CN219960172U - Constant-current charging and boosting discharging circuit - Google Patents
Constant-current charging and boosting discharging circuit Download PDFInfo
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- CN219960172U CN219960172U CN202321269698.8U CN202321269698U CN219960172U CN 219960172 U CN219960172 U CN 219960172U CN 202321269698 U CN202321269698 U CN 202321269698U CN 219960172 U CN219960172 U CN 219960172U
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- 238000010277 constant-current charging Methods 0.000 title claims abstract description 50
- 238000007599 discharging Methods 0.000 title claims abstract description 36
- 239000003990 capacitor Substances 0.000 claims description 86
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 16
- 229910052744 lithium Inorganic materials 0.000 description 16
- 238000007600 charging Methods 0.000 description 15
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 11
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 8
- 230000003446 memory effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 229910052987 metal hydride Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 102100031786 Adiponectin Human genes 0.000 description 1
- 101000775469 Homo sapiens Adiponectin Proteins 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a constant current charging and boosting discharging circuit, wherein the constant current charging and boosting discharging circuit comprises: the constant-current charging circuit is connected with an external output power supply, and the other end of the constant-current charging circuit is connected with the boost discharging circuit; the boost discharging circuit comprises a voltage control circuit and a boost circuit, one end of the voltage control circuit is connected with the constant current charging circuit, and the other end of the voltage control circuit is connected with the boost circuit. The utility model solves the technical problems of complex structure, short service life and the like of the traditional battery.
Description
Technical Field
The utility model relates to the technical field of intelligent distribution networks, in particular to a constant-current charging and boosting discharging circuit.
Background
The traditional power preparation scheme comprises a battery and a super capacitor, wherein the battery is divided into a nickel-hydrogen battery, a nickel-cadmium battery, a lithium battery and the like, the nickel-cadmium battery and the nickel-hydrogen battery have memory effects, namely, the battery is not thoroughly charged and discharged for a long time, marks are easily left in the battery, the capacity of the battery is reduced, the termination voltage/shutdown voltage of the general circuit design is not thoroughly discharged, and the battery is actively charged sometimes because of less electric quantity and insufficient power, so that the capacity is obviously reduced after hundreds of charging and discharging. The lithium ion battery has no memory effect, is particularly suitable for shallow charge and shallow discharge, but the conventional lithium battery has limitation on the minimum discharge voltage and cannot be lower than the set cut-off discharge level, otherwise, the service life of the lithium battery is easy to be reduced, the common super capacitor has the advantages of large discharge current, no memory effect, no minimum discharge cut-off level limitation requirement, long service life and the like, but the super capacitor has low energy density, and when the super capacitor is used for being limited in structure, high in power and long in standby time, the common super capacitor cannot meet the requirements. Therefore, the traditional nickel-hydrogen and nickel-cadmium batteries have memory effect, the requirements of constant current and trickle charge are simultaneously considered, the MCU is needed to participate in the charging process, and meanwhile, the special discharging circuit is needed to be designed to regularly and thoroughly discharge the nickel-hydrogen and nickel-cadmium batteries in consideration of the material characteristics of the nickel-hydrogen and nickel-cadmium batteries, so that the activation treatment is realized, the service life of the batteries is prolonged, and the memory effect is eliminated; although the traditional lithium battery has no memory effect of nickel-hydrogen and nickel-cadmium batteries, the requirements on charging and discharging are strict, a special charging chip is required to be used for managing the lithium battery, the safety coefficient of the lithium battery is not high enough, the overcharge can lead to the damage and explosion of the battery, and the overdischarge can lead to the reduction of the service life of the battery; when traditional super capacitor is used as the power supply scheme, the energy density is low, the volume is larger than that of nickel-hydrogen, nickel-cadmium and lithium batteries, the occupied space is more, the super capacitor is not applicable under the condition of limited structure, and has the characteristic of liquid leakage, and under the condition of high temperature and high humidity, the super capacitor is extremely easy to generate the condition of liquid leakage, so that the terminal is internally short-circuited. Therefore, it is needed to provide a constant current charging and boosting discharging circuit, which solves the technical problems of complex structure, short service life and the like of the existing battery.
Disclosure of Invention
The utility model mainly aims to provide a constant-current charging and boosting discharging circuit, which aims to solve the technical problems of complex structure, short service life and the like of the conventional battery.
In order to achieve the above object, the present utility model provides a constant current charging and boosting discharging circuit, wherein the constant current charging and boosting discharging circuit includes: the constant-current charging circuit is connected with an external output power supply, and the other end of the constant-current charging circuit is connected with the boost discharging circuit; the boost discharging circuit comprises a voltage control circuit and a boost circuit, one end of the voltage control circuit is connected with the constant current charging circuit, and the other end of the voltage control circuit is connected with the boost circuit.
In one of the preferred schemes, the constant current charging circuit comprises a triode V7; the base electrode of the triode V7 is connected with an external output power supply, the emitter electrode of the triode V7 is grounded, and the collector electrode of the triode V7 is respectively connected with the resistor R26 and the grid electrode of the MOS tube V5; the other end of the resistor R26 is connected with the diode SS14 and the 3 pin of the voltage stabilizing integrated chip V10 respectively; the other end of the diode SS14 is connected with an external output power supply; the 1 pin of the voltage stabilizing integrated chip V10 is connected with the source electrode of the MOS tube V5, and the 2 pin of the voltage stabilizing integrated chip V10 is respectively connected with the boost discharging circuit and the resistor R27; the other end of the resistor R27 is connected with the drain electrode of the MOS tube V5.
In one preferred embodiment, the constant current charging circuit further includes a first filter circuit, the first filter circuit includes a capacitor C29, one end of the capacitor C29 is connected to the other end of the diode SS14, and the other end of the capacitor C29 is grounded.
In one of the preferred schemes, the voltage control circuit comprises a triode V8;
the collector electrode of the triode V8 is respectively connected with the constant current charging circuit and the resistor R29, the base electrode of the triode V8 is respectively connected with the reference chip V11 and the other end of the resistor R29, and the other end of the reference chip V11 is grounded; the emitter of the triode V8 is connected with a resistor R30, and the other end of the resistor R30 is grounded.
In one of the preferred schemes, the boost circuit comprises a boost chip D14;
the 1 pin of the boosting chip D14 is connected with the resistor R32, the 10 pin of the boosting chip D14 is connected with the capacitor C25, the 11 pin of the boosting chip D14, the resistor R32 and the other end of the capacitor C25 are all connected with the inductor L4, the other end of the inductor L4 is respectively connected with the resistor R31 and the capacitor C26, and the other end of the resistor R31 is grounded through the resistor R38; the pin 7 of the boosting chip D14 is connected with the other end of the resistor R31, and the pin 9 of the boosting chip D14 is connected with a power supply; the other ends of the pins 2 and 5 of the boost chip D14 and the capacitor C26 are grounded.
In one of the preferred schemes, the boost circuit further comprises a regulating circuit; the regulating circuit comprises a resistor R28 and a resistor R40;
one end of the resistor R28 is connected with the 6 pin of the boost chip D14, the other end of the resistor R28 is respectively connected with the 3 pin of the boost chip D14 and the resistor R40, and the other end of the resistor R40 is grounded.
In one of the preferred schemes, the boost circuit further comprises a protection circuit; the protection circuit comprises a resistor R39, a capacitor C32, a resistor R37 and a capacitor C33; one end of the resistor R39 is connected with the 8 pin of the boost chip D14, one end of the capacitor C32 is connected with the 4 pin of the boost chip D14, one end of the resistor R37 is connected with the 4 pin of the boost chip D14, the other end of the resistor R37 is connected with the capacitor C33, and the other ends of the capacitor C33, the capacitor C32 and the resistor R39 are grounded.
In one of the preferred schemes, the boost circuit further comprises a second filter circuit; the second filter circuit comprises a capacitor C27 and a capacitor C28; the capacitor C28 is connected with the capacitor C27 in parallel, one end of the capacitor C27 is connected with the 6 pin of the boost chip D14, and the other end of the capacitor C27 is grounded.
In the technical scheme, the constant-current charging and boosting discharging circuit comprises a constant-current charging circuit and a boosting discharging circuit, wherein one end of the constant-current charging circuit is connected with an external output power supply, and the other end of the constant-current charging circuit is connected with the boosting discharging circuit; the boost discharging circuit comprises a voltage control circuit and a boost circuit, one end of the voltage control circuit is connected with the constant current charging circuit, and the other end of the voltage control circuit is connected with the boost circuit. The constant-current charging system is simple in structure and convenient to use, the charging process and the final charging level are not required to be controlled by the MCU, and a constant-current charging mode can be started only after an external output power supply is connected for power on; and the battery is thoroughly discharged without a special discharging circuit, so that the technical problems of complex structure, short service life and the like of the conventional battery are solved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a constant current charge and boost discharge circuit according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a constant current charging circuit according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a boost discharging circuit according to an embodiment of the utility model;
fig. 4 shows a nickel-hydrogen and nickel-cadmium battery charging circuit according to an embodiment of the utility model.
Reference numerals illustrate:
1. a constant current charging circuit; 2. a boost discharge circuit; 21. a voltage control circuit; 22. a booster circuit.
The achievement of the object, functional features and advantages of the present utility model will be further described with reference to the drawings in connection with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
Moreover, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the embodiments, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.
Referring to fig. 1 to 3, the present utility model provides a constant current charging and boosting discharging circuit 2, wherein the constant current charging and boosting discharging circuit 2 includes: the constant-current charging circuit 1 and the boost discharging circuit 2, wherein one end of the constant-current charging circuit 1 is connected with an external output power supply, and the other end of the constant-current charging circuit 1 is connected with the boost discharging circuit 2; the boost discharging circuit 2 comprises a voltage control circuit 21 and a boost circuit 22, one end of the voltage control circuit 21 is connected with the constant current charging circuit 1, and the other end of the voltage control circuit 21 is connected with the boost circuit 22.
Specifically, in the present embodiment, the existing battery includes nickel-metal hydride, nickel-cadmium and lithium batteries, wherein the nickel-metal hydride, nickel-cadmium batteries have a memory effect, and a special circuit is required to be designed to perform an activation treatment, otherwise the battery life is reduced; although the lithium battery has no memory effect, the lithium battery has the highest charging requirement, particularly the lowest discharging requirement, the battery is damaged and exploded due to overcharging, the service life of the battery is reduced due to overdischarging, and the like, and a special charging and discharging chip is required for management, so that the design cost is increased; referring to fig. 4, taking the existing nickel-metal hydride and nickel-cadmium battery charging circuit as an example, the XS4 is correspondingly connected to the battery, and the MOS transistor V54 is controlled to be turned on or off by the charge of the MCU, so that constant-current quick charge or trickle full charge is realized, the final charging level of the XS4 is clamped by the zener diode V16, meanwhile, the MCU samples the battery voltage in real time, when the theoretical charging voltage is reached, the charge is turned off, and trickle full charge is realized only by the resistor R205, but the charging and stopping of the battery are controlled by the MCU and cannot be performed autonomously.
Specifically, in the present embodiment, the constant current charging circuit 1 includes a transistor V7; the base electrode of the triode V7 is connected with an external output power supply through a resistor R24, the emitter electrode of the triode V7 is grounded, and the collector electrode of the triode V7 is respectively connected with a resistor R26 and the grid electrode of the MOS tube V5; the other end of the resistor R26 is respectively connected with the diode SS14 and the 3 pin of the voltage stabilizing integrated chip V10, the resistor R26 is a pull-up resistor, a default high level is provided for the MOS tube V5, and abnormal conduction of the MOS tube V5 is prevented; the other end of the diode SS14 is connected with an external output power supply, the diode SS14 is used for preventing backflow, and the backflow is prevented to a 12V network in the process of standby power of the lithium super capacitor; the 1 pin of the voltage stabilizing integrated chip V10 is connected with the source electrode of the MOS tube V5, the 2 pin of the voltage stabilizing integrated chip V10 is respectively connected with the boost discharging circuit 2 and the resistor R27, and constant current charging is realized through 5V voltage difference between the 1 pin and the 2 pin of the voltage stabilizing integrated chip; the other end of the resistor R27 is connected with the drain electrode of the MOS tube V5; the external output power supply is 12V of ACDC output, when the external power supply is powered on, the MOS tube V5 is conducted by default, the resistor R27 is an adjustable resistor, and the magnitude of the output constant-current charging current is adjusted by adjusting the value of the resistor R27; the triode V7 performs logic conversion to convert the input high level into the low level of the control MOS tube V5.
Specifically, in this embodiment, the constant current charging circuit 1 further includes a first filter circuit, where the first filter circuit includes a capacitor C29, one end of the capacitor C29 is connected to the other end of the diode SS14, and the other end of the capacitor C29 is grounded; the capacitor C29 filters out the circuit alternating current component, so that the output direct current is smoother.
Specifically, in the present embodiment, the voltage control circuit 21 includes a transistor V8; the collector of the triode V8 is respectively connected with the constant current charging circuit 1 and the resistor R29, the base of the triode V8 is respectively connected with the reference chip V11 and the other end of the resistor R29, and the resistor R29 is used for preventing the damage of devices caused by overlarge current; the other end of the reference chip V11 is grounded; the emitter of the triode V8 is connected with a resistor R30, the other end of the resistor R30 is connected with a resistor R36, the other end of the resistor R36 is connected with a resistor R41, and the other end of the resistor R41 is grounded; the constant current charging current output by the constant current charging circuit 1 charges a capacitor C26 through a triode V8, and the capacitor C26 is a lithium super capacitor; the reference chip V11 is a 431 reference chip, and when the detection level of the reference chip V11 is higher than that of the reference chip V11, the base of the triode V8 is pulled down, and the triode V8 is turned off by using a constant level detection mechanism of the reference chip V11; the resistor R30, the resistor R36 and the resistor R41 are used for adjusting the charge level of the capacitor C26.
Specifically, in the present embodiment, the booster circuit 22 includes a booster chip D14; the boost chip D14 is configured to boost the level of the capacitor C26 to a target required voltage, so as to meet a power supply requirement, for example, if a part of terminal equipment uses power to require a carrier to work normally, the power needs to be boosted to a 12V network, so that the whole power-down normally works; the utility model is characterized in that a pin 1 of a boosting chip D14 is connected with a resistor R32, a pin 10 of the boosting chip D14 is connected with a capacitor C25, the pin 11 of the boosting chip D14, the resistor R32 and the other end of the capacitor C25 are all connected with an inductor L4, the other end of the inductor L4 is respectively connected with a resistor R31 and a capacitor C26, the other end of the capacitor C26 is grounded, the capacitor C26 is a lithium super capacitor, the lithium super capacitor is charged by receiving constant current charging current transmitted by a voltage control circuit 21, the maximum charging voltage of the lithium super capacitor is 3.95V, and can be set to be 3.8V, the utility model is not particularly limited, the utility model can be particularly set according to the requirement, when the charging level exceeds 3.8V, the triode V8 is turned off, and the constant current charging circuit 1 does not charge the lithium super capacitor; the other end of the resistor R31 is grounded through a resistor R38; the pin 7 of the boosting chip D14 is connected with the other end of the resistor R31, the pin 9 of the boosting chip D14 is connected with the resistor R33, the other end of the resistor R33 is respectively connected with a power end and a capacitor C30, and the other end of the capacitor C30 is grounded; the 2 pin of the boost chip D14 is connected with a capacitor C31, and the other end of the capacitor C31 is grounded; the 5 pin of the boost chip D14 is grounded; the resistor R31 and the resistor R38 are voltage dividing resistors, the enabling pin of the boost chip D14 has certain high voltage limit, the boost chip D14 is prevented from being damaged by overvoltage through the resistor R31 and the resistor R38, the resistor R31 and the resistor R38 are adjustable resistors, and the final discharge level is set by adjusting the resistance values of the resistor R31 and the resistor R38.
Specifically, in the present embodiment, the booster circuit 22 further includes an adjusting circuit; the regulating circuit comprises a resistor R28 and a resistor R40; one end of the resistor R28 is connected with the 6 pin of the boost chip D14, the other end of the resistor R28 is respectively connected with the 3 pin of the boost chip D14 and the resistor R40, and the other end of the resistor R40 is grounded; the resistor R28 and the resistor R40 are used for adjusting the output level of the boost chip D14.
Specifically, in the present embodiment, the booster circuit 22 further includes a protection circuit; the protection circuit comprises a resistor R39, a capacitor C32, a resistor R37 and a capacitor C33; one end of the resistor R39 is connected with the 8 pin of the boost chip D14, the resistor R39 is a current limiting resistor, and the resistor R39 is used for reducing the current of a load end; one end of the capacitor C32 is connected with the 4 pin of the boost chip D14, the capacitor C32 is used for filtering alternating current components in a circuit to enable output direct current to be smoother, one end of the resistor R37 is connected with the 4 pin of the boost chip D14, the other end of the resistor R37 is connected with the capacitor C33, and the other ends of the capacitor C33, the capacitor C32 and the resistor R39 are grounded; the resistor R37 and the capacitor C33 are used for eliminating peak voltage, the resistor R37 plays a role in damping, and the capacitor C33 provides a path for a high-frequency signal by utilizing the characteristic that the higher the frequency of the passing signal is, the lower the capacitance is, so that the peak voltage is converted into heat to be consumed on the resistor, and a buffering effect is achieved.
Specifically, in the present embodiment, the booster circuit 22 further includes a second filter circuit; the second filter circuit comprises a capacitor C27 and a capacitor C28; the capacitor C28 is connected with the capacitor C27 in parallel, one end of the capacitor C27 is connected with the 6 pin of the boost chip D14, and the other end of the capacitor C27 is grounded; the capacitor C27 and the capacitor C28 are used for filtering alternating current components in the circuit, so that output direct current is smoother.
Specifically, in this embodiment, the 6 pin of the boost chip D14 is further connected to a resistor R34 and a diode V6, where the other end of the resistor R34 is grounded, and the resistor R34 is a dummy load, so that the output of the boost chip D14 maintains the output characteristic; the other end of the diode V6 is an output end of the final discharge level, and the other end of the diode V6 is connected with an external module.
The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather as utilizing equivalent structural changes made in the description of the present utility model and the accompanying drawings or directly/indirectly applied to other related technical fields under the inventive concept of the present utility model.
Claims (8)
1. The constant current charge and boost discharge circuit is characterized by comprising:
the constant-current charging circuit is connected with an external output power supply, and the other end of the constant-current charging circuit is connected with the boost discharging circuit; the boost discharging circuit comprises a voltage control circuit and a boost circuit, one end of the voltage control circuit is connected with the constant current charging circuit, and the other end of the voltage control circuit is connected with the boost circuit.
2. The constant current charging and boosting discharging circuit according to claim 1, wherein said constant current charging circuit comprises a transistor V7; the base electrode of the triode V7 is connected with an external output power supply, the emitter electrode of the triode V7 is grounded, and the collector electrode of the triode V7 is respectively connected with the resistor R26 and the grid electrode of the MOS tube V5; the other end of the resistor R26 is connected with the diode SS14 and the 3 pin of the voltage stabilizing integrated chip V10 respectively; the other end of the diode SS14 is connected with an external output power supply; the 1 pin of the voltage stabilizing integrated chip V10 is connected with the source electrode of the MOS tube V5, and the 2 pin of the voltage stabilizing integrated chip V10 is respectively connected with the boost discharging circuit and the resistor R27; the other end of the resistor R27 is connected with the drain electrode of the MOS tube V5.
3. The constant current charging and boosting discharging circuit according to claim 2, wherein said constant current charging circuit further comprises a first filter circuit, said first filter circuit comprises a capacitor C29, one end of said capacitor C29 is connected to the other end of said diode SS14, and the other end of said capacitor C29 is grounded.
4. A constant current charge and boost discharge circuit according to any one of claims 1-3, wherein said control circuit comprises a transistor V8;
the collector electrode of the triode V8 is respectively connected with the constant current charging circuit and the resistor R29, the base electrode of the triode V8 is respectively connected with the reference chip V11 and the other end of the resistor R29, and the other end of the reference chip V11 is grounded; the emitter of the triode V8 is connected with a resistor R30, and the other end of the resistor R30 is grounded.
5. A constant current charge and boost discharge circuit according to any one of claims 1-3, wherein said boost circuit comprises a boost chip D14;
the 1 pin of the boosting chip D14 is connected with the resistor R32, the 10 pin of the boosting chip D14 is connected with the capacitor C25, the 11 pin of the boosting chip D14, the resistor R32 and the other end of the capacitor C25 are all connected with the inductor L4, the other end of the inductor L4 is respectively connected with the resistor R31 and the capacitor C26, and the other end of the resistor R31 is grounded through the resistor R38; the pin 7 of the boosting chip D14 is connected with the other end of the resistor R31, and the pin 9 of the boosting chip D14 is connected with a power supply; the other ends of the pins 2 and 5 of the boost chip D14 and the capacitor C26 are grounded.
6. The constant current charge and boost discharge circuit of claim 5, wherein said boost circuit further comprises an adjusting circuit; the regulating circuit comprises a resistor R28 and a resistor R40;
one end of the resistor R28 is connected with the 6 pin of the boost chip D14, the other end of the resistor R28 is respectively connected with the 3 pin of the boost chip D14 and the resistor R40, and the other end of the resistor R40 is grounded.
7. The constant current charge and boost discharge circuit of claim 5, wherein said boost circuit further comprises a protection circuit; the protection circuit comprises a resistor R39, a capacitor C32, a resistor R37 and a capacitor C33; one end of the resistor R39 is connected with the 8 pin of the boost chip D14, one end of the capacitor C32 is connected with the 4 pin of the boost chip D14, one end of the resistor R37 is connected with the 4 pin of the boost chip D14, the other end of the resistor R37 is connected with the capacitor C33, and the other ends of the capacitor C33, the capacitor C32 and the resistor R39 are grounded.
8. The constant current charge and boost discharge circuit of claim 5, wherein said boost circuit further comprises a second filter circuit; the second filter circuit comprises a capacitor C27 and a capacitor C28; the capacitor C28 is connected with the capacitor C27 in parallel, one end of the capacitor C27 is connected with the 6 pin of the boost chip D14, and the other end of the capacitor C27 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321269698.8U CN219960172U (en) | 2023-05-24 | 2023-05-24 | Constant-current charging and boosting discharging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321269698.8U CN219960172U (en) | 2023-05-24 | 2023-05-24 | Constant-current charging and boosting discharging circuit |
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| Publication Number | Publication Date |
|---|---|
| CN219960172U true CN219960172U (en) | 2023-11-03 |
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| CN202321269698.8U Active CN219960172U (en) | 2023-05-24 | 2023-05-24 | Constant-current charging and boosting discharging circuit |
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| CN (1) | CN219960172U (en) |
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