CN112783031A - Soft instruction starting control and level signal isolation circuit system - Google Patents
Soft instruction starting control and level signal isolation circuit system Download PDFInfo
- Publication number
- CN112783031A CN112783031A CN202011607698.5A CN202011607698A CN112783031A CN 112783031 A CN112783031 A CN 112783031A CN 202011607698 A CN202011607698 A CN 202011607698A CN 112783031 A CN112783031 A CN 112783031A
- Authority
- CN
- China
- Prior art keywords
- signal
- chip
- differential
- level
- power
- 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.)
- Granted
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 47
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/0185—Coupling arrangements; Interface arrangements using field effect transistors only
-
- 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
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Logic Circuits (AREA)
- Power Sources (AREA)
Abstract
本发明涉及电子技术领域，具体涉及一种软指令开机控制及电平信号隔离电路系统，包括：接口DSP、电源转换模块、驱动继电器、电磁继电器、电压转换芯片、差分接收芯片及差分发送芯片。该电路系统将电信号通过差分芯片转为差分信号，然后利用接口DSP对差分芯片使能信号进行控制。接通母线电源后，接口DSP处于上电工作状态，利用差分芯片使能控制信号将差分芯片置为非使能状态，此时差分芯片输出信号为高阻状态，相当于断路，在与接口DSP连接的芯片存在的I/O接口、SPI接口及SCI接口等管脚不会耦合出电压。当接口DSP接收到开机指令后，首先控制电磁继电器闭合，完成系统上电，然后将差分芯片置于使能状态，实现与信号存在电平连接的芯片间的电平信号收发。
The invention relates to the field of electronic technology, in particular to a soft command boot control and level signal isolation circuit system, comprising: an interface DSP, a power conversion module, a driving relay, an electromagnetic relay, a voltage conversion chip, a differential receiving chip and a differential sending chip. The circuit system converts electrical signals into differential signals through the differential chip, and then uses the interface DSP to control the enable signal of the differential chip. After the bus power is turned on, the interface DSP is in the power-on working state, and the differential chip is set to a non-enable state by using the differential chip enable control signal. At this time, the output signal of the differential chip is in a high-impedance state, which is equivalent to an open circuit. The pins of the I/O interface, SPI interface and SCI interface of the connected chip will not be coupled with voltage. When the interface DSP receives the power-on command, it first controls the electromagnetic relay to close, completes the power-on of the system, and then puts the differential chip in the enabled state to realize the level signal transmission and reception between the chips that are level-connected with the signal.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a soft instruction starting control and level signal isolation circuit system.
Background
The system startup control can be realized by a mechanical switch or a software instruction. The software instruction mode is more flexible, and the system startup control can be remotely realized through software interface operation. When the control circuit based on the DSP adopts software instructions to realize the startup control of the system, after the bus power supply is switched on by the system, the DSP of the interface is electrified to work, other circuits are not electrified, and the system is in a non-startup state. And the interface DSP receives and analyzes the control instruction sent by the upper computer through the SCI serial port, and after the start-up instruction is received, the interface DSP controls the relay to switch on the power supply to complete the start-up and electrification of the whole system.
However, when the interface DSP is powered on, a voltage of about 1V is coupled out from corresponding pins connected based on TTL level signals, such as I/O, SPI, and SCI, between the interface DSP and other chips of the system, and the coupled voltage will directly act on the unpowered chip. After the control system is connected with a bus power supply and before a starting-up instruction is not received, a chip which is in electrical signal connection with the interface DSP is under the action of coupling voltage, and the coupling voltage is in a charged state at a pin corresponding to the plug, so that potential safety hazards are brought to plugging and unplugging of the plug.
Therefore, it is highly desirable to isolate the undesired coupling voltage during the software boot control process, so that the whole boot process has higher flexibility, safety and stability.
Disclosure of Invention
The embodiment of the invention provides a soft instruction starting control and level signal isolation circuit system, which at least solves the technical problem that a chip electrically connected with an interface DSP in the existing soft instruction starting control system is acted by coupling voltage.
According to an embodiment of the present invention, a soft command boot control and level signal isolation circuit system is provided, including: the device comprises an interface DSP, a power supply conversion module, a driving relay, an electromagnetic relay, a voltage conversion chip, a differential receiving chip and a differential sending chip; wherein:
the interface DSP sets an enabling control signal as a non-enabling signal, the non-enabling signal is converted into a low-level signal by the voltage conversion chip and then acts on the differential sending chip and the differential receiving chip to enable the differential sending chip and the differential receiving chip to be in a non-enabling state, and at the moment, output signals of the differential sending chip and the differential receiving chip are in a high impedance state;
after receiving a starting instruction of an upper computer, the interface DSP sets the power-on control signal as a high-level signal, the power-on control signal is converted into the high-level signal by the voltage conversion chip to drive the relay to be closed, the electromagnetic relay is attracted after being powered on, and the circuit system is powered on and started; meanwhile, the DSP sets the enable control signal as an enable level signal, the enable control signal is converted into a high level signal through the voltage conversion chip, and the differential sending chip and the differential receiving chip are in an enable state at the moment, so that correct receiving of the 1-path receiving signal and correct sending of the 1-path sending signal are realized.
Further, after the circuit system is connected with the bus power supply, the bus power supply is converted into working digital voltage of the interface DSP by the power supply conversion module, and the interface DSP is electrified and started; the interface DSP sets the power-on control signal as a low level signal, and the power-on control signal is converted into the low level signal through the voltage conversion chip; the driving relay is in a disconnected state when the power-on control signal is low, the electromagnetic relay is not powered on at the moment, and the circuit system is in a shutdown state.
Furthermore, the interface DSP sets the power-on control signal as a low-level 0V signal, and the power-on control signal is converted into the low-level 0V signal through the voltage conversion chip.
Furthermore, the interface DSP sets the enable control signal to be the disable low-level 0V signal, and the disable low-level 0V signal is converted into a low-level signal by the voltage conversion chip and then acts on the differential transmitting chip and the differential receiving chip to make them in a non-enable state.
Furthermore, when the output signals of the differential transmitting chip and the differential receiving chip are in a high impedance state, voltage cannot be coupled out of the digital power supply pin of the differential output receiving end chip, and effective isolation of level signals is achieved.
Furthermore, after the interface DSP receives a starting instruction of the upper computer, the power-on control signal is set to be a high-level 3.3V signal, the power-on control signal is converted into a high-level 5V signal through the voltage conversion chip to drive the relay to be closed, the electromagnetic relay is attracted after being powered on, and the circuit system is powered on and started.
Furthermore, the interface DSP sets the enable control signal to be an enable level 3.3V signal, the enable control signal is converted into a high level 5V signal by the voltage conversion chip, and the differential sending chip and the differential receiving chip are in an enable state at this time.
Further, the DSP interface receives and analyzes the starting instruction sent by the upper computer by adopting an SCI serial port.
Further, the interface DSP controls the driving relay switch by using the IO level signal.
Further, the power conversion module is a DC-DC power conversion module.
The soft instruction starting control and level signal isolation circuit system converts an electric signal into a differential signal through a differential chip, and then controls an enabling signal of the differential chip by using an interface DSP. After the bus power supply is switched on, the interface DSP is in a power-on working state, the differential chip is set to be in a non-enabling state by utilizing the enabling control signal of the differential chip, the output signal of the differential chip is in a high-resistance state at the moment, namely, an open circuit is formed, and voltage cannot be coupled at pins such as an I/O interface, an SPI interface and an SCI interface of the chip connected with the interface DSP. After the interface DSP receives a starting instruction, the electromagnetic relay is controlled to be closed firstly to complete system electrification, and then the differential chip is placed in an enabling state to realize level signal receiving and transmitting between chips connected with the signal level.
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 circuit diagram of a soft command power-on control and level signal isolation circuit system according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an embodiment of the present invention, there is provided a soft instruction power-on control and level signal isolation circuit system, referring to fig. 1, including: the device comprises an interface DSP, a power supply conversion module, a driving relay, an electromagnetic relay, a voltage conversion chip, a differential receiving chip and a differential sending chip; wherein:
the interface DSP sets an enabling control signal as a non-enabling signal, the non-enabling signal is converted into a low-level signal by the voltage conversion chip and then acts on the differential sending chip and the differential receiving chip to enable the differential sending chip and the differential receiving chip to be in a non-enabling state, and at the moment, output signals of the differential sending chip and the differential receiving chip are in a high impedance state;
after receiving a starting instruction of an upper computer, the interface DSP sets the power-on control signal as a high-level signal, the power-on control signal is converted into the high-level signal by the voltage conversion chip to drive the relay to be closed, the electromagnetic relay is attracted after being powered on, and the circuit system is powered on and started; meanwhile, the DSP sets the enable control signal as an enable level signal, the enable control signal is converted into a high level signal through the voltage conversion chip, and the differential sending chip and the differential receiving chip are in an enable state at the moment, so that correct receiving of the 1-path receiving signal and correct sending of the 1-path sending signal are realized.
The soft instruction starting control and level signal isolation circuit system converts an electric signal into a differential signal through a differential chip, and then controls an enabling signal of the differential chip by using an interface DSP. After the bus power supply is switched on, the interface DSP is in a power-on working state, the differential chip is set to be in a non-enabling state by utilizing the enabling control signal of the differential chip, the output signal of the differential chip is in a high-resistance state at the moment, namely, an open circuit is formed, and voltage cannot be coupled at pins such as an I/O interface, an SPI interface and an SCI interface of the chip connected with the interface DSP. After the interface DSP receives a starting instruction, the electromagnetic relay is controlled to be closed firstly to complete system electrification, and then the differential chip is placed in an enabling state to realize level signal receiving and transmitting between chips connected with the signal level.
After the circuit system is connected with a bus power supply, the bus power supply is converted into working digital voltage of an interface DSP by a power supply conversion module, and the interface DSP is electrified and started; the interface DSP sets the power-on control signal as a low level signal, and the power-on control signal is converted into the low level signal through the voltage conversion chip; the driving relay is in a disconnected state when the power-on control signal is low, the electromagnetic relay is not powered on at the moment, and the circuit system is in a shutdown state.
The interface DSP sets the power-on control signal as a low-level 0V signal, and the power-on control signal is converted into the low-level 0V signal through the voltage conversion chip.
The interface DSP sets the enable control signal as a disable low-level 0V signal, and the disable low-level 0V signal is converted into a low-level signal by the voltage conversion chip and then acts on the differential sending chip and the differential receiving chip to enable the differential sending chip and the differential receiving chip to be in a non-enable state.
When the output signals of the differential transmitting chip and the differential receiving chip are in a high impedance state, voltage cannot be coupled out of the digital power supply pin of the receiving end chip of the differential output, and effective isolation of level signals is achieved.
After receiving a starting instruction of the upper computer, the interface DSP sets the power-on control signal to be a high-level 3.3V signal, the power-on control signal is converted into a high-level 5V signal through the voltage conversion chip to drive the relay to be closed, the electromagnetic relay is attracted after being powered on, and the circuit system is powered on and started.
The interface DSP sets the enabling control signal to be an enabling level 3.3V signal, the enabling control signal is converted into a high level 5V signal through the voltage conversion chip, and the differential sending chip and the differential receiving chip are in an enabling state at the moment.
The DSP interface receives and analyzes the starting instruction sent by the upper computer by the SCI.
Wherein, the interface DSP utilizes IO level signal control drive relay switch.
The power supply conversion module is a DC-DC power supply conversion module.
The following describes the soft command power-on control and level signal isolation circuit system according to the present invention in detail with specific embodiments:
the embodiment of the invention provides a soft instruction starting control and level signal isolation circuit system, which is used for realizing soft starting control and isolating unexpected coupling voltage at the same time and ensuring the safety and stability of the system.
The embodiment of the invention provides a software instruction starting control and level signal isolation circuit system, which is characterized in that on one hand, the circuit system receives and analyzes a control instruction sent by an upper computer through an interface DSP by adopting an SCI (serial communication interface) serial port, and further controls a driving relay to switch on a power supply to realize the soft starting of the whole system. On the other hand, the circuit system controls the output state of the differential chip through the enable control signal, and effective isolation of the level signal is achieved. The starting mode of the circuit system has higher flexibility, safety and stability.
Specifically, on one hand, the circuit system receives a software startup control instruction of an upper computer through an SCI (serial interface) serial port, controls a driving relay switch by using an IO (input/output) level signal, and controls the electromagnetic relay switch for supplying power through a driving relay control system to realize system startup control. On the other hand, the embodiment of the invention provides a level signal isolation circuit, which aims at the problem that after the DSP is electrified, the voltage is coupled out from the corresponding pin of the chip which is connected with the DSP through level signals such as an I/O interface, an SPI interface, an SCI interface and the like. Firstly, the electric signal is converted into a differential signal through a differential chip, and then an enabling signal of the differential chip is controlled by using an interface DSP. After the bus power supply is switched on, the interface DSP is in a power-on working state, the differential chip is set to be in a non-enabling state by utilizing the enabling control signal of the differential chip, the output signal of the differential chip is in a high-resistance state at the moment, namely, an open circuit is formed, and voltage cannot be coupled at pins such as an I/O interface, an SPI interface and an SCI interface of the chip connected with the interface DSP. After the interface DSP receives a starting instruction, the IO signal is used for controlling the electromagnetic relay to be closed to complete system electrification, and then the differential chip is placed in an enabling state to realize level signal receiving and sending between the chips connected with the signal level.
Fig. 1 is a schematic diagram of a soft instruction power-on control and level signal isolation circuit system according to the present embodiment.
Referring to fig. 1, fig. 1 is a circuit system for soft instruction power-on control and level signal isolation according to an embodiment of the present invention. The circuit system is composed of an interface DSP, a DC-DC power supply conversion module, a driving relay, an electromagnetic relay, a voltage conversion chip, a differential receiving chip and a differential sending chip.
And after the system bus power supply is switched on, the DC-DC power supply conversion module converts the bus power supply into the working digital voltage of the interface DSP, and the interface DSP is electrified and started. The interface DSP sets the power-on control signal as a low-level 0V signal, and the power-on control signal is converted into the low-level 0V signal through the voltage conversion chip. The driving relay is in a disconnected state when the power-on control signal is low, the electromagnetic attraction coil of the electromagnetic relay is not powered on at the moment, and the system is in a shutdown state.
The interface DSP sets the enabling control signal as a non-enabling low-level 0V signal, the non-enabling signal is converted into a low-level 0V signal through the voltage conversion chip and then acts on the differential sending chip and the differential receiving chip to enable the differential sending chip and the differential receiving chip to be in a non-enabling state, at the moment, an output signal of the differential chip (including the differential sending chip and the differential receiving chip) is in a high-impedance state, voltage cannot be coupled out of a digital power supply pin of a receiving end chip for differential output, and effective isolation of level signals is achieved.
After receiving a starting instruction of the upper computer, the interface DSP sets the power-on control signal to be a high-level 3.3V signal, the power-on control signal is converted into a high-level 5V signal through the voltage conversion chip to drive the relay to be closed, the electromagnetic coil of the electromagnetic relay is attracted after being powered on, and the system is powered on and started. Meanwhile, the interface DSP sets the enabling control signal as an enabling level 3.3V signal, the enabling control signal is converted into a high level 5V signal through the voltage conversion chip, and the differential sending chip and the differential receiving chip are in an enabling state at the moment, so that correct receiving of the 1-path receiving signal and correct sending of the 1-path sending signal are realized.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described system embodiments are merely illustrative, and for example, a division of a unit may be a logical division, and an actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011607698.5A CN112783031B (en) | 2020-12-30 | 2020-12-30 | A soft command boot control and level signal isolation circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011607698.5A CN112783031B (en) | 2020-12-30 | 2020-12-30 | A soft command boot control and level signal isolation circuit system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112783031A true CN112783031A (en) | 2021-05-11 |
| CN112783031B CN112783031B (en) | 2021-12-17 |
Family
ID=75753433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011607698.5A Active CN112783031B (en) | 2020-12-30 | 2020-12-30 | A soft command boot control and level signal isolation circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112783031B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116149758A (en) * | 2023-04-18 | 2023-05-23 | 深圳魔视智能科技有限公司 | Chip starting configuration system |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101291031A (en) * | 2008-05-30 | 2008-10-22 | 北京意科通信技术有限责任公司 | Energy conservative monitoring plug |
| CN101951217A (en) * | 2010-08-13 | 2011-01-19 | 株洲南车时代电气股份有限公司 | Diesel locomotive auxiliary engine control device |
| CN102236334A (en) * | 2011-05-08 | 2011-11-09 | 肇庆市志成气动有限公司 | Digital pressure switch |
| CN102590811A (en) * | 2012-01-13 | 2012-07-18 | 西安电子科技大学 | Small FMCW-based (frequency modulated continuous wave) SAR (synthetic aperture radar) imaging system by using FPGA (field programmable gate array) |
| CN102971963A (en) * | 2010-02-05 | 2013-03-13 | 莱克桑德电子研究公司 | Method and arrangement for driving a microphone |
| CN203102385U (en) * | 2012-12-27 | 2013-07-31 | 深圳市金溢科技有限公司 | Radio frequency (RF) transmit-receive device, road side unit, ETC (Electronic Toll Collection) and intelligent parking lot management system |
| CN103713530A (en) * | 2013-12-09 | 2014-04-09 | 沈阳创新设计服务有限公司 | Power failure protection system of production line |
| CN105094263A (en) * | 2015-08-14 | 2015-11-25 | 浪潮软件集团有限公司 | Startup and shutdown linkage control device and system |
| US20160182039A1 (en) * | 2014-12-19 | 2016-06-23 | Monolithic Power Systems, Inc. | Smart switch for connecting an input power supply to a load |
| CN107664969A (en) * | 2017-09-05 | 2018-02-06 | 普联技术有限公司 | The control method that intelligent double-control switchs and control system and control system work |
| CN108322034A (en) * | 2018-01-26 | 2018-07-24 | 郑州云海信息技术有限公司 | A kind of soft starting device and method of Switching Power Supply |
| US10082842B1 (en) * | 2017-08-10 | 2018-09-25 | Super Micro Computer, Inc. | Hot swapping technique for expansion cards |
| CN109067159A (en) * | 2018-09-14 | 2018-12-21 | 上海南芯半导体科技有限公司 | A kind of soft start controller and load switching device of load switching device |
| CN109807435A (en) * | 2018-12-28 | 2019-05-28 | 上海沪工焊接集团股份有限公司 | Inverter type welder and its protection control circuit |
| CN110221672A (en) * | 2019-05-07 | 2019-09-10 | 六安市同心畅能电子科技有限公司 | A kind of computer power Zero consumption standby circuit with remote-controlled start-up |
| CN110543208A (en) * | 2019-09-19 | 2019-12-06 | 中国科学院长春光学精密机械与物理研究所 | Power supply and power stage integrated circuit, cantilever three-axis stable tracking platform system |
| CN111200363A (en) * | 2018-11-19 | 2020-05-26 | 深南电路股份有限公司 | Switching power supply and electronic device |
| CN111751721A (en) * | 2020-06-08 | 2020-10-09 | 国网江西省电力有限公司电力科学研究院 | A kind of inductive load startup protection method and device |
| CN211740560U (en) * | 2020-04-07 | 2020-10-23 | 安徽皖仪科技股份有限公司 | Power-on self-checking system of spectrophotometer |
| CN111835191A (en) * | 2020-08-10 | 2020-10-27 | 上海川土微电子有限公司 | Soft start circuit and soft start method for isolating DC-DC power supply chip |
| US10838407B2 (en) * | 2015-05-18 | 2020-11-17 | Milwaukee Electric Tool Corporation | User interface for tool configuration and data capture |
-
2020
- 2020-12-30 CN CN202011607698.5A patent/CN112783031B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101291031A (en) * | 2008-05-30 | 2008-10-22 | 北京意科通信技术有限责任公司 | Energy conservative monitoring plug |
| CN102971963A (en) * | 2010-02-05 | 2013-03-13 | 莱克桑德电子研究公司 | Method and arrangement for driving a microphone |
| CN101951217A (en) * | 2010-08-13 | 2011-01-19 | 株洲南车时代电气股份有限公司 | Diesel locomotive auxiliary engine control device |
| CN102236334A (en) * | 2011-05-08 | 2011-11-09 | 肇庆市志成气动有限公司 | Digital pressure switch |
| CN102590811A (en) * | 2012-01-13 | 2012-07-18 | 西安电子科技大学 | Small FMCW-based (frequency modulated continuous wave) SAR (synthetic aperture radar) imaging system by using FPGA (field programmable gate array) |
| CN203102385U (en) * | 2012-12-27 | 2013-07-31 | 深圳市金溢科技有限公司 | Radio frequency (RF) transmit-receive device, road side unit, ETC (Electronic Toll Collection) and intelligent parking lot management system |
| CN103713530A (en) * | 2013-12-09 | 2014-04-09 | 沈阳创新设计服务有限公司 | Power failure protection system of production line |
| US20160182039A1 (en) * | 2014-12-19 | 2016-06-23 | Monolithic Power Systems, Inc. | Smart switch for connecting an input power supply to a load |
| US10838407B2 (en) * | 2015-05-18 | 2020-11-17 | Milwaukee Electric Tool Corporation | User interface for tool configuration and data capture |
| CN105094263A (en) * | 2015-08-14 | 2015-11-25 | 浪潮软件集团有限公司 | Startup and shutdown linkage control device and system |
| US10082842B1 (en) * | 2017-08-10 | 2018-09-25 | Super Micro Computer, Inc. | Hot swapping technique for expansion cards |
| CN107664969A (en) * | 2017-09-05 | 2018-02-06 | 普联技术有限公司 | The control method that intelligent double-control switchs and control system and control system work |
| CN108322034A (en) * | 2018-01-26 | 2018-07-24 | 郑州云海信息技术有限公司 | A kind of soft starting device and method of Switching Power Supply |
| CN109067159A (en) * | 2018-09-14 | 2018-12-21 | 上海南芯半导体科技有限公司 | A kind of soft start controller and load switching device of load switching device |
| CN111200363A (en) * | 2018-11-19 | 2020-05-26 | 深南电路股份有限公司 | Switching power supply and electronic device |
| CN109807435A (en) * | 2018-12-28 | 2019-05-28 | 上海沪工焊接集团股份有限公司 | Inverter type welder and its protection control circuit |
| CN110221672A (en) * | 2019-05-07 | 2019-09-10 | 六安市同心畅能电子科技有限公司 | A kind of computer power Zero consumption standby circuit with remote-controlled start-up |
| CN110543208A (en) * | 2019-09-19 | 2019-12-06 | 中国科学院长春光学精密机械与物理研究所 | Power supply and power stage integrated circuit, cantilever three-axis stable tracking platform system |
| CN211740560U (en) * | 2020-04-07 | 2020-10-23 | 安徽皖仪科技股份有限公司 | Power-on self-checking system of spectrophotometer |
| CN111751721A (en) * | 2020-06-08 | 2020-10-09 | 国网江西省电力有限公司电力科学研究院 | A kind of inductive load startup protection method and device |
| CN111835191A (en) * | 2020-08-10 | 2020-10-27 | 上海川土微电子有限公司 | Soft start circuit and soft start method for isolating DC-DC power supply chip |
Non-Patent Citations (2)
| Title |
|---|
| 王伟等: "TMS320F28335 DSP芯片高可靠电源管理电路设计", 《测控技术》 * |
| 郭志成等: "导弹发射控制模拟器的设计方法", 《战术导弹技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116149758A (en) * | 2023-04-18 | 2023-05-23 | 深圳魔视智能科技有限公司 | Chip starting configuration system |
| CN116149758B (en) * | 2023-04-18 | 2023-07-28 | 深圳魔视智能科技有限公司 | Chip starting configuration system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112783031B (en) | 2021-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9494989B2 (en) | Power distribution inside cable | |
| CN102422273B (en) | USB isolator with advanced control features | |
| CN103117490B (en) | The control method of usb hub and usb hub | |
| EP1092194B1 (en) | Device for use as stand-alone device and as slave device in a data bus system | |
| CN110534988A (en) | Type A-Type C cable and its cable chip | |
| JPH11194993A (en) | Usb controller | |
| WO2013090351A1 (en) | Electronic device and method for changing the operational mode of an accessory | |
| CN107835967A (en) | Voltage conversion for USB power delivery sources controls | |
| CN108701106A (en) | A kind of data transmission method and equipment | |
| CN110879792A (en) | Electronic equipment and interface control method thereof | |
| CN112783031B (en) | A soft command boot control and level signal isolation circuit system | |
| CN104239257B (en) | Interface arrangement and information processor | |
| TW201249141A (en) | Bridge and operation method thereof | |
| CN211017659U (en) | USB connects converting circuit and connects converter | |
| CN117792499A (en) | Repeater with Y-Cable and signal transmission system thereof | |
| CN111400225B (en) | USB transfer circuit | |
| KR20080011851A (en) | BART / BSS switching circuit of mobile communication terminal | |
| CN101482855A (en) | Bus interface and method for implementing hot-plug | |
| WO2009135816A1 (en) | Charge suspend feature for mobile device | |
| CN111817381A (en) | Charger, data line and charging equipment | |
| TWI449025B (en) | Power distribution inside cable | |
| CN222719870U (en) | Power supply transmission system | |
| CN219322510U (en) | Device with wireless communication module | |
| CN210776574U (en) | A power supply circuit and VR equipment | |
| KR20090022533A (en) | Apparatus and method for providing a hot swap function using a switching regulator |
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 |