Parallel reset circuit applied to docking station and docking station
By designing a parallel reset circuit, the problem of instability in the RC charging circuit of the expansion dock was solved, enabling precise reset control of the main control module and improving the reliability and stability of the expansion dock.
Patent Information
- Application Number
- CN202520379441.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The RC charging circuit of existing docking stations is susceptible to factors such as voltage, temperature and component aging, resulting in unstable reset time and complex calculations, making it difficult to control precisely.
A parallel reset circuit is adopted, including a voltage signal transmission module and a reset control module. Through multiple voltage signal branches and components such as anti-voltage backflow devices, current limiting modules, and voltage stabilization and filtering modules, precise control of the main control module is achieved.
It improves the reliability and accuracy of the docking station's reset time, reduces the impact of environmental factors and component aging, enhances the stability of the reset time, and improves the user experience.
Smart Images
Figure CN223941296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reset control circuit technology, and in particular to a parallel reset circuit and an expansion dock. Background Technology
[0002] Docks, as important interface expansion devices, provide computers or tablets with various interface expansion functions, facilitating the connection of various external devices. Currently, existing technologies for docking station master control reset typically employ an external RC charging circuit to control the docking station's reset time. However, RC charging circuits are susceptible to factors such as voltage, temperature, and component aging, resulting in poor stability of the circuit's reset time and making precise control difficult. Furthermore, calculating the reset time of an RC charging circuit is complex, requiring consideration of multiple parameters (such as capacitance, resistance, and threshold voltage), and adjusting these parameters necessitates complex calculations and debugging, hindering rapid optimization and adjustment in engineering practice. Therefore, providing a new docking station reset circuit to achieve precise and stable docking station reset control is of paramount importance. Utility Model Content
[0003] In view of this, the problem to be solved by this utility model is to provide a parallel reset circuit for a docking station, which reduces the impact of voltage, environment, component aging and other factors on the docking station during power-on reset, and improves the reliability and accuracy of the docking station reset time; at the same time, it also improves the stability of the docking station reset time.
[0004] To address the aforementioned technical problems, the first aspect of this utility model discloses a parallel reset circuit applied to a docking station. The parallel reset circuit includes a voltage signal transmitting module and a reset control module. The voltage signal transmitting module includes at least one voltage signal transmitting branch, wherein:
[0005] The transmitting end of all the voltage signal transmitting branches is electrically connected to the receiving end of the reset control module, and the control end of the reset control module is used to electrically connect to the controlled end of the main control module.
[0006] The reset control module is used to receive sub-voltage status signals sent by all the voltage signal sending branches; when the sub-voltage status signals corresponding to all the voltage signal sending branches are the first voltage status signals, the module determines that the voltage output signal is the first level signal and transmits the first level signal to the main control module so that the main control module performs a reset operation according to the first level signal.
[0007] When at least one second voltage state signal exists among the sub-voltage state signals corresponding to all the voltage signal transmitting branches, the voltage output signal is determined to be a second level signal, and the second level signal is transmitted to the main control module so that the main control module performs a work stop operation according to the second level signal; wherein, the first voltage state signal is a high level signal, the second voltage state signal is a low level signal, the first level signal is a high level signal, and the second level signal is a low level signal.
[0008] As an optional implementation, in the first aspect of this invention, each of the voltage signal transmitting branches has a corresponding anti-voltage backflow device, wherein:
[0009] The transmitting end of each voltage signal transmitting branch is electrically connected to the first end of the corresponding anti-voltage backflow device, and the second end of all the anti-voltage backflow devices is electrically connected to the receiving end of the reset control module.
[0010] As an optional implementation, in the first aspect of this utility model, the parallel reset circuit further includes a current limiting module, wherein:
[0011] The second terminal of all the aforementioned anti-voltage backflow devices is electrically connected to the first terminal of the current limiting module, and the second terminal of the current limiting module is electrically connected to the receiving terminal of the reset control module;
[0012] The current limiting module is used to limit the current flowing into the receiving end of the reset control module.
[0013] As an optional implementation, in the first aspect of this utility model, the parallel reset circuit further includes a first voltage regulation and filtering module, wherein:
[0014] The first terminal of the first voltage regulator and filter module is electrically connected to the receiving terminal of the reset control module, and the second terminal of the first voltage regulator and filter module is used for grounding;
[0015] The first voltage regulation and filtering module is used to stabilize the sub-voltage status signals transmitted by all the voltage signal transmission branches, and to filter out the first interference signal present in all the sub-voltage status signals.
[0016] As an optional implementation, in the first aspect of this utility model, the parallel reset circuit further includes a second voltage regulation and filtering module, wherein:
[0017] The first terminal of the second voltage regulator and filter module is electrically connected to the control terminal of the reset control module, and the second terminal of the second voltage regulator and filter module is used for grounding;
[0018] The second voltage regulation and filtering module is used to stabilize the voltage output signal and filter out the second interference signal present in the voltage output signal.
[0019] As an optional implementation, in the first aspect of this utility model, the parallel reset circuit further includes a debugging module, wherein:
[0020] The debugging terminal of the debugging module is electrically connected to the second terminal of all the anti-voltage backflow devices, and the grounding terminal of the debugging module is used for grounding;
[0021] The debugging module is used to debug the sub-voltage status signals corresponding to all voltage signal sending branches that the reset control module needs to receive, so as to initialize the voltage signal receiving configuration of the reset control module.
[0022] As an optional implementation, in the first aspect of this utility model, the anti-voltage backflow device corresponding to all the voltage signal transmitting branches includes diodes corresponding to all the voltage signal transmitting branches, wherein:
[0023] The transmitting end of each voltage signal transmitting branch is electrically connected to the negative terminal of the corresponding diode, and the positive terminals of all the diodes are electrically connected to the first terminal of the current limiting module.
[0024] As an optional implementation, in the first aspect of this utility model, the current limiting module includes a single current limiting resistor, or includes multiple current limiting resistors connected in series, or includes multiple current limiting resistors connected in parallel;
[0025] The first voltage stabilizing and filtering module includes a single first voltage stabilizing and filtering capacitor, or includes multiple first voltage stabilizing and filtering capacitors connected in parallel;
[0026] The second voltage stabilizing and filtering module includes a single second voltage stabilizing and filtering capacitor, or includes multiple second voltage stabilizing and filtering capacitors connected in parallel.
[0027] As an optional implementation, in the first aspect of this invention, each of the voltage signal transmitting branches includes at least one voltage source, wherein the voltage source is a regulated voltage source, a reference voltage source, or a voltage source provided by a preset external device.
[0028] The second aspect of this utility model discloses an expansion dock, the expansion dock including a parallel reset circuit applied to the expansion dock as disclosed in any of the first aspects.
[0029] Implementing this utility model has the following beneficial effects:
[0030] This invention provides a parallel reset circuit for a docking station, which reduces the impact of voltage, environment, component aging, and other factors on the docking station during power-on reset, thereby improving the reliability and accuracy of the docking station's reset time; at the same time, it also improves the stability of the docking station's reset time. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is a schematic diagram of the structure of a parallel reset circuit applied to a docking station, as disclosed in an embodiment of this utility model;
[0033] Figure 2 This is a schematic diagram of another parallel reset circuit for a docking station disclosed in this embodiment of the present invention;
[0034] Figure 3 This is a timing control diagram for a parallel reset circuit applied to a docking station, as disclosed in an embodiment of this utility model.
[0035] Figure 4 This is a schematic diagram of the structure of an expansion dock disclosed in an embodiment of this utility model. Detailed Implementation
[0036] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.
[0037] It should be noted that, unless otherwise expressly specified and limited, the term "electrical connection" in the specification, claims, and accompanying drawings of this utility model should be interpreted broadly. For example, it can be a fixed electrical connection, a detachable electrical connection, or an integral electrical connection; it can be a mechanical electrical connection, an electrical-electrical connection, or a connection that allows for communication; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Furthermore, the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] Example 1
[0039] Please see Figure 1 , Figure 1 This is a schematic diagram of a parallel reset circuit for a docking station disclosed in an embodiment of this utility model. This circuit can be used to reset various modules integrated within the docking station, such as the main control module, interface conversion module, power management module, signal processing module, storage module, and communication modules (such as Wi-Fi and Bluetooth modules). This utility model embodiment does not limit the scope of the application. Figure 1 As shown, this parallel reset circuit for a docking station includes a voltage signal transmitting module 101 and a reset control module 102, wherein:
[0040] The transmitting end of the voltage signal transmitting module 101 is electrically connected to the receiving end of the reset control module 102, and the control end of the reset control module 102 is used to electrically connect to the controlled end of the main control module 103.
[0041] The reset control module 102 is used to receive the voltage status signal sent by the voltage signal sending module 101; determine the voltage output signal according to the voltage status signal, and transmit the voltage output signal to the main control module 103 so that the main control module 103 can perform the matching target operation according to the voltage output signal.
[0042] In this embodiment of the present invention, the target operation includes a reset operation or a work stop operation. Specifically, the main control module 103 can determine the target operation based on the signal type (i.e., high or low level) of the received voltage output signal.
[0043] Optionally, the control terminal of the reset control module 102 can be used not only to electrically connect to the controlled terminal of the main control module 103, but also to electrically connect to the controlled terminals of other modules such as the interface conversion module, power management module, signal processing module, storage module, and communication module (such as Wi-Fi module and Bluetooth module), so as to achieve the same reset control and work stop control of other modules.
[0044] It is evident that implementation Figure 1 The described parallel reset circuit for a docking station can control the reset time of the main control module / other modules through a voltage status signal sent by a voltage signal transmission module to meet the power-on reset requirements of the docking station. Compared to a main control reset circuit with an external RC charging circuit, this reduces the impact of voltage, environment, and component aging factors on the docking station during power-on reset, improving the reliability and accuracy of the docking station's reset time. Simultaneously, it also improves the stability of the docking station's reset time, thereby enhancing the user's equipment experience.
[0045] In an optional embodiment, please refer to Figure 2 , Figure 2 This is a schematic diagram of another parallel reset circuit applied to a docking station disclosed in this embodiment of the present invention, as shown below. Figure 2 As shown, the voltage signal transmitting module 101 includes at least one voltage signal transmitting branch, wherein:
[0046] The transmitting end of all voltage signal transmitting branches is electrically connected to the receiving end of the reset control module 102;
[0047] The reset control module 102 is used to determine that the voltage output signal is a first level signal when all the sub-voltage status signals sent by all voltage signal sending branches are first voltage status signals; and to determine that the voltage output signal is a second level signal when at least one second voltage status signal exists among the sub-voltage status signals sent by all voltage signal sending branches.
[0048] In this optional embodiment, the reset control module 102 may optionally include a reset control chip U50 (e.g., Figure 2 As shown, the receiving end of the reset control module 102 corresponds to the receiving end VDD of the reset control chip U50, and the control end of the reset control module 102 corresponds to the control end Vout / CT of the reset control chip U50. It may also include other devices / components that can realize the above-mentioned voltage output signal determination function.
[0049] Furthermore, the first voltage state signal is a high-level signal, and the second voltage state signal is a low-level signal;
[0050] The main control module 103 is used to perform a reset operation when the voltage output signal is a first level signal and to perform a work stop operation when the voltage output signal is a second level signal; wherein, the first level signal is a high level signal and the second level signal is a low level signal.
[0051] It should be noted that in practical applications, the levels of the first voltage state signal and the second voltage state signal are opposite. The first voltage state signal can be high and the second voltage state signal can be low, or vice versa (this can be achieved using an inverter, etc.). The specific configuration can be based on the actual application requirements of the circuit. Similarly, the levels of the first and second voltage state signals are also opposite. The first voltage state signal can be high and the second voltage state signal can be low, or vice versa. Again, the specific configuration can be based on the actual application requirements of the circuit.
[0052] For example, consider a signal state configuration where the first voltage state signal is high, the second voltage state signal is low, and the first voltage state signal is high while the second voltage state signal is low. This configuration can be used as an example of the signal state configuration for the parallel reset circuit applied to the docking station. Figure 3 As shown ( Figure 3 This is a timing control diagram for a parallel reset circuit applied to a docking station, as disclosed in an embodiment of the present invention. When all the sub-voltage state signals sent by each voltage signal sending branch are first voltage state signals (i.e., all are high-level signals), the reset control module 102 can determine that a high level needs to be pulled up and outputs a first-level signal (i.e., a high-level signal) to the main control module 103. The main control module 103 then performs a reset operation based on the received first-level signal. However, when at least one second voltage state signal (e.g., ...) is present in the sub-voltage state signals sent by each voltage signal sending branch... Figure 3 The medium voltage signal transmission branch DL_3V3_EN sends the second voltage status signal (low level). At this time, the reset control module 102 can determine that it needs to pull the level low and output the second level signal (i.e., low level signal) to the main control module 103. Then the main control module 103 stops working based on the received second level signal.
[0053] Further optionally, each voltage signal transmission branch includes at least one voltage source (such as...). Figure 2 In the 0V8_PGOD / 1V1_PGOD / DL_3V3_EN, the voltage source can be a regulated power supply, a reference voltage source, or a voltage source provided by an external device (such as a host). The specific voltage magnitude of the voltage source can be configured based on the actual usage requirements of the circuit, and this embodiment of the utility model does not limit it.
[0054] In this optional embodiment, further, each voltage signal transmission branch has a corresponding anti-voltage backflow device, wherein:
[0055] The transmitting end of each voltage signal transmitting branch is electrically connected to the first end of the corresponding anti-voltage backflow device, and the second end of all anti-voltage backflow devices is electrically connected to the receiving end of the reset control module 102.
[0056] The anti-voltage backflow device for each voltage signal transmission branch is used to prevent the reverse transmission of the sub-voltage status signal on that voltage signal transmission branch. Optionally, the anti-voltage backflow device for each voltage signal transmission branch may include a diode (e.g., a diode corresponding to each voltage signal transmission branch) for that voltage signal transmission branch. Figure 2 The diodes (D31 / D27 / D29) in the diodes can also include other devices / components that can achieve the above-mentioned anti-voltage reverse-feeding function.
[0057] In this optional embodiment, the parallel reset circuit may further include a debugging module JP1, wherein:
[0058] The debugging terminal of the debugging module JP1 is electrically connected to the second terminal of all anti-voltage backflow devices, and the grounding terminal of the debugging module JP1 is used for grounding;
[0059] The debugging module JP1 is used to debug the voltage status signal that the reset control module 102 needs to receive, so as to realize the voltage signal reception initialization configuration of the reset control module 102.
[0060] It is evident that implementation Figure 2 The described parallel reset circuit for a docking station can be constructed by using at least one voltage signal transmission branch to build a voltage signal transmission module, and each voltage signal transmission branch can be configured with anti-voltage backflow devices. This improves the construction flexibility and safety of the voltage signal transmission module, thereby improving its applicability to various scenarios and enhancing the reliability and accuracy of the reset control module. At the same time, the flexible configuration of each voltage signal also helps to improve the practicality of the docking station equipment.
[0061] In another alternative embodiment, such as Figure 2 As shown, the parallel reset circuit also includes a current limiting module, wherein:
[0062] The second terminal of all anti-voltage backflow devices is electrically connected to the first terminal of the current limiting module, and the second terminal of the current limiting module is electrically connected to the receiving terminal of the reset control module 102.
[0063] The current limiting module is used to limit the current flowing into the receiver of the reset control module 102.
[0064] In this optional embodiment, the current limiting module may include a single current limiting resistor (e.g., Figure 2 The device may include a current-limiting resistor R520, or multiple current-limiting resistors connected in series, or multiple current-limiting resistors connected in parallel; in addition to current-limiting resistor devices / components, it may also include other devices / components capable of achieving the above-mentioned current-limiting function.
[0065] It should be noted that the parallel reset circuit of this application and the docking station can also include other current limiting modules, such as R560 and R544. The specific configuration can be made according to the actual usage requirements of the circuit.
[0066] Furthermore, the anti-voltage backflow devices corresponding to all voltage signal transmission branches include diodes corresponding to all voltage signal transmission branches, wherein:
[0067] The transmitting end of each voltage signal transmitting branch is electrically connected to the negative terminal of the corresponding diode, and the positive terminals of all diodes are electrically connected to the first terminal of the current limiting module.
[0068] It is evident that implementation Figure 2 The parallel reset circuit described herein, applied to a docking station, can be constructed using current-limiting resistors / components or other current-limiting devices / components to create a current-limiting module, and using diodes to create a voltage reverse-current protection device. This improves the flexibility of module construction in the reset circuit, thereby enhancing the accuracy and safety of reset control.
[0069] In yet another alternative embodiment, such as Figure 2 As shown, the parallel reset circuit also includes a first voltage regulation and filtering module, wherein:
[0070] The first terminal of the first voltage regulator and filter module is electrically connected to the receiving terminal of the reset control module 102, and the second terminal of the first voltage regulator and filter module is used for grounding;
[0071] The first voltage regulation and filtering module is used to stabilize the sub-voltage status signals transmitted by all voltage signal transmission branches, and to filter out the first interference signal present in all sub-voltage status signals.
[0072] In this optional embodiment, the first voltage regulation and filtering module may include a single first voltage regulation and filtering capacitor (e.g., Figure 2 The first voltage-stabilizing filter capacitor (C466) may be included, or may include multiple first voltage-stabilizing filter capacitors connected in parallel. In addition to the corresponding voltage-stabilizing filter capacitor, the first voltage-stabilizing filter module may also include other devices / components that can achieve the above-mentioned voltage stabilization and filtering functions, so as to protect each module / device in the circuit, stabilize the level, and realize voltage signal buffering.
[0073] Alternatively, the first voltage-stabilizing filter capacitor can be a non-polarized capacitor or a polarized capacitor, depending on the actual needs of the circuit.
[0074] Alternatively, the first interference signal may include one or more of the following: noise signals (such as high-frequency noise, ground noise), ripple signals, spike signals, low-frequency interference signals, glitches in digital signals, and electromagnetic interference signals.
[0075] It is evident that implementation Figure 2 The parallel reset circuit described for use in a docking station can be constructed by using a voltage-stabilizing filter capacitor or other devices / components that can achieve voltage stabilization and filtering functions to build a first voltage-stabilizing filter module. This improves the construction flexibility of the first voltage-stabilizing filter module, which in turn helps to improve the transmission stability of the voltage status signal, thereby improving the signal reception reliability and accuracy of the reset control module, so as to achieve a precise reset control process.
[0076] In yet another alternative embodiment, such as Figure 2 As shown, the parallel reset circuit also includes a second voltage regulation and filtering module, wherein:
[0077] The first terminal of the second voltage regulator and filter module is electrically connected to the control terminal of the reset control module 102, and the second terminal of the second voltage regulator and filter module is used for grounding.
[0078] The second voltage regulation and filtering module is used to stabilize the voltage output signal and filter out the second interference signal present in the voltage output signal.
[0079] In this optional embodiment, the second voltage regulation and filtering module may include a single second voltage regulation and filtering capacitor (e.g., Figure 2 The second voltage-regulating filter module may include the second voltage-regulating filter capacitor (C460 / C462) or multiple second voltage-regulating filter capacitors connected in parallel; in addition to the corresponding voltage-regulating filter capacitors, the second voltage-regulating filter module may also include other devices / components that can achieve the above-mentioned voltage regulation and filtering functions, so as to protect each module / device in the circuit, stabilize the level, and realize voltage signal buffering.
[0080] Alternatively, the second voltage-stabilizing filter capacitor can be a non-polarized capacitor or a polarized capacitor, depending on the actual needs of the circuit.
[0081] Alternatively, the second interference signal may include one or more of the following: noise signals (such as high-frequency noise, ground noise), ripple signals, spike signals, low-frequency interference signals, glitches in digital signals, and electromagnetic interference signals.
[0082] It is evident that implementation Figure 2The parallel reset circuit described for use in a docking station can be used to construct a second voltage-stabilizing and filtering module using a voltage-stabilizing filter capacitor or other devices / components that can achieve voltage stabilization and filtering functions. This improves the construction flexibility of the second voltage-stabilizing and filtering module, thereby improving the transmission stability of the voltage output signal and thus improving the signal output reliability and accuracy of the reset control module, so as to further realize a precise reset control process.
[0083] Example 2
[0084] Please see Figure 4 , Figure 4 This is a schematic diagram of a docking station disclosed in an embodiment of the present invention. The docking station includes any of the parallel reset circuits applied to the docking station as described in Embodiment 1. This parallel reset circuit can be used to reset various modules integrated within the docking station, such as the main control module, interface conversion module, power management module, signal processing module, storage module, and communication modules (such as Wi-Fi and Bluetooth modules). This embodiment of the present invention does not limit the scope of the application. It should be noted that for a detailed description of a parallel reset circuit applied to a docking station, please refer to the specific description in Embodiment 1; this embodiment will not repeat it.
[0085] It is evident that implementation Figure 4 The described docking station can control the reset time of the main control module / other modules through voltage status signals sent by the internally integrated voltage signal transmission module, so as to meet the power-on reset requirements of the docking station. In this way, compared with the main control reset circuit of the external RC charging circuit, the influence of voltage, environment, component aging and other factors on the docking station during power-on reset is reduced, and the reliability and accuracy of the docking station reset time are improved. At the same time, it also improves the stability of the docking station reset time, thereby improving the user's equipment experience.
[0086] The foregoing has provided a detailed description of a parallel reset circuit and an expansion dock disclosed in the embodiments of this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. However, the above preferred embodiments are not intended to limit this utility model. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. Furthermore, for those skilled in the art, based on the ideas of this utility model, changes may be made in the specific implementation methods and application scope without departing from the spirit and scope of this utility model. Therefore, the protection scope of this utility model is defined by the scope of the claims.
Claims
1. A parallel reset circuit for use in a docking station, characterized in that, The parallel reset circuit includes a voltage signal transmitting module and a reset control module. The voltage signal transmitting module includes at least one voltage signal transmitting branch, wherein: The transmitting end of all the voltage signal transmitting branches is electrically connected to the receiving end of the reset control module, and the control end of the reset control module is used to electrically connect to the controlled end of the main control module. The reset control module is used to receive sub-voltage status signals sent by all the voltage signal sending branches; when the sub-voltage status signals corresponding to all the voltage signal sending branches are the first voltage status signals, the module determines that the voltage output signal is the first level signal and transmits the first level signal to the main control module so that the main control module performs a reset operation according to the first level signal. When at least one second voltage state signal exists among the sub-voltage state signals corresponding to all the voltage signal transmitting branches, the voltage output signal is determined to be a second level signal, and the second level signal is transmitted to the main control module so that the main control module performs a work stop operation according to the second level signal; wherein, the first voltage state signal is a high level signal, the second voltage state signal is a low level signal, the first level signal is a high level signal, and the second level signal is a low level signal.
2. The parallel reset circuit for a docking station according to claim 1, characterized in that, Each of the voltage signal transmitting branches has a corresponding anti-voltage backflow device, wherein: The transmitting end of each voltage signal transmitting branch is electrically connected to the first end of the corresponding anti-voltage backflow device, and the second end of all the anti-voltage backflow devices is electrically connected to the receiving end of the reset control module.
3. A parallel reset circuit for a docking station according to claim 2, characterized in that, The parallel reset circuit also includes a current limiting module, wherein: The second terminal of all the aforementioned anti-voltage backflow devices is electrically connected to the first terminal of the current limiting module, and the second terminal of the current limiting module is electrically connected to the receiving terminal of the reset control module; The current limiting module is used to limit the current flowing into the receiving end of the reset control module.
4. A parallel reset circuit for a docking station according to claim 3, characterized in that, The parallel reset circuit further includes a first voltage regulation and filtering module, wherein: The first terminal of the first voltage regulator and filter module is electrically connected to the receiving terminal of the reset control module, and the second terminal of the first voltage regulator and filter module is used for grounding; The first voltage regulation and filtering module is used to stabilize the sub-voltage status signals transmitted by all the voltage signal transmission branches, and to filter out the first interference signal present in all the sub-voltage status signals.
5. A parallel reset circuit for a docking station according to claim 4, characterized in that, The parallel reset circuit further includes a second voltage regulation and filtering module, wherein: The first terminal of the second voltage regulator and filter module is electrically connected to the control terminal of the reset control module, and the second terminal of the second voltage regulator and filter module is used for grounding; The second voltage regulation and filtering module is used to stabilize the voltage output signal and filter out the second interference signal present in the voltage output signal.
6. A parallel reset circuit for a docking station according to any one of claims 2-5, characterized in that, The parallel reset circuit also includes a debugging module, wherein: The debugging terminal of the debugging module is electrically connected to the second terminal of all the anti-voltage backflow devices, and the grounding terminal of the debugging module is used for grounding; The debugging module is used to debug the sub-voltage status signals corresponding to all voltage signal sending branches that the reset control module needs to receive, so as to initialize the voltage signal receiving configuration of the reset control module.
7. A parallel reset circuit for a docking station according to any one of claims 3-5, characterized in that, The anti-voltage backflow devices corresponding to all the voltage signal transmission branches include diodes corresponding to all the voltage signal transmission branches, wherein: The transmitting end of each voltage signal transmitting branch is electrically connected to the negative terminal of the corresponding diode, and the positive terminals of all the diodes are electrically connected to the first terminal of the current limiting module.
8. A parallel reset circuit for a docking station according to claim 5, characterized in that, The current limiting module includes a single current limiting resistor, or multiple current limiting resistors connected in series, or multiple current limiting resistors connected in parallel; The first voltage stabilizing and filtering module includes a single first voltage stabilizing and filtering capacitor, or includes multiple first voltage stabilizing and filtering capacitors connected in parallel; The second voltage stabilizing and filtering module includes a single second voltage stabilizing and filtering capacitor, or includes multiple second voltage stabilizing and filtering capacitors connected in parallel.
9. A parallel reset circuit for a docking station according to any one of claims 1-5, characterized in that, Each of the voltage signal transmission branches includes at least one voltage source, wherein the voltage source is a regulated voltage source, a reference voltage source, or a voltage source provided by a preset external device.
10. A docking station, characterized in that, The expansion dock includes a parallel reset circuit for use in the expansion dock as described in any one of claims 1-9.