CN205377357U - Charging circuit - Google Patents
Charging circuit Download PDFInfo
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- CN205377357U CN205377357U CN201620019858.7U CN201620019858U CN205377357U CN 205377357 U CN205377357 U CN 205377357U CN 201620019858 U CN201620019858 U CN 201620019858U CN 205377357 U CN205377357 U CN 205377357U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The utility model belongs to the technical field of electronic equipment, especially, relate to a charging circuit. The embodiment of the utility model provides an in, detect the voltage of power, rechargeable battery, voltage conversion module respectively through setting up control module, furthest's the energy that utilizes the power, control module control voltage conversion module is direct charges to rechargeable battery, has improved charge efficiency to the loss of electric energy is also smaller in the charging process, in addition, the voltage conversion module adopts parallelly connected boost module and voltage reducing module, can realize can both charging to rechargeable battery when charging voltage is higher than or be less than rechargeable battery's ceiling voltage.
Description
Technical field
This utility model belongs to technical field of electronic equipment, particularly relates to a kind of charging circuit.
Background technology
Existing charging circuit generally has two kinds: voltage-dropping type charging circuit and booster type charging circuit, when charging voltage is higher than the ceiling voltage of rechargeable battery, adopt voltage-dropping type charging circuit, when charging voltage is lower than the ceiling voltage of rechargeable battery, adopt booster type charging circuit.
In order to ensure output electric current nonoverload, the electric current that charging circuit is arranged is generally smaller, so it is slow to charge, such charge efficiency is relatively low.Further, since existing charging circuit cannot maximally utilise power supply energy, battery being charged, therefore in charging process, the loss of electric energy is also higher.
Utility model content
The purpose of this utility model embodiment is in that to provide a kind of charging circuit, it is intended to solves existing charging circuit and there is the problem that charge efficiency is low, electric energy loss is high.
This utility model embodiment is achieved in that a kind of charging circuit, is connected between power supply and rechargeable battery, and described charging circuit includes:
It is connected to the voltage transformation module between power supply and rechargeable battery；
Respectively to described power supply, rechargeable battery, voltage transformation module voltage detect, the control module that described voltage transformation module is controlled, for utilizing the energy of described power supply, control described voltage transformation module and directly rechargeable battery be charged；
Described voltage transformation module includes the boost module being connected between described power supply and rechargeable battery；Or
Described voltage transformation module includes being connected in parallel on the boost module between described power supply and rechargeable battery and voltage reduction module.
In this utility model embodiment, by arrange control module respectively to power supply, rechargeable battery, voltage transformation module voltage detect, utilize the energy of power supply to greatest extent, control module control voltage transformation module directly rechargeable battery to be charged, improve charge efficiency, and the loss of electric energy is also smaller in charging process.
Accompanying drawing explanation
Fig. 1 is the function structure chart of the charging circuit that this utility model first embodiment provides；
Fig. 2 is the function structure chart of the charging circuit that this utility model the second embodiment provides；
Fig. 3 is the first circuit structure diagram of the charging circuit that this utility model embodiment provides；
Fig. 4 is the second circuit structure diagram of the charging circuit that this utility model embodiment provides；
Fig. 5 is the first circuit structure diagram of the first current limliting module that this utility model embodiment provides；
Fig. 6 is the second circuit structure diagram of the first current limliting module that this utility model embodiment provides；
Fig. 7 is the first circuit structure diagram of the second current limliting module that this utility model embodiment provides；
Fig. 8 is the second circuit structure diagram of the second current limliting module that this utility model embodiment provides；
Fig. 9 is the first circuit structure diagram of the voltage sample module that this utility model embodiment provides；
Figure 10 is the second circuit structure diagram of the voltage sample module that this utility model embodiment provides；
Figure 11 is the third circuit structure diagram of the voltage sample module that this utility model embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
Fig. 1 illustrates the modular structure of the charging circuit that this utility model first embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
A kind of charging circuit, is connected between power supply and rechargeable battery, and described charging circuit includes:
It is connected to the voltage transformation module 1 between power supply and rechargeable battery；
Respectively to described power supply, rechargeable battery, voltage transformation module 1 voltage detect, the control module 2 that described voltage transformation module 1 is controlled, for utilizing the energy of described power supply, control described voltage transformation module 1 and directly rechargeable battery be charged；
Described voltage transformation module 1 includes the boost module 11 being connected between described power supply and rechargeable battery；Or
Described voltage transformation module 1 includes the boost module 11 and the voltage reduction module 12 that are connected in parallel between described power supply and rechargeable battery.
Voltage transformation module 1 adopts boost module 11 and the voltage reduction module 12 of parallel connection, it is possible to achieve when charging voltage is higher or lower than the ceiling voltage of rechargeable battery, can both rechargeable battery be charged.
Fig. 3 illustrates the first circuit structure of the charging circuit that this utility model embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described charging circuit also includes anti-reverse discharge diode D1, and described boost module 11 includes inductance L1, metal-oxide-semiconductor Q3, diode D3, and described voltage reduction module 12 includes metal-oxide-semiconductor Q1, inductance L2, diode D2；
Described inductance L1 and diode D3 is connected between described power supply and rechargeable battery, and the drain electrode of described metal-oxide-semiconductor Q3 is connected on the public connecting end of described inductance L1 and diode D3, the source ground of described metal-oxide-semiconductor Q3, and the grid of described metal-oxide-semiconductor Q3 connects described control module 2；
Described anti-reverse discharge diode D1, metal-oxide-semiconductor Q1, inductance L2 are connected between described power supply and rechargeable battery, the grid of described metal-oxide-semiconductor Q1 connects described control module 2, the negative electrode of described diode D2 connects the public connecting end of described metal-oxide-semiconductor Q1 and inductance L2, the plus earth of described diode D2.
Arrange anti-reverse discharge diode D1's in order that prevent charging process in, occur rechargeable battery back discharge phenomenon produce.
Fig. 4 illustrates the second circuit structure of the charging circuit that this utility model embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described charging circuit also includes anti-reverse discharge diode D1, described boost module 11 is synchronous boost, described voltage reduction module 12 is synchronous buck, described boost module 11 includes inductance L1, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, and described voltage reduction module 12 includes metal-oxide-semiconductor Q1, inductance L2, metal-oxide-semiconductor Q2；
Described inductance L1 and metal-oxide-semiconductor Q4 is connected between described power supply and rechargeable battery, the grid of described metal-oxide-semiconductor Q4 connects described control module 2, the drain electrode of described metal-oxide-semiconductor Q3 connects the public connecting end of described inductance L1 and metal-oxide-semiconductor Q4, the source ground of described metal-oxide-semiconductor Q3, the grid of described metal-oxide-semiconductor Q3 connects described control module 2；
Described anti-reverse discharge diode D1, metal-oxide-semiconductor Q1, inductance L2 are connected between described power supply and rechargeable battery, the grid of described metal-oxide-semiconductor Q1 connects described control module 2, the drain electrode of described metal-oxide-semiconductor Q2 connects the public connecting end of described metal-oxide-semiconductor Q1 and inductance L2, the source ground of described metal-oxide-semiconductor Q2, the grid of described metal-oxide-semiconductor Q2 connects described control module 2.
Fig. 2 illustrates the modular structure of the charging circuit that this utility model the second embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described charging circuit also includes:
It is connected between described voltage transformation module 1 and rechargeable battery, and the first current limliting module 3 being connected with described control module 2.
As this utility model one embodiment, described charging circuit also includes:
It is connected between described power supply and voltage transformation module 1, and the second current limliting module 4 being connected with described control module 2.
As this utility model one embodiment, described charging circuit also includes voltage sample module 5, the input of described voltage sample module 5 connects described power supply and/or voltage transformation module 1 and rechargeable battery respectively, and the outfan of described voltage sample module 5 connects described control module 2 simultaneously.
Fig. 5 illustrates the first circuit structure of the first current limliting module that this utility model embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described first current limliting module 3 includes metal-oxide-semiconductor Q5, and the drain electrode of described metal-oxide-semiconductor Q5 connects described voltage transformation module 1, and the source electrode of described metal-oxide-semiconductor Q5 connects described rechargeable battery, and the grid of described metal-oxide-semiconductor Q5 connects described control module 2.
Fig. 6 illustrates the second circuit structure of the first current limliting module that this utility model embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described first current limliting module 3 includes resistance R2 and comparator A2, described resistance R2 is connected between described voltage transformation module 1 and rechargeable battery, the in-phase input end of described comparator A2 and inverting input connect the two ends of described resistance R2 respectively, and the output of described comparator A2 terminates described control module 2.
Fig. 7 illustrates the first circuit structure of the second current limliting module that this utility model embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described second current limliting module 4 includes resistance R1 and comparator A1, described resistance R1 is connected between described power supply and voltage transformation module 1, the in-phase input end of described comparator A1 and inverting input connect the two ends of described resistance R1 respectively, and the output of described comparator A1 terminates described control module 2.
Fig. 8 illustrates the second circuit structure of the second current limliting module that this utility model embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described second current limliting module 4 includes resistance R1, resistance R5, resistance R6 and comparator A1, described resistance R1 is connected between described power supply and voltage transformation module 1, one end of described R1 connects the in-phase input end of described comparator A1 and connects described power supply, the other end of described R1 is connected described voltage transformation module 1 and is connected the inverting input of described comparator A1 by described resistance R5, described resistance R6 is connected between inverting input and the outfan of described comparator A1, the output of described comparator A1 terminates described control module 2.
Fig. 9 illustrates the first circuit structure of the voltage sample module that this utility model embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described voltage sample module 5 includes the input that one end is voltage sample module 5 of resistance R3, described resistance R3, the outfan that the other end is voltage sample module 5 of described resistance R3.
Figure 10 illustrates the second circuit structure of the voltage sample module that this utility model embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described voltage sample module 5 includes resistance R3 and resistance R4, the input that one end is voltage sample module 5 of described resistance R3, the outfan that the other end is voltage sample module 5 of described resistance R3 is also connected with one end of resistance R4, the other end ground connection of resistance R4.
Figure 11 illustrates the third circuit structure of the voltage sample module that this utility model embodiment provides, and for the ease of illustrating, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described voltage sample module 5 includes resistance R3, resistance R4 and metal-oxide-semiconductor Q6, the input that one end is voltage sample module 5 of described resistance R3, the outfan that the other end is voltage sample module 5 of described resistance R3 is also connected with one end of resistance R4, the other end of described resistance R4 connects the drain electrode of described metal-oxide-semiconductor Q6, the grid of described metal-oxide-semiconductor Q6 connects described control module 2, the source ground of described metal-oxide-semiconductor Q6.
Charging circuit also includes filter capacitor C1 and filter capacitor C2, one end of filter capacitor C1 is connected between voltage transformation module 1 and the first current limliting module 3, the other end ground connection of filter capacitor C1, one end of filter capacitor C2 is connected between the first current limliting module 3 and rechargeable battery, the other end ground connection of filter capacitor C2.
In this utility model embodiment, by arrange control module respectively to power supply, rechargeable battery, voltage transformation module voltage detect, utilize the energy of power supply to greatest extent, control module control voltage transformation module directly rechargeable battery to be charged, improve charge efficiency, and the loss of electric energy is also smaller in charging process.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (10)
1. a charging circuit, is connected between power supply and rechargeable battery, it is characterised in that described charging circuit includes:
It is connected to the voltage transformation module between power supply and rechargeable battery；
Respectively to described power supply, rechargeable battery, voltage transformation module voltage detect, the control module that described voltage transformation module is controlled, for utilizing the energy of described power supply, control described voltage transformation module and directly rechargeable battery be charged；
Described voltage transformation module includes the boost module being connected between described power supply and rechargeable battery；Or
Described voltage transformation module includes being connected in parallel on the boost module between described power supply and rechargeable battery and voltage reduction module.
2. charging circuit as claimed in claim 1, it is characterised in that described charging circuit also includes anti-reverse discharge diode D1, and described boost module includes inductance L1, metal-oxide-semiconductor Q3, diode D3, and described voltage reduction module includes metal-oxide-semiconductor Q1, inductance L2, diode D2；
Described inductance L1 and diode D3 is connected between described power supply and rechargeable battery, and the drain electrode of described metal-oxide-semiconductor Q3 is connected on the public connecting end of described inductance L1 and diode D3, the source ground of described metal-oxide-semiconductor Q3, and the grid of described metal-oxide-semiconductor Q3 connects described control module；
Described anti-reverse discharge diode D1, metal-oxide-semiconductor Q1, inductance L2 are connected between described power supply and rechargeable battery, the grid of described metal-oxide-semiconductor Q1 connects described control module, the negative electrode of described diode D2 connects the public connecting end of described metal-oxide-semiconductor Q1 and inductance L2, the plus earth of described diode D2.
3. charging circuit as claimed in claim 1, it is characterized in that, described charging circuit also includes anti-reverse discharge diode D1, described boost module is synchronous boost, described voltage reduction module is synchronous buck, described boost module includes inductance L1, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, and described voltage reduction module includes metal-oxide-semiconductor Q1, inductance L2, metal-oxide-semiconductor Q2；
Described inductance L1 and metal-oxide-semiconductor Q4 is connected between described power supply and rechargeable battery, the grid of described metal-oxide-semiconductor Q4 connects described control module, the drain electrode of described metal-oxide-semiconductor Q3 connects the public connecting end of described inductance L1 and metal-oxide-semiconductor Q4, the source ground of described metal-oxide-semiconductor Q3, the grid of described metal-oxide-semiconductor Q3 connects described control module；
Described anti-reverse discharge diode D1, metal-oxide-semiconductor Q1, inductance L2 are connected between described power supply and rechargeable battery, the grid of described metal-oxide-semiconductor Q1 connects described control module, the drain electrode of described metal-oxide-semiconductor Q2 connects the public connecting end of described metal-oxide-semiconductor Q1 and inductance L2, the source ground of described metal-oxide-semiconductor Q2, the grid of described metal-oxide-semiconductor Q2 connects described control module.
4. charging circuit as claimed in claim 1, it is characterised in that described charging circuit also includes:
It is connected between described voltage transformation module and rechargeable battery, and the first current limliting module being connected with described control module, described first current limliting module includes metal-oxide-semiconductor Q5, the drain electrode of described metal-oxide-semiconductor Q5 connects described voltage transformation module, the source electrode of described metal-oxide-semiconductor Q5 connects described rechargeable battery, and the grid of described metal-oxide-semiconductor Q5 connects described control module.
5. charging circuit as claimed in claim 1, it is characterized in that, described charging circuit also includes: be connected between described voltage transformation module and rechargeable battery, and the first current limliting module being connected with described control module, described first current limliting module includes resistance R2 and comparator A2, described resistance R2 is connected between described voltage transformation module and rechargeable battery, the in-phase input end of described comparator A2 and inverting input connect the two ends of described resistance R2 respectively, and the output of described comparator A2 terminates described control module.
6. charging circuit as claimed in claim 1, it is characterized in that, described charging circuit also includes voltage sample module, described voltage sample module includes resistance R3, the input that one end is voltage sample module of described resistance R3, the outfan that the other end is voltage sample module of described resistance R3, the input of described voltage sample module connects described power supply and/or voltage transformation module and rechargeable battery respectively, and the outfan of described voltage sample module connects described control module simultaneously.
7. charging circuit as claimed in claim 1, it is characterized in that, described charging circuit also includes voltage sample module, described voltage sample module includes resistance R3 and resistance R4, the input that one end is voltage sample module of described resistance R3, the outfan that the other end is voltage sample module of described resistance R3 is also connected with one end of resistance R4, the other end ground connection of resistance R4, the input of described voltage sample module connects described power supply and/or voltage transformation module and rechargeable battery respectively, and the outfan of described voltage sample module connects described control module simultaneously.
8. charging circuit as claimed in claim 1, it is characterized in that, described charging circuit also includes voltage sample module, described voltage sample module includes resistance R3, resistance R4 and metal-oxide-semiconductor Q6, the input that one end is voltage sample module of described resistance R3, the outfan that the other end is voltage sample module of described resistance R3 is also connected with one end of resistance R4, the other end of described resistance R4 connects the drain electrode of described metal-oxide-semiconductor Q6, the grid of described metal-oxide-semiconductor Q6 connects described control module, the source ground of described metal-oxide-semiconductor Q6, the input of described voltage sample module connects described power supply and/or voltage transformation module and rechargeable battery respectively, the outfan of described voltage sample module connects described control module simultaneously.
9. charging circuit as claimed in claim 1, it is characterised in that described charging circuit also includes: be connected between described power supply and voltage transformation module, and the second current limliting module being connected with described control module；
Described second current limliting module includes resistance R1 and comparator A1, described resistance R1 is connected between described power supply and voltage transformation module, the in-phase input end of described comparator A1 and inverting input connect the two ends of described resistance R1 respectively, and the output of described comparator A1 terminates described control module.
10. charging circuit as claimed in claim 1, it is characterised in that described charging circuit also includes: be connected between described power supply and voltage transformation module, and the second current limliting module being connected with described control module；
Described second current limliting module includes resistance R1, resistance R5, resistance R6 and comparator A1, described resistance R1 is connected between described power supply and voltage transformation module, one end of described R1 connects the in-phase input end of described comparator A1 and connects described power supply, the other end of described R1 is connected described voltage transformation module and is connected the inverting input of described comparator A1 by described resistance R5, described resistance R6 is connected between inverting input and the outfan of described comparator A1, and the output of described comparator A1 terminates described control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620019858.7U CN205377357U (en) | 2016-01-08 | 2016-01-08 | Charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620019858.7U CN205377357U (en) | 2016-01-08 | 2016-01-08 | Charging circuit |
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| CN205377357U true CN205377357U (en) | 2016-07-06 |
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| CN201620019858.7U Active CN205377357U (en) | 2016-01-08 | 2016-01-08 | Charging circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706955A (en) * | 2016-08-09 | 2018-02-16 | 中兴通讯股份有限公司 | Terminal charging device and method |
| WO2018068710A1 (en) * | 2016-10-12 | 2018-04-19 | 常州市派腾电子技术服务有限公司 | Electronic cigarette, and power supply structure thereof |
-
2016
- 2016-01-08 CN CN201620019858.7U patent/CN205377357U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706955A (en) * | 2016-08-09 | 2018-02-16 | 中兴通讯股份有限公司 | Terminal charging device and method |
| WO2018068710A1 (en) * | 2016-10-12 | 2018-04-19 | 常州市派腾电子技术服务有限公司 | Electronic cigarette, and power supply structure thereof |
| US11641881B2 (en) | 2016-10-12 | 2023-05-09 | Changzhou Patent Electronic Technology Co., Ltd. | Electronic cigarette and power supply structure thereof |
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