Control device and control method with chip identification and short circuit protection

Abstract

The invention discloses a control device with chip identification and short circuit protection and a control method. The control device comprises a chip identification module for performing preventive identification verification, a monitoring module for monitoring a circuit voltage signal, a processing module for executing power failure during short circuit and a controller for receiving output of the processing module, the chip identification module is used for handshake communication with an external chip before power-on or at the moment of power-on, and verifying whether the external chip has circuit positive and negative electrode short circuit and whether the external chip is compatible so as to obtain a corresponding verification result; the controller is used for powering on / off the external chip based on the verification result; the monitoring module and the controller are electrically connected with the processing module, and the processing module is configured to be controlled by the voltage signal to judge whether to cut off an output signal of the processing module; the controller is controlled to be powered on or powered off according to whether the output signal exists or not; the method has the beneficial effect that the combination of preventive identification and quick response protection is realized.

Description

Technical Field

[0001] This invention relates to the field of electronic circuit technology, and more specifically to a control device and control method with chip identification and short-circuit protection. Background Technology

[0002] A short circuit can cause voltage instability or even collapse of the entire system, affecting the operation of other normal components. If a short circuit occurs during operation due to device aging or external factors (such as moisture or foreign objects), it will generate huge instantaneous current and high temperature. Without protection, it will first burn out the controller's drive circuit MOS, and may even affect the main processor (CPU / GPU) or motherboard.

[0003] However, existing solutions have obvious shortcomings in practical applications: they lack a pre-identification mechanism for connecting chips. If the chip is installed in reverse, is incompatible, or has a short circuit fault between the positive and negative terminals, it is easy to burn out the chip, controller drive circuit, or even the motherboard instantly after power is applied. Even if a compatible chip short-circuits due to aging or moisture during operation, the traditional controller has a slow short-circuit response speed and cannot quickly cut off the power supply, which can easily cause a chain of equipment damage or even lead to an electrical fire.

[0004] Therefore, there is an urgent need for a solution that can combine preventative chip identification with rapid response protection. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a control device and method with chip identification and short-circuit protection, thereby combining preventative identification with rapid response protection.

[0006] To achieve the above objectives, in a first aspect, the present invention adopts a technical solution as follows: a control device with chip identification and short-circuit protection, comprising a chip identification module for performing preventive identification verification, a monitoring module for monitoring circuit voltage signals, a processing module for performing power-off in the event of a short circuit, and a controller for receiving the output of the processing module;

[0007] The chip identification module is electrically connected to the controller and is used to communicate with the external chip before or at the moment of power-on to verify whether the external chip has a short circuit between the positive and negative terminals and whether it is compatible, so as to obtain the corresponding verification results.

[0008] The controller supplies / disconnects power to external chips based on the verification results;

[0009] The monitoring module and the controller are electrically connected to the processing module, and the processing module is configured to: be controlled by the voltage signal to determine whether to cut off its output signal; and control the power supply or power de-energization of the controller by the presence or absence of the output signal.

[0010] Preferably, the processing module includes a processing device connected to the monitoring module and a cutoff circuit connected to the processing device; wherein the cutoff circuit includes a high-speed actuator, which is connected to the processing device, the power supply VCC, and the controller respectively.

[0011] Preferably, the control device with chip identification and short-circuit protection further includes a prompting module, which is electrically connected to the controller and is used to output corresponding prompting information when a short circuit is not identified or detected.

[0012] Preferably, the controller further includes a PWM pin that outputs a PWM signal, and a corresponding RGB light is connected through the PWM pin.

[0013] Preferably, the control device with chip identification and short-circuit protection is characterized in that it further includes an interaction device, which is electrically connected to the controller and is used to generate interaction signals;

[0014] The controller is also configured to cycle through three-color transitions and multiple static colors based on the interaction signal.

[0015] Secondly, another technical solution adopted by the present invention is: a control method for a control device, applied to the control device with chip identification and short-circuit protection described in the first aspect, the method comprising:

[0016] By establishing a handshake communication with an external chip, preventive identification and verification are performed to obtain corresponding verification results; wherein, the verification results include whether there is a short circuit between the positive and negative terminals of the line, and whether the external chip and the controller are compatible;

[0017] If a short circuit or incompatibility is detected, the controller will immediately trigger the prompt module to output a prompt message and simultaneously prohibit power supply to the external chip.

[0018] If the identification is successful, the controller will supply power to the external chip normally to enter the operating state;

[0019] The system monitors short-circuit characteristic data in real time during operation and transmits the monitoring data synchronously to the processing module.

[0020] When the processing module determines that a short circuit has occurred based on monitoring data, it cuts off the output and stops supplying power to the controller.

[0021] Preferably, the prompting module uses LED indicator lights or software prompting units to clearly identify whether it is incompatibility or a short circuit, thereby narrowing down the scope of troubleshooting.

[0022] Preferably, the compatibility verification includes verification of chip model code, communication protocol version, and rated voltage range.

[0023] Preferably, the method further includes:

[0024] Generate interactive signals through interactive devices;

[0025] The controller cycles through three-color transitions and multiple static colors based on the interaction signals.

[0026] The beneficial effects of this invention are reflected in:

[0027] 1. Preventive identification and verification are performed through a chip identification module to avoid chip damage caused by incompatibility or incorrect installation from the source; at the same time, the voltage is monitored in real time, and once an abnormal high current is detected, the risk of short circuit is quickly interrupted by a high-speed actuator to protect the controller, motherboard and other core hardware; thus, preventive identification and rapid response protection are combined.

[0028] 2. Significantly reduces the risk of fire caused by short circuits, avoids system voltage instability or collapse, and ensures overall stable operation. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0030] Figure 1 A schematic diagram of a control device with chip identification and short-circuit protection provided in an embodiment of the present invention;

[0031] Figure 2 A circuit schematic diagram of a processing module provided in an embodiment of the present invention;

[0032] Figure 3 A flowchart of a control method for a control device provided in an embodiment of the present invention. Detailed Implementation

[0033] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0034] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0038] like Figure 1 As shown, the present invention provides a control device with chip identification and short-circuit protection, including a chip identification module for preventive identification verification, a monitoring module for monitoring circuit voltage signals, a processing module for executing power-off in the event of a short circuit, and a controller for receiving the output of the processing module;

[0039] The chip identification module is electrically connected to the controller and is used to communicate with the external chip before or at the moment of power-on to verify whether the external chip has a short circuit between the positive and negative terminals and whether it is compatible, so as to obtain the corresponding verification results.

[0040] The controller supplies / disconnects power to external chips based on the verification results;

[0041] The monitoring module and the controller are electrically connected to the processing module, and the processing module is configured to: be controlled by the voltage signal to determine whether to cut off its output signal; and control the power supply or power de-energization of the controller by the presence or absence of the output signal.

[0042] In this embodiment, after initialization, the chip identification module establishes a handshake connection with the external chip using the I2C / SPI communication protocol, and the communication baud rate is set to 100kHz-1MHz to adapt to different types of chips.

[0043] The criterion for determining a short circuit between the positive and negative terminals of a line is that the loop resistance is ≤1Ω (determined as a short circuit). For example, in the application of the I2C protocol: a pull-up resistor is connected in series on the SDA / SCL line, and the bus level is monitored after sending the Start signal; if SDA or SCL remains low, it is determined as a short circuit. The above is an example and is not intended to impose restrictions.

[0044] The compatibility verification includes verification of chip model code, communication protocol version, and rated voltage range; in this embodiment, failure to identify indicates incompatibility.

[0045] Reference Figure 2 The processing module includes a processing device connected to the monitoring module and a cut-off circuit connected to the processing device; wherein the cut-off circuit includes a high-speed actuator, which is connected to the processing device, the power supply VCC and the controller respectively.

[0046] Specifically, the monitoring module includes a resistor voltage divider circuit, which uses two resistors connected in series. The connection point of the two series resistors is connected to the input terminal of the processing device; the two series resistors are... Figure 2 The resistors R130 and R131 are shown in the diagram.

[0047] The controller is Figure 2 The MCU in the process uses a voltage comparator chip, i.e. Figure 2 The working principle of U16 in the figure is well known to those skilled in the art and will not be described in detail here. For example, during normal operation, the output signal maintains a stable high level to power the controller. Only when a short circuit occurs, causing the input voltage to cross the threshold voltage, will the output be cut off, thus cutting off the power supply before driving the MOS.

[0048] In this embodiment, the high-speed actuator uses a MOSFET, and the short-circuit response time is controlled within 1-50 μs, i.e. Figure 2 Q32 in the diagram; the gate of the MOS transistor is connected to the output terminal of the processing device, the source of the MOS transistor is connected to the power supply VCC, and the drain of the MOS transistor is connected to the controller.

[0049] In this embodiment, the control device with chip identification and short circuit protection further includes a prompting module, which is electrically connected to the controller and is used to output corresponding prompting information when a short circuit is not identified or detected. The prompting module uses an LED indicator or a software prompting unit to clearly indicate whether it is incompatibility or a short circuit, thereby narrowing down the troubleshooting scope.

[0050] In application, taking LED indicator lights as an example, a flashing yellow LED indicator light indicates an unidentified or incompatible fault; a solid red LED indicator light indicates a short circuit has been detected.

[0051] The above solution uses a chip identification module for preventative identification and verification, preventing chip damage caused by incompatibility or incorrect installation from the source. At the same time, it monitors the voltage in real time, and if an abnormally high current is detected, it quickly interrupts the risk of short circuit through high-speed actuators, protecting core hardware such as the controller and motherboard. This achieves a combination of preventative identification and rapid response protection.

[0052] At the same time, it significantly reduces the risk of fire caused by short circuits, avoids system voltage instability or collapse, and ensures overall stable operation.

[0053] In some embodiments, based on the above technical solution, the controller further includes a PWM pin that outputs a PWM signal, and a corresponding RGB light is connected through the PWM pin; the PWM signal includes PWMG, PWMB and PWMR.

[0054] The control device with chip identification and short-circuit protection further includes an interaction device, which is electrically connected to the controller and is used to generate interaction signals.

[0055] The controller is also configured to cycle through three-color transitions and multiple static colors based on the interaction signal; wherein the interaction device can be a button; long press to turn off, short press to turn on after turning off; and through an adapted microphone, it can cycle through multiple modes of short press for multiple static colors + three-color transition + external microphone voice control function; making the interaction more flexible.

[0056] Based on the same inventive concept, embodiments of the present invention also provide a control method for a control device, applied to the control device with chip identification and short-circuit protection described in the first aspect, referring to... Figure 3 The method includes the following steps:

[0057] S101, establishes handshake communication with the external chip to perform preventive identification and verification in order to obtain the corresponding verification results; wherein, the verification results include whether there is a short circuit between the positive and negative terminals of the line and whether the external chip and the controller are compatible;

[0058] S102, if a short circuit or incompatibility is detected, the controller will immediately trigger the prompt module to output a prompt message and at the same time prohibit power supply to the external chip;

[0059] S103, if the identification is successful, the controller will supply power to the external chip normally to enter the running state;

[0060] S104, during operation, short-circuit characteristic data is monitored in real time, and the monitoring data is synchronously transmitted to the processing module;

[0061] S105, when the processing module determines that a short circuit has occurred based on monitoring data, it cuts off the output and stops supplying power to the controller.

[0062] The short-circuit characteristic data includes abnormally high current and voltage values; this solution uses the application of voltage values ​​as an example for illustration.

[0063] The prompting module uses LED indicator lights or software prompting units to clearly identify whether it is incompatibility or short circuit, thereby narrowing down the troubleshooting scope; reducing hardware replacement costs and repair time, and lowering maintenance costs.

[0064] The compatibility verification includes verification of chip model code, communication protocol version, and rated voltage range. Furthermore, after the user troubleshoots a short circuit or replaces the chip with a compatible one, the control device restarts and automatically cycles through the above steps to restore normal control flow. In application, the first power supply after fault recovery requires a preset time delay to avoid frequent start-stop shocks.

[0065] Furthermore, the method also includes:

[0066] Generate interactive signals through interactive devices;

[0067] The controller cycles through three-color transitions and multiple static colors based on the interaction signals.

[0068] It should be noted that for a more detailed description of the workflow of the method embodiments, please refer to the foregoing device embodiments section, which will not be repeated here.

[0069] The entire solution uses a chip identification module for preventative identification and verification, preventing chip damage caused by incompatibility or incorrect installation from the source. At the same time, it monitors the voltage in real time, and once an abnormally high current is detected, it quickly interrupts the risk of short circuit through high-speed actuators, protecting core hardware such as the controller and motherboard. Thus, it combines preventative identification with rapid response protection.

[0070] At the same time, it significantly reduces the risk of fire caused by short circuits, avoids system voltage instability or collapse, and ensures overall stable operation.

[0071] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the figures. For example, two consecutive blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified functions or actions, or using a combination of dedicated hardware and computer instructions.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A control device with chip recognition and short circuit protection, characterized in that , including a chip identification module for preventive identification verification, a monitoring module for monitoring a circuit voltage signal, a processing module for executing power-off when a short circuit occurs, and a controller for receiving the output of the processing module; The chip identification module is electrically connected with the controller, and is used for handshake communication with an external chip before power-on or at the moment of power-on, verifying whether the external chip has a line positive and negative short circuit and whether it is compatible, to obtain a corresponding verification result; The controller supplies power to the external chip based on the verification result; The monitoring module and the controller are respectively electrically connected with the processing module, and the processing module is configured to be controlled by the voltage signal to determine whether to cut off its output signal, and to control the power-on or power-off of the controller through the presence or absence of the output signal.

2. The control device with chip identification and short circuit protection according to claim 1, characterized in that The processing module includes a processing device connected with the monitoring module, and a cut-off circuit connected with the processing device; wherein the cut-off circuit includes a high-speed execution device, and the high-speed execution device is respectively connected with the processing device, a power supply VCC and the controller.

3. The control device with chip identification and short circuit protection according to claim 1 or 2, characterized in that It also includes a prompt module electrically connected with the controller, and is used for outputting corresponding prompt information when no identification or short circuit detection is performed.

4. The control device with chip identification and short circuit protection according to claim 3, characterized in that The controller also includes a PWM pin outputting a PWM signal, and a corresponding RGB lamp is connected through the PWM pin.

5. The control device with chip identification and short circuit protection according to claim 4, characterized in that It also includes an interactive device electrically connected with the controller, and is used for generating an interactive signal; The controller is also configured to perform three-color jumping and switching cycle of multiple static colors based on the interactive signal.

6. A control method of a control device, characterized by, The method is applied to the control device with chip identification and short circuit protection in claim 5, and the method comprises: Preventive identification verification is performed through handshake communication with an external chip to obtain a corresponding verification result; wherein the verification result includes whether a line positive and negative short circuit exists, and whether the external chip is compatible with the controller; If a short circuit or incompatibility is identified, the controller immediately triggers the prompt module to output prompt information, and simultaneously prohibits power supply to the external chip; If the identification is passed, the controller normally supplies power to the external chip to enter a running state; Short circuit characteristic data is monitored in real time during the running process, and the monitoring data is synchronously transmitted to the processing module; When the processing module determines that a short circuit occurs through the monitoring data, the output is cut off, and the power supply to the controller is stopped.

7. The control method according to claim 1, characterized by, The prompt module adopts an LED indicator or a software prompt unit to clearly indicate whether it is incompatible or a short circuit, thereby facilitating the reduction of the troubleshooting range.

8. The control method according to claim 7, characterized by, The compatibility verification includes chip model code verification, communication protocol version verification, and rated voltage range verification.

9. The control method according to claim 7, characterized by, The method further comprises: An interactive signal is generated through an interactive device; The controller performs three-color jumping and switching cycle of multiple static colors based on the interactive signal.

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