CN216145181U - USB expansion module control circuit and device - Google Patents

USB expansion module control circuit and device Download PDF

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Publication number
CN216145181U
CN216145181U CN202121216913.9U CN202121216913U CN216145181U CN 216145181 U CN216145181 U CN 216145181U CN 202121216913 U CN202121216913 U CN 202121216913U CN 216145181 U CN216145181 U CN 216145181U
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usb
resistor
electrically connected
capacitor
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陈振武
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Shenzhen JWIPC Technology Co Ltd
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Shenzhen JWIPC Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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Abstract

The utility model discloses a USB expansion module control circuit and a device, comprising: the USB expansion module, the module bottom plate and the crystal oscillator; the USB expansion module is electrically connected with the module bottom plate, and the module bottom plate is welded with a welding disc on the mainboard through the stamp hole; the USB expansion module comprises a USB hub control unit, a multi-port expansion unit and a power supply processing unit; the USB hub control unit comprises a ql852_ qfn28 hub control subunit, a crystal oscillator subunit, a reset subunit, a USB OC mode selection subunit and an overcurrent protection subunit. The utility model realizes the expansion of multi-path USB output signals, conforms to the universal serial bus, and has low power consumption and low cost.

Description

USB expansion module control circuit and device
Technical Field
The utility model relates to the technical field of USB expansion control, in particular to a USB expansion module control circuit and a device.
Background
The USB expansion scheme used by the mainboard on the market is single at present, and the USB expansion ICs of different manufacturers cannot realize pin-to-pin compatibility; when the USB expansion IC model is difficult to supply, the motherboard manufacturer has to replace the expansion IC of another model by another version. In addition, the existing USB expansion IC is to be improved in terms of power consumption and reliability. Therefore, the utility model of a GL852-ssop based USB expansion module control circuit is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The present invention provides a USB expansion module control circuit and device, aiming at the above-mentioned defects in the prior art.
In a first aspect, the utility model discloses a USB expansion module control circuit, which comprises a USB expansion module, a module bottom plate and a crystal oscillator; the USB expansion module is electrically connected with the module bottom plate, and the module bottom plate is welded with a welding disc on the mainboard through a stamp hole; the USB expansion module comprises a USB hub control unit, a multi-port expansion unit and a power supply processing unit; the USB hub control unit comprises a ql852_ qfn28 hub control subunit, a crystal oscillator subunit, a reset subunit, a USB OC mode selection subunit and an overcurrent protection subunit; the first end to the eighth end of the ql852_ qfn28 USB hub control subunit are electrically connected with the first end to the eighth end of the multi-port expansion unit, respectively, the ninth end of the ql852_ qfn28 USB hub control subunit and the ninth end of the multi-port expansion unit are electrically connected with the reset subunit, respectively, the tenth end and the eleventh end of the ql852_ qfn28 USB hub control subunit are electrically connected with the tenth end and the eleventh end of the multi-port expansion unit, respectively, the twelfth end to the fifteenth end of the ql852_ qfn28 USB hub control subunit are electrically connected with the over-current protection subunit, respectively, the sixteenth end of the ql852_ qfn28 USB hub control subunit is electrically connected with the USB OC mode selection unit, and the power supply end of the ql _ 852 qfn28 USB hub control subunit and the power supply input end of the multi-port expansion unit are electrically connected.
Preferably, the USB OC mode selection subunit includes a first resistor; the first end of the first resistor is electrically connected with the sixteenth end of the ql852_ qfn28 USB hub control subunit, and the second end of the first resistor is electrically connected with the power supply processing unit.
Preferably, the overcurrent protection subunit includes a second resistor, a third resistor, a fourth resistor, and a fifth resistor; the first end of the second resistor, the first end of the third resistor, the first end of the fourth resistor and the first end of the fifth resistor are electrically connected with the twelfth end to the fifteenth end of the ql852_ qfn28 USB hub control subunit, respectively, and the second end of the second resistor, the second end of the third resistor, the second end of the fourth resistor and the second end of the fifth resistor are electrically connected with the power processing unit, respectively.
Preferably, the reset subunit includes a sixth resistor and a first capacitor; a first end of the sixth resistor and a first end of the first capacitor are electrically connected to a ninth end of the ql852_ qfn28 USB hub control subunit and a ninth end of the multiport extension unit, respectively, a second end of the sixth resistor is electrically connected to the power processing unit, and a second end of the first capacitor is grounded.
Preferably, the power supply processing unit comprises a first power supply processing subunit and a second power supply processing subunit; the first power supply processing subunit is electrically connected with the multi-port expansion unit, and the second power supply processing subunit is electrically connected with the ql852_ qfn28 USB hub control subunit.
Preferably, the second power supply processing unit includes a magnetic bead, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, and a sixth capacitor; the first end of the magnetic bead, the first end of the second capacitor and the first end of the third capacitor are respectively and electrically connected with the first power input end of the ql852_ qfn28 USB hub control subunit, the second end of the second capacitor and the second end of the third capacitor are grounded, the second end of the magnetic bead, the first end of the fourth capacitor, the first end of the fifth capacitor and the first end of the sixth capacitor are respectively and electrically connected with the second power input end of the ql852_ qfn28 USB hub control subunit, and the second end of the fourth capacitor, the second end of the fifth capacitor and the second end of the sixth capacitor are grounded.
In a second aspect, the present invention further discloses an apparatus, including the USB expansion module control circuit of the first aspect.
The USB expansion module control circuit disclosed by the utility model has the following beneficial effects that: the USB expansion module, the module bottom plate and the crystal oscillator; the USB expansion module is electrically connected with the module bottom plate, and the module bottom plate is welded with a welding disc on the mainboard through a stamp hole; the USB expansion module comprises a USB hub control unit, a multi-port expansion unit and a power supply processing unit; the USB hub control unit comprises a ql852_ qfn28 hub control subunit, a crystal oscillator subunit, a reset subunit, a USB OC mode selection subunit and an overcurrent protection subunit; the first end to the eighth end of the ql852_ qfn28 USB hub control subunit are electrically connected with the first end to the eighth end of the multi-port expansion unit, respectively, the ninth end of the ql852_ qfn28 USB hub control subunit and the ninth end of the multi-port expansion unit are electrically connected with the reset subunit, respectively, the tenth end and the eleventh end of the ql852_ qfn28 USB hub control subunit are electrically connected with the tenth end and the eleventh end of the multi-port expansion unit, respectively, the twelfth end to the fifteenth end of the ql852_ qfn28 USB hub control subunit are electrically connected with the over-current protection subunit, respectively, the sixteenth end of the ql852_ qfn28 USB hub control subunit is electrically connected with the USB OC mode selection unit, and the power supply end of the ql _ 852 qfn28 USB hub control subunit and the power supply input end of the multi-port expansion unit are electrically connected. Therefore, the utility model can increase the compatibility of the mainboard to the USB expansion module; the utility model realizes the expansion of multi-path USB output signals through the ql852_ qfn28 USB hub control subunit, conforms to a universal serial bus, and has low power consumption and low cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
FIG. 1 is a schematic block diagram of a USB expansion module control circuit according to a preferred embodiment of the present invention;
FIG. 2 is a circuit diagram of a USB OC mode selection subunit of the USB expansion module control circuit according to another preferred embodiment of the present invention;
FIG. 3 is a circuit diagram of an over-current protection subunit of the USB expansion module control circuit according to the preferred embodiment of the present invention;
FIG. 4 is a circuit diagram of a reset subunit of the USB expansion module control circuit according to the preferred embodiment of the present invention;
FIG. 5 is a circuit diagram of a first power processing subunit of the USB expansion module control circuit according to the preferred embodiment of the present invention;
FIG. 6 is a circuit diagram of a second power processing subunit of the USB expansion module control circuit according to the preferred embodiment of the present invention;
FIG. 7 is a circuit diagram of a ql852_ qfn28 USB hub control subunit and a crystal oscillator subunit of a USB expansion module control circuit according to a preferred embodiment of the present invention;
FIG. 8 is a circuit diagram of a multi-port expansion unit of the USB expansion module control circuit according to the preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
Example one
Fig. 1, 7 and 8 show a preferred embodiment of the present invention, which includes a USB expansion module, a module bottom plate and a crystal oscillator; the USB expansion module is electrically connected with the module bottom plate, and the module bottom plate is welded with a welding disc on the mainboard through a stamp hole; the USB expansion module comprises a USB hub control unit 11, a multi-port expansion unit 12 and a power supply processing unit 13; the USB hub control unit comprises a ql852_ qfn28 hub control subunit 111, a crystal oscillator subunit 112, a reset subunit 113, a USB OC mode selection subunit 114 and an overcurrent protection subunit 115; the first to eighth ends DP1\ DM1, DP2\ DM2\ DP3\ DM3 and DP4\ DM4 of the ql852_ qfn28 USB hub control subunit are electrically connected to the first to eighth ends DP1\ DM1, DP2\ DM2\ DP2\ DM2 and DP2\ DM2 of the multi-port expansion unit 12, respectively, the ninth end RESET # of the ql852_ 2 USB hub control subunit and the ninth end of the multi-port expansion unit 12 are electrically connected to the RESET subunit 113, the tenth end DP2 and the tenth end DM2 of the ql852_ 2 USB hub control subunit are electrically connected to the tenth end upqdp 2 and the eleventh end UPDM 2 of the multi-port expansion unit 12, respectively, the twelfth to eighth ends DP1\ DM2 of the USB hub control subunit 852_ 2 are electrically connected to the USB ocg 2, respectively, and the USB over current protection cpu 2 of the USB hub control subunit 12 is electrically connected to the USB ocg 2, and the USB ocg 2, the power end of the ql 852-qfn 28 USB hub control subunit is electrically connected with the power input end of the multi-port extension unit 12. Therefore, the utility model can increase the compatibility of the mainboard to the USB expansion module; the utility model realizes the expansion of multi-path USB output signals through the ql852_ qfn28 USB hub control subunit, conforms to a universal serial bus, and has low power consumption and low cost.
Preferably, referring to fig. 2, the USB OC mode selection subunit 114 includes a first resistor R10; a first end of the first resistor R10 is electrically connected to a sixteenth end of the ql852_ qfn28 USB hub control subunit 11, and a second end of the first resistor R10 is electrically connected to the power processing unit 13.
Preferably, referring to fig. 3, the over-current protection subunit 115 includes a second resistor R4, a third resistor R5, a fourth resistor R6, and a fifth resistor R8; a first end of the second resistor R4, a first end of the third resistor R5, a first end of the fourth resistor R6, and a first end of the fifth resistor R8 are electrically connected to the twelfth end to the fifteenth end of the ql852_ qfn28 USB hub control subunit, respectively, and a second end of the second resistor R4, a second end of the third resistor R5, a second end of the fourth resistor R6, and a second end of the fifth resistor R8 are electrically connected to the power processing unit 13, respectively. It can be understood that the second resistor R4, the third resistor R5, the fourth resistor R6 and the fifth resistor R8 are all current-limiting resistors, which effectively prevents the fe1.1s _ qfn24 line concentration control subunit from being damaged by sudden large current.
Preferably, referring to fig. 4, the reset subunit 113 includes a sixth resistor R11 and a first capacitor C12; a first end of the sixth resistor R11 and a first end of the first capacitor C12 are electrically connected to a ninth end of the ql852_ qfn28 USB hub control subunit and a ninth end of the multi-port expansion unit 12, respectively, a second end of the sixth resistor R11 is electrically connected to the power processing unit 13, and a second end of the first capacitor C12 is grounded.
Preferably, referring to fig. 5 and fig. 6, the power processing unit 13 includes a first power processing subunit and a second power processing subunit; the first power supply processing subunit is electrically connected with the multi-port expansion unit 12, and the second power supply processing subunit is electrically connected with the ql852_ qfn28 USB hub control subunit.
Preferably, the second power processing unit 13 comprises a magnetic bead FB1, a second capacitor C1, a third capacitor C6, a fourth capacitor C2, a fifth capacitor C7 and a sixth capacitor C9; a first end of the magnetic bead FB1, a first end of the second capacitor C1, and a first end of the third capacitor C6 are electrically connected to a first power input terminal of the ql852_ qfn28 USB hub control subunit, a second end of the second capacitor C1 and a second end of the third capacitor are grounded, a second end of the magnetic bead FB1, a first end of the fourth capacitor C2, a first end of the fifth capacitor C7, and a first end of the sixth capacitor C9 are electrically connected to a second power input terminal of the ql852_ qfn28 USB hub control subunit, and a second end of the fourth capacitor C2, a second end of the fifth capacitor C7, and a second end of the sixth capacitor C9 are grounded.
Example two
In summary, the USB expansion module control circuit provided in the present invention includes a USB expansion module, a module board, and a crystal oscillator; the USB expansion module is electrically connected with the module bottom plate, and the module bottom plate is welded with a welding disc on the mainboard through a stamp hole; the USB expansion module comprises a USB hub control unit, a multi-port expansion unit 12 and a power supply processing unit 13; the USB hub control unit comprises a ql852_ qfn28 hub control subunit 111, a crystal oscillator subunit 112, a reset subunit 113, a USB OC mode selection subunit 114 and an overcurrent protection subunit 115; the first end to the eighth end of the ql852_ qfn28 USB hub control subunit are electrically connected with the first end to the eighth end of the multi-port extension unit 12 respectively, the ninth terminal of the ql852_ qfn28 USB hub control subunit and the ninth terminal of the multi-port extension unit 12 are electrically connected to the reset subunit 113 respectively, the tenth end and the eleventh end of the ql852_ qfn28 USB hub control subunit are electrically connected with the tenth end and the eleventh end of the multi-port extension unit 12 respectively, the twelfth to fifteenth ends of the ql852_ qfn28 USB hub control subunit are electrically connected to the over-current protection subunit 115 respectively, a sixteenth terminal of the ql852_ qfn28 USB hub control subunit is electrically connected to the USB OC mode selection unit, the power end of the ql 852-qfn 28 USB hub control subunit is electrically connected with the power input end of the multi-port extension unit 12. Therefore, the utility model can increase the compatibility of the mainboard to the USB expansion module; the utility model realizes the expansion of multi-path USB output signals through the ql852_ qfn28 USB hub control subunit, conforms to a universal serial bus, and has low power consumption and low cost.
The USB expansion module control circuit and the USB expansion module control device provided by the present invention are described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be a change in the specific implementation and application scope, and in summary, the content of the present specification is only an implementation of the present invention, and not a limitation to the scope of the present invention, and all equivalent structures or equivalent flow transformations made by the content of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention. And should not be construed as limiting the utility model.

Claims (7)

1. A USB expansion module control circuit, comprising: the USB expansion module, the module bottom plate and the crystal oscillator; the USB expansion module is electrically connected with the module bottom plate, and the module bottom plate is welded with a welding disc on the mainboard through a stamp hole; the USB expansion module comprises a USB hub control unit, a multi-port expansion unit and a power supply processing unit; the USB hub control unit comprises a ql852_ qfn28 hub control subunit, a crystal oscillator subunit, a reset subunit, a USB OC mode selection subunit and an overcurrent protection subunit; the first end to the eighth end of the ql852_ qfn28 USB hub control subunit are electrically connected with the first end to the eighth end of the multi-port extension unit respectively, the ninth end of the ql852_ qfn28 USB hub control subunit and the ninth end of the multi-port extension unit are electrically connected with the reset subunit respectively, the tenth end and the eleventh end of the ql852_ qfn28 USB hub control subunit are electrically connected with the tenth end and the eleventh end of the multi-port expansion unit respectively, the twelfth end to the fifteenth end of the ql852_ qfn28 USB hub control subunit are electrically connected to the over-current protection subunit respectively, a sixteenth terminal of the ql852_ qfn28 USB hub control subunit is electrically connected to the USB OC mode selection unit, the power end of the ql 852-qfn 28 USB hub control subunit is electrically connected with the power input end of the multi-port extension unit.
2. The USB expansion module control circuit of claim 1, wherein the USB OC mode selection subunit comprises a first resistor; the first end of the first resistor is electrically connected with the sixteenth end of the ql852_ qfn28 USB hub control subunit, and the second end of the first resistor is electrically connected with the power supply processing unit.
3. The USB expansion module control circuit according to claim 1, wherein the over-current protection subunit comprises a second resistor, a third resistor, a fourth resistor and a fifth resistor; the first end of the second resistor, the first end of the third resistor, the first end of the fourth resistor and the first end of the fifth resistor are electrically connected with the twelfth end to the fifteenth end of the ql852_ qfn28 USB hub control subunit, respectively, and the second end of the second resistor, the second end of the third resistor, the second end of the fourth resistor and the second end of the fifth resistor are electrically connected with the power processing unit, respectively.
4. The USB expansion module control circuit according to claim 1, wherein the reset subunit comprises a sixth resistor and a first capacitor; a first end of the sixth resistor and a first end of the first capacitor are electrically connected to a ninth end of the ql852_ qfn28 USB hub control subunit and a ninth end of the multiport extension unit, respectively, a second end of the sixth resistor is electrically connected to the power processing unit, and a second end of the first capacitor is grounded.
5. The USB expansion module control circuit of claim 1, wherein the power processing unit comprises a first power processing subunit and a second power processing subunit; the first power supply processing subunit is electrically connected with the multi-port expansion unit, and the second power supply processing subunit is electrically connected with the ql852_ qfn28 USB hub control subunit.
6. The USB expansion module control circuit of claim 5, wherein the second power supply processing unit comprises a magnetic bead, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a sixth capacitor; the first end of the magnetic bead, the first end of the second capacitor and the first end of the third capacitor are respectively and electrically connected with the first power input end of the ql852_ qfn28 USB hub control subunit, the second end of the second capacitor and the second end of the third capacitor are grounded, the second end of the magnetic bead, the first end of the fourth capacitor, the first end of the fifth capacitor and the first end of the sixth capacitor are respectively and electrically connected with the second power input end of the ql852_ qfn28 USB hub control subunit, and the second end of the fourth capacitor, the second end of the fifth capacitor and the second end of the sixth capacitor are grounded.
7. An apparatus comprising a USB expansion module control circuit as claimed in any one of claims 1 to 6.
CN202121216913.9U 2021-05-31 2021-05-31 USB expansion module control circuit and device Active CN216145181U (en)

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Application Number Priority Date Filing Date Title
CN202121216913.9U CN216145181U (en) 2021-05-31 2021-05-31 USB expansion module control circuit and device

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Application Number Priority Date Filing Date Title
CN202121216913.9U CN216145181U (en) 2021-05-31 2021-05-31 USB expansion module control circuit and device

Publications (1)

Publication Number Publication Date
CN216145181U true CN216145181U (en) 2022-03-29

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CN202121216913.9U Active CN216145181U (en) 2021-05-31 2021-05-31 USB expansion module control circuit and device

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CN (1) CN216145181U (en)

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