synchronous voltage regulating module, single channel voltage regulating module, the second selecting switch j3, electric sampling open-phase selecting switch K1；The first end of synchronous voltage regulating module connects each bar input branch road of input power respectively；Second end of synchronous voltage regulating module connects the second selecting switch j3 one end；The second selecting switch j3 other end connects electric sampling open-phase selecting switch K1；Single channel voltage regulating module adjusts the voltage of each bar input branch road of input power respectively, one end of single channel voltage regulating module is connected between first end and the input power of synchronous voltage regulating module, and the other end of single channel voltage regulating module is connected between the second selecting switch j3 and electric sampling open-phase selecting switch K1.The present invention realizes each road input non-interfering independent Regulation Control of branch road, and then realizes the measurement to phase angle.
Description
Technical field
The present invention relates to electronic product calibration technology field, and in particular to a kind of stimulus output circuit.
Background technology
When being verified to electronic product the various voltage signals and current signal tested and used are generated, it is necessary to modulate.
Prior art directly ends the output of other each phases, single-phase voltage signal is entered when modulation generates single-phase voltage signal
Still realized during row pressure regulation using the mode of the unified regulation and control of three-phase.Carried out because the pressure regulation of each phase is unified so that each phase can not be measured
The phase angle of voltage signal, it is unfavorable for verifying.In the practical operation of electronic product verification, it usually can not rapidly and accurately identify and deposit
Impact test, electronic product directly are carried out to electronic product, it is necessary to introduce civil power in product and its defective locations of latent defect
Latent defect it is often short-circuit immediately under city's surge.Existing electronic product test device is general without introducing city
The function that electricity is verified.In addition, the current testing of electronic product needs a variety of different electric currents, test current is being introduced often
Interference signal can be often introduced simultaneously, cause verification to disturb.
The content of the invention
Therefore, the technical problem to be solved in the present invention is the list for the voltage for overcoming prior art can not realize for verification
To regulation and the defects of phase angle measurement, so as to provide a kind of stimulus output circuit.
One embodiment of the present of invention provides a kind of stimulus output circuit, including：An at least test voltage produces electricity
Road；
The test voltage generation circuit includes：Synchronous voltage regulating module, single channel voltage regulating module, the second selecting switch j3, electricity
Sampling open-phase selecting switch K1；
The synchronous voltage regulating module adjusts the voltage of each bar input branch road of the input power, the synchronous pressure regulation mould simultaneously
The first end of block connects each bar input branch road of the input power respectively；Described in the second end connection of the synchronous voltage regulating module
Second selecting switch j3 one end；The other end of the second selecting switch j3 connects the electric sampling open-phase selecting switch K1；
The single channel voltage regulating module adjusts the voltage of each bar input branch road of the input power, the single channel pressure regulation mould respectively
One end of block is connected between first end and the input power of the synchronous voltage regulating module, the single channel voltage regulating module it is another
One end is connected between the second selecting switch j3 and electric sampling open-phase selecting switch K1.
Further, stimulus output circuit also includes：Isolating transformer BK1 and first choice switch j2, wherein, institute
The one end for stating isolating transformer BK1 connects the input power, and the other end is connected to described by first choice switch j2
Synchronous voltage regulating module.
Further, stimulus output circuit also includes：Output switch J6K, the output switch J6K one end connection
In the electric sampling open-phase selecting switch K1.
Further, the synchronous voltage regulating module in the test voltage generation circuit includes synchronous pressure regulator BK2, the list
Road voltage regulating module includes single channel pressure regulator BK3 or BK4 or BK5；
One end of the synchronous pressure regulator BK2 coils connects each bar input branch road of the input power respectively, described
The other end of synchronous pressure regulator BK2 coils connects zero line respectively, and the swing arm in the synchronous pressure regulator BK2 is connected to the second choosing
Select switch j3；
One end of single channel pressure regulator BK3 or BK4 or the BK5 coil connects wherein one input branch of the input power
Road, single channel pressure regulator BK3 or BK4 or the BK5 coil the other end connection zero line, the single channel pressure regulator BK3 or BK4 or
Swing arm is connected to the second selecting switch j3 in BK5.
Further, stimulus output circuit also includes：Test current output circuit, the test current output circuit
Including current regulating module, at least test current generation circuit and output switch J6K all the way；The test current generation circuit bag
Include the multiple 1~CTn of Current Transmit, the second current selected switch K4 and the 3rd current selected switch K5 of series connection；Wherein, institute
The one end for stating current regulating module connects wherein one input branch road of the input power, the other end of the current regulating module
Connect multiple 1~CTn of Current Transmit of series connection；The multiple 1~CTn of a Current Transmit equal connecting to neutral of output end
Line, the multiple 1~CTn of Current Transmit another output end is through the second current selected switch K4 connection output switchs
J6K；One end of the 3rd current selected switch K5 is connected to multiple 1~CTn of Current Transmit and the second electric current selections and opened
Between closing K4, the other end connection zero line of the 3rd current selected switch K5.
Further, the current regulating module includes：Electric current pressure regulator BK6 and current transformer B K7, wherein, it is described
One end of electric current pressure regulator BK6 coil connects wherein one input branch road of the input power, the electric current pressure regulator BK6's
The other end connection zero line of coil, the swing arm of the electric current pressure regulator BK6 are connected to current transformer B K7 primary side, the electricity
Convertor transformer BK7 secondary is connected to multiple 1~CTn of Current Transmit of series connection.
Further, stimulus output circuit also includes being used for the list for controlling single channel pressure regulator BK3~BK5 outputs
Phase voltage regulation and control motor M1~M3.
Further, the electric current that stimulus output circuit also includes being used to control the electric current pressure regulator BK6 outputs is adjusted
Control motor M4.
Further, the drive circuit of the single-phase voltage regulation and control motor M1~M3 or current regulation motor M4 includes：
Motor transformer BK8, bridge rectifier module, fuse FU7 and filter capacitor C1；
One end of the primary side of the motor transformer BK8 is connected to input power wherein one and inputs branch road, and the motor becomes
The other end connection zero line of depressor BK8 primary side, the both ends connection bridge-type rectification module of the secondary of the motor transformer BK8
Two inputs；
One end of the fuse FU7 is connected to the secondary of the motor transformer BK8, and the fuse FU7's is another
End ground connection；
The filter capacitor C1 is connected between two output ends of bridge rectifier module.
Further, stimulus output circuit also includes：DC experiment current output circuit, the DC experiment electric current
Output circuit includes direct current output transformer BK9, direct current output selecting switch K7, bridge rectifier module, fuse FU9 and filtering
Electric capacity C2；
Wherein, one end of the primary side of the direct current output transformer BK9 is connected to input power wherein one and inputs branch road, institute
State the other end connection zero line of direct current output transformer BK9 primary side, one end warp of the secondary of the direct current output transformer BK9
Direct current output selecting switch K7 is connected to an input of bridge rectifier module, the secondary of the direct current output transformer BK9
The other end connection bridge-type rectification module another input；
An output end for connecing bridge rectifier module is connected to fuse FU9；
The filter capacitor C2 is connected between two output ends of bridge rectifier module.
Technical solution of the present invention, have the following advantages that：
1. stimulus output circuit provided by the invention, realized using the second selecting switch j3 and connect synchronous voltage regulating module
With synchronous pressure regulation, or realized using the second selecting switch j3 and connect single channel voltage regulating module with single channel pressure regulation；In single channel pressure regulation mould
Under formula, coordinate electric sampling open-phase selecting switch K1 to realize the output to certain voltage all the way.The present invention changes prior art in list
The voltage regulating mode of other each road outputs is simply cut off during the pressure regulation of road, realizes each road input non-interfering independent pressure regulation control of branch road
System；Branch road is inputted when input power has two or more, such as three phase mains, passes through the only of a plurality of input branch road to input voltage
Vertical regulation and control, can realize the measurement to phase angle, to export the single-path testing voltage source of specific phase angle and voltage, meet complex
Requirement of the Electronic Testing to test voltage.
2. stimulus output circuit provided by the invention, utilize first choice switch j2 control isolating transformers BK1's
Access or short circuit, realize safe voltage test or the direct shock-testing of civil power；On the one hand, can Protection personal security, keep away
Exempt from operational error and cause electric shock；On the other hand, realize and directly tested using civil power, realize and rapidly and accurately identify potential lack
Sunken product and its defective locations.
3. stimulus output circuit provided by the invention, the electric current using the second current selected switch K4 to multiple series connection
Transformer CT1~CTn output is selected；To avoid multiple 1~CTn of Current Transmit of concatenation from causing output current
Interference, by the output direct short-circuit on not gated current transformer and zero line is introduced using the 3rd current selected switch K5；One
Aspect, while multiple electric currents of connecting can not only meet requirements of a variety of tests to test current than different current transformers,
And circuit structure is simple；On the other hand, avoid introducing from bothering signal, improve test accuracy.
4. stimulus output circuit provided by the invention, there is DC experiment electric current output function, further enrich
The species of stimulus, to meet the needs of a variety of tests.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of circuit theory diagrams of a specific example of stimulus output circuit in the embodiment of the present invention 1；
Fig. 2 is a kind of circuit theory diagrams of another specific example of stimulus output circuit in the embodiment of the present invention 1；
Fig. 3 is a kind of circuit theory diagrams of another specific example of stimulus output circuit in the embodiment of the present invention 1；
Fig. 4 is one of a kind of input power incoming end of stimulus output circuit in the embodiment of the present invention 1 and specifically shown
The circuit theory diagrams of example；
Fig. 5 is an a kind of specific example of the voltage output end of stimulus output circuit in the embodiment of the present invention 1
Circuit theory diagrams；
Fig. 6 is a kind of circuit theory diagrams of a specific example of stimulus output circuit in the embodiment of the present invention 2；
Fig. 7 be in the embodiment of the present invention 2 in a kind of stimulus output circuit one of test current output circuit it is specific
The circuit theory diagrams of example；
Fig. 8 is a kind of another tool of test current output circuit in stimulus output circuit in the embodiment of the present invention 2
The circuit theory diagrams of body example；
Fig. 9 is an a kind of specific example of the motor-drive circuit of stimulus output circuit in the embodiment of the present invention 3
Circuit theory diagrams；
Figure 10 is in the embodiment of the present invention 4 one of DC experiment current output circuit in a kind of stimulus output circuit
The circuit theory diagrams of specific example；
It is used to indicate that motor operates feelings in test product in a kind of stimulus output circuit in Figure 11 embodiment of the present invention 5
The circuit theory diagrams of one specific example of the drive circuit of the indicator lamp of condition.
Reference：
11-synchronous voltage regulating module, 12-single channel voltage regulating module, 21-current regulating module, j1-master switch, j2-the
One selecting switch, the selecting switch of j3-second, K1-electric sampling open-phase selecting switch, K2-electric current master switch, the electric currents of K3-first
Selecting switch, the current selected switches of K4-second, the current selected switches of K5-the 3rd, K6-current phase selecting switch, K7-
Direct current output selecting switch, DZ-incoming power switch, J6K-output switch, RT1-thunder-arresting module, RT2-thunder-arresting module,
RT3-thunder-arresting module, FU1-fuse, FU2-fuse, FU3-fuse, FU4-fuse, FU5-fuse,
FU6-fuse, FU7-fuse, FU8-fuse, FU9-fuse, BK1-isolating transformer, BK2-synchronous pressure regulation
Device, BK3-single channel pressure regulator, BK4-single channel pressure regulator, BK5-single channel pressure regulator, BK6-electric current pressure regulator, BK7-electric current
Transformer, BK8-motor transformer, BK9-direct current output transformer, BK10-transformer, CT1-current transformer, CT2-
Current transformer, CT3-current transformer, CTn-current transformer, M1-single-phase voltage regulation and control motor, M2-single-phase voltage
Regulation and control motor, M3-single-phase voltage regulation and control motor, M4-current regulation motor, C1-filter capacitor, C2-filter capacitor, C3-
Filter capacitor.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to which explanation, term " first ", " second ", " the 3rd " are only used for describing purpose, and can not manage
Solve to indicate or implying relative importance.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
Embodiment 1
The embodiment of the present invention 1 provides a kind of stimulus output circuit, as shown in figure 1, it includes：Input power is connect respectively
A plurality of input branch road test voltage generation circuit.When input power is three phase mains, the experiment that embodiment 1 is provided is believed
Number output circuit includes the three line structure identical test voltage generation circuits for connecing mains supply A phases, B phases and C phases respectively.Experiment
Voltage generation circuit includes：Synchronous voltage regulating module 11, single channel voltage regulating module 12, the second selecting switch j3, the selection of electric sampling open-phase are opened
Close K1.Synchronous voltage regulating module 11 is used for the voltage for adjusting each bar input branch road of input power simultaneously, and its first end connects defeated respectively
Enter each bar input branch road of power supply, its second end connects the second selecting switch j3 one end；The second selecting switch j3 other end
Connect electric sampling open-phase selecting switch K1；Single channel voltage regulating module 12 is used for the electricity for independently adjusting each bar input branch road of input power
Pressure, its one end are connected between first end and the input power of synchronous voltage regulating module 11, and its other end is connected to the second selection and opened
Between the j3 and electric sampling open-phase selecting switch K1 of pass.Second selecting switch j3 is used to select to start three-phase synchronous pressure regulation pattern, or single
Road pressure regulation pattern.Synchronous voltage regulating module 11 is connected by the second selecting switch j3 and cuts off single channel voltage regulating module 12, can be carried out
The synchronous pressure regulation of a plurality of input branch road；Single channel voltage regulating module 12 is connected by the second selecting switch j3 and cuts off synchronous voltage regulating module
11, independent single channel pressure regulation can be carried out.In actual applications, the input power can be mains supply, input power it is more
Bar input branch road is the three-phase circuit of mains supply, and electric sampling open-phase selecting switch K1 can be rotary switch, and its truth table is shown in Table
1。
Table 1
The stimulus output circuit that the embodiment of the present invention 1 provides, realized using the second selecting switch j3 and connect same step
Die block 11 realizes connection single channel voltage regulating module 12 to carry out single channel to synchronize pressure regulation, or using the second selecting switch j3
Pressure regulation, i.e. single-phase voltage regulating；Under single channel pressure regulation pattern, coordinate electric sampling open-phase selecting switch K1 to realize to the defeated of certain voltage all the way
Go out.The present invention changes the voltage regulating mode that prior art simply cuts off the output of other two-phases in single channel pressure regulation, realizes each road
Input the non-interfering independent Regulation Control of branch road；It is three-phase input power supply for input power in a concrete application example
When, by regulating and controlling to the independence of three-phase voltage, the measurement to phase angle can be realized, to export the single-phase survey of specific phase angle and voltage
Voltage source is tried, meets requirement of the complex Electronic Testing to test voltage.
In actual applications, in order to testing crew carry out security protection, it is necessary to stimulus output circuit input
Power inleting terminal installs isolating transformer BK1 additional, as shown in Figure 2.The electrical signal voltage that input power exports through isolating transformer BK1
It is constant, but power reduce so that the electric signal will not do harm to huamn body, avoid electric shock accidents.But in some tests,
Low power test voltage is difficult to find trouble point, it is necessary to which introducing powerful test voltage can complete to test；Therefore, Fig. 2
Shown stimulus output circuit has installed first choice switch j2 additional after isolating transformer BK1, to access first choice
Switch j2 or it is short-circuit.In addition, in order to further improve the security of test, the stimulus output circuit shown in Fig. 2 is also
Output switch J6K is additionally arranged, output switch J6K one end is connected to electric sampling open-phase selecting switch K1 to control whether that output is used for
Test or the voltage signal of experiment.
In an embodiment, in the stimulus output circuit of the embodiment of the present invention 1, synchronous voltage regulating module 11 can
To be synchronous pressure regulator BK2, single channel voltage regulating module 12 can be single channel pressure regulator BK3 or BK4 or BK5, see Fig. 3.Synchronous pressure regulation
One end of device BK2 coils connects each bar input branch road of input power respectively, and the other end of its coil connects zero line respectively, its
Swing arm is connected to the second selecting switch j3.One end of single channel pressure regulator BK3 or BK4 or BK5 coil connects its of input power
In an input branch road, the other end connection zero line of its coil, its swing arm is connected to the second selecting switch j3.Carried out using pressure regulator
Voltage-regulation, circuit structure is simple and pressure regulation rapid and convenient, is particularly suitable for engineer applied.
In another embodiment, in order to carry out input guarantor to the stimulus output circuit of the embodiment of the present invention 1
Shield, fuse FU1~FU3 is additionally arranged in the end of incoming cables of input power, incoming power switchs DZ, thunder-arresting module RT1~RT3 and total
J1 is switched, sees Fig. 4.Master switch j1, first choice switch j2, the second selecting switch j3 and output switch J6K can be relays
Device.By taking master switch j1 as an example, the input of input power wherein one is connected to after coil c1 and its controlling switch the k1 series connection of relay
Between branch road and zero line.In the case of incoming power switch DZ closures, electricity and adhesive on coil c1 after closure controlling switch k1
The normally opened contact j1 being controlled by it so that electricity and worked on whole stimulus output circuit.In addition, in order to avoid testing or trying
Test product causes damage to stimulus output circuit during testing, in the stimulus output circuit of the embodiment of the present invention 1
Output end be additionally arranged export insurance silk FU4~FU6, see Fig. 5.In order to intuitively be shown to the output voltage on each road, in electricity
The A.C. voltmeter corresponding with each road output voltage is set up after sampling open-phase selecting switch K1, to measure and show each road respectively
Output voltage.In order to intuitively display whether the output voltage on each road be present, set up after export insurance silk FU4~FU6 with
Each road exports corresponding indicator lamp to show whether the output voltage of each phase is connected respectively.
Embodiment 2
The embodiment of the present invention 2 provides a kind of stimulus output circuit, includes whole components of embodiment 1, and increases
If test current output circuit, as shown in Figure 6.Test current output circuit includes current regulating module 21, all the way experiment electricity
Generation circuit and output switch J6K are flowed, as shown in Figure 7.Test current generation circuit includes multiple Current Transmits 1 of series connection
~CTn, the second current selected switch K4 and the 3rd current selected switch K5.Wherein, one end connection of current regulating module 21 is defeated
Enter wherein one input branch road of power supply, multiple 1~CTn of Current Transmit of its other end connection series connection；Multiple electricity of series connection
Current transformer CT1~CTn equal connecting to neutral the line of an output end, their another output end are connected to the selection of the second electric current
Switch K4 and the 3rd current selected switch K5 one end；The second current selected switch K4 other end is connected to output switch J6K；
3rd current selected switch K5 other end connection zero line.
Second current selected switch K4 and the 3rd current selected switch K5 are used cooperatively, can be from the multiple of series connection
One is selected in 1~CTn of Current Transmit with output test electric current, and by the output of other not gated current transformers
Short-circuit processing is carried out, to avoid introducing interference signal in final test current output.With four Current Transmits 1 of connecting
Exemplified by~CT4, when needing to gate Current Transmit 1 therein, the contact K4-1 in the second current selected switch K4 is controlled
Closure, remaining contact in the second current selected switch K4 is disconnected, with output current transformer CT1 current signal；Control simultaneously
3rd current selected switch K5 contact K5-1 disconnects, and closes remaining contact in the 3rd current selected switch K5, will remove electric current
The output of 2~CT4 of other Current Transmits beyond transformer CT1 introduces zero line, avoids multiple current transformers of concatenation
Mutually bother.
In an embodiment, in order to which the delay to test product measures, the zero of test current output end
Level timer js is set on line.
In actual applications, the second current selected switch K4 and the 3rd current selected switch K5 can be rotary switch, its
Truth table is shown in Table 2.
Table 2
The stimulus output circuit that the embodiment of the present invention 2 provides, using the second current selected switch K4 to multiple series connection
1~CTn of Current Transmit output selected；To avoid multiple 1~CTn of Current Transmit of concatenation to output electricity
Stream interferes, using the 3rd current selected switch K5 by the output direct short-circuit on not gated current transformer and introduce zero
Line；On the one hand, while multiple electric currents of connecting are than different current transformers, and a variety of tests can not only be met to test current
It is required that and circuit structure it is simple；On the other hand, avoid introducing from bothering signal, improve test accuracy.
In an embodiment, current regulating module 21 includes：Electric current pressure regulator BK6 and current transformer B K7, such as
Shown in Fig. 8.Wherein one input branch road of one end connection input power of electric current pressure regulator BK6 coil, the other end of its coil
Zero line is connected, its swing arm is connected to current transformer B K7 primary side, and current transformer B K7 secondary is connected to the multiple of series connection
1~CTn of Current Transmit.Set between current transformer B K7 secondary and the multiple 1~CTn of Current Transmit to connect
There is electric current master switch K2.Multiple 1~CTn of Current Transmit open circuits of series connection simultaneously can will using electric current master switch K2
Current transformer B K7 secondary short circuit.At this point it is possible to utilize the current transformer being connected on current transformer B K7 secondary
CT measurement current transformer Bs K7 secondary output.Regulation electric current pressure regulator BK6 swing arm simultaneously observes the finger of Current Transmit
Show, when current transformer B K7 output meets the requirements, multiple current transformers of series connection are connected by electric current master switch K2
CT1~CTn is with output test electric current.Can be had by multiple 1~CTn of Current Transmit test current generation circuits formed more
Road, include three road test galvanoscope generation circuits as shown in Figure 8.The selection of the first electric current can be set up after electric current master switch K2 to open
K3 is closed, which test current generation circuit gated to control selections.After output switch J6K, electric current phase can be set up
Position selecting switch K6, to coordinate the three-phase test voltage in embodiment 1 to be tested.Current phase selecting switch K6 can be choosing
Switch is selected, its truth table is shown in Table 3.In order to avoid the stimulus output circuit that test product is provided the embodiment of the present invention 2 is made
Into infringement, export insurance silk FU10~FU12 is set up after current phase selecting switch K6.
Table 3
Embodiment 3
The present invention applies example 3 and provides a kind of stimulus output circuit, including whole components of embodiment 1 and embodiment 2,
And it is additionally arranged and regulates and controls motor M1~M3 for the single-phase voltage for controlling single channel pressure regulator BK3~BK5 to export, and for controlling
The current regulation motor M4 of electric current pressure regulator BK6 outputs.In order to drive single-phase voltage regulation and control motor M1~M3 and current regulation electricity
Machine M4 forward or reverse, the stimulus output circuit that the present invention applies example 3 are additionally arranged drive circuit.As shown in figure 9, the drive of motor
Dynamic circuit includes：Motor transformer BK8, bridge rectifier module, fuse FU7 and filter capacitor C1.Motor transformer BK8 original
The one end on side is connected to input power wherein one and inputs branch road, the other end connection zero line of its primary side, the both ends connection of its secondary
Two inputs of bridge rectifier module；Fuse FU7 one end is connected to motor transformer BK8 secondary, fuse FU7's
The other end is grounded；Filter capacitor C1 is connected between two output ends of bridge rectifier module.
Control the drive shown in single-phase voltage regulation and control motor M1~M3 and current regulation motor M4 power input hookup 9
The positive output end of dynamic circuit, can control motor to rotate forward；The negative sense output end of drive circuit is contacted, can control motor reversal, with
This realizes the output regulation to single channel pressure regulator BK3~BK5 and electric current pressure regulator BK6.
Embodiment 4
The present invention applies example 4 and provides a kind of stimulus output circuit, includes whole components of embodiment 1~3, and increases
If DC experiment current output circuit, as described in Figure 10.DC experiment current output circuit includes direct current output transformer
BK9, direct current output selecting switch K6, bridge rectifier module, fuse FU9 and filter capacitor C2.Wherein, direct current output transformer
One end of BK9 primary side be connected to input power wherein one input branch road, its primary side the other end connection zero line, the one of its secondary
End is connected to an input of bridge rectifier module through direct current output selecting switch K7, and the other end connection bridge-type of its secondary is whole
Another input of flow module；An output end for connecing bridge rectifier module is connected to fuse FU9, and the output end is direct current
Test current output end；Filter capacitor C2 is connected between two output ends of bridge rectifier module.
The stimulus output circuit that the embodiment of the present invention 4 provides, has DC experiment electric current output function, further rich
The rich species of stimulus, to meet the needs of a variety of tests.
Embodiment 5
The present invention applies example 5 and provides a kind of stimulus output circuit, includes whole components of embodiment 1~4, and increases
If the indicator lamp for indicating motor working order in test product.The drive circuit of above-mentioned indicator lamp is as shown in figure 11, including
Transformer BK10, bridge rectifier module, fuse FU8 and filter capacitor C3.Wherein, one end connection of transformer BK10 primary side
Branch road is inputted in input power wherein one, the other end connection zero line of its primary side, it is whole that the both ends of its secondary are connected to bridge-type
Two inputs of flow module, the positive output end of bridge rectifier module is through fuse FU8 outputs+12V DC, bridge rectifier mould
Filter capacitor C3 is connected between the positive output end and negative sense output end of block.During practical application, can by above-mentioned indicator lamp and
Controlled switch be connected to drive circuit+between 12V DC output end and negative sense output end, and controlled switch acceptance test produce
The manipulation of motor in product.For example, for indicating that the indicator lamp that motor rotates forward in test product can be common with a controlled switch
Be connected on drive circuit+between 12V DC output end and negative sense output end, motor is being just only in test product for the controlled switch
Can adhesive when turning；After test voltage or test current is accessed, the motor in test product can rotate forward, then the controlled switch
Closure causes for indicating that the indicator lamp that motor rotates forward in test product is lighted.
The stimulus output circuit that the embodiment of the present invention 4 provides, operating feelings that can be when product verifies to its motor
Condition is intuitively shown, facilitates testing staff to identify.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
- A kind of 1. stimulus output circuit, it is characterised in that including：An at least test voltage generation circuit；The test voltage generation circuit includes：Synchronous voltage regulating module (11), single channel voltage regulating module (12), the second selecting switch (j3), electric sampling open-phase selecting switch (K1)；The input connection input power of the test voltage generation circuit；The synchronous voltage regulating module (11) while the voltage for adjusting each bar input branch road of the input power, the synchronous pressure regulation mould The first end of block (11) connects each bar input branch road of the input power respectively；Second end of the synchronous voltage regulating module (11) Connect one end of second selecting switch (j3)；The other end connection electric sampling open-phase choosing of second selecting switch (j3) Select switch (K1)；The single channel voltage regulating module (12) adjusts the voltage of each bar input branch road of the input power, the single channel pressure regulation mould respectively One end of block (12) is connected between first end and the input power of the synchronous voltage regulating module (11), the single channel pressure regulation The other end of module (12) is connected between second selecting switch (j3) and electric sampling open-phase selecting switch (K1).
- 2. stimulus output circuit according to claim 1, it is characterised in that also include：Isolating transformer (BK1) and First choice switchs (j2), wherein,One end of the isolating transformer (BK1) connects the input power, and the other end is switched (j2) by the first choice It is connected to the synchronous voltage regulating module (11).
- 3. stimulus output circuit according to claim 1, it is characterised in that also include：Output switch (J6K), institute The one end for stating output switch (J6K) is connected to the electric sampling open-phase selecting switch (K1).
- 4. stimulus output circuit according to claim 1, it is characterised in that：In the test voltage generation circuit Synchronous voltage regulating module (11) includes synchronous pressure regulator (BK2), and the single channel voltage regulating module (12) includes single channel pressure regulator；One end of synchronous pressure regulator (BK2) coil connects each bar input branch road of the input power respectively, described same The other end of step depressor (BK2) coil connects zero line respectively, and the swing arm in the synchronous pressure regulator (BK2) is connected to second Selecting switch (j3)；One end of the single channel pressure regulator coil connects an input branch road of the input power, in the single channel pressure regulator The other end of coil connects zero line, and swing arm is connected to the second selecting switch (j3) in the single channel pressure regulator.
- 5. stimulus output circuit according to claim 1, it is characterised in that also include：Test current output circuit, the test current output circuit includes current regulating module (21), at least experiment is electric all the way Generation circuit and output switch (J6K) are flowed,The test current generation circuit includes multiple current transformers (CT1~CTn) of series connection, the second current selected switch (K4) and the 3rd current selected switch (K5), wherein,One end of the current regulating module (21) connects wherein one input branch road of the input power, the current regulation mould Multiple current transformers (CT1~CTn) of the other end connection series connection of block (21)；The multiple current transformer (CT1~CTn) The equal connecting to neutral line of an output end, another output end of the multiple current transformer (CT1~CTn) selects through the second electric current Switch (K4) connection output switch (J6K)；One end of 3rd current selected switch (K5) is connected to multiple current transformers Between (CT1~CTn) and the second current selected switch (K4), the other end connection zero of the 3rd current selected switch (K5) Line.
- 6. stimulus output circuit according to claim 5, it is characterised in that current regulating module (21) bag Include：Electric current pressure regulator BK6 and current transformer B K7, wherein,One end of the coil of the electric current pressure regulator BK6 connects wherein one input branch road of the input power, and the electric current is adjusted The other end connection zero line of depressor BK6 coil, the swing arm of the electric current pressure regulator BK6 are connected to current transformer B K7 original Side, the secondary of the current transformer B K7 are connected to multiple current transformers (CT1~CTn) of series connection.
- 7. stimulus output circuit according to claim 4, it is characterised in that also include being used to control the single channel to adjust The single-phase voltage regulation and control motor of depressor output.
- 8. stimulus output circuit according to claim 6, it is characterised in that also include being used to control the electric current to adjust The current regulation motor (M4) of depressor BK6 outputs.
- 9. the stimulus output circuit according to claim 7 or 8, it is characterised in that the single-phase voltage regulates and controls motor Or the drive circuit of current regulation motor (M4) includes：Motor transformer (BK8), bridge rectifier module, fuse (FU7) and filter capacitor (C1)；One end of the primary side of the motor transformer (BK8) is connected to wherein one input branch road of input power, and the motor becomes The other end connection zero line of the primary side of depressor (BK8), the both ends connection bridge rectifier mould of the secondary of the motor transformer (BK8) Two inputs of block；One end of the fuse (FU7) is connected to the secondary of the motor transformer (BK8), the fuse (FU7) it is another One end is grounded；The filter capacitor (C1) is connected between two output ends of bridge rectifier module.
- 10. stimulus output circuit according to claim 1, it is characterised in that also include：DC experiment electric current exports Circuit, the DC experiment current output circuit include direct current output transformer (BK9), direct current output selecting switch (K7), bridge Formula rectification module, fuse (FU9) and filter capacitor (C2), wherein,One end of the primary side of the direct current output transformer (BK9) is connected to wherein one input branch road of input power, described straight The other end connection zero line of the primary side of stream output transformer (BK9), one end warp of the secondary of the direct current output transformer (BK9) Direct current output selecting switch (K7) is connected to an input of bridge rectifier module, the direct current output transformer (BK9) Another input of the other end connection bridge-type rectification module of secondary；An output end for connecing bridge rectifier module is connected to fuse (FU9)；The filter capacitor (C2) is connected between two output ends of bridge rectifier module.
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