CN110780619B - Circuit control method, device and equipment - Google Patents
Circuit control method, device and equipment Download PDFInfo
- Publication number
- CN110780619B CN110780619B CN201910974470.0A CN201910974470A CN110780619B CN 110780619 B CN110780619 B CN 110780619B CN 201910974470 A CN201910974470 A CN 201910974470A CN 110780619 B CN110780619 B CN 110780619B
- Authority
- CN
- China
- Prior art keywords
- circuit
- electronic switch
- control signal
- control unit
- dynamic load
- 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
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
Abstract
The invention provides a circuit control method, a device and equipment; wherein, the method comprises the following steps: sending a first control signal to an electronic switch in the circuit through a first control unit, wherein the first control signal is used for controlling the state of the electronic switch to be on or off; and sending a second control signal to a dynamic load of the circuit through a second control unit according to the state of the electronic switch, wherein the second control signal is used for controlling the dynamic load to be connected into or out of the circuit. The invention solves the problem that the output end is falsely turned off due to leakage current after the electronic switch is turned off in the related technology, so that the output end has voltage.
Description
Technical Field
The invention relates to the field of circuits, in particular to a circuit control method, a circuit control device and circuit control equipment.
Background
The development of energy internet is more and more strong, and the types and the number of devices to be controlled are more and more. The traditional mechanical switch is not suitable for integration and installation due to the large volume. The electronic switch not only can realize the switching function, but also can save a large installation space. However, compared with a mechanical switch, an electronic switch is not a physical switch, and junction capacitance exists at the switch control end of a common electronic switch such as a MOS (metal oxide semiconductor) or a thyristor due to the characteristics of an electronic device. When the electronic switch is used in the energy internet industry and under the condition of coexistence of alternating current and direct current, leakage current exists after the electronic switch is turned off, so that the electronic switch cannot be turned off completely.
In view of the above problems in the related art, no effective solution exists at present.
Disclosure of Invention
The embodiment of the invention provides a circuit control method, a circuit control device and circuit control equipment, which are used for at least solving the problems that false turn-off of an output end can be caused by leakage current after an electronic switch is turned off in the related art, and further voltage exists at the output end.
According to an embodiment of the present invention, there is provided a control method of a circuit, including: sending a first control signal to an electronic switch in the circuit through a first control unit, wherein the first control signal is used for controlling the state of the electronic switch to be on or off; and sending a second control signal to a dynamic load of the circuit through a second control unit according to the state of the electronic switch, wherein the second control signal is used for controlling the dynamic load to be connected into or out of the circuit.
According to another embodiment of the present invention, there is provided a control apparatus of a circuit including: the first sending module is used for sending a first control signal to an electronic switch in the circuit through a first control unit, wherein the first control signal is used for controlling the state of the electronic switch to be on or off; and the second sending module is used for sending a second control signal to the dynamic load of the circuit through a second control unit according to the state of the electronic switch, wherein the second control signal is used for controlling the dynamic load to be connected into or out of the circuit.
According to another embodiment of the present invention, there is provided an apparatus including: a switching circuit, a first control unit and a second control unit; the switching circuit comprises an electronic switch and a dynamic load, wherein the electronic switch and the dynamic load are connected to the output end and the input end of a power supply; the first control unit is used for sending a first control signal to an electronic switch in the circuit, wherein the first control signal is used for controlling the state of the electronic switch to be on or off; and the second control unit is used for sending a second control signal to the dynamic load of the circuit according to the state of the electronic switch, wherein the second control signal is used for controlling the dynamic load to be connected into or out of the circuit.
According to the invention, the first control unit is used for sending a first control signal to the electronic switch in the circuit, wherein the first control signal is used for controlling the state of the electronic switch to be on or off, and then the second control unit is used for sending a second control signal to the dynamic load of the circuit according to the state of the electronic switch, wherein the second control signal is used for controlling the dynamic load to be connected into or out of the circuit, so that the dynamic load can be connected into or out of the circuit, the virtual voltage existing on the output side is eliminated, and the problems that the output end is falsely switched off and further the voltage exists on the output end due to the leakage current existing after the electronic switch is switched off are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of a method of controlling a circuit according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a circuit configuration according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a circuit configuration when an electronic switch is turned on according to an embodiment of the invention;
FIG. 4 is a schematic diagram of the circuit configuration when the electronic switch is turned off according to an embodiment of the present invention;
fig. 5 is a block diagram of a control device of a circuit according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Example 1
In the present embodiment, a control method of a circuit is provided, and fig. 1 is a flowchart of the control method of the circuit according to the embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:
step S102, a first control signal is sent to an electronic switch in the circuit through a first control unit, wherein the first control signal is used for controlling the state of the electronic switch to be on or off;
and step S104, sending a second control signal to the dynamic load of the circuit through the second control unit according to the state of the electronic switch, wherein the second control signal is used for controlling the dynamic load to be connected into or out of the circuit.
Through the steps S102 to S104, a first control signal is sent to the electronic switch in the circuit through the first control unit, where the first control signal is used to control the state of the electronic switch to be on or off, and then a second control signal is sent to the dynamic load of the circuit through the second control unit according to the state of the electronic switch, where the second control signal is used to control the dynamic load to be connected into or out of the circuit, so that the dynamic load can be connected into or out of the circuit, a virtual voltage existing on the output side is eliminated, and a problem that a false turn-off occurs at the output end due to a leakage current existing after the electronic switch is turned off, and then a voltage exists at the output end is solved.
It should be noted that the electronic switch referred to in this embodiment may be a thyristor, a MOS transistor, or the like.
In an alternative implementation manner of this embodiment, the manner of sending the first control signal to the electronic switch in the circuit through the first control unit involved in step S102 of this embodiment may be: a first control signal for controlling the state of the electronic switch to be conductive is sent to the electronic switch in the circuit through the first control unit. Based on this, when the state of the electronic switch is on, the manner of sending the second control signal to the dynamic load of the circuit according to the state of the electronic switch by the second control unit in step S104 of the present embodiment may be: and sending a second control signal for controlling the dynamic load to be connected out of the circuit to the dynamic load of the circuit through a second control unit.
That is, when the electronic switch is turned on, the dynamic load tapping circuit can be controlled to avoid waste of redundant power consumption.
In another optional implementation manner of this embodiment, the manner of sending the first control signal to the electronic switch in the circuit through the first control unit involved in step S102 may be: a first control signal for controlling the state of the electronic switch to be off is sent to the electronic switch in the circuit through the first control unit. Based on this, in the case that the state of the electronic switch is off, the manner of sending the second control signal to the dynamic load of the circuit according to the state of the electronic switch through the second control unit involved in step S104 may be: and sending a second control signal for controlling the dynamic load to access the circuit to the dynamic load of the circuit through a second control unit.
That is to say, under the condition that the electronic switch is turned off, the dynamic load can be controlled to be connected into the circuit, the virtual voltage existing on the output side is eliminated, and the electricity safety problem is avoided.
The present application will be illustrated with reference to alternative embodiments of the present embodiment;
the alternative embodiment provides a schematic diagram of a dynamic load of a switch control circuit, as shown in fig. 2, the circuit includes an electronic switch, a dynamic load, a control unit 1 for controlling the electronic switch, and a control unit 2 for controlling the dynamic load.
The electronic switch is connected to the power output end and the input end, is used for controlling the circuit to be switched on and off, and can be an MOS (metal oxide semiconductor) tube, a thyristor, an optocoupler and other electronic devices.
The control unit 1 is used for controlling the on and off states of the electronic switch, and the control unit 1 can be composed of an MCU and a driving circuit and provides a switching signal for the electronic switch to realize the on and off;
the control unit 2 is used for controlling the access and the exit of the dynamic load.
When the control unit 1 sends a turn-on signal to the electronic switch, the control unit 2 sends a control signal to the dynamic load, and the dynamic load is connected out of the output end, as shown in fig. 3. Otherwise, the electronic load is connected to the output end as shown in fig. 4.
It should be noted that the control unit 2 may be controlled by the control unit 1, and may also automatically detect the state of the control unit 1 or detect the state of the output terminal to perform self-determination on whether to turn on the dynamic load. The dynamic load controlled by the control unit 2 is connected to the output end and consists of a switch and a load, wherein the switch can be a relay, a triode and an MOS (metal oxide semiconductor) tube; the load can be a resistor, a capacitor or an inductor. The switch is used for receiving the signal of the control unit 2 and executing the access and the output of the load, and the load plays the roles of blocking leakage current and eliminating the voltage of an output end when the electronic switch is turned off.
Through the control to the dynamic load, when the electronic switch is opened, the dynamic load is not connected into the output loop, and the waste of redundant power consumption is avoided. When the electronic switch is closed, the dynamic load is automatically connected to the output loop, so that the virtual voltage existing on the output side is eliminated, and the electricity safety problem is avoided.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Example 2
In this embodiment, a control device of a circuit is further provided, and the device is used to implement the above embodiments and preferred embodiments, and the description of the device that has been already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 5 is a block diagram of a control apparatus of a circuit according to an embodiment of the present invention, as shown in fig. 5, the apparatus including: a first sending module 52, configured to send a first control signal to an electronic switch in the circuit through a first control unit, where the first control signal is used to control a state of the electronic switch to be on or off; and a second sending module 54, configured to send a second control signal to the dynamic load of the circuit according to the state of the electronic switch through a second control unit, where the second control signal is used to control the dynamic load to be connected to or disconnected from the circuit.
Optionally, the first sending module 52 in this embodiment is further configured to send, to the electronic switch in the circuit, a first control signal for controlling the state of the electronic switch to be on through the first control unit. Based on this, the second sending module 54 is further configured to send a second control signal for controlling the dynamic load tapping circuit to the dynamic load of the circuit through the second control unit.
Optionally, the first sending module 52 in this embodiment is further configured to send, to the electronic switch in the circuit, a first control signal for controlling the state of the electronic switch to be off through the first control unit. Based on this, the second sending module 54 is further configured to send a second control signal for controlling the dynamic load access circuit to the dynamic load of the circuit through the second control unit.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A method of controlling a circuit, comprising:
sending a first control signal to an electronic switch in the circuit through a first control unit, wherein the first control signal is used for controlling the state of the electronic switch to be on or off; which comprises the following steps: sending a first control signal for controlling the state of an electronic switch in the circuit to be conductive to the electronic switch through the first control unit;
sending a second control signal to a dynamic load of the circuit through a second control unit according to the state of the electronic switch, wherein the second control signal is used for controlling the dynamic load to be connected into or out of the circuit; which comprises the following steps: and sending a second control signal for controlling the dynamic load to be connected out of the circuit to the dynamic load of the circuit through the second control unit.
2. The method of claim 1, wherein sending a first control signal to an electronic switch in the circuit via a first control unit comprises:
and sending a first control signal for controlling the state of the electronic switch to be off to the electronic switch in the circuit through the first control unit.
3. The method of claim 2, wherein sending a second control signal to a dynamic load of the circuit according to the state of the electronic switch by a second control unit comprises:
and sending a second control signal for controlling the dynamic load to access the circuit to the dynamic load of the circuit through the second control unit.
4. A control apparatus for an electrical circuit, comprising:
the first sending module is used for sending a first control signal to an electronic switch in the circuit through a first control unit, wherein the first control signal is used for controlling the state of the electronic switch to be on or off; the first sending module is further configured to send a first control signal for controlling the electronic switch to be turned on to the electronic switch in the circuit through the first control unit;
the second sending module is used for sending a second control signal to the dynamic load of the circuit through a second control unit according to the state of the electronic switch, wherein the second control signal is used for controlling the dynamic load to be connected into or connected out of the circuit; the second sending module is further configured to send, to the dynamic load of the circuit through the second control unit, a second control signal for controlling the dynamic load to be connected to or disconnected from the circuit.
5. The apparatus of claim 4,
the first sending module is further configured to send a first control signal for controlling the electronic switch to be turned off to the electronic switch in the circuit through the first control unit.
6. The apparatus of claim 5,
the second sending module is further configured to send, to the dynamic load of the circuit through the second control unit, a second control signal for controlling the dynamic load to access the circuit.
7. An apparatus, comprising: a switching circuit, a first control unit and a second control unit; the switching circuit comprises an electronic switch and a dynamic load, wherein the electronic switch and the dynamic load are connected to the output end and the input end of a power supply;
the first control unit is used for sending a first control signal to an electronic switch in the circuit, wherein the first control signal is used for controlling the state of the electronic switch to be on or off;
the second control unit is configured to send a second control signal to a dynamic load of the circuit according to a state of the electronic switch, where the second control signal is used to control the dynamic load to be connected to or disconnected from the circuit;
the first control unit is used for sending a first control signal for controlling the state of an electronic switch in the circuit to be on to the electronic switch; the second control unit is configured to send a second control signal to a dynamic load of the circuit, where the second control signal is used to control the dynamic load to be connected to or disconnected from the circuit.
8. The apparatus of claim 7,
the first control unit is used for sending a first control signal for controlling the state of an electronic switch in the circuit to be off to the electronic switch;
the second control unit is configured to send a second control signal for controlling the dynamic load to access the circuit to a dynamic load of the circuit.
9. The apparatus of claim 7, wherein the electronic switch is one of: MOS tube, thyristor, optical coupler.
10. The apparatus of claim 7, wherein the first control unit and the second control unit comprise: a micro control unit MCU and a drive circuit.
11. The apparatus of claim 7, wherein the dynamic load comprises: a switch and a load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910974470.0A CN110780619B (en) | 2019-10-14 | 2019-10-14 | Circuit control method, device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910974470.0A CN110780619B (en) | 2019-10-14 | 2019-10-14 | Circuit control method, device and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110780619A CN110780619A (en) | 2020-02-11 |
| CN110780619B true CN110780619B (en) | 2020-12-25 |
Family
ID=69386169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910974470.0A Active CN110780619B (en) | 2019-10-14 | 2019-10-14 | Circuit control method, device and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110780619B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954798B (en) * | 2020-02-25 | 2020-06-23 | 深圳市永联科技股份有限公司 | Insulation detection starting judgment method and circuit for off-board charger |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005033900A (en) * | 2003-07-10 | 2005-02-03 | Fuji Heavy Ind Ltd | Switching device of electrical circuit |
| JP4597044B2 (en) * | 2005-12-09 | 2010-12-15 | 株式会社リコー | Backflow prevention circuit |
| CN101702850B (en) * | 2009-10-27 | 2013-06-05 | 嘉力时灯光设备(东莞)有限公司 | Circuit and method for switching off load of controlled silicon |
| CN101820274A (en) * | 2010-04-20 | 2010-09-01 | 武汉星火投资咨询中心（普通合伙） | Sparkless safety switch, socket and safe power on/off method |
| CN103631163B (en) * | 2013-11-22 | 2016-01-06 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of on-off circuit of AC power |
| CN103779833B (en) * | 2014-02-21 | 2016-08-17 | 朱志伟 | DC leakage current detection and protection circuit and detection and guard method |
| CN206117499U (en) * | 2016-10-20 | 2017-04-19 | 广州金升阳科技有限公司 | Start circuit |
| WO2019176077A1 (en) * | 2018-03-16 | 2019-09-19 | 新電元工業株式会社 | Semiconductor switch control circuit and switching power supply device |
| CN109286237B (en) * | 2018-11-12 | 2024-03-22 | 艾体威尔电子技术(北京)有限公司 | Circuit for controlling low-power-consumption backup battery to be connected or disconnected |
-
2019
- 2019-10-14 CN CN201910974470.0A patent/CN110780619B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110780619A (en) | 2020-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210141432A1 (en) | System for Transmitting Power to a Remote PoE Subsystem by forwarding PD Input Voltage | |
| CN105718337A (en) | FPGA-based system and method for automatically detecting and switching master and standby board cards in place | |
| CN103630832B (en) | A kind of power electronic equipment breaker in middle part startup self-detection method and device | |
| EP4239822A1 (en) | Power supply system, slow-start circuit, and control method | |
| US20140077603A1 (en) | Power supply apparatus with power backup mechanism | |
| CN107070668B (en) | Power supply circuit | |
| CN103959648A (en) | Charge-saving power-gate apparatus and method | |
| CN110780619B (en) | Circuit control method, device and equipment | |
| CN109062392A (en) | It is a kind of to automatically switch equipment, the method and system that server board is powered | |
| CN110970264B (en) | Relay drive circuit, method, device, storage medium, and electronic device | |
| CN110011654B (en) | Power domain switch control circuit, method and chip | |
| CN115580375B (en) | Signal transmission circuit and control method | |
| CN108832695B (en) | Direct-current microgrid system, charging circuit and control method thereof | |
| CN104570774A (en) | Method and system for powering on and off multiple electrical units | |
| CN110896225A (en) | Method and device for online putting third station of multi-terminal direct-current power transmission system into operation and storage medium | |
| CN112701913A (en) | Boost power conversion circuit and control method and application device thereof | |
| CN114825594A (en) | Control method and control device of uninterruptible power supply | |
| JPH03123234A (en) | Access unit for local area network | |
| CN104730371A (en) | Testing method, circuit, device and system for household appliances | |
| CN107479611A (en) | A kind of communication equipment and electrification control method | |
| CN105245840A (en) | Data forwarding method and device and camera | |
| US9575530B2 (en) | Board, communications device, and method for supplying power for board | |
| CN211349293U (en) | Dual-power control circuit of low-power consumption mainboard | |
| CN109687712A (en) | DC-DC device, control method for micro- mixed controller | |
| CN216216045U (en) | Voltage drop compensation circuit and power supply equipment generated by eliminating power supply output lead wire resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |