CN106655406B - Single-port charging device - Google Patents
Single-port charging device Download PDFInfo
- Publication number
- CN106655406B CN106655406B CN201710040216.4A CN201710040216A CN106655406B CN 106655406 B CN106655406 B CN 106655406B CN 201710040216 A CN201710040216 A CN 201710040216A CN 106655406 B CN106655406 B CN 106655406B
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- capacitor
- resistor
- charging device
- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to the technical field of charging control, and particularly relates to a single-port charging device. In the embodiment of the invention, the single-port charging device adopts the reset monitor to identify the input voltage so as to realize the function of charging and discharging the single port.
Description
Technical Field
The invention belongs to the technical field of charging control, and particularly relates to a single-port charging device.
Background
With the development of the electronic industry, bluetooth headsets have been widely used in people's daily lives; in the use process of the electronic products, the portable mobile power supply has become an important auxiliary device and is very popular in application.
When the electronic product is used outdoors, when the Bluetooth headset battery is out of power, the mobile charging device can provide timely electric energy supplement. However, the existing single-port charging device is expensive and has a long development period.
Disclosure of Invention
The embodiment of the invention aims to provide a single-port charging device, which aims to solve the problems of high price and long development period of the existing single-port charging device.
The embodiment of the invention is realized in such a way that a single-port charging device comprises:
an electric power input circuit for charging the built-in battery BAT;
an electric energy output circuit for releasing the electric energy of the built-in storage battery BAT to electric equipment;
the electric energy input circuit includes:
the device comprises a reset monitor U1, a charging management chip U2, a resistor R1, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C7 and a switching tube;
the power end VCC of the RESET monitor U1 is connected with the input end of the charging device, the capacitor C7 is connected between the power end VCC of the RESET monitor U1 and the ground, the RESET end RESET of the RESET monitor U1 is connected with the enabling end EN of the charging management chip U2, the resistor R6 is connected between the input end of the charging device and the RESET end RESET of the RESET monitor U1, the capacitor C1 is connected between the input end of the charging device and the ground, the time end TIMER of the charging management chip U2 is grounded through the capacitor C3, the power end VDD of the charging management chip U2 is connected with the input end of the charging device, the first end of the switch tube is connected with the input end of the charging device through the resistor R1, the control end of the switch tube is connected with the driving end DRV of the charging management chip U2, the battery end VBAT of the charging management chip U2 is connected with the positive electrode of the built-in battery BAT, the second end of the switch tube is connected with the positive electrode of the built-in battery BAT, and the capacitor C2 is connected between the battery management chip VBU 2 and the ground and the power end of the serial output circuit of the STAT 1.
In the above structure, the electric power output circuit includes:
the switching power supply chip U3, the capacitor C4, the capacitor C5, the capacitor C6, the resistor R2, the resistor R3, the resistor R4, the resistor R5, the diode D1 and the diode D4;
the setting end SD of the switch power supply chip U3 is connected with the serial bus end STAT1 of the charge management chip U2, the input end VIN of the switch power supply chip U3 is connected with the anode of the built-in storage battery BAT, the resistor R5 and the diode D1 are connected in series between the input end VIN of the switch power supply chip U3 and the setting end SD of the switch power supply chip U3, the resistor R4 is connected between the input end VIN of the switch power supply chip U3 and the setting end SD of the switch power supply chip U3, the capacitor C4 is connected between the input end VIN of the switch power supply chip U3 and the ground, the capacitor C6 is connected between the C+ end and the C-end of the switch power supply chip U3, the output end VOUT of the switch power supply chip U3 is connected with the anode of the diode D4, the cathode of the diode D4 is the output end of the charging device is connected with the input end of the charging device, the resistor R2 and the resistor R3 are connected in series between the output end of the switch power supply chip U3 and the ground, and the common resistor R2 and the resistor R3 are connected between the feedback end of the switch power supply chip U3 and the capacitor C5 is connected with the ground.
In the above structure, the switching tube is a MOS tube Q1, a gate of the MOS tube Q1 is a control end of the switching tube, a drain of the MOS tube Q1 is a first end of the switching tube, and a source of the MOS tube Q1 is a second end of the switching tube.
In the above structure, the charging device input end and the charging device output end are the same port.
In the above structure, the reset monitor U1 adopts an APX809 chip.
In the embodiment of the invention, the single-port charging device adopts the reset monitor to identify the input voltage so as to realize the function of charging and discharging the single port.
Drawings
Fig. 1 is a circuit configuration diagram of a single port charging device according to an embodiment of the present invention;
Detailed Description
The present invention 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 invention 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 invention.
Fig. 1 shows a circuit structure of a single port charging device according to an embodiment of the present invention, and for convenience of explanation, only a portion related to the embodiment of the present invention is shown.
A single port charging device, the single port charging device comprising:
an electric power input circuit 1 for charging a built-in battery BAT;
an electric energy output circuit 2 for releasing the electric energy of the built-in storage battery BAT to electric equipment;
the electric power input circuit 1 includes:
the device comprises a reset monitor U1, a charging management chip U2, a resistor R1, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C7 and a switch tube 11;
the power end VCC of the RESET monitor U1 is connected with the input end of the charging device, the capacitor C7 is connected between the power end VCC of the RESET monitor U1 and the ground, the RESET end RESET of the RESET monitor U1 is connected with the enabling end EN of the charging management chip U2, the resistor R6 is connected between the input end of the charging device and the RESET end RESET of the RESET monitor U1, the capacitor C1 is connected between the input end of the charging device and the ground, the time end TIMER of the charging management chip U2 is grounded through the capacitor C3, the power end VDD of the charging management chip U2 is connected with the input end of the charging device, the first end of the switch tube 11 is connected with the input end of the charging device through the resistor R1, the control end DRV of the switch tube 11 is connected with the driving end DRV of the charging management chip U2, the battery end VBAT of the charging management chip U2 is connected with the positive electrode of the built-in storage battery T, the second end of the switch tube 11 is connected with the positive electrode of the built-in storage battery BAT, and the capacitor C2 is connected with the power end VDD of the charging management chip 1 and the serial output end of the charging management chip U2.
As an embodiment of the present invention, the reset monitor U1 employs an APX809 chip, and the charge management chip U2 employs an MCP73843 chip.
As an embodiment of the present invention, the power output circuit 2 includes:
the switching power supply chip U3, the capacitor C4, the capacitor C5, the capacitor C6, the resistor R2, the resistor R3, the resistor R4, the resistor R5, the diode D1 and the diode D4;
the setting end SD of the switch power supply chip U3 is connected with the serial bus end STAT1 of the charge management chip U2, the input end VIN of the switch power supply chip U3 is connected with the anode of the built-in storage battery BAT, the resistor R5 and the diode D1 are connected in series between the input end VIN of the switch power supply chip U3 and the setting end SD of the switch power supply chip U3, the resistor R4 is connected between the input end VIN of the switch power supply chip U3 and the setting end SD of the switch power supply chip U3, the capacitor C4 is connected between the input end VIN of the switch power supply chip U3 and the ground, the capacitor C6 is connected between the C+ end and the C-end of the switch power supply chip U3, the output end VOUT of the switch power supply chip U3 is connected with the anode of the diode D4, the cathode of the diode D4 is the output end of the charging device is connected with the input end of the charging device, the resistor R2 and the resistor R3 are connected in series between the output end of the switch power supply chip U3 and the ground, and the common resistor R2 and the resistor R3 are connected between the feedback end of the switch power supply chip U3 and the capacitor C5 is connected with the ground.
As an embodiment of the present invention, the switching power supply chip U3 adopts an LM2750 chip.
As an embodiment of the present invention, the switching tube 11 is a MOS tube Q1, a gate of the MOS tube Q1 is a control end of the switching tube 11, a drain of the MOS tube Q1 is a first end of the switching tube 11, and a source of the MOS tube Q1 is a second end of the switching tube 11.
The working principle of the single-port charging device is as follows:
the device is used as an input port:
1. when VIN is connected with 4.6V-5V voltage, the RESET monitor U1 does not reach the RESET voltage value (4.6V), so that the RESET end RESET keeps high level output. The enable terminal EN of the charge management chip U2 obtains a high-level on-charge function, and charges the built-in battery BAT to perform energy replenishment.
2. Because the charging function of the charging management chip U2 is opened, the serial bus end STAT1 of the charging management chip U2 outputs low level to control the switching power supply chip U3 to close output, and the switching power supply chip U3 has no voltage output. Thereby not affecting the charging.
The output port is used for:
1. when VOUT inserts the consumer, wait to charge bluetooth headset for the voltage of earphone is less than RESET monitor U1's RESET voltage value (4.6V), makes RESET monitor U1 RESET, and RESET end RESET output low level. The enable terminal EN of the charge management chip U2 obtains a low-level off-charge function without charging the built-in battery BAT.
2. Because the charging function of the charging management chip U2 is closed, the serial bus end STAT1 outputs a high level to control the switching power supply chip U3 to start output, and the switching power supply chip U3 has 4.5V voltage output, so that the Bluetooth headset is charged.
In the embodiment of the invention, the single-port charging device adopts the reset monitor to identify the input voltage so as to realize the function of charging and discharging the single port.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. A single port charging device, comprising:
an electric power input circuit for charging the built-in battery BAT;
an electric energy output circuit for releasing the electric energy of the built-in storage battery BAT to electric equipment;
the electric energy input circuit includes:
the device comprises a reset monitor U1, a charging management chip U2, a resistor R1, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C7 and a switching tube;
the power end VCC of the RESET monitor U1 is connected with the input end of the charging device, the capacitor C7 is connected between the power end VCC of the RESET monitor U1 and the ground, the RESET end RESET of the RESET monitor U1 is connected with the enabling end EN of the charging management chip U2, the resistor R6 is connected between the input end of the charging device and the RESET end RESET of the RESET monitor U1, the capacitor C1 is connected between the input end of the charging device and the ground, the time end TIMER of the charging management chip U2 is grounded through the capacitor C3, the power end VDD of the charging management chip U2 is connected with the input end of the charging device, the first end of the switch tube is connected with the input end of the charging device through the resistor R1, the control end of the switch tube is connected with the driving end DRV of the charging management chip U2, the battery end VBAT of the charging management chip U2 is connected with the positive electrode of the built-in battery BAT, the second end of the switch tube is connected with the positive electrode of the built-in battery BAT, and the capacitor C2 is connected between the battery management chip VBU 2 and the ground and the power end of the serial output circuit of the STAT 1.
2. The single port charging device of claim 1, wherein the power output circuit comprises:
the switching power supply chip U3, the capacitor C4, the capacitor C5, the capacitor C6, the resistor R2, the resistor R3, the resistor R4, the resistor R5, the diode D1 and the diode D4;
the setting end SD of the switch power supply chip U3 is connected with the serial bus end STAT1 of the charge management chip U2, the input end VIN of the switch power supply chip U3 is connected with the anode of the built-in storage battery BAT, the resistor R5 and the diode D1 are connected in series between the input end VIN of the switch power supply chip U3 and the setting end SD of the switch power supply chip U3, the resistor R4 is connected between the input end VIN of the switch power supply chip U3 and the setting end SD of the switch power supply chip U3, the capacitor C4 is connected between the input end VIN of the switch power supply chip U3 and the ground, the capacitor C6 is connected between the C+ end and the C-end of the switch power supply chip U3, the output end VOUT of the switch power supply chip U3 is connected with the anode of the diode D4, the cathode of the diode D4 is the output end of the charging device is connected with the input end of the charging device, the resistor R2 and the resistor R3 are connected in series between the output end of the switch power supply chip U3 and the ground, and the common resistor R2 and the resistor R3 are connected between the feedback end of the switch power supply chip U3 and the capacitor C5 is connected with the ground.
3. The single port charging device according to claim 1 or 2, wherein the switching tube is a MOS tube Q1, a gate of the MOS tube Q1 is a control end of the switching tube, a drain of the MOS tube Q1 is a first end of the switching tube, and a source of the MOS tube Q1 is a second end of the switching tube.
4. The single port charging device of claim 1, wherein the charging device input and the charging device output are the same port.
5. The single port charging device of claim 1, wherein the reset monitor U1 employs an APX809 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710040216.4A CN106655406B (en) | 2017-01-19 | 2017-01-19 | Single-port charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710040216.4A CN106655406B (en) | 2017-01-19 | 2017-01-19 | Single-port charging device |
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| Publication Number | Publication Date |
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| CN106655406A CN106655406A (en) | 2017-05-10 |
| CN106655406B true CN106655406B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710040216.4A Active CN106655406B (en) | 2017-01-19 | 2017-01-19 | Single-port charging device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111614143B (en) * | 2020-06-10 | 2021-05-04 | 深圳市猿人创新科技有限公司 | Single-port adjustable charge-discharge circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094942A (en) * | 2011-11-04 | 2013-05-08 | 海洋王照明科技股份有限公司 | Constant voltage current-limiting charging circuit and lamp |
| CN203243061U (en) * | 2013-01-14 | 2013-10-16 | 安徽精能绿色能源有限公司 | MPPT solar controller |
| CN105932742A (en) * | 2016-06-08 | 2016-09-07 | 深圳市儒文科技有限公司 | Separable vehicle-mounted charging device with Bluetooth headset and method |
| CN206506319U (en) * | 2017-01-19 | 2017-09-19 | 深圳市冠旭电子股份有限公司 | A kind of single port charging device |
-
2017
- 2017-01-19 CN CN201710040216.4A patent/CN106655406B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094942A (en) * | 2011-11-04 | 2013-05-08 | 海洋王照明科技股份有限公司 | Constant voltage current-limiting charging circuit and lamp |
| CN203243061U (en) * | 2013-01-14 | 2013-10-16 | 安徽精能绿色能源有限公司 | MPPT solar controller |
| CN105932742A (en) * | 2016-06-08 | 2016-09-07 | 深圳市儒文科技有限公司 | Separable vehicle-mounted charging device with Bluetooth headset and method |
| CN206506319U (en) * | 2017-01-19 | 2017-09-19 | 深圳市冠旭电子股份有限公司 | A kind of single port charging device |
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| CN106655406A (en) | 2017-05-10 |
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