CN207882317U - A kind of stimulus output circuit - Google Patents
A kind of stimulus output circuit Download PDFInfo
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- CN207882317U CN207882317U CN201721525937.6U CN201721525937U CN207882317U CN 207882317 U CN207882317 U CN 207882317U CN 201721525937 U CN201721525937 U CN 201721525937U CN 207882317 U CN207882317 U CN 207882317U
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Abstract
The utility model 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 is separately connected each item input branch of input power；The second end of synchronous voltage regulating module connects one end of the second selecting switch j3；The electric sampling open-phase selecting switch K1 of other end connection of second selecting switch j3；Single channel voltage regulating module adjusts the voltage of each item input branch of input power respectively, one end of single channel voltage regulating module is connected between the first end and 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 utility model realizes each road input non-interfering independent Regulation Control of branch, and then realizes the measurement to phase angle.
Description
Technical field
The utility model is related to electronic product calibration technology fields, and in particular to a kind of stimulus output circuit.
Background technology
When being verified to electronic product, modulation is needed to generate the various voltage signals and current signal tested and used.
The prior art directly ends the output of other each phases when modulation generates single-phase voltage signal, to single-phase voltage signal into
The mode of the unified regulation and control of three-phase is still used to realize when row pressure regulation.It is carried out since the pressure regulation of each phase is unified so that be unable to measure each phase
The phase angle of voltage signal is unfavorable for verifying.In the practical operation of electronic product verification, it usually can not rapidly and accurately identify and deposit
In the product and its defective locations of latent defect, need to introduce alternating current directly to electronic product progress impact test, electronic product
Latent defect it is often short-circuit immediately under city's surge.Existing electronic product test device is general not have 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, and verification is caused to interfere.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome the prior art to cannot achieve the voltage for verification
It is unidirectional adjust and the defect of phase angle measurement, to provide a kind of stimulus output circuit.
One embodiment of the utility model provides a kind of stimulus output circuit, including：An at least test voltage produces
Raw circuit；
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 item input branch of the input power, the synchronous pressure regulation mould simultaneously
The first end of block is separately connected each item input branch of the input power；Described in the second end connection of the synchronous voltage regulating module
One end of second selecting switch j3；The other end connection electric sampling open-phase selecting switch K1 of the second selecting switch j3；
The single channel voltage regulating module adjusts the voltage of each item input branch of the input power, the single channel pressure regulation mould respectively
One end of block is connected between the 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 further 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 the first choice switch j2
Synchronous voltage regulating module.
Further, stimulus output circuit further includes：Export switch J6K, one end connection of the output switch J6K
In the electric sampling open-phase selecting switch K1.
Further, the synchronization 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 is separately connected each item input branch of the input power, described
The other end of synchronous pressure regulator BK2 coils is separately connected zero curve, 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, the other end of single channel pressure regulator BK3 or BK4 or the BK5 coil connect zero curve, 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 further 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 packet
Include concatenated multiple 1~CTn of Current Transmit, the second current selected switch K4 and third current selected switch K5；Wherein, institute
The one end for stating current regulating module connects wherein one input branch of the input power, the other end of the current regulating module
Connect concatenated multiple 1~CTn of Current Transmit；An output end of the multiple 1~CTn of Current Transmit connects zero
Line, another output end of the multiple 1~CTn of Current Transmit is exported through the second current selected switch K4 connections to be switched
J6K；One end of the third current selected switch K5 is connected to multiple 1~CTn of Current Transmit and the selection of the second electric current is opened
Between closing K4, the other end of the third current selected switch K5 connects zero curve.
Further, the current regulating module includes：Electric current pressure regulator BK6 and current transformer B K7, wherein described
One end of the coil of electric current pressure regulator BK6 connects wherein one input branch of the input power, the electric current pressure regulator BK6's
The other end of coil connects zero curve, and the swing arm of the electric current pressure regulator BK6 is connected to the primary side of current transformer B K7, the electricity
The secondary side of convertor transformer BK7 is connected to concatenated multiple 1~CTn of Current Transmit.
Further, stimulus output circuit further includes the list for controlling single channel pressure regulator BK3~BK5 outputs
Phase voltage regulates and controls motor M1~M3.
Further, stimulus output circuit further includes the electric current tune for controlling the electric current pressure regulator BK6 outputs
Control motor M4.
Further, the driving 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, and the motor becomes
The other end of the primary side of depressor BK8 connects zero curve, the both ends connection bridge-type rectification module on the secondary side of the motor transformer BK8
Two input terminals；
One end of the fuse FU7 is connected to the secondary side 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 further 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
Capacitance 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, institute
State the other end connection zero curve of the primary side of direct current output transformer BK9, one end warp on the secondary side of the direct current output transformer BK9
Direct current output selecting switch K7 is connected to an input terminal of bridge rectifier module, the secondary side of the direct current output transformer BK9
The other end connection bridge-type rectification module another input terminal；
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 solutions of the utility model have the following advantages that：
1. stimulus output circuit provided by the utility model is realized using the second selecting switch j3 and connects synchronous pressure regulation
Module is to synchronize pressure regulation, or is realized using the second selecting switch j3 and connect single channel voltage regulating module with single channel pressure regulation；In single channel tune
Under die pressing type, cooperation electricity sampling open-phase selecting switch K1 is to realize the output to certain voltage all the way.The utility model changes existing
Technology simply cuts off the voltage regulating mode of other each road outputs in single channel pressure regulation, and it is non-interfering solely to realize each road input branch
Vertical Regulation Control；When input power has more than two input branches, such as three phase mains passes through a plurality of input to input voltage
The independent regulation and control of branch, can realize the measurement to phase angle, to export the single-path testing voltage source of specific phase angle and voltage, meet
Requirement of the more complicated Electronic Testing to test voltage.
2. stimulus output circuit provided by the utility model controls isolating transformer using first choice switch j2
Safe voltage test or the direct shock-testing of alternating current are realized in the access or short circuit of BK1；It on the one hand, being capable of Protection personnel peace
Entirely, operation error is avoided to cause to get an electric shock；On the other hand, it realizes and is directly tested using alternating current, realize and rapidly and accurately identify
The product and its defective locations of latent defect.
3. stimulus output circuit provided by the utility model, using the second current selected switch K4 to multiple concatenated
The output of 1~CTn of Current Transmit is selected；To avoid multiple 1~CTn of Current Transmit of concatenation to output current
It interferes, by the output direct short-circuit on not gated current transformer and zero is introduced using third current selected switch K5
Line；On the one hand, while multiple electric currents of connecting are than different current transformers, can not only meet a variety of tests to test current
It is required that and circuit structure it is simple；On the other hand, it avoids introducing and bothers signal, improve test accuracy.
4. stimulus output circuit provided by the utility model has DC experiment electric current output function, further rich
The rich type of stimulus, to meet the needs of a variety of tests.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of circuit theory of a specific example of stimulus output circuit in the utility model embodiment 1
Figure；
Fig. 2 is that a kind of circuit of another specific example of stimulus output circuit is former in the utility model embodiment 1
Reason figure；
Fig. 3 is that a kind of circuit of another specific example of stimulus output circuit is former in the utility model embodiment 1
Reason figure；
Fig. 4 is an a kind of tool of the input power incoming end of stimulus output circuit in the utility model embodiment 1
The exemplary circuit diagram of body；
Fig. 5 is that one of a kind of voltage output end of stimulus output circuit in the utility model embodiment 1 specifically shows
The circuit diagram of example；
Fig. 6 is a kind of circuit theory of a specific example of stimulus output circuit in the utility model embodiment 2
Figure；
Fig. 7 is in the utility model embodiment 2 one of test current output circuit in a kind of stimulus output circuit
The circuit diagram of specific example；
Fig. 8 be in the utility model embodiment 2 in a kind of stimulus output circuit test current output circuit it is another
The circuit diagram of a specific example；
Fig. 9 is that one of a kind of motor-drive circuit of stimulus output circuit in the utility model embodiment 3 is specific
Exemplary circuit diagram；
Figure 10 is DC experiment current output circuit in a kind of stimulus output circuit in the utility model embodiment 4
The circuit diagram of one specific example；
Motor in test product is used to indicate in Figure 11 the utility model embodiments 5 in a kind of stimulus output circuit to transport
Turn the circuit diagram of a specific example of the driving circuit of the indicator light of situation.
Reference numeral：
11-synchronous voltage regulating modules, 12-single channel voltage regulating modules, 21-current regulating modules, j1-master switch, j2-the
One selecting switch, the second selecting switch of j3-, K1-electricity sampling open-phase selecting switch, K2-electric current master switch, the first electric currents of K3-
Selecting switch, the second current selected switches of K4-, K5-third current selected switch, 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-synchronization 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 regulate and control motor, M2-single-phase voltage
Regulate and control motor, M3-single-phase voltage regulates and controls motor, M4-current regulation motor, C1-filter capacitor, C2-filter capacitor, C3-
Filter capacitor.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.In the description of the present invention, it should be noted that term " first ", " second ", " third " are only used
In description purpose, it is not understood to indicate or imply relative importance.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Embodiment 1
The utility model embodiment 1 provides a kind of stimulus output circuit, as shown in Figure 1 comprising：Input is connect respectively
The test voltage generation circuit of a plurality of input branch of power supply.When input power is three phase mains, examination that embodiment 1 is provided
It includes the identical test voltage generation circuit of three line structures for connecing mains supply A phases, B phases and C phases respectively to test signal output apparatus.
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 choosing
Select switch K1.Synchronous voltage regulating module 11 is used for while adjusting the voltage of each item input branch of input power, and first end connects respectively
Each item input branch of input power is connect, second end connects one end of the second selecting switch j3；Second selecting switch j3's is another
The electric sampling open-phase selecting switch K1 of one end connection；Single channel voltage regulating module 12 inputs branch for independently adjusting each item of input power
Voltage, one end is connected between the first end and input power of synchronous voltage regulating module 11, and the other end is connected to the second choosing
It selects between switch j3 and electric sampling open-phase selecting switch K1.Second selecting switch j3 starts three-phase synchronous pressure regulation pattern for selecting,
Or single channel 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, it can
Carry out the synchronization pressure regulation of a plurality of input branch；Single channel voltage regulating module 12 is connected by the second selecting switch j3 and cuts off synchronous pressure regulation
Module 11 can carry out independent single channel pressure regulation.In practical applications, which can be mains supply, input power
A plurality of input branch be mains supply three-phase circuit, electric sampling open-phase selecting switch K1 can be rotary switch, truth table
It is shown in Table 1.
Table 1
The stimulus output circuit that the utility model embodiment 1 provides is realized using the second selecting switch j3 and is connected together
Step die block 11 is to synchronize pressure regulation, or is realized using the second selecting switch j3 and connect single channel voltage regulating module 12 to carry out
Single channel pressure regulation, i.e. single-phase voltage regulating；Under single channel pressure regulation pattern, cooperation electricity sampling open-phase selecting switch K1 is to realize to certain voltage all the way
Output.The utility model changes the voltage regulating mode that the prior art simply cuts off the output of other two-phases in single channel pressure regulation, real
The roads Xian Liaoge input the non-interfering independent Regulation Control of branch；It is three-phase for input power in a concrete application example
When input power, by the independence regulation and control to three-phase voltage, the measurement to phase angle can be realized, to export specific phase angle and voltage
Single-phase test voltage source, meet requirement of the more complicated Electronic Testing to test voltage.
In practical applications, in order to carry out security protection to testing crew, the input in stimulus output circuit is needed
Power inleting terminal installs isolating transformer BK1 additional, as shown in Figure 2.The electrical signal voltage that input power is exported 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 certain tests,
Low power test voltage is difficult to find fault point, and needing to introduce powerful test voltage can complete to test；Therefore, Fig. 2
Shown in stimulus output circuit 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 increase the safety of test, stimulus output circuit shown in Fig. 2 is also
It is additionally arranged output switch J6K, one end of output switch J6K is connected to electric sampling open-phase selecting switch K1 to control whether that output is used for
The voltage signal of test or experiment.
In a specific embodiment, in the stimulus output circuit of the utility model embodiment 1, synchronous voltage regulating module
11 can be synchronous pressure regulator BK2, and single channel voltage regulating module 12 can be single channel pressure regulator BK3 or BK4 or BK5, see Fig. 3.It is synchronous
One end of pressure regulator BK2 coils is separately connected each item input branch of input power, and the other end of coil is separately connected zero
Line, swing arm are connected to the second selecting switch j3.One end of single channel pressure regulator BK3 or BK4 or BK5 coil connects input power
Wherein one input branch, the other end of coil connects zero curve, and swing arm is connected to the second selecting switch j3.Use pressure regulator
Carry out voltage adjusting, circuit structure is simple and pressure regulation rapid and convenient, is particularly suitable for engineer application.
It is defeated in order to be carried out to the stimulus output circuit of the utility model embodiment 1 in another specific implementation mode
Enter protection, fuse FU1~FU3, incoming power switch DZ, thunder-arresting module RT1~RT3 are additionally arranged in the end of incoming cables of input power
With master switch j1, Fig. 4 is seen.Master switch j1, first choice switch j2, the second selecting switch j3 and output switch J6K can be
Relay.By taking master switch j1 as an example, input power wherein one is connected to after the coil c1 of relay and its k1 series connection of control switch
It inputs between branch and zero curve.In the case where incoming power switch DZ is closed, coil c1 is powered on simultaneously after being closed control switch k1
It is attracted the normally opened contact j1 being controlled by it so that entire stimulus output circuit is powered on and worked.In addition, in order to avoid test
Or test product damages stimulus output circuit during experiment, in the stimulus of the utility model embodiment 1
The output end of output circuit is additionally arranged export insurance silk FU4~FU6, sees Fig. 5.In order to which the output voltage to each road is intuitively opened up
Show, A.C. voltmeter corresponding with each road output voltage is added after electric sampling open-phase selecting switch K1, to measure respectively simultaneously
Show the output voltage on each road.In order to intuitively display whether there are the output voltage on each road, export insurance silk FU4~FU6 it
It adds afterwards and exports corresponding indicator light with each road to show whether the output voltage of each phase is connected respectively.
Embodiment 2
The utility model embodiment 2 provides a kind of stimulus output circuit, includes whole components of embodiment 1, and
And it is additionally arranged test current output circuit, as shown in Figure 6.Test current output circuit includes current regulating module 21, a road test
Galvanoscope generation circuit and output switch J6K, as shown in Figure 7.Test current generation circuit includes concatenated multiple Current Mutual Inductances
Device CT1~CTn, the second current selected switch K4 and third current selected switch K5.Wherein, one end of current regulating module 21 connects
Wherein one input branch of input power is connect, the other end connects concatenated multiple 1~CTn of Current Transmit；It is concatenated more
An output end of a 1~CTn of Current Transmit connects zero curve, their another output end is connected to the second electric current
One end of selecting switch K4 and third current selected switch K5；The other end of second current selected switch K4 is connected to output switch
J6K；The other end of third current selected switch K5 connects zero curve.
Second current selected switch K4 and third current selected switch K5 are used cooperatively, it can be from concatenated multiple
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, interference signal is introduced to avoid in final test current output.With four Current Transmits 1 of connecting
For~CT4, when needing to gate Current Transmit 1 therein, the contact K4-1 in the second current selected switch K4 is controlled
It is closed, remaining contact in the second current selected switch K4 is disconnected, with the current signal of output current transformer CT1；It controls simultaneously
The contact K5-1 of third current selected switch K5 is disconnected, and is closed remaining contact in third current selected switch K5, will be removed electric current
The output of 2~CT4 of other Current Transmits other than mutual inductor CT1 introduces zero curve, avoids multiple current transformers of concatenation
Mutually bother.
In a specific embodiment, in order to be measured to the delay of test product, the zero of test current output end
Level timer js is set on line.
In practical applications, the second current selected switch K4 and third current selected switch K5 can be rotary switch,
Truth table is shown in Table 2.
Table 2
The stimulus output circuit that the utility model embodiment 2 provides, using the second current selected switch K4 to multiple
The output of concatenated 1~CTn of Current Transmit is selected；To avoid multiple 1~CTn of Current Transmit of concatenation to defeated
Go out electric current to interfere, by the output direct short-circuit on not gated current transformer and be drawn using third current selected switch K5
Enter zero curve；On the one hand, while multiple electric currents of connecting are than different current transformers, can not only meet a variety of tests to experiment electricity
The requirement of stream, and circuit structure is simple；On the other hand, it avoids introducing and bothers signal, improve test accuracy.
In a specific 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 of one end connection input power of the coil of electric current pressure regulator BK6, the other end of coil
Zero curve is connected, swing arm is connected to the primary side of current transformer B K7, and the secondary side of current transformer B K7 is connected to concatenated multiple
1~CTn of Current Transmit.It is set between the secondary side of current transformer B K7 and concatenated multiple 1~CTn of Current Transmit
There is electric current master switch K2.Concatenated multiple 1~CTn of Current Transmit open circuits simultaneously can will using electric current master switch K2
The secondary short circuit of current transformer B K7.At this point it is possible to utilize the current transformer being connected on the secondary side of current transformer B K7
CT measures the secondary side output of current transformer B K7.It adjusts the swing arm of electric current pressure regulator BK6 and observes the finger of Current Transmit
Show, when the output of current transformer B K7 meets the requirements, concatenated multiple current transformers are connected by electric current master switch K2
CT1~CTn is with output test electric current.The test current generation circuit being made of multiple 1~CTn of Current Transmit can have more
Road includes three road test galvanoscope generation circuits as shown in Figure 8.The selection of the first electric current can be added after electric current master switch K2 to open
K3 is closed, which test current generation circuit gated to control selections.After exporting switch J6K, electric current phase can be added
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, truth table is shown in Table 3.In order to avoid test product exports electricity to the stimulus that the utility model embodiment 2 provides
Road damages, and export insurance silk FU10~FU12 is added after current phase selecting switch K6.
Table 3
Embodiment 3
The utility model applies example 3 and provides a kind of stimulus output circuit, includes all members of embodiment 1 and embodiment 2
Device, and it is additionally arranged single-phase voltage regulation and control motor M1~M3, Yi Jiyong for controlling the BK3~BK5 outputs of single channel pressure regulator
In the current regulation motor M4 of control electric current pressure regulator BK6 outputs.In order to drive single-phase voltage regulation and control motor M1~M3 and electric current
Regulate and control motor M4 forward or reverse, the stimulus output circuit that the utility model applies example 3 is additionally arranged driving circuit.Such as Fig. 9 institutes
Show, the driving circuit of motor includes：Motor transformer BK8, bridge rectifier module, fuse FU7 and filter capacitor C1.Motor becomes
One end of the primary side of depressor BK8 is connected to input power wherein one and inputs branch, and the other end of primary side connects zero curve, secondary side
Both ends connection bridge-type rectification module two input terminals；One end of fuse FU7 is connected to the secondary side of motor transformer BK8,
The other end of fuse FU7 is grounded；Filter capacitor C1 is connected between two output ends of bridge rectifier module.
The power input for controlling single-phase voltage regulation and control motor M1~M3 and current regulation motor M4 contacts drive shown in Fig. 9
The positive output end of dynamic circuit, can control motor to rotate forward；The negative sense output end of driving circuit is contacted, motor reversal is can control, with
This realizes that the output to single channel pressure regulator BK3~BK5 and electric current pressure regulator BK6 is adjusted.
Embodiment 4
The utility model applies example 4 and provides a kind of stimulus output circuit, includes whole components of Examples 1 to 3, and
And it is additionally arranged DC experiment current output circuit, as described in Figure 10.DC experiment current output circuit includes direct current output transformation
Device BK9, direct current output selecting switch K6, bridge rectifier module, fuse FU9 and filter capacitor C2.Wherein, direct current output transformation
One end of the primary side of device BK9 is connected to input power wherein one and inputs branch, and the other end of primary side connects zero curve, secondary side
One end is connected to an input terminal of bridge rectifier module through direct current output selecting switch K7, and the other end on secondary side connects bridge-type
Another input terminal of rectification module；An output end for connecing bridge rectifier module is connected to fuse FU9, the output end, that is, straight
Flow test current output end；Filter capacitor C2 is connected between two output ends of bridge rectifier module.
The stimulus output circuit that the utility model embodiment 4 provides has DC experiment electric current output function, into one
Step enriches the type of stimulus, to meet the needs of a variety of tests.
Embodiment 5
The utility model applies example 5 and provides a kind of stimulus output circuit, includes whole components of Examples 1 to 4, and
And add the indicator light for being used to indicate motor working order in test product.The driving circuit of above-mentioned indicator light is as shown in figure 11,
Including transformer BK10, bridge rectifier module, fuse FU8 and filter capacitor C3.Wherein, one end of the primary side of transformer BK10
It is connected to input power wherein one and inputs branch, the other end of primary side connects zero curve, and the both ends on secondary side are connected to bridge
Two input terminals of formula rectification module, for the positive output end of bridge rectifier module through fuse FU8 outputs+12V DC, bridge-type is whole
It is connected with filter capacitor C3 between the positive output end and negative sense output end of flow module.It, can be by above-mentioned instruction when practical application
Lamp and controlled switch be connected to driving circuit+between 12V DC output end and negative sense output end, and controlled switch receives survey
The manipulation of motor in trial product.For example, the indicator light for being used to indicate motor rotating forward in test product can be with a controlled switch
Be connected on jointly driving circuit+between 12V DC output end and negative sense output end, the controlled switch is electric only in test product
Machine can be attracted when rotating forward；After accessing test voltage or test current, the motor in test product can rotate forward, then this is controlled
Switch is closed so that being used to indicate the indicator light that motor rotates forward in test product and lights.
The stimulus output circuit that the utility model embodiment 4 provides, can be when product be verified to the fortune of its motor
Turn situation intuitively to be shown, testing staff is facilitated to identify.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.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 variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Among the protection domain that variation is created still in the utility model.
Claims (10)
1. a kind of stimulus output circuit, which is characterized 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 terminal of the test voltage generation circuit connects input power；
The synchronous voltage regulating module (11) while the voltage for adjusting each item input branch of the input power, the synchronous pressure regulation mould
The first end of block (11) is separately connected each item input branch of the input power；The 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 item input branch of the input power, the single channel pressure regulation mould respectively
One end of block (12) is connected between the 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, which is characterized in that further 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, which is characterized in that further 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 is separately connected each item input branch of the input power, described same
The other end of step depressor (BK2) coil is separately connected zero curve, 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 of the input power, in the single channel pressure regulator
The other end of coil connects zero curve, 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, which is characterized in that further 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 concatenated multiple current transformers (CT1~CTn), the second current selected switch
(K4) and third current selected switch (K5), wherein
One end of the current regulating module (21) connects wherein one input branch of the input power, the current regulation mould
The other end of block (21) connects concatenated multiple current transformers (CT1~CTn)；The multiple current transformer (CT1~CTn)
An output end connect zero curve, another output end of the multiple current transformer (CT1~CTn) is selected through the second electric current
Switch (K4) connection output switch (J6K)；One end of the third 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 third current selected switch (K5)
Line.
6. stimulus output circuit according to claim 5, which is characterized in that current regulating module (21) packet
It includes：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 of the input power, the electric current tune
The other end of the coil of depressor BK6 connects zero curve, and the swing arm of the electric current pressure regulator BK6 is connected to the original of current transformer B K7
The secondary side on side, the current transformer B K7 is connected to concatenated multiple current transformers (CT1~CTn).
7. stimulus output circuit according to claim 4, which is characterized in that further include for controlling the single channel tune
The single-phase voltage of depressor output regulates and controls motor.
8. stimulus output circuit according to claim 6, which is characterized in that further include for controlling the electric current tune
The current regulation motor (M4) of depressor BK6 outputs.
9. stimulus output circuit according to claim 8, which is characterized in that the drive of the current regulation motor (M4)
Dynamic circuit 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 of input power, and the motor becomes
The other end of the primary side of depressor (BK8) connects zero curve, and the both ends on the secondary side of the motor transformer (BK8) connect bridge rectifier mould
Two input terminals of block；
One end of the fuse (FU7) is connected to the secondary side 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, which is characterized in that further 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 of input power, described straight
The other end of the primary side of stream output transformer (BK9) connects zero curve, one end warp on the secondary side of the direct current output transformer (BK9)
Direct current output selecting switch (K7) is connected to an input terminal of bridge rectifier module, the direct current output transformer (BK9)
Another input terminal of the other end connection bridge-type rectification module on secondary side；
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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| CN201721525937.6U CN207882317U (en) | 2017-11-15 | 2017-11-15 | A kind of stimulus output circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727898A (en) * | 2017-11-15 | 2018-02-23 | 乾友科技有限公司 | A kind of stimulus output circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727898A (en) * | 2017-11-15 | 2018-02-23 | 乾友科技有限公司 | A kind of stimulus output circuit |
| CN107727898B (en) * | 2017-11-15 | 2024-03-19 | 乾友科技有限公司 | Test signal output circuit |
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