CN106253398B - A kind of circuit for detecting and charger based on charging - Google Patents
A kind of circuit for detecting and charger based on charging Download PDFInfo
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- CN106253398B CN106253398B CN201610712721.4A CN201610712721A CN106253398B CN 106253398 B CN106253398 B CN 106253398B CN 201610712721 A CN201610712721 A CN 201610712721A CN 106253398 B CN106253398 B CN 106253398B
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- resistance
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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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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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 charging circuit technical field more particularly to a kind of circuit for detecting and charger based on charging.In embodiments of the present invention, circuit for detecting based on charging includes USB charging interface J1 and charge controlling chip U1, circuit for detecting based on charging further includes discrete component, first switch tube and second switch, the circuit can be with Auto-Sensing to being electrically charged whether equipment is inserted into, hardware button is eliminated, it is very convenient, while when without equipment insertion is electrically charged, charger can be allowed to enter battery saving mode, extend the service life of product.
Description
Technical field
The invention belongs to charging circuit technical field more particularly to a kind of circuit for detecting and charger based on charging.
Background technique
Current general USB charging equipment does not have detecting function when externally charging, and can not judge mobile phone or be electrically charged to set
It is standby whether to be inserted into USB charging equipment, either judge to have mobile phone or be electrically charged equipment by hardware switch to be inserted into
In USB charging equipment.The inconvenience in this way, USB charging equipment works together.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of circuit for detecting and charger based on charging, it is intended to solve present
USB charging equipment there are problems that can not Auto-Sensing to being electrically charged whether equipment is inserted into.
The embodiments of the present invention are implemented as follows, a kind of circuit for detecting based on charging, including USB charging interface J1 and fills
Electric control chip U1, the circuit for detecting based on charging further include:
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, capacitor C1, first switch tube and second switch
Pipe；
The high potential of the first switch tube terminates the USB charging interface J1, the cold end of the first switch tube
It is grounded by resistance R6, the control terminal of the first switch tube connects the enable end of the charge controlling chip U1 by resistance R1
EN, the resistance R2 are connected between the control terminal and ground of the first switch tube, the cold end of the first switch tube and
The public connecting end of resistance R6 meets the output end OUT of the charge controlling chip U1 by resistance R5, and the capacitor C1 is connected to
Between the output end OUT and ground of the charge controlling chip U1, the resistance R3 and resistance R4 are connected on the USB charging interface
Between J1 and ground, the control of the second switch terminates the public connecting end of the resistance R3 and resistance R4, and described second opens
The high potential for closing pipe terminates the test side USB_IN of the charge controlling chip U1, the low potential termination of the second switch
Ground.
In above structure, the first switch tube uses metal-oxide-semiconductor Q1, and the grid of the metal-oxide-semiconductor Q1 is the first switch
The control terminal of pipe, the drain electrode of the metal-oxide-semiconductor Q1 are the hot end of the first switch tube, and the source electrode of the metal-oxide-semiconductor Q1 is institute
State the cold end of first switch tube.
In above structure, the second switch uses triode Q2, and the base stage of the triode Q2 is opened for described second
Close the control terminal of pipe, the hot end of the extremely described second switch of the current collection of the triode Q2, the hair of the triode Q2
Emitter-base bandgap grading is the cold end of the second switch.
The another object of the embodiment of the present invention is to provide a kind of charger, described including the circuit for detecting based on charging
Circuit for detecting based on charging includes USB charging interface J1 and charge controlling chip U1, and the circuit for detecting based on charging is also
Include:
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, capacitor C1, first switch tube and second switch
Pipe；
The high potential of the first switch tube terminates the USB charging interface J1, the cold end of the first switch tube
It is grounded by resistance R6, the control terminal of the first switch tube connects the enable end of the charge controlling chip U1 by resistance R1
EN, the resistance R2 are connected between the control terminal and ground of the first switch tube, the cold end of the first switch tube and
The public connecting end of resistance R6 meets the output end OUT of the charge controlling chip U1 by resistance R5, and the capacitor C1 is connected to
Between the output end OUT and ground of the charge controlling chip U1, the resistance R3 and resistance R4 are connected on the USB charging interface
Between J1 and ground, the control of the second switch terminates the public connecting end of the resistance R3 and resistance R4, and described second opens
The high potential for closing pipe terminates the test side USB_IN of the charge controlling chip U1, the low potential termination of the second switch
Ground.
In above structure, the first switch tube uses metal-oxide-semiconductor Q1, and the grid of the metal-oxide-semiconductor Q1 is the first switch
The control terminal of pipe, the drain electrode of the metal-oxide-semiconductor Q1 are the hot end of the first switch tube, and the source electrode of the metal-oxide-semiconductor Q1 is institute
State the cold end of first switch tube.
In above structure, the second switch uses triode Q2, and the base stage of the triode Q2 is opened for described second
Close the control terminal of pipe, the hot end of the extremely described second switch of the current collection of the triode Q2, the hair of the triode Q2
Emitter-base bandgap grading is the cold end of the second switch.
In embodiments of the present invention, the circuit for detecting based on charging includes USB charging interface J1 and charge controlling chip U1,
Circuit for detecting based on charging further includes discrete component, first switch tube and second switch, which can be arrived with Auto-Sensing
It is electrically charged whether equipment is inserted into, eliminates hardware button, it is very convenient, while when without equipment insertion is electrically charged, it can allow and fill
Electric appliance enters battery saving mode, extends the service life of product.
Detailed description of the invention
Fig. 1 is the structure chart of the circuit for detecting provided in an embodiment of the present invention based on charging.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The structure that Fig. 1 shows the circuit for detecting provided in an embodiment of the present invention based on charging is only shown for ease of description
Part related to the embodiment of the present invention is gone out.
A kind of circuit for detecting based on charging, including USB charging interface J1 and charge controlling chip U1, it is described based on charging
Circuit for detecting further include:
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, capacitor C1, first switch tube 1 and second open
Close pipe 2；
The high potential of the first switch tube 1 terminates the USB charging interface J1, the low potential of the first switch tube 1
End is grounded by resistance R6, and the control terminal of the first switch tube 1 connects the enabled of the charge controlling chip U1 by resistance R1
EN, the resistance R2 is held to be connected between the control terminal and ground of the first switch tube 1, the low potential of the first switch tube 1
The public connecting end of end and resistance R6 meet the output end OUT of the charge controlling chip U1, the capacitor C1 company by resistance R5
It connects between the output end OUT and ground of the charge controlling chip U1, the resistance R3 and resistance R4 are connected on the USB charging
Between interface J1 and ground, the control of the second switch 2 terminates the public connecting end of the resistance R3 and resistance R4, and described the
The high potential of two switching tubes 2 terminates the test side USB_IN of the charge controlling chip U1, the low potential of the second switch 2
End ground connection.
As an embodiment of the present invention, the first switch tube 1 uses metal-oxide-semiconductor Q1, and the grid of the metal-oxide-semiconductor Q1 is described
The control terminal of first switch tube 1, the drain electrode of the metal-oxide-semiconductor Q1 are the hot end of the first switch tube 1, the metal-oxide-semiconductor Q1
Source electrode be the first switch tube 1 cold end.
As an embodiment of the present invention, the second switch 2 uses triode Q2, and the base stage of the triode Q2 is institute
State the control terminal of second switch 2, the hot end of the extremely described second switch 2 of the current collection of the triode Q2, described three
The cold end of the extremely described second switch 2 of transmitting of pole pipe Q2.
As shown in Figure 1, the circuit for detecting based on charging further includes charging circuit, charging circuit and USB charging interface J1 connect
It connects, since the structure of charging circuit is conventional structure, which is not described herein again.
The embodiment of the present invention also provides a kind of charger, including the circuit for detecting based on charging, the detecing based on charging
Slowdown monitoring circuit includes USB charging interface J1 and charge controlling chip U1, the circuit for detecting based on charging further include:
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, capacitor C1, first switch tube 1 and second open
Close pipe 2；
The high potential of the first switch tube 1 terminates the USB charging interface J1, the low potential of the first switch tube 1
End is grounded by resistance R6, and the control terminal of the first switch tube 1 connects the enabled of the charge controlling chip U1 by resistance R1
EN, the resistance R2 is held to be connected between the control terminal and ground of the first switch tube 1, the low potential of the first switch tube 1
The public connecting end of end and resistance R6 meet the output end OUT of the charge controlling chip U1, the capacitor C1 company by resistance R5
It connects between the output end OUT and ground of the charge controlling chip U1, the resistance R3 and resistance R4 are connected on the USB charging
Between interface J1 and ground, the control of the second switch 2 terminates the public connecting end of the resistance R3 and resistance R4, and described the
The high potential of two switching tubes 2 terminates the test side USB_IN of the charge controlling chip U1, the low potential of the second switch 2
End ground connection.
As an embodiment of the present invention, the first switch tube 1 uses metal-oxide-semiconductor Q1, and the grid of the metal-oxide-semiconductor Q1 is described
The control terminal of first switch tube 1, the drain electrode of the metal-oxide-semiconductor Q1 are the hot end of the first switch tube 1, the metal-oxide-semiconductor Q1
Source electrode be the first switch tube 1 cold end.
As an embodiment of the present invention, the second switch 2 uses triode Q2, and the base stage of the triode Q2 is institute
State the control terminal of second switch 2, the hot end of the extremely described second switch 2 of the current collection of the triode Q2, described three
The cold end of the extremely described second switch 2 of transmitting of pole pipe Q2.
Working principle are as follows:
When no mobile phone is inserted into charger, the junction (EXT_CHG_DET) of metal-oxide-semiconductor Q1 and USB charging interface J1 is low
Level, Q2 cut-off, the test side USB_IN of charge controlling chip U1 are high level；System charge controlling chip U1's is enabled at this time
End EN is low level, Q1 cut-off, at this time without external charging.
When the mobile phone insertion for having external charging, EXT_CHG_DET has the high level of a moment, Q2 conducting, charge control
Also moment by high level switchs to low level to the test side USB_IN of chip U1, and charge controlling chip U1 controls enable end EN and is at this time
High level, then Q1 is connected, and EXT_CHG_DET is linked into ground by Q1, R6, is pulled low, charger starts externally to charge.
In embodiments of the present invention, the circuit for detecting based on charging includes USB charging interface J1 and charge controlling chip U1,
Circuit for detecting based on charging further includes discrete component, first switch tube and second switch, which can be arrived with Auto-Sensing
It is electrically charged whether equipment is inserted into, eliminates hardware button, it is very convenient, while when without equipment insertion is electrically charged, it can allow and fill
Electric appliance enters battery saving mode, extends the service life of product.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of circuit for detecting based on charging, which is characterized in that including USB charging interface J1 and charge controlling chip U1, institute
State the circuit for detecting based on charging further include:
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, capacitor C1, first switch tube and second switch；
The high potential of the first switch tube terminates the USB charging interface J1, and the cold end of the first switch tube passes through
Resistance R6 ground connection, the control terminal of the first switch tube meet the enable end EN of the charge controlling chip U1, institute by resistance R1
It states resistance R2 to be connected between the control terminal and ground of the first switch tube, the cold end and resistance R6 of the first switch tube
Public connecting end the output end OUT of the charge controlling chip U1 is met by resistance R5, the capacitor C1 is connected to described fill
Between the output end OUT and ground of electric control chip U1, the resistance R3 and resistance R4 are connected on the USB charging interface J1 and ground
Between, the control of the second switch terminates the public connecting end of the resistance R3 and resistance R4, the second switch
High potential terminates the test side USB_IN of the charge controlling chip U1, the cold end ground connection of the second switch；
The circuit for detecting based on charging further includes charging circuit, and the charging circuit is connect with the USB charging interface J1.
2. as described in claim 1 based on the circuit for detecting of charging, which is characterized in that the first switch tube uses metal-oxide-semiconductor
The grid of Q1, the metal-oxide-semiconductor Q1 are the control terminal of the first switch tube, and the drain electrode of the metal-oxide-semiconductor Q1 is the first switch
The hot end of pipe, the source electrode of the metal-oxide-semiconductor Q1 are the cold end of the first switch tube.
3. as described in claim 1 based on the circuit for detecting of charging, which is characterized in that the second switch uses triode
The base stage of Q2, the triode Q2 are the control terminal of the second switch, the current collection extremely described second of the triode Q2
The hot end of switching tube, the cold end of the extremely described second switch of transmitting of the triode Q2.
4. a kind of charger, which is characterized in that including the circuit for detecting based on charging, the circuit for detecting based on charging includes
USB charging interface J1 and charge controlling chip U1, the circuit for detecting based on charging further include:
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, capacitor C1, first switch tube and second switch；
The high potential of the first switch tube terminates the USB charging interface J1, and the cold end of the first switch tube passes through
Resistance R6 ground connection, the control terminal of the first switch tube meet the enable end EN of the charge controlling chip U1, institute by resistance R1
It states resistance R2 to be connected between the control terminal and ground of the first switch tube, the cold end and resistance R6 of the first switch tube
Public connecting end the output end OUT of the charge controlling chip U1 is met by resistance R5, the capacitor C1 is connected to described fill
Between the output end OUT and ground of electric control chip U1, the resistance R3 and resistance R4 are connected on the USB charging interface J1 and ground
Between, the control of the second switch terminates the public connecting end of the resistance R3 and resistance R4, the second switch
High potential terminates the test side USB_IN of the charge controlling chip U1, the cold end ground connection of the second switch；
The circuit for detecting based on charging further includes charging circuit, and the charging circuit is connect with the USB charging interface J1.
5. charger as claimed in claim 4, which is characterized in that the first switch tube uses metal-oxide-semiconductor Q1, the metal-oxide-semiconductor
The grid of Q1 is the control terminal of the first switch tube, and the drain electrode of the metal-oxide-semiconductor Q1 is the hot end of the first switch tube,
The source electrode of the metal-oxide-semiconductor Q1 is the cold end of the first switch tube.
6. charger as claimed in claim 4, which is characterized in that the second switch uses triode Q2, three pole
The base stage of pipe Q2 is the control terminal of the second switch, the height electricity of the extremely described second switch of the current collection of the triode Q2
Position end, the cold end of the extremely described second switch of transmitting of the triode Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712721.4A CN106253398B (en) | 2016-08-24 | 2016-08-24 | A kind of circuit for detecting and charger based on charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712721.4A CN106253398B (en) | 2016-08-24 | 2016-08-24 | A kind of circuit for detecting and charger based on charging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106253398A CN106253398A (en) | 2016-12-21 |
| CN106253398B true CN106253398B (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610712721.4A Active CN106253398B (en) | 2016-08-24 | 2016-08-24 | A kind of circuit for detecting and charger based on charging |
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| CN (1) | CN106253398B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562826A (en) * | 2018-02-23 | 2018-09-21 | 香港达谊集团有限公司 | battery charger detection circuit |
| CN109828173B (en) * | 2019-03-11 | 2020-08-11 | 江苏紫米软件技术有限公司 | Load detection system and load detection method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203871900U (en) * | 2014-05-30 | 2014-10-08 | 杨军 | Electric energy automatic compensation device for USB electricity-receiving equipment |
| CN204271695U (en) * | 2014-12-05 | 2015-04-15 | 杭州东慧科技有限公司 | A kind of Novel mobile power source |
| CN206041553U (en) * | 2016-08-24 | 2017-03-22 | 深圳市冠旭电子股份有限公司 | Listen circuit and charger based on charge |
-
2016
- 2016-08-24 CN CN201610712721.4A patent/CN106253398B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203871900U (en) * | 2014-05-30 | 2014-10-08 | 杨军 | Electric energy automatic compensation device for USB electricity-receiving equipment |
| CN204271695U (en) * | 2014-12-05 | 2015-04-15 | 杭州东慧科技有限公司 | A kind of Novel mobile power source |
| CN206041553U (en) * | 2016-08-24 | 2017-03-22 | 深圳市冠旭电子股份有限公司 | Listen circuit and charger based on charge |
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| Publication number | Publication date |
|---|---|
| CN106253398A (en) | 2016-12-21 |
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