Analog switch CH482D-based SATA to USB protocol hard disk switcher

Abstract

The utility model provides an analog switch CH482D-based SATA (Serial Advanced Technology Attachment) to USB (Universal Serial Bus) protocol hard disk switcher, which relates to the technical field of computer hardware, and comprises a shell, two USB cables and a circuit board in the shell, the circuit board is provided with a power supply interface, an SATA interface, a first USB interface, a second USB interface, a main control chip, a first switching chip, a second switching chip and a power supply chip, the main control chip is electrically connected with the SATA interface, the first switching chip and the second switching chip, and the first switching chip and the second switching chip are both electrically connected with the first USB interface and the second USB interface. The SATA hard disk has the beneficial effects that the design is reasonable, the structure is simple, computer hardware damage caused by frequent hot plugging is avoided, and data transmission between the SATA hard disk and different computer equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of computer hardware, in particular to a SATA-to-USB protocol hard disk switch based on the analog switch CH482D. Background Art

[0002] With the continuous progress of computer technology and data storage technology, modern computer users have higher and higher requirements for data management and transmission. As a hard disk drive using a serial ATA interface, SATA hard disks (Serial ATA hard disks) are widely used because they can provide higher data transmission speeds and simpler connection methods. However, in many working environments, users need to share and transfer data between different computer systems, which requires users to be able to conveniently switch hard disk storage devices between different devices.

[0003] In the prior art, generally through a SATA-to-USB protocol adapter, the SATA hard disk is used in a state similar to a USB flash drive, and the SATA hard disk is transferred between two devices by hot plugging. However, when data needs to be frequently exchanged between computer devices, this transfer operation will prolong the operation time of data exchange, and the data transmission efficiency is low. At the same time, frequent hot plugging may damage computer hardware.

[0004] How to solve the above technical problems is the subject faced by the present utility model. Content of the Utility Model

[0005] In order to solve the deficiencies of the prior art, the present utility model provides a SATA-to-USB protocol hard disk switch based on the analog switch CH482D, which has a reasonable design, a simple structure, avoids damage to computer hardware caused by frequent hot plugging, and facilitates data transmission between SATA hard disks and different computer devices.

[0006] The technical solution adopted by the present utility model to solve its technical problems is: The present utility model provides a SATA-to-USB protocol hard disk switch based on the analog switch CH482D, including a housing, two USB cables, and a circuit board inside the housing. The circuit board is provided with a power interface, a SATA interface, a first USB interface, a second USB interface, a main control chip, a first switching chip, a second switching chip, and a power chip. The main control chip is electrically connected to the SATA interface, the first switching chip, and the second switching chip, and both the first switching chip and the second switching chip are electrically connected to the first USB interface and the second USB interface.

[0007] Preferably, both of the two USB cables are USB3.1 Gen2 cables.

[0008] Preferably, the main control chip adopts the ASM1153E main control chip.

[0009] Preferably, the main control chip is also connected with a crystal oscillator.

[0010] Preferably, both the first switching chip and the second switching chip adopt the analog switch chip CH482D.

[0011] Preferably, the power supply interface is connected to the first USB interface, the second USB interface and the SATA interface, and the power supply chip is connected to the main control chip, the first switching chip and the second switching chip.

[0012] Preferably, the input voltage of the power supply chip is 5V and the output voltage is 3.3V.

[0013] The beneficial effects of the present utility model are as follows: The conversion from SATA signal to USB signal is realized through the SATA interface and the main control chip. Both the first switching chip and the second switching chip are electrically connected to the first USB interface and the second USB interface. The distribution of the USB signal to the first USB interface or the second USB interface is realized by controlling the first switching chip and the second switching chip through control signals. Furthermore, the switching of computer devices is completed through the USB cable, which facilitates the transmission of data between different computer devices, avoids frequent hot plugging, effectively improves the data transmission efficiency, and avoids damage to computer hardware caused by frequent hot plugging. The signal distribution is jointly completed by the first switching chip and the second switching chip to prevent signal transmission interruption caused by insufficient chip resources. The main control chip is connected with a crystal oscillator to provide a stable clock signal, which is used to synchronize various operations inside the chip to ensure the accuracy and consistency of data transmission and processing. The power supply chip provides the voltages required for the normal operation of the main control chip, the first switching chip and the second switching chip. The power supply interface is connected to the first USB interface, the second USB interface and the SATA interface. When the hard disk capacity is too large, external power supply is used for additional power supply to avoid data transmission interruption caused by insufficient power supply. Description of the Drawings

[0014] Figure 1 It is a circuit connection relationship diagram of the circuit board of the present utility model.

[0015] Among them, the reference numerals are: 1. Power supply interface; 2. SATA interface; 3. First USB interface; 4. Second USB interface; 5. Main control chip; 6. First switching chip; 7. Second switching chip; 8. Power supply chip; 9. Crystal oscillator. Detailed Embodiments

[0016] In order to clearly illustrate the technical features of the present solution, the present solution will be elaborated below through specific embodiments.

[0017] See Figure 1 As shown, this embodiment is a SATA-to-USB protocol hard disk switch based on the analog switch CH482D, including a housing, two USB cables, and a circuit board inside the housing. The circuit board is provided with a power interface 1, a SATA interface 2, a first USB interface 3, a second USB interface 4, a main control chip 5, a first switching chip 6, a second switching chip 7, and a power chip 8. The main control chip 5 is electrically connected to the SATA interface 2, the first switching chip 6, and the second switching chip 7. Both the first switching chip 6 and the second switching chip 7 are electrically connected to the first USB interface 3 and the second USB interface 4. The SATA interface 2 is connected to a SATA hard disk. Both USB cables are USB3.1 Gen2 cables. One is connected to the first USB interface 3 and a computer device A, and the other is connected to the second USB interface 4 and a computer device B. The USB3.1 Gen2 cable has a higher data transmission speed, which can improve the efficiency of data transmission.

[0018] The main control chip 5 uses an ASM1153E main control chip and is connected to a crystal oscillator 9. The ASM1153E main control chip converts the SATA signal into a USB signal, realizing the data transmission between the SATA hard disk and the computer device. The main control chip 5 is connected to the crystal oscillator 9 to provide a stable clock signal, which is used to synchronize various operations inside the chip, ensuring the accuracy and consistency of data transmission and processing.

[0019] Both the first switching chip 6 and the second switching chip 7 use the analog switch chip CH482D. By controlling signals, the first switching chip 6 and the second switching chip 7 are controlled to achieve the distribution of the USB signal to the first USB interface or the second USB interface, and then the computer device is switched through the USB cable. The two switching chips jointly complete the signal distribution, preventing signal transmission interruption caused by insufficient chip resources.

[0020] The power interface 1 is connected to the first USB interface 3, the second USB interface 4, and the SATA interface 2. The input voltage of the power chip 8 is 5V, and the output voltage is 3.3V. The power chip 8 is connected to the main control chip 5, the first switching chip 6, and the second switching chip 7. The power chip 8 provides the voltage required for the normal operation of the main control chip 5, the first switching chip 6, and the second switching chip 7. The power interface 1 is connected to the first USB interface 3, the second USB interface 4, and the SATA interface 2. When the hard disk capacity is too large, an external power supply is used for additional power supply to avoid data transmission interruption caused by insufficient power supply.

[0021] When the utility model is actually used: Connect the SATA interface 2 to the SATA hard disk, connect the first USB interface 3 and the computer device A with a USB3.1 Gen2 cable, connect the second USB interface 4 and the computer device B with another USB3.1 Gen2 cable, and provide the voltage required for normal operation for each interface and chip through the power interface 1 and the power chip 8. The SATA signal input is converted into a USB3.0 signal by the ASM1153E main control chip, and the first switching chip 6 or the second switching chip 7 is controlled through the control signal to distribute the USB3.0 signal to the first USB interface 3 or the second USB interface 4, and then the data signal is transmitted to the computer device A or the computer device B.

[0022] The technical features not described in the present utility model can be realized by or adopted the prior art, and will not be elaborated here. Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A SATA to USB protocol hard disk switch based on analog switch CH482D, characterized in that: The invention comprises a housing, two USB cables and a circuit board in the housing, wherein the circuit board is provided with a power interface (1), a SATA interface (2), a first USB interface (3), a second USB interface (4), a main control chip (5), a first switching chip (6), a second switching chip (7) and a power chip (8), wherein the main control chip (5) is electrically connected to the SATA interface (2), the first switching chip (6) and the second switching chip (7), and the first switching chip (6) and the second switching chip (7) are both electrically connected to the first USB interface (3) and the second USB interface (4).

2. The SATA to USB protocol hard disk switch based on the analog switch CH482D according to claim 1 is characterized in that: Both of the USB cables are USB3.1 Gen2 cables.

3. The SATA to USB protocol hard disk switch based on the analog switch CH482D according to claim 1, characterized in that: The main control chip (5) adopts an ASM1153E main control chip.

4. The SATA to USB protocol hard disk switch based on the analog switch CH482D according to claim 3 is characterized in that: The main control chip (5) is also connected to a crystal oscillator (9).

5. The SATA to USB protocol hard disk switch based on the analog switch CH482D according to claim 1, characterized in that: The first switching chip (6) and the second switching chip (7) both adopt the analog switch chip CH482D.

6. The SATA to USB protocol hard disk switch based on the analog switch CH482D according to claim 1, characterized in that: The power interface (1) is connected to the first USB interface (3), the second USB interface (4) and the SATA interface (2), and the power chip (8) is connected to the main control chip (5), the first switching chip (6) and the second switching chip (7).

7. The SATA to USB protocol hard disk switch based on the analog switch CH482D according to claim 6, characterized in that: The power chip (8) has an input voltage of 5V and an output voltage of 3.3V.

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