CN219627383U - Boosting type power supply device - Google Patents
Boosting type power supply device Download PDFInfo
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- CN219627383U CN219627383U CN202223565709.5U CN202223565709U CN219627383U CN 219627383 U CN219627383 U CN 219627383U CN 202223565709 U CN202223565709 U CN 202223565709U CN 219627383 U CN219627383 U CN 219627383U
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Abstract
The utility model discloses a boosting type power supply device, which adopts a low-power consumption boosting module to control the opening and closing states of a battery boosting module, a current detection control unit detects the current of the battery boosting module, when a load (such as a flashlight is closed) is not connected, the current detection control unit detects that the current value of the low-power consumption boosting unit is lower than a preset value, the battery boosting module is closed, at the moment, the battery does not supply power to the outside, the battery boosting module does not consume power, and when the current detection control unit detects that the current value of the low-power consumption boosting unit is higher than the preset value, the battery boosting module is opened to supply power to the load, thereby realizing the power supply to the load after the battery is boosted, and reducing the circuit power consumption.
Description
Technical Field
The present utility model relates to a power supply technology, and more particularly, to a booster power supply device.
Background
At present, products powered by batteries are quite many, however, in the application of battery power supply, boost voltage is often used, for example, the voltage output by the battery is 4.2V, and the load needs 5V, 9V or 12V, etc., so that the boost circuit is required to boost the battery voltage to the corresponding voltage to supply power to each module of the load, the battery itself consumes little power and can be stored for a long time, and the boost circuit generally converts the voltage and the current output by the battery to provide large current or larger current externally, so that the power consumption of the boost circuit can be larger, and the long-term storage and use of the battery products can be affected by the power consumption of the boost circuit.
Disclosure of Invention
In view of the above-described drawbacks of the related art, an object of the present utility model is to provide a boost power supply device that can boost a battery voltage to supply power to a load, and that has low power consumption.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a boost power supply device, comprising: the battery module comprises a battery unit, the battery boost module comprises a battery boost unit and a control input end, the low power boost module comprises a low power boost unit, a current detection control unit and a control output end, the charging module comprises a charging unit, the power interface module comprises a charging input port and a power output port, the power output end is connected with the output end of the battery boost module and the output end of the low power boost module, the charging input port is connected with the input end of the charging module, the control output end is connected with the control input end, the current detection control unit is connected with the control input end of the battery boost module, and the current detection control unit is used for starting the battery boost module when the output current of the low power boost unit exceeds a preset value.
The power supply device comprises a current detection control unit, a power interface module, a low-power consumption boosting unit, a battery module, a power interface module, a battery module and a control output end of the current detection control unit, wherein the input end of the current detection control unit is connected with the battery module, the output end of the current detection control unit is connected with the power interface module through the low-power consumption boosting unit, and the control output end of the current detection control unit is connected with the control input end of the battery boosting module.
The power supply device comprises a current detection control unit, a battery module, a power interface module, a battery module, a low-power consumption boosting unit, a power interface module, a control output end of the current detection control unit and a control input end of the battery boosting module.
The boosting type power supply device further comprises a buffer isolation module, and the low-power boosting module is connected with the battery boosting module and the power interface module through the buffer isolation module.
The boost type power supply device comprises a buffer isolation module and a power interface module, wherein the buffer isolation module comprises a first diode, the positive electrode of the first diode is connected with a low-power consumption boost module, and the negative electrode of the first diode is connected with a battery boost module and the power interface module.
The boost type power supply device comprises a buffer isolation module and a power interface module, wherein the buffer isolation module comprises a first resistor, one end of the first resistor is connected with a low-power-consumption boost module, and the other end of the first resistor is connected with the battery boost module and the power interface module.
The battery boosting module further comprises an isolation unit, one end of the isolation unit is connected with the power interface module and the buffer isolation module, and the other end of the isolation unit is connected with the battery boosting unit.
The boosting type power supply device further comprises a charging module, wherein the input end of the charging module is connected with the power interface module, the buffer isolation module and the isolation unit, and the output end of the charging module is connected with the battery module.
The boosting type power supply device is characterized in that the low-power boosting unit comprises a low-power boosting circuit and a linear voltage reducing circuit, the 1 st end of the low-power boosting circuit is connected with the battery module, the 2 nd end of the low-power boosting circuit is connected with the power interface module through the current detection control unit, and the 3 rd end of the low-power boosting circuit is grounded through the linear voltage reducing circuit.
The linear buck circuit comprises a plurality of buck diode groups connected in series, the positive poles of the buck diode groups are connected with the low-power-consumption boost circuit, and the negative poles of the buck diode groups are grounded.
Compared with the prior art, the boost type power supply device provided by the utility model adopts the low-power boost module to control the opening and closing states of the battery boost module, the current detection control unit detects the current of the battery boost module, when no load is connected (such as a flashlight is closed), the current detection control unit detects that the current value of the low-power boost unit is lower than a preset value, the battery boost module is closed, the battery is not externally powered at the moment, the battery boost module does not consume power, and when the current detection control unit detects that the current value of the low-power boost unit is higher than the preset value, the battery boost module is opened to supply power to the load, so that the power supply of the load is realized after the battery is boosted, and the circuit power consumption is reduced.
Drawings
Fig. 1 is a block diagram of a first preferred embodiment of a boost power supply device according to the present utility model.
Fig. 2 is a block diagram illustrating a low power boost module in a boost power device according to an embodiment of the present utility model.
Fig. 3 is a block diagram of another embodiment of a low power boost module in a boost power device according to the present utility model.
Fig. 4 is a circuit diagram of a current detection control unit of an embodiment of a low-power boost module in a boost power supply device according to the present utility model.
Fig. 5 is a block diagram of a second preferred embodiment of the boost power supply device according to the present utility model.
Fig. 6 is a circuit diagram of a low-power booster circuit in the booster power supply device according to the present utility model.
Fig. 7 is a circuit diagram of a linear voltage reducing circuit in a voltage boosting power supply device according to the present utility model.
Fig. 8 is a block diagram showing a structure of a battery boosting module in the boosting power supply apparatus according to the present utility model.
Fig. 9 is a circuit diagram of a battery boosting module in the boosting power supply apparatus according to the present utility model.
Fig. 10 is a block diagram of a third preferred embodiment of the boost power supply device according to the present utility model.
Fig. 11 is a schematic circuit diagram of an embodiment of a buffer isolation module in a boost power device according to the present utility model.
Fig. 12 is a schematic circuit diagram of another embodiment of a buffer isolation module in a boost power supply device according to the present utility model.
Fig. 13 is a schematic circuit diagram of another embodiment of a buffer isolation module in a boost power supply device according to the present utility model.
Fig. 14 is a schematic circuit diagram of a buffer isolation module in a boost power supply device according to another embodiment of the present utility model.
Fig. 15 is a block diagram of a fourth preferred embodiment of the boost power supply device according to the present utility model.
Fig. 16 is a block diagram showing a configuration of a charging module in the boost power supply device according to the present utility model.
Fig. 17 is a circuit schematic diagram of a power interface module in the boost power supply device provided by the utility model.
The drawings are marked with the following description:
battery module 1, battery cell 11, battery protection unit 12, battery boosting module 2, battery boosting unit 21, isolation unit 22, low power boosting module 3, low power boosting unit 31, low power boosting circuit 311, linear step-down circuit 312, step-down diode group 313, current detection control unit 32, charging module 4, charging unit 41, charging step-down unit 42, power interface module 5, buffer isolation module 6, step-down diode D, battery protection chip U1, filter resistor RC, first capacitor C1, first diode D1, first resistor R1
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It is noted that when an element is referred to as being "mounted," "secured," or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
It should be noted that, in the embodiments of the present utility model, terms such as left, right, up, and down are merely relative concepts or references to normal use states of the product, and should not be construed as limiting.
The boost power supply device provided by the utility model can be arranged on a portable electronic product and used for supplying power to a main board of the electronic product (such as a mobile phone, a notebook computer, a mobile power supply, a Bluetooth sound box and the like), and can also be charged by a battery of a charger electronic product.
Referring to fig. 1, 2 and 3, the boost power supply device includes a battery module 1, a battery boost module 2, a low power boost module 3, a charging module 4 and a power interface module 5, wherein the battery boost module 2 includes a battery boost unit 21 and a control input terminal a, the low power boost module 3 includes a low power boost unit 31, a current detection control unit 32 and a control output terminal B, the charging module 4 includes a charging unit 41 (as shown in fig. 16), and the power interface module 5 includes a charging input port a and a power output port B.
The power output end B is connected with the output ends of the battery boosting module 2 and the low-power boosting module 3 and is used for externally and negatively supplying power when the power interface module 5 is connected with a load, and the charging input port A is connected with the input end C of the charging module 4 and is used for charging the battery when the power interface module 5 is connected with a charger.
The control output end B is connected with the control input end a, the current detection control unit 32 is connected with the control input end a of the battery boosting module 2, the low-power boosting unit 31 is used for detecting the current of the power output end B of the power interface module 5, the current detection control unit 32 controls the on or off state of the low-power boosting module 3 according to the current, specifically, when the current detection control unit 32 detects that the output current of the low-power boosting unit 31 exceeds a preset value, the battery boosting module 2 is started, power supply to a load after the battery is boosted is realized, and the circuit power consumption is reduced.
Specifically, when the current detection control unit 32 detects that the output current of the low-power consumption boosting unit 31 exceeds a preset value, it indicates that the boosting power supply device is connected with a load (such as whether a flashlight is turned on or not), the current detection control unit 32 turns on the battery boosting module 2, and the power consumption of the low-power consumption boosting module 3 can achieve uA level or even nA level, so that the power consumption of the boosting power supply device is extremely low when no power is supplied, and after the connection of the load is detected, the power boosting module is turned on again to supply power to the battery module 1, thereby reducing the circuit power consumption.
In the boost power supply device provided by the utility model, the low-power boost unit 31 and the current detection control unit 32 may also be connected in various manners, referring to fig. 2, an input end of the current detection control unit 32 is connected to the battery module 1, an output end of the current detection control unit 32 is connected to the power interface module 5 through the low-power boost unit 31, a control output end of the current detection control unit 32 is a control output end B of the low-power boost module 3, a control output end of the current detection control unit 32 is connected to a control input end of the battery boost module 2, the low-power boost unit 31 obtains a current of the power output port B of the power interface module 5, and the current detection control unit 32 controls the on and off states of the low-power boost unit 31.
Referring to fig. 3, in another embodiment, an input end of the current detection control unit 32 is connected to the battery module 1 through the low-power boost unit 31, an output end of the current detection control unit 32 is connected to the power interface module 5, a control output end of the current detection control unit 32 is connected to a control input end of the battery boost module 2, a current of a power output port of the power interface module 5 is obtained by the low-power boost unit 31 through the current detection control unit 32, and an on and off state of the low-power boost unit 31 is controlled by the current detection control unit 32.
As shown in fig. 4, the current detection control unit 32 may include a resistor and a transistor, and the resistor detects the current of the low power consumption boosting unit and controls the on and off states of the transistor to control whether the battery boosting module outputs the battery voltage.
Alternatively, referring to fig. 5, the low power boost unit 31 includes a low power boost circuit 311 and a linear buck circuit 312, the 1 st end of the low power boost circuit 311 is connected to the battery module 1, the 2 nd end of the low power boost circuit 311 is connected to the power interface module 5 through the current detection control unit 32, and the 3 rd end of the low power boost circuit 311 is grounded through the linear buck circuit 312.
In a specific embodiment, the low-power boost circuit 311 may be a low-power boost chip of the type LP6261, LP62610 or TL1615, and the voltage output by the voltage module is input from the VIN pin of the boost chip, boosted by the boost chip, and output from the VOUT pin to the current detection control unit.
In other embodiments, the low-power boost circuit 311 may also be a voltage-multiplying rectifying boost circuit, and boost the boosted output voltage by voltage-multiplying rectifying boost voltage, and since the low-power boost unit 31 only provides a function of starting up the power supply in the boost power supply device of the present utility model, when a higher voltage is needed for starting up, a boost circuit with low power consumption is used to obtain a higher boost voltage.
As shown in fig. 7, the linear buck circuit 312 includes a plurality of buck diode groups 313 connected in series, wherein the positive electrode of the buck diode group 313 is connected to the low-power boost circuit 311 (e.g. the ground terminal for boosting voltage), and the negative electrode of the buck diode group 313 is grounded. Specifically, the buck diode group 313 includes more than two buck diodes connected in series, the anode of the first buck diode is connected to the low-power boost circuit 311, the cathode of the last buck diode is grounded, and the function is low by adopting a mode of diode buck.
In some low-power-consumption boost chips (such as TL1615 boost chips), the boost voltage is limited by the chip technology, the input voltage range of the boost chip is low, and by utilizing the characteristic that the ground terminal of the low-power-consumption boost circuit 311 is connected with a series buck circuit to ground to boost the voltage of the output of the low-power-consumption boost circuit 311 to ground, and the voltage of the output of the low-power-consumption boost circuit 311 to ground is the sum of the boosted voltage of the low-power-consumption boost circuit 311 and the series buck circuit.
Referring to fig. 8 and 9 together, in the boost power supply device of the present utility model, the battery module 1 includes a battery unit 11 and a battery protection unit 12, and the battery unit 11 supplies power to the outside via the battery protection unit 12. The battery protection unit 12 is disposed between the negative electrode of the battery module 1 and the battery boosting unit 21, and is used for turning off the battery boosting unit 21 when the battery module 1 is lower than a set value (e.g. 3.7V), so as to prevent the battery module 1 from overdischarging, thereby protecting the battery module 1 from being damaged and prolonging the service life of the battery. Of course, the battery module 1 may be provided without a protection unit, so that the battery module 1 is lower in cost.
In an alternative embodiment, the battery protection unit 12 includes a battery protection chip U1, a filter resistor RC, and a first capacitor C1, the battery module 1 includes a battery BAT, and the battery protection chip U1 may be a chip with a model number XB5332B, and has all protection functions required in battery applications, including overcharge, overdischarge, overcurrent, and load short-circuit protection.
The VDD terminal of the battery protection chip U1 is connected to the positive electrode of the battery BAT and the input terminal of the battery boosting unit 21 through the filter resistor RC, and is also grounded through the first capacitor C1, the VM terminal of the battery protection chip U1 is connected to the ground of the power interface module 5, and the positive electrode of the battery is connected to the positive electrode of the battery module 1. When the battery is powered, after the battery voltage is filtered by a filter circuit formed by a filter resistor RC and a first capacitor C1, the battery voltage enters the battery protection chip U1 through the VDD end of the battery protection chip U1, the battery protection chip U1 judges whether the battery voltage is lower than a set value, and the VM end stops outputting the power supply voltage and the power supply current, so that the battery is not discharged any more, and the battery is prevented from overdischarging. Of course, the battery module 1 may also be provided without a protection unit, resulting in lower battery cost.
Referring to fig. 10, the boost power supply device provided by the present utility model further includes a buffer isolation module 6, the low power consumption boost module 3 is connected with the battery boost module 2 and the power interface module 5 through the buffer isolation module 6, and the buffer isolation module 6 is used for isolating the voltage and the current input from the charger when the power interface module 5 is connected with the charger, so as to prevent the low power consumption boost module 3 from being damaged when the battery charger is connected with the charger.
In particular, the buffer isolation module 6 comprises a resistor and/or a diode, i.e. the buffer isolation module 6 may comprise a resistor, a diode, and a combination of a resistor and a diode.
In an alternative embodiment, as shown in fig. 11, the buffer isolation module 6 includes a first diode D1, where an anode of the first diode D1 is connected to the low-power consumption boost module 3, and a cathode of the first diode D1 is connected to the battery boost module 2 and the power interface module 5, and the first diode D1 mainly plays an isolation role to prevent a large current during charging from damaging the low-power consumption boost module 3.
In an alternative embodiment, as shown in fig. 12, the buffer isolation module 6 includes a first resistor R1, one end of the first resistor R1 is connected to the low-power consumption boost module 3, the other end of the first resistor R1 is connected to the battery boost module 2 and the power interface module 5, and the first resistor R1 mainly plays a role in buffering to prevent the low-power consumption boost module 3 from being damaged by high current during charging.
In an alternative embodiment, as shown in fig. 13, the buffer isolation module 6 includes a first diode D1 and a first resistor R1, where an anode of the first diode D1 is connected to the low-power consumption boost module 3, and a cathode of the first diode D1 is connected to the battery boost module 2 and the power interface module 5 through the first resistor R1, and the buffer and isolation functions are combined through the first diode D1 and the first resistor R1, so as to prevent the high current during charging from damaging the low-power consumption boost module 3.
In an alternative embodiment, as shown in fig. 14, the buffer isolation module 6 includes a first diode D1 and a first resistor R1, where an anode of the first diode D1 is connected to the low-power consumption boost module 3 through the first resistor R1, and a cathode of the first diode D1 is connected to the battery boost module 2 and the power interface module 5, so that the low-power consumption boost module 3 is prevented from being damaged by high current during charging.
Referring to fig. 15, in the boost power supply device of the present utility model, the battery boost module 2 further includes an isolation unit 22, one end of the isolation unit 22 is connected to the power interface module 5, the other end of the isolation unit 22 is connected to the battery boost unit 21, the isolation unit 22 may include an isolation diode, the positive electrode of the isolation diode is connected to the battery boost unit 21, and the negative electrode of the isolation diode is connected to the power interface module 5, so that when there is a voltage and a current output at the power interface module 5, the voltage and the current are prevented from entering the battery boost unit 21 through the power interface module 5 by utilizing the unidirectional conduction characteristic of the diode.
Referring to fig. 14 and 15, the boost power supply device may further include a charging module 4, wherein an input end of the charging module 4 is connected to the power interface module 5, the buffer isolation module 6 and the isolation unit 22, an output end of the charging module 4 is connected to the battery module, and when the battery voltage is lower than a preset value (e.g. 3.7V), the charging module 4 is turned on, and the battery boost module 2 is turned off, so that the voltage and the voltage output by the external charger charge the battery module 1 through the charging module 4.
As shown in fig. 16, alternatively, the charging module 4 includes a charging unit 41 and a charging step-down unit 42, one end of the charging step-down unit 42 is connected to the power interface module 5, and the other end of the charging step-down unit 42 is connected to the battery module through the charging unit 41.
One end of the charging unit 41 is connected with the positive electrode of the battery module 1, and the other end of the charging unit 41 is connected with the isolation unit 22 and the power interface module 5 through the charging voltage reduction unit 42. Since the input end of the charging module 4 is connected to the output end of the battery boosting module 2, although the output voltage of the battery boosting module 2 is lower than the charging input voltage, the charging module 4 still has current, in order to reduce the current, the self-power consumption in the boosting type power supply device is reduced, when the battery is powered, the voltage output by the battery end is boosted by the battery boosting module 2 and is output by the isolation unit 22, and after the output voltage of the battery boosting module 2 is boosted by the charging buck unit 42, the current can be greatly reduced, the self-power consumption of the charging unit 41 is reduced, so that the power consumption in the boosting type power supply device is reduced. Since the charging unit 41 may use an existing charging circuit, such as an ME4054 charging chip, the charging buck unit 42 may also use an existing buck device, such as a resistor, buck diode, etc., which is not a protection point of the present utility model, and will not be described in detail herein.
Referring to fig. 17, the power interface module 5 includes a USB interface and/or a positive power plate and a negative power plate connected to the positive and negative poles of the power. Specifically, the power interface module 5 may further include a USB interface, and a power positive electrode plate and a power negative electrode plate connected to the positive electrode and the negative electrode of the power, or may also include only the USB interface or the power positive electrode plate and the power negative electrode plate, so long as the connection with the load or the charger can be realized, the load is powered, or the battery module 1 thereof is charged.
For example, in practical applications of the boost power supply device, a rechargeable battery is used to replace an existing battery, such as a 9V battery, and a USB interface is added to charge the rechargeable battery.
In summary, the boost power supply device provided by the utility model adopts the low-power boost module to control the on-off state of the battery boost module, the current detection control unit detects the current of the battery boost module, when no load is connected (such as the flashlight is turned off), the current detection control unit detects that the current value of the low-power boost unit is lower than a preset value, the battery is not externally supplied at the moment, the battery boost module does not consume power, and when the current detection control unit detects that the current value of the low-power boost unit is higher than the preset value, the battery boost module is started to supply power to the load, so that the power supply of the load is realized after the battery is boosted, and the circuit power consumption is reduced.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present utility model and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model as defined in the following claims.
Claims (10)
1. A boost power supply device, comprising: the battery module comprises a battery unit, the battery boost module comprises a battery boost unit and a control input end, the low power boost module comprises a low power boost unit, a current detection control unit and a control output end, the charging module comprises a charging unit, the power interface module comprises a charging input port and a power output port, the power output end is connected with the output end of the battery boost module and the output end of the low power boost module, the charging input port is connected with the input end of the charging module, the control output end is connected with the control input end, the current detection control unit is connected with the control input end of the battery boost module, and the current detection control unit is used for starting the battery boost module when the output current of the low power boost unit exceeds a preset value.
2. The boost power supply apparatus according to claim 1, wherein an input end of the current detection control unit is connected to the battery module, an output end of the current detection control unit is connected to the power interface module through the low power consumption boost unit, and a control output end of the current detection control unit is connected to a control input end of the battery boost module.
3. The boost power supply apparatus according to claim 1, wherein the input terminal of the current detection control unit is connected to the battery module through the low power consumption boost unit, the output terminal of the current detection control unit is connected to the power interface module, and the control output terminal of the current detection control unit is connected to the control input terminal of the battery boost module.
4. The boost power supply apparatus of claim 1, further comprising a buffer isolation module, wherein the low power boost module is connected to the battery boost module and the power interface module through the buffer isolation module.
5. The boost power supply apparatus of claim 4, wherein the buffer isolation module comprises a first diode, a positive electrode of the first diode is connected with the low power boost module, and a negative electrode of the first diode is connected with the battery boost module and the power interface module.
6. The boost power supply apparatus of claim 4, wherein the buffer isolation module comprises a first resistor, one end of the first resistor is connected with the low power boost module, and the other end of the first resistor is connected with the battery boost module and the power interface module.
7. The boost power supply apparatus of claim 4, wherein the battery boost module further comprises an isolation unit, one end of the isolation unit is connected to the power interface module and the buffer isolation module, and the other end of the isolation unit is connected to the battery boost unit.
8. The boost power supply apparatus of claim 1, wherein the battery boost module further comprises an isolation unit, one end of the isolation unit is connected to the power interface module and the low power consumption boost module, and the other end of the isolation unit is connected to the battery boost unit.
9. The boost power supply apparatus according to claim 1, wherein the low power boost unit comprises a low power boost circuit and a linear buck circuit, a 1 st end of the low power boost circuit is connected to the battery module, a 2 nd end of the low power boost circuit is connected to the power interface module through the current detection control unit, and a 3 rd end of the low power boost circuit is grounded through the linear buck circuit.
10. The boost power supply apparatus of claim 9, wherein the linear buck circuit comprises a plurality of series-connected buck diode groups, the anodes of the buck diode groups being connected to the low-power boost circuit, and the cathodes of the buck diode groups being grounded.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223565709.5U CN219627383U (en) | 2022-12-30 | 2022-12-30 | Boosting type power supply device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223565709.5U CN219627383U (en) | 2022-12-30 | 2022-12-30 | Boosting type power supply device |
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| CN219627383U true CN219627383U (en) | 2023-09-01 |
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| CN202223565709.5U Active CN219627383U (en) | 2022-12-30 | 2022-12-30 | Boosting type power supply device |
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