CN211293186U - On-board battery monitoring device - Google Patents
On-board battery monitoring device Download PDFInfo
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- CN211293186U CN211293186U CN201922178360.1U CN201922178360U CN211293186U CN 211293186 U CN211293186 U CN 211293186U CN 201922178360 U CN201922178360 U CN 201922178360U CN 211293186 U CN211293186 U CN 211293186U
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 14
- 230000005669 field effect Effects 0.000 claims description 33
- 238000012546 transfer Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The utility model provides a board carries battery monitoring devices, include: an on-board battery, a control assembly, a diode D1, a diode D2, and a termination module; the on-board battery is connected with the first end of the control assembly; the second end of the control assembly is connected with the terminal module through a diode D2; the system power supply is connected to the termination module through diode D1. The purposes of discharge management and voltage monitoring indication are achieved by adding a control switch and a light-emitting diode control circuit on the basis of a control assembly. Effectively promote the storage time of on-board button cell, make things convenient for the judgement and the maintenance of battery power simultaneously.
Description
Technical Field
The invention relates to the technical field of onboard batteries, in particular to an onboard battery monitoring device.
Background
Currently, all servers and portable computer products have button cell on-board batteries, which are mainly used to store user data in CMOS and maintain the power supply for normal operation of RTC after the host is powered off.
The CMOS stores basic startup information of the computer, such as date, time, startup setting, etc., as shown in fig. 1, when the register value in the startup setting is abnormal due to abnormal power failure or other faults, a default setting, which is usually called CMOS clearing, needs to be restored to remove error information, and at this time, the CMOS needs to be powered off to restore the default value. Meanwhile, the button battery supplies power to the RTC of the mainboard, and time information is guaranteed to be correct.
The current mainboard adopts the following design, when the system power supply is normal, CMOS and RTC will be supplied power by the P3V3_ AUX of system, when the system cuts off the power supply, will have button cell (Battery) to export and supply power for the system, guarantee clock synchronization. The conventional battery is not managed and monitored, and once the battery is abnormal, the button battery needs to be manually taken down to achieve the purpose of power failure, and meanwhile, whether the voltage of the battery is normal or not can not be intuitively judged.
Disclosure of Invention
In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a board-mounted battery monitoring device, comprising: an on-board battery, a control assembly, a diode D1, a diode D2, and a termination module;
the on-board battery is connected with the first end of the control assembly;
the second end of the control assembly is connected with the terminal module through a diode D2;
the system power supply is connected to the termination module through diode D1.
Preferably, the control assembly comprises: the LED driving circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a switch SW1, a light-emitting diode D3, a field-effect transistor Q1 and a field-effect transistor Q2;
the positive output end of the on-board battery is connected with one pin of a switch SW1 and a system power supply;
switch SW1 tripod ground; two pins of the switch SW1 are respectively connected with the first end of the resistor R1 and the first end of the resistor R3; the second end of the resistor R1 is respectively connected with the first end of the resistor R2 and the G pole of the field effect transistor Q1; the second end of the resistor R2 is grounded; a second end of the resistor R3 is connected with the anode of the diode D2;
the S pole of the field effect transistor Q1 and the S pole of the field effect transistor Q2 are respectively grounded;
the D pole of the field effect transistor Q1 is respectively connected with the first end of a resistor R4 and the G pole of the field effect transistor Q2; the second end of the resistor R4 is connected with a system power supply; the D pole of the field effect transistor Q2 is connected with a system power supply through a light emitting diode D3 and a resistor R5 in sequence.
Preferably, the method further comprises the following steps: a capacitance C1;
the cathode of the diode D1 and the cathode of the diode D2 are grounded through a capacitor C1, respectively.
Preferably, the terminal module is a CMOS module, which is configured with an RTC unit.
Preferably, switch SW1 is a YEY1-Q power transfer switch, or a YEY1-L power transfer switch.
Preferably, the field effect transistor Q1 and the field effect transistor Q2 are N-type field effect transistors, respectively.
According to the technical scheme, the invention has the following advantages:
the utility model relates to an on-board battery, control assembly, diode D1, diode D2 and terminal module; the purposes of discharge management and voltage monitoring indication are achieved by adding a control switch and a light-emitting diode control circuit on the basis of a control assembly. Effectively promote the storage time of on-board button cell, make things convenient for the judgement and the maintenance of battery power simultaneously.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a diagram of a prior art on-board battery power supply circuit;
FIG. 2 is a schematic diagram of an on-board battery monitoring device;
FIG. 3 is a schematic diagram of an embodiment of an on-board battery monitoring device.
Detailed Description
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The utility model provides a board carries battery monitoring devices, as shown in fig. 2 and fig. 3, include: an on-board battery 1, a control assembly 2, a diode D1, a diode D2, and a terminal module 4; the on-board battery 1 is connected with a first end of the control component 2; the second end of the control assembly 2 is connected with the terminal module 4 through a diode D2; the system power supply 3 is connected to the termination module 4 through a diode D1.
Wherein, control assembly 2 includes: the LED driving circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a switch SW1, a light-emitting diode D3, a field-effect transistor Q1 and a field-effect transistor Q2;
the positive electrode output end of the on-board battery 1 is connected with one pin of a switch SW1 and a system power supply 3; switch SW1 tripod ground; two pins of the switch SW1 are respectively connected with the first end of the resistor R1 and the first end of the resistor R3; the second end of the resistor R1 is respectively connected with the first end of the resistor R2 and the G pole of the field effect transistor Q1; the second end of the resistor R2 is grounded; a second end of the resistor R3 is connected with the anode of the diode D2; the S pole of the field effect transistor Q1 and the S pole of the field effect transistor Q2 are respectively grounded; the D pole of the field effect transistor Q1 is respectively connected with the first end of a resistor R4 and the G pole of the field effect transistor Q2; the second end of the resistor R4 is connected with the system power supply 3; the D pole of the field effect transistor Q2 is connected with the system power supply 3 through a light emitting diode D3 and a resistor R5 in sequence.
Here, the terminal module is a CMOS module, which is configured with an RTC unit. CMOS: a complementary metal Oxide Semiconductor (cmos). Real-Time Clock unit is RTC. The switch SW1 is a YEY1-Q power transfer switch, or a YEY1-L power transfer switch. The field effect transistor Q1 and the field effect transistor Q2 are respectively N-type field effect transistors.
Under normal operation, one pin and two pins of the switch SW1 are connected, at this time, the P3V3_ BAT _ SOURCE drives the N-channel fet Q1 to be turned on by dividing voltage through the resistors R1 and R2, the fet Q2 is turned off, and at this time, the led D3 is not lit. The voltage to be alerted may be set by the resistance values of resistor R1 and resistor R2 in combination with the threshold voltage vgs (th) of fet Q1. Preferably, the threshold voltage of the fet Q1BSS138P is 1.2V, and the voltage of P3V3_ BAT _ SOURCE is divided by R1(1k ohm) and R2(1k ohm), i.e. when the voltage of P3V3_ BAT _ SOURCE is greater than 2.4V, Q1 is turned on, and when the voltage of P3V3_ BAT _ SOURCE is less than 2.4V, Q1 is turned off, and the led D3 is turned on.
When the mainboard works abnormally and cannot be started normally, if the CMOS module needs to be cleaned, the power supply of the mainboard is powered off, and meanwhile, the two pins and the three pins of the switch selection switch SW1 are connected, so that the power supply of the onboard battery can be cut off, and meanwhile, the CMOS module discharges.
If the whole machine needs to keep the battery power and avoid the battery discharging in the transportation process or the storage process, the two pins and the three pins of the switch SW1 can be connected. The voltage monitoring and discharging management of the onboard button battery are realized through the circuit design, the cost is low, and the maintainability of the product is effectively improved.
In order to reduce signal interference, the method further comprises the following steps: a capacitance C1; the cathode of the diode D1 and the cathode of the diode D2 are grounded through a capacitor C1, respectively.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A board-mounted battery monitoring device, comprising: an on-board battery, a control assembly, a diode D1, a diode D2, and a termination module;
the on-board battery is connected with the first end of the control assembly;
the second end of the control assembly is connected with the terminal module through a diode D2;
the system power supply is connected to the termination module through diode D1.
2. An on-board battery monitoring device of claim 1,
the control assembly includes: the LED driving circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a switch SW1, a light-emitting diode D3, a field-effect transistor Q1 and a field-effect transistor Q2;
the positive output end of the on-board battery is connected with one pin of a switch SW1 and a system power supply;
switch SW1 tripod ground; two pins of the switch SW1 are respectively connected with the first end of the resistor R1 and the first end of the resistor R3; the second end of the resistor R1 is respectively connected with the first end of the resistor R2 and the G pole of the field effect transistor Q1; the second end of the resistor R2 is grounded; a second end of the resistor R3 is connected with the anode of the diode D2;
the S pole of the field effect transistor Q1 and the S pole of the field effect transistor Q2 are respectively grounded;
the D pole of the field effect transistor Q1 is respectively connected with the first end of a resistor R4 and the G pole of the field effect transistor Q2; the second end of the resistor R4 is connected with a system power supply; the D pole of the field effect transistor Q2 is connected with a system power supply through a light emitting diode D3 and a resistor R5 in sequence.
3. An on-board battery monitoring device of claim 2,
further comprising: a capacitance C1;
the cathode of the diode D1 and the cathode of the diode D2 are grounded through a capacitor C1, respectively.
4. An on-board battery monitoring device of claim 2,
the terminal module is a CMOS module, and the CMOS module is provided with an RTC unit.
5. An on-board battery monitoring device of claim 2,
the switch SW1 is a YEY1-Q power transfer switch, or a YEY1-L power transfer switch.
6. An on-board battery monitoring device of claim 2,
the field effect transistor Q1 and the field effect transistor Q2 are respectively N-type field effect transistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922178360.1U CN211293186U (en) | 2019-12-06 | 2019-12-06 | On-board battery monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922178360.1U CN211293186U (en) | 2019-12-06 | 2019-12-06 | On-board battery monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211293186U true CN211293186U (en) | 2020-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922178360.1U Active CN211293186U (en) | 2019-12-06 | 2019-12-06 | On-board battery monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211293186U (en) |
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2019
- 2019-12-06 CN CN201922178360.1U patent/CN211293186U/en active Active
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