Miniature power supply time sequence protection plate structure
By soldering four sets of timing protection boards on the USB adapter board and setting a timing protection circuit component with a delay function, the overload and timing anomaly problems during the interface combination in the solid-state drive card startup test are solved, and safe and reliable power supply control is achieved.
Patent Information
- Application Number
- CN202422573094.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-22
AI Technical Summary
During the SSD power-on test, a group of four test interfaces can easily cause switches to spark and heat up under full load, leading to power supply burnout and abnormal power-on sequence, which cannot be accurately located.
A micro power timing protection board structure is designed. By welding four sets of timing protection boards on the USB adapter board and setting timing protection circuit components on the post-stage protection board, the delay function is used to control the power supply sequence of the interface to avoid instantaneous overload.
It effectively avoids overload problems caused by simultaneous power-on, improves transient surge current and power-on sequence anomalies, and improves safety and reliability.
Smart Images
Figure CN223402448U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic equipment, in particular to a micro power supply timing protection board structure. Background Art
[0002] Solid-state drive (SSD) card-opening testing involves using a specific mass-production tool (also known as card-opening software) to write firmware to the SSD, enabling the computer to correctly identify the SSD's capacity, format, manufacturer, and other information. Solid-state drive (SSD) card-opening testing involves burning firmware into the SSD.
[0003] SSD commissioning testing requires connecting to a computer via a USB adapter board. In practice, multiple USB adapter boards are often combined in groups of 8 or multiples of 8 to synchronize multiple interfaces and improve efficiency. A common combination is 16 test interfaces, each with its own switch, which is time-consuming. However, grouping each interface into groups of four, with one switch controlling all four, offers a more efficient solution.
[0004] However, when a group of four test interfaces are fully loaded, the switch will trigger a spark when it is turned on and off. The instantaneous overload causes the switch and circuit to heat up, and in severe cases, the power supply will be burned out. In addition, the power-on sequence will be abnormal, causing drive letter confusion and inability to accurately locate the device. Utility Model Content
[0005] In view of the above problems, the present invention is proposed to provide a micro power supply timing protection board structure that overcomes the above problems or at least partially solves the above problems.
[0006] The utility model provides a micro power supply timing protection board structure, the micro power supply timing protection board structure includes: a USB adapter board, four groups of timing protection boards and a timing protection circuit assembly, the four groups of timing protection boards are all welded on the USB adapter board, the four groups of timing protection boards have the same structure, namely a first timing circuit protection board, a second timing circuit protection board, a third timing circuit protection board and a fourth timing circuit protection board, the four groups of timing protection boards respectively provide four groups of test interfaces; wherein, the first timing circuit protection board, the second timing circuit protection board, the third timing circuit protection board and the fourth timing circuit protection board The sequential circuit protection boards are connected in series in sequence through cables to form a multi-stage drive control circuit. The second sequential circuit protection board, the third sequential circuit protection board and the fourth sequential circuit protection board are respectively provided with the sequential protection circuit components. The input end of the first sequential circuit protection board is connected to the power input port, and the output end of the first sequential circuit protection board is connected to the input end of the sequential protection circuit component on the second sequential circuit protection board of the next stage. Except for the first sequential circuit protection board, the output ends of the sequential protection circuit components on the sequential protection board of the previous stage are all connected to the input end of the sequential protection circuit component of the next stage.
[0007] Optionally, the timing protection board includes a circuit board, a DC socket and a switch, the DC socket and the switch are respectively welded on the circuit board, and the circuit board is connected to the test interface.
[0008] Optionally, the switch on the first sequential circuit protection board is connected to the test interface and the input end of the sequential circuit protection circuit component on the second sequential circuit protection board respectively.
[0009] Optionally, the output end of the timing protection circuit component is connected to the DC socket and the switch on the same group of timing protection boards, and is connected to the input end of the timing protection circuit component on the next group of timing protection boards.
[0010] Optionally, the timing protection circuit component is arranged on the circuit board, and the timing protection circuit component includes an overvoltage protection chip, a circuit support component, a first ground terminal, a second ground terminal, a first input terminal, a first output terminal, a second input terminal and a second output terminal, and the circuit support component, the first ground terminal, the second ground terminal, the first input terminal, the first output terminal, the second input terminal and the second output terminal are electrically connected to the overvoltage protection chip respectively.
[0011] Optionally, the product model of the overvoltage protection chip is SY6875.
[0012] Optionally, the overvoltage protection chip includes 11 pins, and the circuit support components include a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; pins 1-3 of the overvoltage protection chip are connected to one end of the first capacitor in common with the second input end, and the other end of the first capacitor is grounded; one end of the first resistor is connected to pin 7 of the overvoltage protection chip, and the other end of the first resistor is connected to the first input end; one end of the second resistor is connected to the pin of the overvoltage protection chip, and the other end of the second resistor is grounded; one end of the second capacitor is connected to the pin of the overvoltage protection chip 7, the other end of the second capacitor is grounded; one end of the first capacitor is connected to the second input end, and the other end of the first capacitor is grounded; one end of the third resistor is connected to pin 4 of the overvoltage protection chip, and the other end of the third resistor is grounded; one end of the third capacitor is connected to pin 6 of the overvoltage protection chip, and the other end of the third capacitor is grounded; one end of the fourth resistor is connected to pin 5 of the overvoltage protection chip, and the other end of the fourth resistor is grounded; pins 8-10 of the overvoltage protection chip and one end connected in common with the fourth capacitor are connected to the output end, and the other end of the fourth capacitor is grounded; pin 11 of the overvoltage protection chip is grounded.
[0013] The technical solution provided in the embodiments of the present invention has at least the following technical effects or advantages:
[0014] The micro power supply timing protection board structure described in the embodiment of the present invention achieves timing control and overvoltage and overcurrent protection effects based on the delay function of the timing protection circuit assembly by arranging timing protection circuit components on the three groups of timing protection boards at the subsequent stage, and improving the defects of transient surge current and power-on timing abnormality, thereby improving safety.
[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0017] Figure 1 This is a schematic diagram of the principle structure of the micro power supply timing protection board structure of the utility model;
[0018] Figure 2 It is a structural diagram of the timing protection board;
[0019] Figure 3 It is a structural diagram of a timing protection circuit component;
[0020] Figure 4 This is a circuit reference schematic diagram of the timing protection circuit component.
[0021] Description of reference numerals:
[0022] 1. USB adapter board; 2. Timing protection board; 3. Timing protection circuit assembly; 4. Cable; 20. Circuit board; 21. DC socket; 22. Switch; 23. Test interface; 31. Overvoltage protection chip; 32. Circuit support assembly; 33. First ground terminal; 34. Second ground terminal; 35. First output terminal; 36. First input terminal; 37. Second input terminal; 38. Second output terminal. DETAILED DESCRIPTION
[0023] Exemplary embodiments of the present disclosure will be described below in more detail with reference to the accompanying drawings.
[0024] In order to enable those skilled in the art to better understand the present invention, the following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. The accompanying drawings show preferred embodiments of the present invention. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0025] Unless otherwise specified, various raw materials, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.
[0026] Figure 1 This is a schematic diagram of the principle structure of the micro power supply timing protection board structure of the utility model, see Figure 1 As shown, the micro power timing protection board structure includes a USB adapter board 1, four groups of timing protection boards 2 and a timing protection circuit component 3. The four groups of timing protection boards 2 are all welded on the USB adapter board 1. The structures of the four groups of timing protection boards 2 are the same. For example, they are respectively defined as the first timing circuit protection board, the second timing circuit protection board, the third timing circuit protection board and the fourth timing circuit protection board. The four groups of timing protection boards 2 respectively provide four groups of test interfaces 23 for switching the solid-state hard disk card opening test; wherein, the first timing circuit protection board, the second timing circuit protection board, the third timing circuit protection board and the fourth timing circuit protection board are connected in series in sequence through the cable 4 to form a multi-stage drive control circuit, the second timing circuit protection board, the third timing circuit protection board and the fourth timing circuit protection board are respectively provided with the timing protection circuit component 3, and the input end of the first timing circuit protection board is connected to the power input port D C5V, the output end of the first timing circuit protection board is connected to the input end of the timing protection circuit component 3 on the second timing circuit protection board of the next level. Except for the first timing circuit protection board, the output end of the timing protection circuit component 3 on the timing protection board 2 of the previous level is connected to the input end of the timing protection circuit component 3 of the next level; specifically, after the power input DC5V is powered on, the test interface 23 corresponding to the first timing circuit protection board is powered, and the timing protection board 2 and the timing protection circuit component 3 of the next group are powered at the same time. The timing protection circuit component 3 can be set to delay start, and then the test interface 23 corresponding to the second timing circuit protection board is powered after the predetermined time is reached. Similarly, the four groups of test interfaces 23 are started and powered at intervals in sequence to realize the timing protection function, so as to avoid the switch 22 being triggered to ignite when the switch 22 is instantly powered on, and the instantaneous overload causes the switch 22 and the circuit to heat up and short-circuit.
[0027] In an embodiment of the present utility model, the timing protection board 2 includes a circuit board 20, a DC socket 21 and a switch 22. The circuit board 20 serves as a structural body to provide physical support and functional support. The DC socket 21 and the switch 22 are respectively welded on the circuit board 20, and the circuit board 20 is connected to the test interface 23; wherein, the switch 22 on the first timing circuit protection board is respectively connected to the test interface 23 and the input end of the timing protection circuit component 3 on the second timing circuit protection board; the output end of the timing protection circuit component 3 is connected to the DC socket 21 and the switch 22 on the same group of the timing protection board 2, and is connected to the input end of the timing protection circuit component 3 on the next group of the timing protection board 2.
[0028] See Figure 2-4 As shown, Figure 2 It is a structural diagram of the timing protection board 2. Figure 3 Schematic diagram of the structure of the timing protection circuit component 3, the timing protection circuit component 3 is arranged on the circuit board 20, the timing protection circuit component 3 includes an overvoltage protection chip 31, a circuit support component 32, a first ground terminal (GND) 33, a second ground terminal (GND) 34, a first input terminal (EN) 36, a first output terminal (VCC_OUT) 35, a second input terminal (H5V_IN) 37 and a second output terminal (VCC_OUT) 38, the circuit support component 32, the first ground terminal 33, the second ground terminal 34, the first input terminal 36, the first output terminal 35, the second input terminal 37 and the second output terminal 38 are electrically connected to the overvoltage protection chip 31 respectively; the product model of the overvoltage protection chip 31 is SY6875, which provides overvoltage protection. and overcurrent protection function; the circuit support component 32 is used to provide functional support for the overvoltage protection chip 31, and the circuit support component 32 includes multiple capacitors and resistors; the first ground terminal 33, the second ground terminal 34 and the first output terminal 35 are all inner hollow slot pads, which are directly welded to the bottom of the DC socket 21; the first ground terminal 33 and the second ground terminal 34 connect the GND of each timing protection circuit component 3 through the cable 4; the first output terminal 35 and the second output terminal 38 are connected, respectively, to provide output terminal ports; the first input terminal 36 and the second input terminal 37 are both used as input terminal ports, for connecting to inputs through the cable 4, such as the power input DC5V or the H5V_IN powered by the switch 22 of the previous stage and the enable terminal EN.
[0029] Figure 4 This is a circuit reference diagram of the timing protection circuit component 3, see Figure 4As shown, the overvoltage protection chip (U1) 31 includes 11 pins, and the circuit support component 32 includes a first resistor RE1, a second resistor RE2, a third resistor Rv1, a fourth resistor Rm1, a first capacitor CX1, a second capacitor CE1, a third capacitor Ct1 and a fourth capacitor CX2; one end of pins 1-3 of the overvoltage protection chip 31 and the first capacitor CX1 are connected to the second input terminal (H5V_IN) 37, and the other end of the first capacitor CX1 is grounded (GND); one end of the first resistor RE1 is connected to pin 7 of the overvoltage protection chip 31, and the other end of the first resistor RE1 is connected to the first input terminal (EN) 36; one end of the second resistor RE2 is connected to pin 7 of the overvoltage protection chip 31, and the other end of the second resistor RE2 is grounded (GND); one end of the second capacitor CE1 is connected to pin 7 of the overvoltage protection chip 31, and the second end of the second resistor RE2 is grounded (GND); The other end of the second capacitor CE1 is grounded (GND); one end of the first capacitor CX1 is connected to the second input terminal (H5V_IN) 37, and the other end of the first capacitor CX1 is grounded (GND); one end of the third resistor Rv1 is connected to pin 4 of the overvoltage protection chip 31, and the other end of the third resistor Rv1 is grounded (GND); one end of the third capacitor Ct1 is connected to pin 6 of the overvoltage protection chip 31, and the other end of the third capacitor Ct1 is grounded (GND); one end of the fourth resistor Rm1 is connected to pin 5 of the overvoltage protection chip 31, and the other end of the fourth resistor Rm1 is grounded (GND); pins 8-10 of the overvoltage protection chip 31 and one end connected in common with the fourth capacitor CX2 are connected to the output terminal (VCC_OUT), and the other end of the fourth capacitor CX2 is grounded (GND); pin 11 of the overvoltage protection chip 31 is grounded (GND).
[0030] The working principle of the timing protection circuit component 3 is specifically as follows:
[0031] Pin 4 (VCP) of the overvoltage protection chip 31 is pulled down (Rv1), limiting the voltage to 6V. When the voltage exceeds 6V, it will automatically disconnect and stop working. Pin 5 (ILIM) of the overvoltage protection chip 31 is connected in series with a 2.8K fourth resistor (Rm1) to ground, limiting the current to 4A. When the current exceeds 4A, it will automatically disconnect and stop working. The resistance values of the third resistor Rv1 and the fourth resistor Rm1 can be adjusted according to the actual current and voltage.
[0032] The third capacitor Ct1 connected to pin 6 (SST) of the overvoltage protection chip 31 can set the delay time. Secondly, pin 7 (EN) of the overvoltage protection chip 31 is the enable pin. When the voltage is ≥2V (high level), the overvoltage protection chip 31 works. Connect EN to the VCC_OUT of the previous test interface 23. When the VCC_OUT of the current test interface 23 is normally powered (5V), a pull-up is provided for EN. The EN of the overvoltage protection chip 31 is high level and starts working. By detecting the status of the previous test interface 23, the overvoltage protection chip 31 is driven to form a power-on time difference, that is, a power-on sequence. In addition, the third capacitor Ct1 connected to the SST pin also provides a delay setting function, which together form a power-on sequence circuit. The four test interfaces 23 (for example, the first test interface, the second test interface, the third test interface and the fourth test interface) are not powered on at the same time. The switch 22 (for example, the first switch) of the first timing circuit protection board is closed, and the transient current is only in the first test interface. When the first test interface is powered normally, the timing protection circuit component 3 of the second test interface starts to work, and is powered on later than the first test interface, staggering the superimposed peak value. After the second test interface is powered normally, the third test interface is powered on again, and so on. After the third test interface is powered normally, the fourth test interface is powered on again. After all are powered on, the second switch (that is, the switch of the first timing circuit protection board, and the same applies to the others), the third switch, and the fourth switch can individually switch and control the second test interface, the third test interface, and the fourth test interface. The three switches 22 are always closed, and the first switch can control the four test interfaces 23.
[0033] The micro power supply timing protection board structure described in the embodiment of the present invention is configured such that a timing protection circuit assembly 3 is provided on three groups of timing protection boards 2 at the subsequent stage, and the output of the previous timing protection board 2 is used as the input of the subsequent timing protection board 2. Based on the delay function of the timing protection circuit assembly 3, the timing control and overvoltage and overcurrent protection effects are achieved, thereby effectively avoiding the overload problem caused by simultaneous power-on, improving the defects of transient surge current and abnormal power-on timing, and improving safety.
[0034] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.
[0035] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various invention aspects, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed approach should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the claims, the invention aspects lie in less than all of the features of the individual embodiments previously disclosed. Accordingly, the claims that follow the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the invention.
[0036] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.
Claims
1. A micro power supply timing protection board structure, characterized in that: The micro power supply timing protection board structure includes: a USB adapter board, four groups of timing protection boards and a timing protection circuit assembly. The four groups of timing protection boards are all welded on the USB adapter board. The four groups of timing protection boards have the same structure, namely the first timing circuit protection board, the second timing circuit protection board, the third timing circuit protection board and the fourth timing circuit protection board. The four groups of timing protection boards respectively provide four groups of test interfaces; wherein, the first timing circuit protection board, the second timing circuit protection board, the third timing circuit protection board and the fourth timing circuit protection board are connected in series in sequence through cables to form a multi-stage drive control circuit. The second timing circuit protection board, the third timing circuit protection board and the fourth timing circuit protection board are respectively provided with the timing protection circuit assembly. The input end of the first timing circuit protection board is connected to the power input port, and the output end of the first timing circuit protection board is connected to the input end of the timing protection circuit assembly on the second timing circuit protection board of the next level. Except for the first timing circuit protection board, the output end of the timing protection circuit assembly on the timing protection board of the previous level is all connected to the input end of the timing protection circuit assembly of the next level.
2. The micro power supply timing protection board structure according to claim 1, characterized in that: The timing protection board includes a circuit board, a DC socket and a switch. The DC socket and the switch are respectively welded on the circuit board, and the circuit board is connected to the test interface.
3. The micro power supply timing protection board structure according to claim 2, characterized in that: The switches on the first sequential circuit protection board are connected to the test interface and the input end of the sequential circuit protection component on the second sequential circuit protection board respectively.
4. The micro power supply timing protection board structure according to claim 2, characterized in that: The output end of the timing protection circuit component is connected to the DC socket and the switch on the same group of timing protection boards, and is connected to the input end of the timing protection circuit component on the next group of timing protection boards.
5. The micro power supply timing protection board structure according to claim 2, characterized in that: The timing protection circuit component is arranged on the circuit board, and the timing protection circuit component includes an overvoltage protection chip, a circuit support component, a first ground terminal, a second ground terminal, a first input terminal, a first output terminal, a second input terminal and a second output terminal. The circuit support component, the first ground terminal, the second ground terminal, the first input terminal, the first output terminal, the second input terminal and the second output terminal are electrically connected to the overvoltage protection chip respectively.
6. The micro power supply timing protection board structure according to claim 5, characterized in that: The product model of the overvoltage protection chip is SY6875.
7. The micro power supply timing protection board structure according to claim 6, characterized in that: The overvoltage protection chip includes 11 pins, and the circuit support components include a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor; pins 1-3 of the overvoltage protection chip and one end of the first capacitor in common connection are connected to the second input terminal, and the other end of the first capacitor is grounded; one end of the first resistor is connected to pin 7 of the overvoltage protection chip, and the other end of the first resistor is connected to the first input terminal; one end of the second resistor is connected to a pin of the overvoltage protection chip, and the other end of the second resistor is grounded; one end of the second capacitor is connected to pin 7 of the overvoltage protection chip, The other end of the second capacitor is grounded; one end of the first capacitor is connected to the second input end, and the other end of the first capacitor is grounded; one end of the third resistor is connected to pin 4 of the overvoltage protection chip, and the other end of the third resistor is grounded; one end of the third capacitor is connected to pin 6 of the overvoltage protection chip, and the other end of the third capacitor is grounded; one end of the fourth resistor is connected to pin 5 of the overvoltage protection chip, and the other end of the fourth resistor is grounded; pins 8-10 of the overvoltage protection chip and one end connected in common with the fourth capacitor are connected to the output end, and the other end of the fourth capacitor is grounded; pin 11 of the overvoltage protection chip is grounded.