Power supply circuit of solid state disk

Abstract

The utility model relates to the technical field of power supply circuits, in particular to a power supply circuit of a solid state disk, which comprises a power supply detection module, a power supply module and a voltage conversion module, the power supply detection module, the power supply module and the voltage conversion module are connected in sequence, and the power supply detection module is used for detecting power supply voltage of an equipment end; the power supply module is used for supplying power to the solid state disk; and the voltage conversion module is used for converting a high level into a working voltage of the solid state disk, so that flexible switching and intelligent management of power supply modes of the enterprise-level solid state disk are realized, and a more efficient, stable and safe storage solution is provided for enterprise-level application.

Description

Technical Field

[0001] This application relates to the technical field of power supply circuits, and particularly to a power supply circuit for a solid state drive. Background Art

[0002] With the rapid development of information technology, as the core infrastructure supporting various enterprise-level applications and services, data centers have put forward unprecedented high standards for the performance, reliability, and maintainability of storage devices. Enterprise Solid State Drives (eSSDs), as outstanding representatives of modern data storage technologies, have emerged and gradually become key components to meet these stringent requirements.

[0003] Compared with consumer-grade solid state drives, enterprise solid state drives have been optimized and upgraded in many aspects in design to better serve enterprise-level application scenarios with extremely high requirements for performance, stability, and security. Specifically, enterprise solid state drives have the following remarkable features:

[0004] Excellent performance: By adopting advanced storage architectures and high-speed interface technologies, enterprise solid state drives achieve high-speed data transmission and the ability to instantly process massive amounts of data, effectively coping with the complex and changing data processing requirements in the enterprise environment and significantly improving business operation efficiency.

[0005] High reliability: In terms of data reliability and stability, enterprise solid state drives significantly extend their service life and reduce the failure rate by optimizing internal algorithms, enhancing error correction capabilities, and using high-durability storage media, ensuring the continuous security and stability of enterprise data.

[0006] Enhanced maintainability and security: To meet the high requirements of enterprise-level applications for operation and maintenance efficiency and data security, enterprise solid state drives not only support convenient maintenance functions such as hot plugging, but also integrate advanced data encryption and remote management technologies to achieve comprehensive protection and management of stored data.

[0007] Wide application fields: Due to their excellent performance and stability, enterprise solid state drives are widely used in data centers of key industries such as the Internet, cloud services, finance, and telecommunications operators, becoming an important cornerstone to support the efficient operation and continuous innovation of these industries.

[0008] In addition, with the continuous progress of technology, enterprise-level solid-state drives (SSDs) have also undergone important changes in their power supply modes. Traditionally, enterprise-level SSDs mostly used a single 5V or 12V power supply mode to meet the power requirements of different devices. However, with the improvement of read / write performance and the continuous increase in storage capacity, problems such as voltage drop and heat generation faced by the 5V power supply mode when the load increases have become increasingly prominent, affecting the overall stability and efficiency of the system. Therefore, some high-capacity and high-performance enterprise-level SSDs have started to use 12V power supply as the main power source to provide more stable and efficient power support. However, there is still a problem in the current market that the power supply mode is fixed and cannot be flexibly switched according to actual needs, which limits the wide application of enterprise-level SSDs in different device environments. Summary of the Invention

[0009] In order to overcome the deficiencies of the prior art, this application provides a power supply circuit for a solid-state drive, which realizes flexible switching and intelligent management of the power supply mode of enterprise-level solid-state drives, thereby providing a more efficient, stable, and secure storage solution for enterprise applications.

[0010] The technical means adopted by the present invention to solve its technical problems is: a power supply circuit for a solid-state drive, which is improved in that it includes a power detection module, a power supply module, and a voltage conversion module. The power detection module, the power supply module, and the voltage conversion module are connected in sequence. The power detection module is used to detect the power supply voltage of the device end; the power supply module is used to supply power to the solid-state drive; the voltage conversion module is used to convert the high level into the working voltage of the solid-state drive.

[0011] In the above technical solution, the power detection module includes a capacitor CR1, a resistor R73, a resistor R77, a resistor R100, a resistor R101, and a triode Q5. Among them, the base of the triode Q5 is respectively connected to one ends of the resistor R100 and the resistor R101. The other end of the resistor R101 is connected to the 12V high level, and the other end of the resistor R100 is grounded; the emitter of the triode Q5 is connected to the 5V high level; the collector of the triode Q5 is connected to one ends of the resistor R73 and the resistor R77. The other end of the resistor R73 is connected to one end of the capacitor CR1 and grounded, and the other end of the resistor R77 and the other end of the capacitor CR1 are connected to the power supply module.

[0012] In the above technical solution, the voltage conversion module includes a step-down voltage regulator U2, a capacitor CX1, a resistor R97, a resistor R98, a capacitor Cbs, an inductor L1, a capacitor Cvcc1, a capacitor Cbyp1, a resistor R87, a capacitor Cff1, a resistor RA1, a resistor RB1, a capacitor CX2, a resistor CX3, and a resistor CX4. Among them, the second pin of the step-down voltage regulator U2 is connected to the 12V high level, one end of the capacitor CX1, and one end of the resistor R97, and the other end of the capacitor CX1 is grounded; the other end of the resistor R97 is connected to one end of the resistor R98 and the 12th pin of the step-down voltage regulator U2, and the other end of the resistor R98 is connected to the 7th pin, the EP pin of the step-down voltage regulator U2, and grounded; the first pin of the step-down voltage regulator U2 is connected to the capacitor Cbs and the inductor L1 and then connected to the power supply module; the 14th pin of the step-down voltage regulator U2 is connected to the resistor R87 and the capacitor Cff1 and then connected to the power supply module; the other end of the capacitor Cff1 is connected to the resistor RA1 and the resistor RB1 and then grounded; the 14th pin of the step-down voltage regulator U2 is also connected to one end of the resistor RA1; the 15th pin of the step-down voltage regulator U2 is connected to the capacitor Cbyp1 and then grounded, and the 17th pin of the step-down voltage regulator U2 is connected to the capacitor Cvcc1 and then grounded; the 15th pin and the 8th pin of the step-down voltage regulator U2 are directly grounded.

[0013] In the above technical solution, the power supply module includes a first power supply module and a second power supply module. Among them, the first power supply module is directly connected to the 5V power supply terminal, and the second power supply module is connected to the voltage conversion module and then connected to the 12V high level.

[0014] In the above technical solution, the first power supply module includes a hot-swap controller U3, a zener diode ZD5, a capacitor C37, a capacitor C38, a resistor R76, a capacitor C35, a capacitor C36, and a capacitor C89. Among them, the first pin of the plug-in controller U3 is connected to the 5V power supply terminal, one end of the zener diode ZD5, and one end of the capacitor C37, and the other ends of the zener diode ZD5 and the capacitor C37 are grounded; the second pin of the plug-in controller U3 is connected to the solid-state drive and one ends of the capacitor C35, the capacitor C36, and the capacitor C89, and the other ends of the capacitor C35, the capacitor C36, and the capacitor C89 are grounded; the 8th pin of the plug-in controller U3 is grounded through the resistor R87; the 7th pin of the plug-in controller U3 is grounded through the capacitor C38.

[0015] In the above technical solution, the second power supply module includes a hot-swap controller U4, a voltage stabilizing diode ZD6, a capacitor C808, a capacitor C810, a resistor R78, a capacitor C811, a capacitor C809, and a capacitor C812. Among them, the first pin of the plug controller U4 is connected to the voltage conversion module, one end of the voltage stabilizing diode ZD6 and the capacitor C808, and the other ends of the voltage stabilizing diode ZD6 and the capacitor C808 are grounded; the second pin of the plug controller U4 is connected to the solid-state drive, and one end of the capacitor C811, the capacitor C809, and the capacitor C812, and the other ends of the capacitor C811, the capacitor C809, and the capacitor C812 are grounded; the eighth pin of the plug controller U4 is grounded through the resistor R78; the seventh pin of the plug controller U3 is grounded through the capacitor C810.

[0016] In the above technical solution, an indicator LED2 is also connected between the 5V power supply terminal and the first power supply module; an indicator LED1 is also connected between the voltage conversion module and the second power supply module.

[0017] The beneficial effect of this application is that by adopting a low-cost, high-efficiency, and stable circuit, the traditional enterprise-level solid-state drive has the function of actively switching to select the best power supply method, realizing the flexible switching and intelligent management of the power supply mode of the enterprise-level solid-state drive, thereby providing a more efficient, stable, and secure storage solution for enterprise-level applications. Description of the Drawings

[0018] Figure 1 It is a structural block diagram of a power supply circuit of a solid-state drive shown in an exemplary embodiment of the present invention;

[0019] Figure 2 It is a circuit diagram of the first power supply module shown in an exemplary embodiment of the present invention;

[0020] Figure 3 It is a circuit diagram of the second power supply module shown in an exemplary embodiment of the present invention;

[0021] Figure 4 It is a circuit diagram of the power supply detection module shown in an exemplary embodiment of the present invention;

[0022] Figure 5 It is a circuit diagram of the voltage conversion module shown in an exemplary embodiment of the present invention;

[0023] Figure 6 It is a schematic diagram of LED lamp indication shown in an exemplary embodiment of the present invention. Detailed Embodiment

[0024] The present invention will be further described below with reference to the drawings and embodiments.

[0025] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts all fall within the scope of protection of the present utility model. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to specific implementation situations. The various technical features in the creation of the present utility model can be combined interactively on the premise of not conflicting with each other.

[0026] As Figure 1 shown, the present utility model provides a power supply circuit for a solid-state drive, including a power detection module 10, a power supply module 20 and a voltage conversion module 30. The power detection module 10, the power supply module 20 and the voltage conversion module 30 are connected in sequence. The power detection module 10 is used to detect the power supply voltage of the device end; the power supply module 20 is used to supply power to the solid-state drive; the voltage conversion module 30 is used to convert the high level into the working voltage of the solid-state drive.

[0027] In a possible implementation manner, the power supply module 20 includes a first power supply module 201 and a second power supply module 202. Among them, the first power supply module 201 is directly connected to the 5V power supply terminal, and the second power supply module 202 is connected to the voltage conversion module 30 and then connected to the 12V high level.

[0028] In an exemplary embodiment, as Figure 2 shown, the first power supply module 201 includes a hot-swap controller U3, a voltage regulator diode ZD5, a capacitor C37, a capacitor C38, a resistor R76, a capacitor C35, a capacitor C36 and a capacitor C89. Taking the model of the hot-swap controller U3 as SY6896RYC as an example, but it does not constitute a specific limitation. Among them,

[0029] The first pin of the plug-and-play controller U3 is connected to the 5V power supply terminal and one ends of the voltage regulator diode ZD5 and the capacitor C37, and the other ends of the voltage regulator diode ZD5 and the capacitor C37 are grounded;

[0030] The second pin of the plug-and-play controller U3 is connected to the solid-state drive and one ends of the capacitor C35, the capacitor C36 and the capacitor C89, and the other ends of the capacitor C35, the capacitor C36 and the capacitor C89 are grounded;

[0031] The 8th pin of the plug-and-play controller U3 is grounded after passing through the resistor R87; the 7th pin of the plug-and-play controller U3 is grounded after passing through the capacitor C38.

[0032] In another exemplary embodiment, as Figure 3 shown, the second power supply module 202 includes a hot-swap controller U4, a voltage-regulating diode ZD6, capacitors C808, C810, a resistor R78, capacitors C811, C809, and capacitor C812. Taking the model of the hot-swap controller U4 as SY6896RYC as an example, but it does not constitute a specific limitation. Among them,

[0033] The 1st pin of the plug-and-play controller U4 is connected to one end of the voltage conversion module, the voltage-regulating diode ZD6, and the capacitor C808, and the other ends of the voltage-regulating diode ZD6 and the capacitor C808 are grounded;

[0034] The 2nd pin of the plug-and-play controller U4 is connected to the solid-state drive and one end of the capacitors C811, C809, and C812, and the other ends of the capacitors C811, C809, and C812 are grounded;

[0035] The 8th pin of the plug-and-play controller U4 is grounded after passing through the resistor R78; the 7th pin of the plug-and-play controller U3 is grounded after passing through the capacitor C810.

[0036] In a possible implementation manner, as Figure 4 shown, the power supply detection module 10 includes a capacitor CR1, resistors R73, R77, R100, R101, and a triode Q5. Among them,

[0037] The base of the triode Q5 is respectively connected to one end of the resistors R100 and R101. The other end of the resistor R101 is connected to a 12V high level, and the other end of the resistor R100 is grounded;

[0038] The emitter of the triode Q5 is connected to a 5V high level;

[0039] The collector of the triode Q5 is connected to one end of the resistors R73 and R77. The other end of the resistor R73 is connected to one end of the capacitor CR1 and grounded, and the other end of the resistor R77 and the other end of the capacitor CR1 are connected to the power supply module.

[0040] By detecting whether there is power supply for H12V, it controls whether the plug-in controller U3 works. When there is power supply for H12V and the voltage is 12V, the power detection module provides a low-level signal for EN of the plug-in controller U3, and the plug-in controller U3 stops working. When there is no power supply for H12V and the voltage is 0V, the detection circuit provides a high-level signal for EN of U3, and U3 works;

[0041] When the H12V voltage is 12V, the base of the NPN transistor Q5 is at a high level, the emitter and collector are disconnected, and U3_EN is pulled down by the resistor R73, and U3_EN is at a low level; when the H12V voltage is 0V, the emitter of the NPN transistor Q5 is pulled down through the resistor R100, the emitter and collector are conducting, and U3_EN is at a high level. Then, U3_EN controls whether the plug-in controller U3 works through high and low levels; in addition, when U3_EN is at a high level, the capacitor CR1 charges to cause a delay in the U3_EN signal, avoiding mutual charging of the H5V I outputs of the plug-in controller U4 and the plug-in controller U3 in special cases.

[0042] When the device end provides both 12V and 5V power supplies simultaneously, the enterprise-class solid-state drive preferentially switches to 12V power supply. When there is only 5V power supply, the enterprise-class solid-state drive switches to 5V power supply.

[0043] In a possible implementation, as Figure 5 shown, the voltage conversion module 30 includes a step-down voltage regulator U2, a capacitor CX1, a resistor R97, a resistor R98, a capacitor Cbs, an inductor L1, a capacitor Cvcc1, a capacitor Cbyp1, a resistor R87, a capacitor Cff1, a resistor RA1, a resistor RB1, a capacitor CX2, a resistor CX3, and a resistor CX4. Taking the model of the step-down voltage regulator U2 as SY8254RAC as an example, but it does not constitute a specific limitation. Among them,

[0044] The second pin of the step-down voltage regulator U2 is connected to the 12V high level, the capacitor CX1, and one end of the resistor R97, and the other end of the capacitor CX1 is grounded; the other end of the resistor R97 is connected to one end of the resistor R98 and the 12th pin of the step-down voltage regulator U2, and the other end of the resistor R98 is connected to the 7th pin, the EP pin of the step-down voltage regulator U2 and grounded;

[0045] The first pin of the step-down voltage regulator U2 is connected to the capacitor Cbs and the inductor L1 and then connected to the power supply module;

[0046] The 14th pin of the step-down voltage regulator U2 is connected to the resistor R87 and the capacitor Cff1 and then connected to the power supply module; the other end of the capacitor Cff1 is connected to the resistor RA1 and the resistor RB1 and then grounded; the 14th pin of the step-down voltage regulator U2 is also connected to one end of the resistor RA1;

[0047] The 15th pin of the step-down voltage regulator U2 is grounded after being connected to the capacitor Cbyp1, and the 17th pin of the step-down voltage regulator U2 is grounded after being connected to the capacitor Cvcc1; the 15th pin and the 8th pin of the step-down voltage regulator U2 are directly grounded.

[0048] Among them, H5V is the 5V power supply for the device end, and H12V is the 12V power supply for the device end. H5V powers the enterprise-level solid-state drive through the hot-swap controller U3 (H5V I), and H12V converts 12V to 5V through the step-down voltage regulator U2, and then powers the enterprise-level solid-state drive through the plug-and-play controller U4 (H5V I).

[0049] In a possible implementation, as Figure 6 shown, an indicator light LED2 is also connected between the 5V power supply terminal and the first power supply module 201; an indicator light LED1 is also connected between the voltage conversion module and the second power supply module 202. After the hot-swap controller U3 works stably, the U3_PG outputs a signal, and LED2 lights up. When the hot-swap controller U2 runs stably and reaches 90%-120% efficiency, the U3_PG outputs a signal, and LED1 lights up; LED2 lighting up indicates stable 5V power supply, and LED1 lighting up indicates stable 12V power supply.

[0050] The beneficial effects of the present utility model are as follows: A power supply detection circuit is built using low-cost components such as NPN transistors, resistors, and LEDs, enabling traditional enterprise-level solid-state drives to have the function of actively switching to select the best power supply method; using the capacitor charging delay effect to build a timing sequence to avoid mutual charging caused by dual-channel synchronous power-on in special cases; realizing the current power supply mode through two LED lights; achieving flexible switching and intelligent management of the power supply mode of enterprise-level solid-state drives, thereby providing a more efficient, stable, and secure storage solution for enterprise applications.

[0051] The above is a specific description of the preferred embodiment of the present utility model. However, the present utility model is not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A power supply circuit for a solid-state drive, characterized in that, It includes a power detection module, a power supply module, and a voltage conversion module. The power detection module, the power supply module, and the voltage conversion module are connected in sequence. The power detection module is used to detect the power supply voltage of the device end; the power supply module is used to supply power to the solid-state drive; the voltage conversion module is used to convert the high level into the working voltage of the solid-state drive.

2. The power supply circuit of the solid state drive according to claim 1, wherein The power detection module includes a capacitor CR1, a resistor R73, a resistor R77, a resistor R100, a resistor R101, and a triode Q5. Among them, The base of the triode Q5 is respectively connected to one ends of the resistor R100 and the resistor R101. The other end of the resistor R101 is connected to the 12V high level, and the other end of the resistor R100 is grounded; The emitter of the triode Q5 is connected to the 5V high level; The collector of the triode Q5 is connected to one ends of the resistor R73 and the resistor R77. The other end of the resistor R73 is connected to one end of the capacitor CR1 and grounded. The other end of the resistor R77 and the other end of the capacitor CR1 are connected to the power supply module.

3. The power supply circuit of the solid state drive according to claim 1, characterized in that The voltage conversion module includes a buck regulator U2, a capacitor CX1, a resistor R97, a resistor R98, a capacitor Cbs, an inductor L1, a capacitor Cvcc1, a capacitor Cbyp1, a resistor R87, a capacitor Cff1, a resistor RA1, a resistor RB1, a capacitor CX2, a resistor CX3, and a resistor CX4. Among them, The second pin of the buck regulator U2 is connected to the 12V high level, the capacitor CX1, and one end of the resistor R97. The other end of the capacitor CX1 is grounded; the other end of the resistor R97 is connected to one end of the resistor R98 and the twelfth pin of the buck regulator U2. The other end of the resistor R98 is connected to the seventh pin, the EP pin of the buck regulator U2 and grounded; The first pin of the buck regulator U2 is connected to the capacitor Cbs and the inductor L1 and then connected to the power supply module; The fourteenth pin of the buck regulator U2 is connected to the resistor R87 and the capacitor Cff1 and then connected to the power supply module; the other end of the capacitor Cff1 is connected to the resistor RA1 and the resistor RB1 and then grounded; the fourteenth pin of the buck regulator U2 is also connected to one end of the resistor RA1; The fifteenth pin of the buck regulator U2 is connected to the capacitor Cbyp1 and then grounded. The seventeenth pin of the buck regulator U2 is connected to the capacitor Cvcc1 and then grounded; the fifteenth pin and the eighth pin of the buck regulator U2 are directly grounded.

4. The power supply circuit of the solid state drive according to claim 1, characterized in that, The power supply module includes a first power supply module and a second power supply module. Among them, the first power supply module is directly connected to the 5V power supply terminal, and the second power supply module is connected to the voltage conversion module and then connected to the 12V high level.

5. The power supply circuit of the solid state drive according to claim 4, characterized in that, The first power supply module includes a hot-swap controller U3, a zener diode ZD5, a capacitor C37, a capacitor C38, a resistor R76, a capacitor C35, a capacitor C36, and a capacitor C89. Among them, The first pin of the plug-and-play controller U3 is connected to the 5V power supply terminal, as well as one end of the voltage stabilizing diode ZD5 and the capacitor C37. The other ends of the voltage stabilizing diode ZD5 and the capacitor C37 are grounded; The second pin of the plug-and-play controller U3 is connected to the solid-state drive, as well as one end of the capacitors C35, C36, and C89. The other ends of the capacitors C35, C36, and C89 are grounded; The eighth pin of the plug-and-play controller U3 is grounded through the resistor R87; the seventh pin of the plug-and-play controller U3 is grounded through the capacitor C38.

6. The power supply circuit of the solid state drive according to claim 4, characterized in that, The second power supply module includes a hot-swap controller U4, a voltage stabilizing diode ZD6, capacitors C808, C810, a resistor R78, capacitors C811, C809, and C812, where The first pin of the plug-and-play controller U4 is connected to the voltage conversion module, as well as one end of the voltage stabilizing diode ZD6 and the capacitor C808. The other ends of the voltage stabilizing diode ZD6 and the capacitor C808 are grounded; The second pin of the plug-and-play controller U4 is connected to the solid-state drive, as well as one end of the capacitors C811, C809, and C812. The other ends of the capacitors C811, C809, and C812 are grounded; The eighth pin of the plug-and-play controller U4 is grounded through the resistor R78; the seventh pin of the plug-and-play controller U3 is grounded through the capacitor C810.

7. The power supply circuit of the solid state drive according to claim 4, characterized in that An indicator LED2 is also connected between the 5V power supply terminal and the first power supply module; an indicator LED1 is also connected between the voltage conversion module and the second power supply module.

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