CN210404845U - Circuit switch control system - Google Patents
Circuit switch control system Download PDFInfo
- Publication number
- CN210404845U CN210404845U CN201921152653.6U CN201921152653U CN210404845U CN 210404845 U CN210404845 U CN 210404845U CN 201921152653 U CN201921152653 U CN 201921152653U CN 210404845 U CN210404845 U CN 210404845U
- Authority
- CN
- China
- Prior art keywords
- control
- chip
- control system
- controlled circuit
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012544 monitoring process Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 15
- 238000012806 monitoring device Methods 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a circuit switch control system, this control system includes: monitoring facilities, main control chip, driver chip and controller, wherein: the monitoring equipment is used for acquiring the line information of the controlled circuit; the main control chip is connected with the monitoring equipment and used for receiving the line information of the controlled circuit collected by the monitoring equipment and generating a control signal according to the line information; the driving chip is connected with the main control chip and used for receiving the control and carrying out driving control on the controller according to the control signal; and the controller is connected with the driving chip and is used for carrying out on-off control on the controlled circuit under the driving control of the driving chip. By the technical scheme, the technical problems of short service life, overlarge volume and higher cost of the conventional mechanical direct-current switch are solved, and the technical effects of effectively reducing the switch volume and reducing the cost are achieved.
Description
Technical Field
The utility model relates to a circuit control technical field particularly, relates to a circuit switch control system.
Background
With the development of new energy, the application of direct current is driven, and more direct current appliances are used by people. In the energy internet system, the safety of the use of the direct current electric appliance is very important, and the direct current electric appliance comprises a reliable switch for a power supply. The existing direct current switch is generally provided with a direct current contactor, and the mechanical switch is large in size and high in cost due to the fact that an arc extinguishing device is arranged inside the mechanical switch, and is inconvenient to use in a low-power electric equipment environment.
In view of the above problems, no effective solution has been proposed.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a circuit switch control system solves current mechanical type direct current switch bulky, the higher technical problem of cost.
In one aspect, a line switch control system is provided, comprising: monitoring facilities, main control chip, driver chip and controller, wherein:
the monitoring equipment is used for acquiring the line information of the controlled circuit;
the main control chip is connected with the monitoring equipment and used for receiving the line information of the controlled circuit collected by the monitoring equipment and generating a control signal according to the line information;
the driving chip is connected with the main control chip and used for receiving the control and carrying out driving control on the controller according to the control signal;
and the controller is connected with the driving chip and is used for carrying out on-off control on the controlled circuit under the driving control of the driving chip.
In one embodiment, the controller comprises one of: MOS switch tube and thyristor.
In one embodiment, an AD module is disposed in the main control chip and is configured to convert the line information of the controlled circuit collected by the monitoring device into a digital signal.
In one embodiment, the monitoring device comprises: a voltage monitor and/or a current monitor, the line information comprising: voltage data and/or current data.
In one embodiment, the voltage monitor is a monitor using a resistance voltage division method, and the current monitor is a monitor using a low resistance sampling method.
In one embodiment, the main control chip includes:
the voltage calculation circuit is used for determining the frequency of the control signal according to the voltage data of the controlled circuit;
and the current calculating circuit is used for adjusting the frequency of the control signal according to the real-time current data of the controlled circuit in the switching process.
In one embodiment, the main control chip includes:
and the timing circuit is used for controlling the steady-state time of the switch.
In the above embodiment, there is provided a line switch control system, including: monitoring facilities, main control chip, driver chip and controller, through monitoring facilities collection controlled circuit's line information, generate control signal through main control chip, then realize the control to the controller through driver chip, thereby realize the on-off control to controlled circuit, promptly, electronic type direct current power-on control has been realized, thereby solved the technical problem that current mechanical type direct current switch exists short-lived, the volume is too big, the cost is higher, reached and effectively reduced the switch volume, reduce cost's technological effect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic diagram of a circuit switch control system according to an embodiment of the present invention;
fig. 2 is a flow chart of a control method of a line switch control system according to an embodiment of the present invention;
fig. 3 is another schematic diagram of a circuit switch control system according to an embodiment of the present invention;
fig. 4 is a circuit schematic diagram of a line switch control system according to an embodiment of the present invention;
fig. 5 is a schematic flow chart illustrating switching control of a line according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In order to solve the problems of large volume and high price of the existing arc extinguishing device of the direct current mechanical switch and the problem of overlarge current caused by instantaneous power supply of a load when direct current is electrified, the circuit switch control system is provided in the embodiment to reduce current pulse generated at a load end when direct current is electrified, avoid damage to the load and a switch device and reduce the possibility of danger.
Specifically, in this example, the soft start switch is implemented by using a monitoring device, a main control chip, a driving chip, a controller, and the like, wherein the switching frequency can be adjusted according to the voltage, so that the soft start switch can meet the soft start requirements of different voltage classes and load classes.
As shown in fig. 1, in this example, a line switch control system is provided, which, as shown in fig. 1, may include: monitoring facilities 101, main control chip 102, driver chip 103 and controller 104, wherein:
the monitoring equipment 101 is used for acquiring line information of a controlled circuit;
the main control chip 102 is connected with the monitoring device, and is used for receiving the line information of the controlled circuit collected by the monitoring device and generating a control signal according to the line information;
the driving chip 103 is connected with the main control chip and used for receiving the control and carrying out driving control on the controller according to the control signal;
and the controller 104 is connected with the driving chip and is used for performing on-off control on the controlled circuit under the driving control of the driving chip.
In the above example, there is provided a line switch control system comprising: monitoring facilities, main control chip, driver chip and controller, through monitoring facilities collection controlled circuit's line information, generate control signal through main control chip, then realize the control to the controller through driver chip, thereby realize the on-off control to controlled circuit, promptly, electronic type direct current power-on control has been realized, thereby the short-lived that current mechanical type direct current switch exists has been reduced, bulky, the higher technical problem of cost, reached the technical effect of effectively reducing the switch volume, reduce cost.
In order to realize effective control on the controlled line, the controller can be, but is not limited to: MOS switch tube and thyristor.
Because the monitoring device monitors an analog signal and needs to convert the analog signal into a definite voltage value or current value in order to generate a control signal, an AD module may be arranged in the main control chip to convert the line information of the controlled circuit collected by the monitoring device into a digital signal.
The monitoring device described above may include: a voltage monitor and/or a current monitor, and accordingly, the line information may include: voltage data and/or current data. The voltage monitor may be a monitor using a resistance voltage division method, and the current monitor may be a monitor using a small resistance sampling method.
In order to achieve effective calculation of voltage and effective calculation of current, so as to generate a control signal and effectively adjust frequency, the main control chip may include: the voltage calculation circuit is used for determining the frequency of the control signal according to the voltage data of the controlled circuit; and the current calculating circuit is used for adjusting the frequency of the control signal according to the real-time current data of the controlled circuit in the switching process.
The above-mentioned main control chip may further include: and the timing circuit is used for controlling the steady-state time of the switch. Namely, a timing unit can be added in the main chip to set the switch steady-state time, and when the set steady-state time is reached, the high-frequency control is finished and the normal working mode is entered. This approach sacrifices real-time control, but ensures reliability of soft start.
Based on the line switch control system, the line switch control can be performed according to the steps shown in fig. 2, and the method can include the following steps:
step 201: monitoring the voltage of the controlled line to obtain a voltage value;
step 202: obtaining the frequency of a control signal according to the voltage value;
step 203: and generating and outputting a control signal to the driving chip according to the frequency of the control signal so as to realize the switch control of different frequencies on the controlled circuit through the controller.
In order to realize the real-time control of the control frequency, after the controller realizes the switch control of different frequencies on the controlled circuit, the current value of the controlled circuit can be detected in real time in the process of carrying out the switch control of different frequencies on the controlled circuit; when the current value is larger than a preset current threshold value, increasing the control frequency; in case the current value reaches a steady state, the switching frequency enters a steady state. Namely, control signal output is executed, and the control signal passes through the driving chip to realize different-frequency switching of the control device so as to achieve the effect of slow start. In the switching process, the current detection can measure the circuit current in real time, and when the current is too large, the chip can increase the control frequency so as to reduce the impact current and ensure the safety of the circuit and the load. After the current reaches a steady state, the switch enters a steady state, the chip outputs a constant switching signal, the circuit enters a normal working state, and the whole slow start process is finished.
The frequency of the control signal obtained according to the voltage value may be a preset configuration table, wherein a corresponding relationship between the voltage value and the frequency is recorded in the configuration table; and determining the frequency of the control signal according to the monitored voltage value and the configuration table. Namely, a configuration table is preset, and the control frequency corresponding to the voltage value can be directly inquired based on the configuration table.
The above-mentioned solution is described below with reference to a specific embodiment, however, it should be noted that the specific embodiment is only for better describing the present application and is not to be construed as a limitation of the present application.
Aiming at the problems of large volume and high price of the existing arc extinguishing device with the direct current mechanical switch and the problem of overlarge current caused by instantaneous power supply of a load when the direct current is electrified, the electronic direct current electrification control system is provided in the embodiment, so that the current pulse generated at the load end when the direct current is electrified is reduced, the damage to the load and a switch device is avoided, and the possibility of danger is reduced.
Specifically, in this example, the main control MCU, the driving chip, and the MOS switch device are used to implement the soft start switch, wherein the switching frequency can be adjusted according to the voltage level, so as to meet the soft start requirements of different voltage levels and load levels.
As shown in fig. 3, the present example provides a switching device, which may include: the device comprises a main control MCU, a driving module, a control unit and a monitoring unit. Wherein:
the main control MCU (equivalent to the main control chip 102) is responsible for controlling the whole process, calculating the voltage and current of the circuit, and outputting a control signal, and an AD module is arranged in the chip and used for calculating and collecting the voltage and current;
the monitoring unit (equivalent to the monitoring device 101) is used for sampling voltage and current on the line and transmitting a sampling signal to the MCU, wherein the voltage monitoring can adopt a resistance voltage division mode, and the current sampling can adopt a small resistance sampling mode;
the driving unit (corresponding to the driving chip 103) is used for enhancing the driving capability and improving the driving force of the chip, and the driving unit not only has high driving capability, but also has high speed, so as to meet different control switch signals;
the control unit (corresponding to the controller 104 described above) is used to implement control on the line, and specifically, may be a MOS switch tube or a thyristor.
Based on the above-mentioned switching device, it can operate according to the circuit diagram shown in fig. 4 and the flow shown in fig. 5, and after the operation is started, the initialization is performed, which includes: control signal clearing, AD module initialization, etc. And then, carrying out voltage monitoring to detect the line voltage, and obtaining the frequency of the control signal according to an internal existing configuration table of the voltage value and the control rate after obtaining the voltage value. The configuration table may be iteratively updated according to different application scenarios and loads according to a large data value obtained by testing.
Then, control signal output is executed, and the control signal passes through the driving chip to realize the switching of different frequencies of the control device, so as to achieve the effect of slow start. In the switching process, the current detection can measure the circuit current in real time, and when the current is too large, the chip can increase the control frequency so as to reduce the impact current and ensure the safety of the circuit and the load. After the current reaches a steady state, the switch enters a steady state, the chip outputs a constant switching signal, the circuit enters a normal working state, and the whole slow start process is finished.
Furthermore, a timing unit can be added to the main chip to set the switch steady-state time, and when the set steady-state time is reached, the high-frequency control is finished and the normal working mode is entered. This approach sacrifices real-time control, but ensures reliability of soft start.
In the above example, a small-size and high-reliability dc control system is provided, and the size and cost of dc control can be reduced on the premise of ensuring reliability.
From the above description, it can be seen that the embodiments of the present invention achieve the following technical effects: there is provided a line switch control system comprising: monitoring facilities, main control chip, driver chip and controller, through monitoring facilities collection controlled circuit's line information, generate control signal through main control chip, then realize the control to the controller through driver chip, thereby realize the on-off control to controlled circuit, promptly, electronic type direct current power-on control has been realized, thereby the short-lived that current mechanical type direct current switch exists has been reduced, bulky, the higher technical problem of cost, reached the technical effect of effectively reducing the switch volume, reduce cost.
Although various specific embodiments are mentioned in the disclosure of the present application, the present application is not limited to the cases described in the industry standards or the examples, and the like, and some industry standards or the embodiments slightly modified based on the implementation described in the custom manner or the examples can also achieve the same, equivalent or similar, or the expected implementation effects after the modifications. These modified and altered embodiments may still be used within the scope of alternative embodiments of the present application.
While the present application has been described by way of examples, those of ordinary skill in the art will appreciate that there are numerous variations and permutations of the present application that do not depart from the spirit of the present application and that the appended embodiments are intended to include such variations and permutations without departing from the present application.
Claims (7)
1. A line switch control system, comprising: monitoring facilities, main control chip, driver chip and controller, wherein:
the monitoring equipment is used for acquiring the line information of the controlled circuit;
the main control chip is connected with the monitoring equipment and used for receiving the line information of the controlled circuit collected by the monitoring equipment and generating a control signal according to the line information;
the driving chip is connected with the main control chip and used for receiving the control and carrying out driving control on the controller according to the control signal;
and the controller is connected with the driving chip and is used for carrying out on-off control on the controlled circuit under the driving control of the driving chip.
2. The line switch control system of claim 1, wherein the controller comprises one of: MOS switch tube and thyristor.
3. The line switch control system according to claim 1, wherein an AD module is disposed in the main control chip and configured to convert the line information of the controlled circuit collected by the monitoring device into a digital signal.
4. The line switch control system of claim 1, wherein the monitoring device comprises: a voltage monitor and/or a current monitor, the line information comprising: voltage data and/or current data.
5. The line switch control system of claim 4, wherein the voltage monitor is a resistor voltage division monitor and the current monitor is a low resistance sampling monitor.
6. The line switch control system of claim 4, wherein the master control chip comprises:
the voltage calculation circuit is used for determining the frequency of the control signal according to the voltage data of the controlled circuit;
and the current calculating circuit is used for adjusting the frequency of the control signal according to the real-time current data of the controlled circuit in the switching process.
7. The line switch control system of claim 1, wherein the master control chip comprises:
and the timing circuit is used for controlling the steady-state time of the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921152653.6U CN210404845U (en) | 2019-07-22 | 2019-07-22 | Circuit switch control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921152653.6U CN210404845U (en) | 2019-07-22 | 2019-07-22 | Circuit switch control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210404845U true CN210404845U (en) | 2020-04-24 |
Family
ID=70355771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921152653.6U Active CN210404845U (en) | 2019-07-22 | 2019-07-22 | Circuit switch control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210404845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323834A (en) * | 2019-07-22 | 2019-10-11 | 珠海格力电器股份有限公司 | line switch control system, method and device |
-
2019
- 2019-07-22 CN CN201921152653.6U patent/CN210404845U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323834A (en) * | 2019-07-22 | 2019-10-11 | 珠海格力电器股份有限公司 | line switch control system, method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102057555B (en) | Apparatus for minimizing standby power of switching-mode power supply | |
| CN109067353B (en) | Active bypass control device and method for photovoltaic module | |
| CN103676746A (en) | Control circuit of startup and shutdown machine and electronic equipment | |
| CN206452095U (en) | A kind of over under-voltage protection circuit and set top box | |
| CN110224660B (en) | Frequency converter control method | |
| CN103913626B (en) | A kind of AC dump warning circuit for preventing direct current input from alerting by mistake | |
| CN106533151B (en) | The control method and device of partial PFC circuit, household electrical appliance | |
| CN210404845U (en) | Circuit switch control system | |
| CN112415371A (en) | Intelligent control and online state monitoring device and method for alternating current contactor | |
| CN205126227U (en) | A auto awake -up device for electrocardio equipment | |
| CN208421767U (en) | Electronic equipment and its consumable can control circuit | |
| CN111494001B (en) | Medical equipment control circuit for generating plasma and plasma medical equipment | |
| CN108448538A (en) | A kind of overvoltage crowbar and its method | |
| CN104269837A (en) | Unplugging protection device | |
| CN104578377A (en) | Cabinet power supply system, power supply switching control method and cabinet | |
| CN107888063B (en) | A kind of output current peak coefficient method and device improving inverter | |
| CN103872885B (en) | A kind of standby power consumption control circuit and method | |
| CN102882203A (en) | Power transmission system, device and protection circuit with power supply protection function | |
| CN109633426A (en) | Switch detection method | |
| CN212726976U (en) | Display outage system and display | |
| CN213425778U (en) | Charging control system for electric vehicle charging device | |
| CN211351727U (en) | Electromagnetic field generating device | |
| CN211086518U (en) | Relay capable of detecting electric arc | |
| CN106655720B (en) | Power source drive device and laser power supply | |
| CN208459804U (en) | Control circuit and food processor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |