CN207037372U - Control circuit, electronic equipment - Google Patents
Control circuit, electronic equipment Download PDFInfo
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- CN207037372U CN207037372U CN201721001591.XU CN201721001591U CN207037372U CN 207037372 U CN207037372 U CN 207037372U CN 201721001591 U CN201721001591 U CN 201721001591U CN 207037372 U CN207037372 U CN 207037372U
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- switch circuit
- difference channel
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- circuit
- control circuit
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Abstract
The utility model discloses a kind of control circuit, electronic equipment.Wherein, the control circuit includes：First switch circuit, for when disconnecting, triggering to produce fault-signal；Second switch circuit, the output end of the input access first switch circuit of second switch circuit, wherein, when first switch circuit disconnects, second switch circuit output end output high level；Difference channel, the output end of the Enable Pin access second switch circuit of difference channel, the input of drive mechanism in the output end access target device of difference channel, for when second switch circuit output end exports high level, the first control signal to be exported to drive mechanism.The utility model solves prior art and can not realized in the case where not powering off, and controls the technical problem of kinetic control system jerk.
Description
Technical field
Equipment control field is the utility model is related to, in particular to a kind of control circuit, electronic equipment.
Background technology
Automatic electric drive control system, also known as kinetic control system, in today's society, the application of kinetic control system is
Through quite popularization, in factory, family, manufacturing machine or household electrical appliance using motor as power, such as steel rolling mill are found everywhere
Tandem mill, the stock-removing machine of job shop, the paper machine in paper mill, the weaving loom of textile mills, the mixer in chemical plant and centrifugation
Machine, carries the crane and transmission belt of factory, refrigerator, washing machine, hair-dryer in family etc..
But in traditional kinetic control system, when in case of emergency, it is necessary to allow equipment jerk to protect behaviour
Make the product in employee, equipment and production, in general jerk mode is direct deenergization, and this method has the following disadvantages：It is right
Equipment has certain damage；Equipment can not preserve the fault message of appearance because of direct deenergization, be not easy to looking into for consequent malfunction
Look for and analyze.
Can not be realized for above-mentioned prior art in the case where not powering off, control kinetic control system jerk the problem of,
Not yet propose effective solution at present.
Utility model content
The utility model embodiment provides a kind of control circuit, electronic equipment, can not be real at least to solve prior art
In the case of not powering off now, the technical problem of kinetic control system jerk is controlled.
According to the one side of the utility model embodiment, there is provided a kind of control circuit, including：First switch circuit,
For when disconnecting, triggering to produce fault-signal；Second switch circuit, the input access first switch electricity of second switch circuit
The output end on road, wherein, when first switch circuit disconnects, second switch circuit output end output high level；Difference channel, it is poor
The output end of the Enable Pin access second switch circuit of parallel circuit, the output end of difference channel access drive mechanism in target device
Input, for second switch circuit output end export high level when, interrupt to drive mechanism output control signal.
Further, the second input of second switch circuit and the grounded emitter of output end, second switch circuit
The Enable Pin of colelctor electrode access differential circuit.
Further, control circuit also includes：First resistor, the first end of first resistor access the defeated of first switch circuit
Go out end, the second of first resistor terminates the first input end into second switch circuit；Second resistance, the first termination of second resistance
Enter the Enable Pin of difference channel, the second of second resistance terminates the power end into difference channel.
Further, second switch circuit and difference channel be multiple, also, second switch circuit and difference channel
Quantity is identical.
Further, second switch circuit is photo-coupler or switching tube.
Further, first switch circuit includes：Emergency stop switch.
Further, difference channel includes：Differential driving chip.
According to the another aspect of the utility model embodiment, a kind of electronic equipment is additionally provided, including：Above-mentioned control electricity
Road；Drive mechanism, it is connected with control circuit, is driven for receiving the control signal from control circuit, and according to control signal
Executing agency performs action corresponding with control signal；Executing agency, it is connected with drive mechanism.
Further, drive mechanism includes：Driver and the motor being connected with driver.
In the utility model embodiment, by first switch circuit, for when disconnecting, triggering to produce fault-signal；
Second switch circuit, the output end of the input access first switch circuit of second switch circuit, wherein, in first switch circuit
During disconnection, second switch circuit output end output high level；Difference channel, the Enable Pin access second switch circuit of difference channel
Output end, difference channel output end access target device in drive mechanism input, for defeated in second switch circuit
When going out end output high level, the power supply for drive mechanism output control signal, having reached and need not having cut off equipment is interrupted, you can with reality
The purpose of existing jerk, it is achieved thereby that the stability of protection system, avoids the technique effect of system failure, and then solve existing
Technology can not be realized in the case where not powering off, and control the technical problem of kinetic control system jerk.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the schematic diagram according to a kind of control circuit of the utility model embodiment；
Fig. 2 is the schematic diagram according to a kind of optional control circuit of the utility model embodiment；And
Fig. 3 is the schematic diagram according to a kind of electronic equipment of the utility model embodiment.
Embodiment
In order that those skilled in the art more fully understand the utility model, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that be described
Embodiment is only the embodiment of the utility model part, rather than whole embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all should
When the scope for belonging to the utility model protection.
Embodiment 1
The utility model embodiment provides a kind of embodiment of control circuit, and Fig. 1 is according to the utility model embodiment
A kind of control circuit schematic diagram, as shown in figure 1, the control circuit includes：First switch circuit 10, second switch circuit 12
With difference channel 14, wherein,
First switch circuit 10, for when disconnecting, triggering to produce fault-signal；Second switch circuit 12, second switch
The output end of the input access first switch circuit of circuit, wherein, when first switch circuit disconnects, second switch circuit is defeated
Go out end output high level；Difference channel 14, the output end of the Enable Pin access second switch circuit of difference channel, difference channel
Output end access target device in drive mechanism input, for second switch circuit output end export high level when, in
Break to drive mechanism output control signal.
Optionally, above-mentioned fault-signal can be emergent stop signal, as a kind of optional embodiment, in commercial Application,
In view of safety factor, typically triggered by emergency stop switch and produce emergent stop signal.
Wherein, above-mentioned first switch circuit 10 can include emergency stop switch, generally, maintain to run in kinematic system
In the case of, emergency stop switch is closure state, when in case of emergency, the product in protection operation employee, equipment and production,
Need to press emergency stop switch, control kinematic system jerk, in this case, emergency stop switch is off-state, with off-state
Corresponding voltage substantially reduces compared to voltage under normal circumstances, it is preferred that can be 0.
As a kind of optional embodiment, above-mentioned second switch circuit 12 can include photo-coupler or switching tube, poor
Parallel circuit 14 can include differential driving chip, as a kind of optional embodiment, can be but be not limited to differential driving chip
AM26LVC31, the chip that every enable signal can change signal transmission characteristicses are all suitable for the application, and this is not limited specifically
It is fixed.
As a kind of optional embodiment, above-mentioned target device can be, but not limited to kinetic control system, further, fortune
Autocontrol system can be the non-bus type motion control system being made up of upper manual operator, motion controller, driver, motor
System, for example, injection molding mechanical arm control system, above-mentioned drive mechanism can include but is not limited to the driver in kinetic control system
And motor, for example, servo-driver and servomotor.
In pulsing type motion control system, motion controller is by control signal by being sent to servo-driver, servo
Driver makes servomotor operate at working condition corresponding with the control signal with what is received by driving servomotor.
In order to ensure the reliability of control signal, the control signal sent out from motion controller can typically be converted to differential driving signal
It is transmitted, is typically necessary and is passed through control signal by differential driving chip using differential driving chip, motion controller
It is sent to servo-driver；Optionally, above-mentioned control signal can include：Pulse and direction signal.
In a kind of optional embodiment, emergency stop switch, second switch electricity can be included with above-mentioned first switch circuit 10
Road 20 includes photo-coupler, and exemplified by difference channel includes differential driving chip, Fig. 2 is one kind according to the utility model embodiment
The structural representation of optional control circuit, as shown in Fig. 2 the output end of emergency stop switch can access optocoupler through a resistance Rb
Clutch UB input, photo-coupler UB output end can the Enable Pin through a resistance Ra access differential driving chips UA
CTRL (that is, UA No. 12 pins), the output end of difference channel can access the defeated of drive control device in kinetic control system
Enter end, because the whether enabled Enable Pin of difference channel is according to its Automatic level control accessed, therefore, in photo-coupler UB
Output end from output low level be changed into export high level in the case of, interrupt to the drive control device output control signal.
As a kind of optional embodiment, still as shown in Fig. 2 single-ended signal is transformed into difference by differential driving chip UA
Control signal is transmitted, as shown in Fig. 2 1A, 2A are the input signal (D1, P1) of single-ended direction pulse, through the differential driving chip
2 pairs of difference control signals (D1P, D1N, D2P, D2N) are converted to, difference control signal is then transferred to target device, target
Equipment receives 2 pairs of difference control signals.
Still as shown in Fig. 2 VCC is UA digital power；GND is digitally；G and the Enable Pin pin that/G is UA；UA has
Four pairs of Y, Z translation interfaces, four tunnel input signals can be converted to differential driving signal and exported.
Table 1 be according to a kind of menu of optional difference channel of the utility model embodiment, in table 1 " enabled G ,/
G ", " " output 1Y, 2Y, 1Z, 2Z " are corresponding with the pin in Fig. 2 by input 1A, 2A "；In addition, H is high voltage, L is low-voltage, X
For unrelated amount, Z is high-impedance state.
In a kind of optional embodiment, when emergency stop switch closes, photo-coupler UB is in the conduction state, photo-coupler
UB output end exports low level to differential driving chip UA Enable Pin CTRL；Such as " enabled G ,/G " institute of 2-5 rows in table 1
To show, now/G control signal is low level, another enabled pin G of differential driving chip UA as can be seen from Figure 2 (that is,
Chip UA No. 4 pins) connect all the time digitally, low level is always maintained at, in the case, differential driving chip UA is operated in difference
Point transmission state, that is, as in table 1 2-5 rows " export 1Y, 2Y, 1Z, the state shown in 2Z ".
Table 1
In an alternative embodiment, when emergency stop switch is pressed, emergency stop switch disconnects, now photo-coupler UB
In the state that do not turn on, photo-coupler UB output end exports high level to differential driving chip UA Enable Pin CTRL, such as table 1
In the 6th row " shown in enabled G ,/G ", now/G control signal be high level, and another due to differential driving chip UA enables
Pin G connects digitally, is always maintained at low level, that is, as in table 1 the 6th row " output 1Y, 2Y, 1Z, the state shown in 2Z ",
In the case, differential driving chip UA is operated in differential transfer high-impedance state, and differential driving chip UA interrupts motion controller hair
Give pulse and the direction signal of driver.
It should be noted that the two-way that the application is not limited in Fig. 2 sends signal, can during specific implementation
It is more to reach the multipair pulse of transmission and direction signal control to select any multiple signals to coordinate any number of differential driving chips
The purpose of platform driver and motor.
In kinetic control system field, when in case of emergency, it is necessary to allow equipment jerk so as to protect operation employee,
Product in equipment and production, transmission feature of the jerk scheme provided by the utility model according to differential driving chip, in jerk
In the case that signal does not provide, differential driving chip operation is in difference output state, in the case where emergent stop signal provides, difference
High-impedance state, the transmission information that cut-out motion controller is sent to driver, it is possible to achieve not is presented in driving chip working condition
In the case of cutting off the electricity supply, the jerk of kinetic control system is realized, effectively protects the stability of system, avoids the damage of system
It is bad.
It should be noted that above-mentioned control circuit and the application other embodiment, can be, but not limited to use and are controlled in motion
System regions processed, it is equally applicable to the equipment in other field.
In a kind of optional embodiment, the second input of second switch circuit and the grounded emitter of output end, the
The Enable Pin of the colelctor electrode access differential circuit of two on-off circuits.
As a kind of optional embodiment, still so that second switch circuit is photo-coupler as an example, the second of photo-coupler is defeated
Enter the grounded emitter of end and output end, it is preferred that as shown in Fig. 2 the second input terminating systems power supply of photo-coupler, it is defeated
The emitter stage for going out end connects digitally, the Enable Pin CTRL of the colelctor electrode access differential circuit of photo-coupler.
In a kind of optional embodiment, first resistor, the output of the first end access first switch circuit of first resistor
End, the second of first resistor terminates the first input end into second switch circuit；Second resistance, the first end access of second resistance
The Enable Pin of difference channel, the second of second resistance terminates the power end into difference channel.
As a kind of optional embodiment, still so that second switch circuit is photo-coupler as an example, as shown in Fig. 2 the first electricity
The output end of Rb first end access emergency stop switch is hindered, the second of first resistor Rb terminates the first input into photo-coupler UB
End；The Enable Pin CTRL of second resistance Ra first end access differential driving chip, second resistance Ra the second end access differential
The ACC digital powers of driving chip.
In a kind of optional embodiment, second switch circuit and difference channel are multiple, also, second switch circuit
Quantity with difference channel is identical.
As a kind of optional embodiment, in the case where second switch circuit is photo-coupler, can be opened according to jerk
The closed and disconnected situation of pass, the light and shade variable condition of the light emitting diode in photo-coupler is controlled, also, it is luminous detecting
Diode by it is bright dimmed when, the control signal that is exporting of differential driving chip cut-out.
Embodiment 2
The utility model embodiment provides the embodiment of a kind of electronic equipment, and Fig. 3 is according to the utility model embodiment
A kind of electronic equipment structural representation, as shown in figure 3, the electronic equipment includes：Control circuit 30, drive mechanism 32 and
Executing agency 34, wherein,
Control circuit 30；Drive mechanism 32, it is connected with control circuit 30, for receiving the control letter from control circuit 30
Number, and drive executing agency 34 to perform action corresponding with control signal according to control signal；Executing agency 34, with drive mechanism
32 connections.
As a kind of optional embodiment, above-mentioned control circuit 30 is any one control circuit in embodiment 1, above-mentioned
Electronic equipment can be, but not limited to kinetic control system, and further, kinetic control system can be by upper manual operator, motion
Controller, driver, the non-bus type kinetic control system of motor composition, for example, injection molding mechanical arm control system.
In a kind of optional embodiment, in pulsing type motion control system, motion controller passes through control signal
Servo-driver is sent to, servo-driver makes servomotor and what is received operates at and the control by driving servomotor
Working condition corresponding to signal processed.In order to ensure the reliability of control signal, the control signal one that is sent out from motion controller
As can be converted to differential driving signal and be transmitted, be typically necessary and pass through difference using differential driving chip, motion controller
Driving chip is by control signal by being sent to servo-driver；Optionally, above-mentioned control signal can include：Pulse and direction
Signal.
Specifically, driver that above-mentioned drive mechanism can include but is not limited in kinetic control system and with the driver
The motor of connection, for example, servo-driver and the servo drive motor being connected with servo-driver.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (9)
- A kind of 1. control circuit, it is characterised in that including：First switch circuit, for when disconnecting, triggering to produce fault-signal；Second switch circuit, the input of the second switch circuit access the output end of the first switch circuit, for When the first switch circuit disconnects, the second switch circuit output end exports high level；Difference channel, the Enable Pin of the difference channel access the output end of the second switch circuit, the difference channel The input of drive mechanism in output end access target device, for exporting high level in the second switch circuit output end When, to the drive mechanism output control signal.
- 2. control circuit according to claim 1, it is characterised in that the second input of the second switch circuit and defeated Go out the grounded emitter at end, the colelctor electrode of the second switch circuit accesses the Enable Pin of the difference channel.
- 3. control circuit according to claim 1, it is characterised in that the control circuit also includes：First resistor, the first end of the first resistor access the output end of the first switch circuit, the first resistor Second terminates the first input end into the second switch circuit；Second resistance, the Enable Pin of the first end access difference channel of the second resistance, the second of the second resistance Terminate the power end into the difference channel.
- 4. control circuit as claimed in any of claims 1 to 3, it is characterised in that the second switch circuit and The difference channel is multiple, also, the quantity of the second switch circuit and the difference channel is identical.
- 5. control circuit as claimed in any of claims 1 to 3, it is characterised in that the second switch circuit is Photo-coupler or switching tube.
- 6. control circuit as claimed in any of claims 1 to 3, it is characterised in that the first switch circuit bag Include：Emergency stop switch.
- 7. control circuit as claimed in any of claims 1 to 3, it is characterised in that the difference channel includes：Difference Divide driving chip.
- 8. a kind of electronic equipment, it is characterised in that including：Control circuit in the claims 1 to 7 described in any one；Drive mechanism, it is connected with the control circuit, for receiving the control signal from the control circuit, and according to described Control signal drives executing agency to perform action corresponding with the control signal；The executing agency, it is connected with the drive mechanism.
- 9. electronic equipment according to claim 8, it is characterised in that the drive mechanism includes：Driver and with it is described The motor of driver connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721001591.XU CN207037372U (en) | 2017-08-10 | 2017-08-10 | Control circuit, electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721001591.XU CN207037372U (en) | 2017-08-10 | 2017-08-10 | Control circuit, electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207037372U true CN207037372U (en) | 2018-02-23 |
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ID=61487150
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721001591.XU Active CN207037372U (en) | 2017-08-10 | 2017-08-10 | Control circuit, electronic equipment |
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| Country | Link |
|---|---|
| CN (1) | CN207037372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110868236A (en) * | 2019-11-28 | 2020-03-06 | 广东美的暖通设备有限公司 | Communication circuit and air conditioner |
-
2017
- 2017-08-10 CN CN201721001591.XU patent/CN207037372U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110868236A (en) * | 2019-11-28 | 2020-03-06 | 广东美的暖通设备有限公司 | Communication circuit and air conditioner |
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