CN215181881U - Recording backflow prevention circuit, circuit board and electronic equipment - Google Patents
Recording backflow prevention circuit, circuit board and electronic equipment Download PDFInfo
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- CN215181881U CN215181881U CN202120358011.2U CN202120358011U CN215181881U CN 215181881 U CN215181881 U CN 215181881U CN 202120358011 U CN202120358011 U CN 202120358011U CN 215181881 U CN215181881 U CN 215181881U
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Abstract
The utility model discloses a burn and record and prevent flowing backward circuit, circuit board and electronic equipment, should burn and record and prevent flowing backward the circuit and include first power, break-make component, memory and control circuit, first power and break-make component series connection, and the break-make component establishes ties with the memory, and control circuit establishes ties with the break-make component, the exportable high level of control circuit or low level to make the break-make component correspond and switch on or break off. The utility model discloses technical scheme passes through control circuit to on-off element output high level or low level with the switching on or off of control on-off element, when on-off element switches on, can normally start the memory, when on-off element breaks off, can avoid when burning record data to the memory, lead to higher voltage to pour into first power from the memory into, cause other components and parts with first power electric connection to burn out.
Description
Technical Field
The utility model relates to an electronic equipment technical field, in particular to burn and record and prevent flowing backward circuit, circuit board and electronic equipment.
Background
The burning is to burn the needed data into the media such as optical disc, burning card, etc. through the burning device, etc., and the burning is a commonly used data writing means in the field of electronic equipment, especially for burning the main board.
On different platforms, the working voltage of the memory on the main board is different, for example, on a soar platform, the default power supply voltage of the BIOS ROM is 1.8V, and the working voltage range is 1.65V-2V, and on an X86 platform (i.e., a hardware system built based on an X86 processor), the default power supply voltage of the BIOS ROM is 3.3V, and the working voltage range is 2.7V-3.6V. Because many components and parts electric connection on memory and the mainboard, when writing data to the memory, the mainboard is in the outage state, consequently can produce the phenomenon that the voltage of writing ware pours into other components and parts on the mainboard into, has the risk of damaging the components and parts on the mainboard, still can lead to the component on the mainboard to divide partial voltage away, leads to the memory to divide the voltage that arrives not enough and the phenomenon of unable normal work.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a burn and record and prevent flowing backward circuit, circuit board and electronic equipment, aim at solving the technical problem that voltage flows backward when recording data to the memory.
In order to achieve the above object, the utility model provides a burn and record and prevent flowing backward circuit includes:
a first power supply;
an on-off element, the first power supply being in series with the on-off element;
a memory, the on-off element in series with the memory;
and the control circuit is connected with the on-off element in series, and can output a high level or a low level so as to enable the on-off element to be correspondingly switched on or switched off.
Optionally, the control circuit comprises:
a second power supply;
the first resistor is connected with the second power supply in series and is connected with the on-off element in parallel, and the second power supply can output high level or low level.
Optionally, the control circuit further comprises:
the second resistor is connected between the second power supply and the first resistor in series, and the second resistor is connected with the on-off element in series.
Optionally, the output terminal of the first resistor is grounded.
Optionally, the burn anti-backflow circuit further includes:
the burning seat is connected between the on-off element and the memory in series and is used for being externally connected with a burning device.
Optionally, the socket includes at least two first pins, the memory includes at least two second pins, the first pins are electrically connected to the second pins correspondingly, and one of the first pins is connected to the on-off element correspondingly in series.
Optionally, a connection position is arranged on the burning seat and used for connecting the burner.
Optionally, the on-off element is a MOS transistor.
The utility model discloses still provide a circuit board, this circuit board includes:
the anti-backflow burning circuit according to any one of the technical schemes;
the on-off element, the memory and the control circuit of the burning backflow prevention circuit are all arranged on the substrate.
The utility model discloses still provide an electronic equipment, this electronic equipment includes the circuit board as set forth above arbitrary technical scheme.
The first power supply is connected in series with the on-off element, and the on-off element is connected in series with the memory, so that the first power supply is communicated with the memory to supply power to the memory through the first power supply, and the memory can be started to work; because the on-off element is connected in series between the first power supply and the memory, if the on-off element is connected, the first power supply is connected with the memory, and if the on-off element is disconnected, the first power supply is disconnected with the memory; the control circuit is connected with the on-off element in series, and can output a high level or a low level, when the control circuit outputs the high level, the output high level can enable the on-off element to be conducted, so that the first power supply supplies power to the memory, and the memory can work normally; when the control circuit outputs a low level, the low level can not enable the on-off element to be conducted, so that the first power supply is disconnected from the memory, and the problem that when data are recorded in the memory, higher voltage is poured into the first power supply from the memory to cause burning of other components electrically connected with the first power supply or the problem that the voltage at two ends of the memory cannot reach the working voltage of the memory to cause normal starting of the memory due to the fact that the other components divide the voltage of the memory is avoided; when the control circuit outputs a high level, the on-off element is in a conducting state, and the conducting on-off element cannot divide the voltage output by the first power supply, so that the voltage output by the first power supply is the voltage at two ends of the memory, and the memory is conveniently and normally started.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a recording anti-backflow circuit according to the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the anti-backflow burning circuit of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | A |
2 | On-off |
| 3 | |
31 | |
| 4 | |
41 | Second power supply |
| 42 | A |
43 | Second resistance |
| 5 | Burning |
51 | First pin |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a burn and prevent flowing backward circuit for the technical problem that voltage flows backward when burning data to the memory.
The embodiment of the utility model provides an in, as shown in fig. 1, this burn record prevents flowing backward circuit includes first power 1, on-off element 2, memory 3 and control circuit 4, and first power 1 establishes ties with on-off element 2, and on-off element 2 establishes ties with memory 3, and control circuit 4 establishes ties with on-off element 2, and control circuit 4 exports high level or low level to make on-off element 2 correspond and switch on or break off.
The utility model discloses technical scheme's first power 1 and on-off element 2 are established ties, and on-off element 2 is established ties with memory 3 for first power 1 communicates with memory 3, and in order to supply power to memory 3 through first power 1, makes memory 3 can start work; since the on-off element 2 is connected in series between the first power supply 1 and the memory 3, if the on-off element 2 is turned on, the first power supply 1 and the memory 3 are turned on, and if the on-off element 2 is turned off, the first power supply 1 and the memory 3 are turned off; the control circuit 4 is connected with the on-off element 2 in series, the control circuit 4 can output a high level or a low level, and when the control circuit 4 outputs the high level, the output high level can enable the on-off element 2 to be conducted, so that the first power supply 1 supplies power to the memory 3, and the memory 3 can work normally; when the control circuit 4 outputs a low level, the on-off element 2 cannot be switched on by the low level, so that the first power supply 1 is disconnected from the memory 3, and the problem that when data is recorded in the memory 3, a higher voltage is poured into the first power supply 1 from the memory to cause burning of other components electrically connected with the first power supply 1 or the problem that the voltage of the memory 3 is divided by other components to cause that the voltage at two ends of the memory 3 cannot reach the working voltage of the memory 3 and the memory 3 cannot be normally started is avoided; when the control circuit 4 outputs a high level, the on-off element 2 is in a conducting state, and the conducting on-off element 2 does not divide the voltage output by the first power supply 1, so that the voltage output by the first power supply 1 is the voltage at two ends of the memory 3, so as to normally start the memory 3.
In one embodiment, the Memory 3 is a BIOS ROM (Basic Input Output System, abbreviated BIOS, i.e. Basic Input Output System; Read-Only Memory, abbreviated ROM, i.e. Read Only Memory), i.e. Basic Input Output Read Only Memory.
It can understand, control circuit 4 and first power 1 all with wait to start main part electric connection, wait to start the main part and can call the program instruction of storage in the memory 3, for example, be the mainboard when waiting to start the main part, will the utility model discloses a burn and record when preventing flowing backward the circuit and using on the mainboard, then control circuit 4 and first power 1 all with the total power electric connection of mainboard, when starting the mainboard promptly, first power 1 all starts with control circuit 4, from this, can make 1 drive storage 3 of first power to call the program instruction in the memory 3.
In one embodiment, as shown in fig. 1 and fig. 2, the control circuit 4 includes a second power source 41 and a first resistor 42, the first resistor 42 is connected in series with the second power source 41, the first resistor 42 is connected in parallel with the on-off element 2, and the second power source 41 can output a high level or a low level. Since the first resistor 42 is connected in parallel to the switching element 2, when the second power source 41 is turned on, a voltage value is generated across the first resistor 42, so that a corresponding high level or low level is generated on the switching element 2 to control the on/off of the switching element 2.
As can be understood, the second power supply 41 is connected to the main power supply of the motherboard (i.e. the main body to be started), when the motherboard is started, the second power supply 41 connected to the main power supply of the motherboard is started, the second power supply 41 will output a voltage, which is a high level, and due to the existence of the first resistor 42, a voltage value is generated at two ends of the first resistor 42, so that a control voltage exists on the on-off element 2 to turn on the on-off element 2, i.e. a high level is output to the on-off element 2 to turn on the on-off element 2; when data is burned into the BIOS ROM, the main board is powered off, and no current flows through the second power supply 41, that is, the second power supply 41 does not output voltage, which is equivalent to the second power supply 41 outputting a low level to the on-off element 2, so that the on-off element 2 is turned off.
In one embodiment, the main board power supply is an ATX power supply, and the first power supply 1 and the second power supply 41 are connected to different voltage terminals of the ATX power supply.
In one embodiment, as shown in fig. 1 and fig. 2, the output terminal of the first resistor 42 is grounded, so that the second power source 41 and the first resistor 42 form a complete loop.
In an embodiment, as shown in fig. 1 and fig. 2, the control circuit 4 further includes a second resistor 43, the second resistor 43 is connected in series between the second power source 41 and the first resistor 42, and the second resistor 43 is connected in series with the on-off element 2, so as to divide a part of the power supply voltage of the second power source 41 through the second resistor 43, and prevent the voltage provided by the second power source 41 to the on-off element 2 from being greater than the on-state voltage of the on-off element 2, so that the on-off element 2 can be normally turned on.
In an embodiment, as shown in fig. 2, the recording anti-backflow circuit further includes a recording seat 5, the recording seat 5 is connected in series between the on-off element 2 and the memory 3, the recording seat 5 is used for externally connecting a recorder, when the recorder is used for recording data to the memory 3, the recorder can be directly connected to the recording seat 5 due to the existence of the recording seat 5, the recorder is used for recording data to the memory 3 through the recording seat 5, and an auxiliary tool is not needed for recording data to the memory 3, so that the recording operation is simplified, and the recording of data to the memory 3 through the recording seat 5 is facilitated; in some embodiments, the memory 3 is fixed, for example, the memory 3 is fixed on a motherboard, at this time, data is burned into the memory 3 through the burning seat 5, the memory 3 does not need to be detached and the data is directly burned into the memory 3, so that damage to the memory 3 and the motherboard due to frequent detachment of the memory 3 is avoided, burning efficiency is improved, and meanwhile, data can be burned into the memory 3 without detaching a tool for detaching the memory 3, so that burning operation is greatly simplified.
In an embodiment, as shown in fig. 2, the recording seat 5 includes at least two first pins 51, the memory 3 includes at least two second pins 31, the first pins 51 are electrically connected with the second pins 31, wherein one of the first pins 51 is connected in series with the on-off element 2, so as to correspondingly connect the recording seat 5 with the memory 3, and thus data can be recorded in the recorder through the recording seat 5.
In an embodiment, as shown in fig. 2, the recording seat 5 has eight first pins 51, the memory 3 has eight pins, the first pins 51 are connected to the second pins 31 in a one-to-one correspondence manner, one of the first pins 51 and one of the second pins 31 are power pins, and the on-off element 2, the power pin of the recording seat 5 and the power pin of the memory 3 are sequentially connected in series to supply power to the memory 3 through the first power supply 1.
In an embodiment, the recording base 5 is provided with a connecting position for connecting the recording device, and the connecting position can be directly connected with the recording device, so that the step of connecting the recording device to the recording base 5 is simplified, and the recording efficiency is improved.
In one embodiment, the connection position is a plug hole corresponding to the plug pin of the recorder, and the plug pin of the recorder can be directly plugged into the plug hole of the recording seat 5, so as to improve the efficiency of connecting the recorder to the recording seat 5.
In an embodiment, the on-off element 2 is a MOS transistor, and a MOS (MOSFET, MOS for short) is a metal-oxide semiconductor field effect transistor, and the first power supply 1 and the memory 3 can be turned on or off through the MOS transistor, so as to prevent the first power supply 1 from being poured into a power supply of a burner for burning data in the memory 3.
Specifically, the control terminal of the MOS transistor is connected in parallel to the first resistor 42, so as to control the control terminal of the MOS transistor to switch on the input terminal and the output terminal of the MOS transistor through the high level output by the second power supply 41, thereby switching on the first power supply 1 and the memory 3.
The embodiment of the utility model provides a still provide a circuit board, this circuit board include the burning record that base plate and any above-mentioned embodiment mentioned prevent flowing backward the circuit, and the break-make component 2, memory 3 and the control circuit 4 of preventing flowing backward the circuit are burnt in the burning record all set up on the base plate.
The embodiment of the utility model provides a circuit board includes the base plate and burns and prevent flowing backward the circuit, should burn and prevent flowing backward the concrete structure of circuit and refer to above-mentioned embodiment, because this circuit board has adopted all technical scheme of above-mentioned all embodiments, therefore have all beneficial effects that the technical scheme of above-mentioned embodiment brought at least; in addition, the on-off element 2, the memory 3 and the control circuit 4 are all arranged on the substrate, so that the on-off element 2, the memory 3 and the control circuit 4 are integrated into a whole by taking the substrate as a carrier.
In one embodiment, the circuit board is a motherboard.
The embodiment of the utility model provides a still provide an electronic equipment, this electronic equipment includes the circuit board that any embodiment of the aforesaid was mentioned.
The embodiment of the utility model provides an electronic equipment includes the circuit board, and the concrete structure of this circuit board refers to above-mentioned embodiment, because this electronic equipment has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least.
In one embodiment, the electronic device is a computer.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a burn and prevent flowing backward circuit which characterized in that, it includes to burn and prevent flowing backward the circuit:
a first power supply;
an on-off element, the first power supply being in series with the on-off element;
a memory, the on-off element in series with the memory;
and the control circuit is connected with the on-off element in series, and can output a high level or a low level so as to enable the on-off element to be correspondingly switched on or switched off.
2. The burn anti-backup circuit of claim 1, wherein the control circuit comprises:
a second power supply;
the first resistor is connected with the second power supply in series and is connected with the on-off element in parallel, and the second power supply can output high level or low level.
3. The burn fall prevention circuit of claim 2, wherein the control circuit further comprises:
the second resistor is connected between the second power supply and the first resistor in series, and the second resistor is connected with the on-off element in series.
4. The burn anti-backflow circuit of claim 2, wherein the output terminal of the first resistor is grounded.
5. The burn fall prevention circuit of claim 1, further comprising:
the burning seat is connected between the on-off element and the memory in series and is used for being externally connected with a burning device.
6. The burn-in anti-backflow circuit as claimed in claim 5, wherein the burn-in socket comprises at least two first pins, the memory comprises at least two second pins, the first pins are electrically connected with the second pins correspondingly, and one of the first pins is connected with the on-off element correspondingly in series.
7. The burn-recording backflow prevention circuit of claim 5, wherein the burn-recording base is provided with a connecting position, and the connecting position is used for connecting the burn-recording device.
8. The burn anti-backflow circuit of claim 1 wherein the on-off element is a MOS transistor.
9. A circuit board, comprising:
the burn anti-backflow circuit of any one of claims 1-8;
the on-off element, the memory and the control circuit of the burning backflow prevention circuit are all arranged on the substrate.
10. An electronic device, characterized in that the electronic device comprises a circuit board according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120358011.2U CN215181881U (en) | 2021-02-08 | 2021-02-08 | Recording backflow prevention circuit, circuit board and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120358011.2U CN215181881U (en) | 2021-02-08 | 2021-02-08 | Recording backflow prevention circuit, circuit board and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215181881U true CN215181881U (en) | 2021-12-14 |
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ID=79411077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120358011.2U Active CN215181881U (en) | 2021-02-08 | 2021-02-08 | Recording backflow prevention circuit, circuit board and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215181881U (en) |
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2021
- 2021-02-08 CN CN202120358011.2U patent/CN215181881U/en active Active
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Effective date of registration: 20231106 Address after: 518000, 4th Floor, No. 31, Xiacun Community, Gongming Street, Guangming District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Baoxinchuang Information Technology Co.,Ltd. Address before: 518000 501-2, building a, wisdom Plaza, 4068 Qiaoxiang Road, Gaofa community, Shahe street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen baoxinchuang Technology Co.,Ltd. |