CN220022378U - Control circuit with low-power consumption awakening function - Google Patents
Control circuit with low-power consumption awakening function Download PDFInfo
- Publication number
- CN220022378U CN220022378U CN202321386253.8U CN202321386253U CN220022378U CN 220022378 U CN220022378 U CN 220022378U CN 202321386253 U CN202321386253 U CN 202321386253U CN 220022378 U CN220022378 U CN 220022378U
- Authority
- CN
- China
- Prior art keywords
- circuit
- control circuit
- wake
- main control
- power consumption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 31
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 25
- 239000003990 capacitor Substances 0.000 claims description 7
- 101100100146 Candida albicans NTC1 gene Proteins 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 20
- 238000007599 discharging Methods 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a control circuit with a low-power consumption wake-up function, which comprises a main control circuit; the voltage stabilizing circuit and the wake-up circuit are respectively and electrically connected with the main control circuit; the lithium battery pack comprises a voltage acquisition circuit, a battery equalization circuit, a discharge driving circuit, a discharge circuit and a charging circuit which are respectively and electrically connected with the main control circuit, wherein the discharge driving circuit drives the discharge circuit to supply power to the motor, and the charger charges the lithium battery pack through the charging circuit. The utility model provides a low-to-high level change for the main control circuit through the wake-up circuit, so that the main control circuit in the sleep state is waken, and the problems of complex circuit, high cost and high power consumption of the wake-up circuit of the lithium battery electric tool in the prior art are effectively solved through a simple circuit design.
Description
Technical Field
The utility model relates to the technical field of control circuits, in particular to a control circuit with a low-power consumption wake-up function.
Background
In recent years, the market share of rechargeable portable lithium battery electric tool products such as floor sweepers, dust collectors, hand washes, electric drills, electric grinders, air pumps, and the like has been increasing. The portable lithium battery electric tool has the characteristics of portability and smaller product volume, and the battery capacity is generally lower, so that the requirements on low-power consumption management and cost are higher, the low-power consumption management is required when the product is not used, and a wake-up circuit which is changed from a low-power consumption mode to a normal working mode is extremely important; however, the product wake-up circuit in the market has the problems of complex circuit, high cost and high power consumption; therefore, the control circuit with the low-power consumption wake-up function is provided, and is used for solving the problems of complex circuit, high cost and high power consumption of the wake-up circuit of the lithium battery electric tool in the prior art.
Disclosure of Invention
The utility model aims to provide a control circuit with a low-power consumption wake-up function so as to solve the problems of complex circuit, high cost and high power consumption of a wake-up circuit of a lithium battery electric tool in the prior art.
The control circuit with the low-power consumption wake-up function can be realized by the following technical scheme:
the utility model relates to a control circuit with a low-power consumption wake-up function, which is applied to an electric tool and comprises a main control circuit; the wake-up circuit wakes up the main control circuit in a sleep state by providing the main control circuit with a level change from low to high; the lithium battery pack comprises a voltage acquisition circuit, a battery equalization circuit, a discharge driving circuit, a discharge circuit and a charging circuit which are respectively and electrically connected with the main control circuit, wherein the discharge driving circuit drives the discharge circuit to supply power to the motor, and the charger charges the lithium battery pack through the charging circuit.
In one embodiment, the wake-up circuit includes a resistor R18, a resistor R19, a resistor R20, a resistor R22, a diode D1, a transistor Q1, and a capacitor C1; when the motor starts to work, a large current is instantaneously generated, so that the voltage of the lithium battery pack is instantaneously pulled down, and the electric quantity stored by the capacitor C1 is discharged at the moment, so that the triode Q1 is conducted, and a level change from low to high is provided for the main control circuit.
In one embodiment, the MCU used by the master circuit is of the type CMS8S5898, which is a 24 pin chip.
In one embodiment, the voltage stabilizing chip in the voltage stabilizing circuit is of the model HT7550-2.
In one embodiment, the control circuit with the low-power consumption wake-up function further comprises a temperature acquisition circuit, wherein the temperature acquisition circuit is electrically connected with the main control circuit, and the temperature of the MCU is monitored in real time.
In one embodiment, the temperature acquisition circuit adopts a thermistor NTC1 to acquire the temperature of the MCU in real time.
In one embodiment, the control circuit with the low-power consumption wake-up function further comprises a load detection circuit, wherein the load detection circuit is electrically connected with the main control circuit and the motor respectively.
In one embodiment, the control circuit with the low-power consumption wake-up function further comprises a charger detection circuit, wherein the charger detection circuit is electrically connected with the main control circuit and the charger respectively.
Compared with the prior art, the control circuit with the low-power consumption wake-up function has the beneficial effects that:
the control circuit with the low-power consumption wake-up function provides a low-to-high level change for the main control circuit through the wake-up circuit, so that the main control circuit in a sleep state is waken up, and the problems of complex circuit, high cost and high power consumption of a wake-up circuit of a lithium battery electric tool in the prior art are effectively solved through a simple circuit design; meanwhile, the wake-up circuit has the characteristics of simple periphery, few devices, low cost and very low power consumption, and only needs to have power consumption at the moment of starting and the initial power-up of the motor, and other states have almost zero power consumption.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an electrical connection structure of a control circuit with a low-power consumption wake-up function, which comprises a main control circuit, a voltage stabilizing circuit, a wake-up circuit, a voltage acquisition circuit, a battery equalization circuit, a discharge driving circuit, a discharge circuit, a charging circuit, a temperature acquisition circuit, a load detection circuit and a charger detection circuit;
FIG. 2 is a circuit diagram of a master circuit in the control circuit with low power wake-up function of FIG. 1 according to the present utility model;
FIG. 3 is a circuit diagram of a voltage stabilizing circuit in the control circuit with low power consumption wake-up function of the present utility model shown in FIG. 1;
FIG. 4 is a circuit diagram of a wake-up circuit in the control circuit with a low power wake-up function of the present utility model shown in FIG. 1;
FIG. 5 is a circuit diagram of a voltage acquisition circuit in the control circuit with a low power wake-up function of the present utility model shown in FIG. 1;
FIG. 6 is a circuit diagram of a battery equalization circuit in the control circuit with low power wake-up function of the present utility model shown in FIG. 1;
FIG. 7 is a circuit diagram of a discharge driver circuit in the control circuit with a low power wake-up function of the present utility model shown in FIG. 1;
FIG. 8 is a circuit diagram of a discharge circuit in the control circuit with a low power wake-up function of the present utility model shown in FIG. 1;
FIG. 9 is a circuit diagram of a charging circuit in the control circuit with a low power wake-up function of the present utility model shown in FIG. 1;
FIG. 10 is a circuit diagram of a temperature acquisition circuit in the control circuit with a low power wake-up function of the present utility model shown in FIG. 1;
FIG. 11 is a circuit diagram of a load detection circuit in the control circuit with low power wake-up function of the present utility model shown in FIG. 1;
fig. 12 is a circuit diagram of a charger detection circuit in the control circuit with low power consumption wake-up function of the present utility model shown in fig. 1.
The figures indicate: 11, a main control circuit; 12, a voltage stabilizing circuit; 13, waking up the circuit; 14, a voltage acquisition circuit; 15, a battery equalization circuit; 16, a discharge driving circuit; 17, a discharge circuit; 18, a charging circuit; 19, a temperature acquisition circuit; 20, a load detection circuit; 21, a charger detection circuit; 30, a lithium battery pack; 40, a motor; 50, a charger.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.
Referring to fig. 1, the control circuit with low power consumption wake-up function of the present utility model is mainly applied to an electric tool, and includes a main control circuit 11, a voltage stabilizing circuit 12, a wake-up circuit 13, a voltage acquisition circuit 15, a discharge driving circuit 16, a discharge circuit 17, a charging circuit 18, a temperature acquisition circuit 19, a load detection circuit 20 and a charger detection circuit 21; the main control circuit 11 is electrically connected with the voltage stabilizing circuit 12, the wake-up circuit 13, the voltage acquisition circuit 15, the discharge driving circuit 16, the discharge circuit 17, the charging circuit 18, the temperature acquisition circuit 19, the load detection circuit 20 and the charger detection circuit 21, respectively; the voltage stabilizing circuit 12 and the wake-up circuit 13 are respectively and electrically connected with the lithium battery pack 30, the voltage stabilizing circuit 12 performs voltage stabilizing operation on the lithium battery pack 30 to supply power to the main control circuit 11, and the wake-up circuit 13 wakes up the main control circuit 11 in a dormant state to enter a normal working state; the voltage acquisition circuit 14 and the battery equalization circuit 15 are respectively and electrically connected with the lithium battery pack 30, the voltage acquisition circuit 14 acquires the voltage of the lithium battery pack 13 in real time to process and analyze the voltage of the lithium battery pack 13 for the main control circuit 11, and the battery equalization circuit 15 performs equalization management on the battery use condition in the lithium battery pack 13; the discharge driving circuit 16 is electrically connected with the discharge circuit 17, and drives the discharge circuit 17 to work; the discharging circuit 17 is electrically connected to the lithium battery pack 30 and the motor 40, and supplies electric power of the lithium battery pack 30 to the motor 40; the charging circuit 18 is electrically connected to the lithium battery pack 30 and the charger 50, respectively, and the charger 50 performs a charging operation on the lithium battery pack 30 through the charging circuit 18; the temperature acquisition circuit 19 acquires the temperature of the main control circuit 11 in real time; the load detection circuit 20 is electrically connected with the motor 40, and monitors the connection condition of the motor 40 in real time; the charger detection circuit 21 is electrically connected to the charger 50, and monitors the connection status of the charger 50 in real time.
Referring to fig. 1 and 2, in the present embodiment, the MCU used by the master control circuit 11 is CMS8S5898, which is a 24-pin chip; the pins of the MCU are respectively and electrically connected with the voltage stabilizing circuit 12, the wake-up circuit 13, the voltage acquisition circuit 15, the discharge driving circuit 16, the discharge circuit 17, the charging circuit 18, the temperature acquisition circuit 19, the load detection circuit 20 and the charger detection circuit 21.
Referring to fig. 1 and 3, in the present embodiment, the voltage stabilizing chip of the voltage stabilizing circuit 12 is of the type HT7550-2, which enables the lithium battery pack 30 to stably output a voltage of 5V to the main control circuit 11.
Referring to fig. 1 and 4, in the present embodiment, the wake-up circuit 13 includes a resistor R18, a resistor R19, a resistor R20, a resistor R22, a diode D1, a transistor Q1, and a capacitor C1; when the motor 40 starts to operate, a large current is instantaneously generated, so that the voltage of the lithium battery pack 30 is instantaneously reduced, and the electric quantity stored by the capacitor C1 is discharged at this time, so that the triode Q1 is turned on, and a level change from low to high is provided for the main control circuit 11, so that the main control circuit 11 in the sleep state is awakened to enter a normal operating state.
Referring to fig. 5 and 6, fig. 5 is a circuit diagram of the voltage acquisition circuit 14, and the voltage acquisition circuit 14 acquires the voltage of the lithium battery pack 13 in real time for the main control circuit 11 to perform analysis; fig. 6 is a circuit diagram of the battery equalization circuit 15, and the battery equalization circuit 15 performs equalization management on the battery usage status in the lithium battery pack 13.
Referring to fig. 7 and 8, fig. 7 is a circuit diagram of the discharge driving circuit 16, fig. 8 is a circuit diagram of the discharge driving circuit 17, and the main control circuit 11 controls the discharge driving circuit 16 to operate, and drives the discharge driving circuit 17 to supply power to the motor 14, so that the motor 14 operates.
Referring to fig. 9, fig. 9 is a circuit diagram of the discharging and charging circuit 18, and the charger 50 performs a charging operation on the lithium battery pack 30 through the charging circuit 18.
Referring to fig. 10, fig. 10 is a circuit diagram of the temperature acquisition circuit 19, and the temperature acquisition circuit 19 uses a thermistor NTC1 to perform real-time temperature acquisition on the MCU.
Referring to fig. 11 and 12, fig. 11 is a circuit diagram of the load detection circuit 20, and fig. 12 is a circuit diagram of the charger detection circuit 21; the load detection circuit 20 monitors the connection status of the motor 40 in real time; the charger detection circuit 21 monitors the connection status of the charger 50 in real time.
It should be noted that, in the control circuit with the low power consumption wake-up function of the present utility model, when the motor 40 starts up to work, a large current is instantaneously generated, so that the voltage of the lithium battery pack 30 is instantaneously pulled down, and at this time, the electric quantity stored by the capacitor C1 is discharged, so that the triode Q1 is turned on, and a level change from low to high is provided for the main control circuit 11, so that the main control circuit 11 in the sleep state is woken up to enter a normal working state.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (8)
1. A control circuit with low power consumption wake-up function is applied to an electric tool and is characterized by comprising a main control circuit; the wake-up circuit wakes up the main control circuit in a sleep state by providing the main control circuit with a level change from low to high; the lithium battery pack comprises a voltage acquisition circuit, a battery equalization circuit, a discharge driving circuit, a discharge circuit and a charging circuit which are respectively and electrically connected with the main control circuit, wherein the discharge driving circuit drives the discharge circuit to supply power to the motor, and the charger charges the lithium battery pack through the charging circuit.
2. The control circuit with low power consumption wake-up function according to claim 1, wherein the wake-up circuit comprises a resistor R18, a resistor R19, a resistor R20, a resistor R22, a diode D1, a triode Q1 and a capacitor C1; when the motor starts to work, a large current is instantaneously generated, so that the voltage of the lithium battery pack is instantaneously pulled down, and the electric quantity stored by the capacitor C1 is discharged at the moment, so that the triode Q1 is conducted, and a level change from low to high is provided for the main control circuit.
3. The control circuit with low power consumption wake-up function according to claim 2, wherein the main control circuit adopts a model of a MCU CMS8S5898, which is a 24-pin chip.
4. The control circuit with the low-power consumption wake-up function according to claim 2, wherein a voltage stabilizing chip in the voltage stabilizing circuit is of a model HT7550-2.
5. A control circuit with a low power wake-up function as claimed in claim 3 further comprising a temperature acquisition circuit electrically connected to said master control circuit for real-time monitoring of the temperature of said MCU.
6. The control circuit with the low-power consumption wake-up function according to claim 5, wherein a thermistor NTC1 is adopted in the temperature acquisition circuit to perform real-time temperature acquisition on the MCU.
7. The control circuit with low power consumption wake-up function according to any one of claims 1-6, further comprising a load detection circuit, wherein the load detection circuit is electrically connected to the main control circuit and the motor, respectively.
8. The control circuit with low power wake-up function according to any one of claims 1-6, further comprising a charger detection circuit electrically connected to the main control circuit and the charger, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321386253.8U CN220022378U (en) | 2023-06-02 | 2023-06-02 | Control circuit with low-power consumption awakening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321386253.8U CN220022378U (en) | 2023-06-02 | 2023-06-02 | Control circuit with low-power consumption awakening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220022378U true CN220022378U (en) | 2023-11-14 |
Family
ID=88692019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321386253.8U Active CN220022378U (en) | 2023-06-02 | 2023-06-02 | Control circuit with low-power consumption awakening function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220022378U (en) |
-
2023
- 2023-06-02 CN CN202321386253.8U patent/CN220022378U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101549673B (en) | Method and circuit for waking-up weak hybrid power entire car controller in dormant mode | |
| CN203522260U (en) | Cell power-supplying control circuit and a double-power-supply power supplying device | |
| CN104527445A (en) | Power supply control system of electric automobile | |
| WO2019218882A1 (en) | Super-capacitor application circuit of replaceable battery type smart electric energy meter power supply | |
| CN101188361A (en) | An energy management system for voltage increase under 0.3V low-voltage | |
| CN114072984A (en) | Battery management apparatus | |
| CN110932369A (en) | Novel control chip for lithium battery management system | |
| CN108551205B (en) | Power saving method for ultra-low power consumption industrial Internet of things gateway, gateway and gateway system | |
| CN211653439U (en) | Key awakening circuit and electronic equipment | |
| CN203339787U (en) | Electric energy meter power supply system | |
| CN220022378U (en) | Control circuit with low-power consumption awakening function | |
| CN109327061B (en) | Battery power supply circuit | |
| CN215646234U (en) | Dormancy awakening circuit based on optical coupling switch | |
| CN115498731A (en) | BMS state switching system | |
| CN111262328A (en) | Vehicle-mounted terminal standby battery management system | |
| CN203909494U (en) | Heavy type truck self-charging central clock | |
| CN203747473U (en) | Dedicated chip integrating linear charging and constant-voltage output | |
| CN112491115A (en) | Power supply management circuit for standby rechargeable battery | |
| CN112706653A (en) | AC charging CC signal detection circuit with awakening function | |
| CN216086605U (en) | Simple zero-power-consumption self-locking switch circuit | |
| CN219247509U (en) | Wake-up circuit applied to BMS | |
| CN212992000U (en) | Battery power supply control circuit | |
| CN214822707U (en) | AC charging CC signal detection circuit with awakening function | |
| CN218940696U (en) | Low-power consumption dormancy awakening circuit | |
| CN220962186U (en) | Power management control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |