CN220220420U - Automatic control energy-saving circuit of battery management electricity meter - Google Patents
Automatic control energy-saving circuit of battery management electricity meter Download PDFInfo
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- CN220220420U CN220220420U CN202321605498.5U CN202321605498U CN220220420U CN 220220420 U CN220220420 U CN 220220420U CN 202321605498 U CN202321605498 U CN 202321605498U CN 220220420 U CN220220420 U CN 220220420U
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- 230000005611 electricity Effects 0.000 title claims abstract description 25
- 230000004913 activation Effects 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 13
- 230000003213 activating effect Effects 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a battery management electricity meter automatic control energy-saving circuit which comprises a battery, an activation circuit, a self-locking circuit, a voltage-reducing and voltage-stabilizing circuit and a singlechip U2, wherein the positive electrode of the battery is electrically connected with the input end of the voltage-reducing and voltage-stabilizing circuit through the activation circuit, the negative electrode of the battery is grounded, the output end of the voltage-reducing and voltage-stabilizing circuit supplies power to the singlechip U2, the signal sampling end of the singlechip U2 is electrically connected with the end to be sampled of the activation circuit, the signal output end of the singlechip U2 is electrically connected with the signal input end of the self-locking circuit, the high-low level state of the drain electrode of a MOS tube M3 is acquired through the singlechip U2, so that the on-off of the MOS tube M1 is controlled, and when the singlechip U2 detects that the battery has long low-load output time, the disconnection of the MOS tube is controlled, so that the energy-saving effect is achieved. The battery management electricity meter automatic control energy-saving circuit provided by the utility model has the effect of reducing the power consumption of the electricity meter in a standby state.
Description
Technical Field
The utility model relates to the technical field of electric control management, in particular to an automatic control energy-saving circuit of a battery management fuel gauge.
Background
In order to reduce the power consumption of the electric vehicle in the electric control management of the electric vehicle, the running power consumption of the electric vehicle is generally optimized through hardware or an algorithm, but when the electric vehicle is in a standby state, the display device and the fuel gauge of the electric vehicle consume power continuously, so that the battery is continuously output.
In the prior art, a technical scheme for optimizing the standby state of the battery of the electric vehicle is also available, but a circuit provided by the existing technical scheme is very complex, the realization cost is too high, improvement is needed, and the cost is reduced by an optimized circuit.
Disclosure of Invention
In order to solve the problems, the utility model provides a battery management electricity meter automatic control energy-saving circuit to solve the defects in the prior art.
The specific technical scheme is as follows:
the utility model provides a battery management electricity meter automatic control economizer circuit, includes battery, activation circuit, auto-lock circuit, step-down voltage stabilizing circuit and singlechip U2, the positive pole of battery passes through activation circuit with step-down voltage stabilizing circuit's input electricity is connected, the negative pole ground connection of battery, step-down voltage stabilizing circuit's output is right singlechip U2 supplies power, singlechip U2's signal sampling end with activation circuit wait to sample the end electricity and be connected, singlechip U2's signal output part with auto-lock circuit's signal input part electricity is connected, auto-lock circuit's signal output part with activation circuit's control end electricity is connected.
The battery management electricity meter automatic control energy-saving circuit is characterized in that the activation circuit comprises a resistor R1, a MOS tube M1, a switch K1, a resistor R5, a MOS tube M3 and a resistor R4, wherein the positive electrode of the battery is electrically connected with the drain electrode of the MOS tube M1, the negative electrode of the battery is grounded, the drain electrode of the MOS tube M1 is electrically connected with the grid electrode of the MOS tube M1 through the resistor R1, the source electrode of the MOS tube M1 is electrically connected with the input end of the voltage-reducing voltage stabilizing circuit, the grid electrode of the MOS tube M1 is electrically connected with the grid electrode of the MOS tube M3 through the switch K1, the grid electrode of the MOS tube M3 is electrically connected with the source electrode of the MOS tube M3 through the resistor R4, the drain electrode of the MOS tube M3 is electrically connected with the output end of the voltage-reducing circuit, the common end of the MOS tube M3 and the resistor R4 serve as the end to be sampled and are electrically connected with the end of the single chip microcomputer U2, and the grid electrode of the MOS tube M3 is electrically connected with the output end of the voltage-stabilizing circuit.
The self-locking circuit comprises a resistor R2, a resistor R3 and a MOS tube M2, wherein the grid electrode of the MOS tube M1 is electrically connected with the drain electrode of the MOS tube M2 through the resistor R2, the source electrode of the MOS tube M2 is electrically connected with the negative electrode of the battery, the source electrode of the MOS tube M2 is grounded, and the grid electrode of the MOS tube M2 is electrically connected with the signal output end of the singlechip U2 through the resistor R3.
The battery management electricity meter automatic control energy-saving circuit is characterized by further comprising a load circuit, wherein the output end of the voltage reduction and stabilizing circuit is further electrically connected with the power input end of the load circuit, and the control signal output end of the singlechip U2 is electrically connected with the control signal input end of the load circuit.
The self-control energy-saving circuit of the battery management electricity meter also has the characteristic that the voltage-reducing and stabilizing circuit is a low-dropout linear voltage stabilizer.
In summary, the beneficial effects of this scheme are:
in the self-control energy-saving circuit of the battery management electricity meter, the singlechip U2 is used for collecting the high-low level state of the drain electrode of the MOS tube M3 to control the on-off of the MOS tube M1, and when the singlechip U2 detects that the output time of the battery with low load is longer, the singlechip U2 is used for controlling the disconnection of the MOS tube, so that the energy-saving effect is achieved. The battery management electricity meter automatic control energy-saving circuit provided by the utility model has the effect of reducing the power consumption of the electricity meter in a standby state.
Drawings
Fig. 1 is a block diagram of a battery management electricity meter automatic control energy saving circuit of the present utility model.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be further illustrated, but is not limited, by the following examples.
Fig. 1 is a block diagram of a battery management electricity meter automatic control energy saving circuit according to the present utility model, and as shown in fig. 1, the battery management electricity meter automatic control energy saving circuit according to the present embodiment is provided: the battery comprises a battery, an activating circuit, a self-locking circuit, a voltage-reducing and voltage-stabilizing circuit and a singlechip U2, wherein the positive electrode of the battery is electrically connected with the input end of the voltage-reducing and voltage-stabilizing circuit through the activating circuit, the negative electrode of the battery is grounded, the output end of the voltage-reducing and voltage-stabilizing circuit supplies power to the singlechip U2, the signal sampling end of the singlechip U2 is electrically connected with the to-be-sampled end of the activating circuit, the signal output end of the singlechip U2 is electrically connected with the signal input end of the self-locking circuit, and the signal output end of the self-locking circuit is electrically connected with the control end of the activating circuit.
In the above embodiment, the activation circuit includes a resistor R1, a MOS tube M1, a switch K1, a resistor R5, a MOS tube M3, and a resistor R4, where the positive electrode of the battery is electrically connected to the drain electrode of the MOS tube M1, the negative electrode of the battery is grounded, the drain electrode of the MOS tube M1 is also electrically connected to the gate electrode thereof through the resistor R1, the source electrode of the MOS tube M1 is electrically connected to the input end of the buck voltage regulator circuit, the gate electrode of the MOS tube M1 is electrically connected to the gate electrode of the MOS tube M3 through the switch K1, the gate electrode of the MOS tube M3 is electrically connected to the source electrode thereof through the resistor R5, the drain electrode of the MOS tube M3 is electrically connected to the output end of the buck voltage regulator circuit through the resistor R4, the common end of the MOS tube M3 and the resistor R4 is electrically connected to the sampling end of the singlechip U2 as the sampling end to be sampled, and the gate electrode of the MOS tube M1 is also electrically connected to the output end of the self-locking circuit.
In the above embodiment, the self-locking circuit includes a resistor R2, a resistor R3 and a MOS transistor M2, the gate of the MOS transistor M1 is electrically connected to the drain of the MOS transistor M2 through the resistor R2, the source of the MOS transistor M2 is electrically connected to the negative electrode of the battery, and the source of the MOS transistor M2 is grounded, and the gate of the MOS transistor M2 is electrically connected to the signal output end of the single chip microcomputer U2 through the resistor R3.
In the above embodiment, the power supply circuit further comprises a load circuit, the output end of the step-down voltage stabilizing circuit is electrically connected with the power supply input end of the load circuit, and the control signal output end of the singlechip U2 is electrically connected with the control signal input end of the load circuit.
In the above embodiment, the step-down voltage stabilizing circuit is a low dropout linear voltage regulator.
The MOS tube M1 is disconnected in the initial state, the voltage-reducing and stabilizing circuit and the single-chip microcomputer U2 are powered off, after the switch K1 is pressed down, the grid electrode of the MOS tube M1 is pulled down to be conducted, the voltage-reducing and stabilizing circuit is powered on and outputs VCC voltage, the single-chip microcomputer U2 starts to operate, the battery voltage reaches the MOS tube M3 through the resistor R1, the switch K1 and the resistor R5, the grid electrode of the MOS tube M3 is in a high-level state, the MOS tube M3 is conducted, therefore the PA1 end of the single-chip microcomputer U2 is pulled down, the single-chip microcomputer U2 detects that the PA1 end is in a low potential state and can output signals to the resistor R3 from the PA2 end, the MOS tube M2 is controlled to be conducted, even if the switch K1 is disconnected after the MOS tube M1 is conducted, the MOS tube M1 is kept to be conducted, system self-locking is completed, the voltage-reducing and stabilizing circuit and the single-chip microcomputer U2 can all keep operating, when the battery voltage is in a low-load state for a long time, the PA2 of the single-chip microcomputer U2 outputs a low level to the resistor R3, the MOS tube M2 is controlled to be disconnected, the MOS tube M1 is disconnected, the voltage-reducing circuit and the single-chip microcomputer U2 is powered off to be powered down to have a standby effect.
The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the teachings of the present utility model, which are intended to be included within the scope of the present utility model.
Claims (5)
1. A battery management electricity meter automatic control energy-saving circuit is characterized in that: the automatic voltage-reducing and voltage-stabilizing circuit comprises a battery, an activating circuit, a self-locking circuit, a voltage-reducing and voltage-stabilizing circuit and a singlechip U2, wherein the positive electrode of the battery is electrically connected with the input end of the voltage-reducing and voltage-stabilizing circuit through the activating circuit, the negative electrode of the battery is grounded, the output end of the voltage-reducing and voltage-stabilizing circuit supplies power to the singlechip U2, the signal sampling end of the singlechip U2 is electrically connected with the to-be-sampled end of the activating circuit, the signal output end of the singlechip U2 is electrically connected with the signal input end of the self-locking circuit, and the signal output end of the self-locking circuit is electrically connected with the control end of the activating circuit.
2. The battery management electricity meter self-control power saving circuit according to claim 1, wherein: the activation circuit comprises a resistor R1, a MOS tube M1, a switch K1, a resistor R5, a MOS tube M3 and a resistor R4, wherein the positive electrode of the battery is electrically connected with the drain electrode of the MOS tube M1, the negative electrode of the battery is grounded, the drain electrode of the MOS tube M1 is electrically connected with the grid electrode of the MOS tube M1 through the resistor R1, the source electrode of the MOS tube M1 is electrically connected with the input end of the voltage-reducing and voltage-stabilizing circuit, the grid electrode of the MOS tube M1 is electrically connected with the grid electrode of the MOS tube M3 through the switch K1, the grid electrode of the MOS tube M3 is electrically connected with the source electrode of the MOS tube M3 through the resistor R5, the drain electrode of the MOS tube M3 is electrically connected with the output end of the voltage-reducing and voltage-stabilizing circuit through the resistor R4, the public end of the MOS tube M3 is electrically connected with the sampling end of the single chip microcomputer U2 as a to-be-sampled end, and the grid electrode of the MOS tube M1 is electrically connected with the output end of the self-locking circuit.
3. The battery management electricity meter self-control power saving circuit according to claim 2, wherein: the self-locking circuit comprises a resistor R2, a resistor R3 and a MOS tube M2, wherein the grid electrode of the MOS tube M1 is electrically connected with the drain electrode of the MOS tube M2 through the resistor R2, the source electrode of the MOS tube M2 is electrically connected with the cathode of the battery, the source electrode of the MOS tube M2 is grounded, and the grid electrode of the MOS tube M2 is electrically connected with the signal output end of the singlechip U2 through the resistor R3.
4. A battery management electricity meter self-controlling power saving circuit according to claim 3, wherein: the single-chip microcomputer U2 is characterized by further comprising a load circuit, wherein the output end of the step-down voltage stabilizing circuit is electrically connected with the power input end of the load circuit, and the control signal output end of the single-chip microcomputer U2 is electrically connected with the control signal input end of the load circuit.
5. A battery management electricity meter self-controlling power saving circuit according to any one of claims 1-4, wherein: the step-down voltage stabilizing circuit is a low dropout linear voltage stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321605498.5U CN220220420U (en) | 2023-06-25 | 2023-06-25 | Automatic control energy-saving circuit of battery management electricity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321605498.5U CN220220420U (en) | 2023-06-25 | 2023-06-25 | Automatic control energy-saving circuit of battery management electricity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220220420U true CN220220420U (en) | 2023-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321605498.5U Active CN220220420U (en) | 2023-06-25 | 2023-06-25 | Automatic control energy-saving circuit of battery management electricity meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220220420U (en) |
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2023
- 2023-06-25 CN CN202321605498.5U patent/CN220220420U/en active Active
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