CN109698537B - Charging circuit, charging detection method and device - Google Patents
Charging circuit, charging detection method and device Download PDFInfo
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- CN109698537B CN109698537B CN201910098166.4A CN201910098166A CN109698537B CN 109698537 B CN109698537 B CN 109698537B CN 201910098166 A CN201910098166 A CN 201910098166A CN 109698537 B CN109698537 B CN 109698537B
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
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- Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention relates to the technical field of charging, in particular to a charging circuit, a charging detection method and a charging detection device. The charging circuit includes: a main controller; an input voltage detection circuit connected to the main controller; the input voltage switch circuit is respectively connected with the main controller and the input voltage detection circuit; the adjusting circuit is respectively connected with the input voltage switching circuit and the main controller; when the charging circuit is connected with the charging adapter, the main controller judges whether the first input voltage value meets a preset charging voltage requirement, if so, the main controller controls the input voltage switch circuit to be conducted and outputs a charging control signal to the adjusting circuit, the duty ratio of the charging control signal is 100%, a second input voltage value input into the charging circuit is obtained, whether the first input voltage value is consistent with the second input voltage value is judged, and if so, the charging adapter is determined to be unmatched. From this, charging circuit can detect the adapter that charges and whether mismatch, has promoted the charging safety of product.
Description
Technical Field
The embodiment of the invention relates to the technical field of charging, in particular to a charging circuit, a charging detection method and a charging detection device.
Background
As the standard of living increases, more portable products are needed to meet the needs of daily life, and more battery-powered products, such as electric toothbrushes, electric shavers, portable beauty products, portable physiotherapy products, mobile phones, etc., are needed, which are related to the requirements of batteries and charging adapters. However, the charging requirements of each product are different, so that the charger needs to be identified for charging.
At present, the charging identification method for the charger mainly includes the following two methods: the first mode is as follows: the output voltage and current, namely power, are directly marked on a matched charger, and an adapter required by charging is described on a product specification and is configured and sold together with a product. The second mode is as follows: and a special power interface is customized to prevent adapters of other brands from being plugged in for use.
In the process of implementing the invention, the inventor of the invention finds the following problems in the prior art: in the first mode of the prior art, due to the generalization of the interface, some users can directly insert any charger with the same interface for charging, and usually each product has a matching adapter suitable for the charging requirement of the product, so that if the power adapter is not suitable for the charging requirement of the current product, the safety problem of the product can be caused; in the second method of the prior art, if a customized power interface is used, the cost is greatly increased, and even if the customized power interface is used, a unique interface is not necessarily guaranteed, or different adapters may be used for charging, which may cause a potential safety hazard.
Disclosure of Invention
The technical problem mainly solved by the embodiment of the invention is to provide a charging circuit, a charging detection method and a charging detection device, aiming at solving the safety problem caused by the fact that whether an adapter is matched or not cannot be detected in the prior art.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention adopts a technical solution that: provided is a charging circuit including:
a main controller;
an input voltage detection circuit connected to the main controller;
an input voltage switching circuit connected to the main controller and the input voltage detection circuit, respectively;
an adjustment circuit connected to the input voltage switching circuit and the main controller, respectively;
a charging voltage detection circuit connected to the adjustment circuit and the main controller, respectively;
a charging current detection circuit connected to the adjustment circuit, the main controller, and the charging voltage detection circuit, respectively;
when the charging circuit is connected with the charging adapter, the main controller is used for acquiring input of a first input voltage value of the charging circuit through the input voltage detection circuit, judging whether the first input voltage value meets a preset charging voltage requirement, and when the first input voltage value meets the preset charging voltage requirement, controlling the input voltage switch circuit to be switched on and outputting a charging control signal to the adjusting circuit, wherein the control signal is a signal with a duty ratio of 100%, and the main controller is further used for acquiring input of a second input voltage value of the charging circuit when outputting the charging control signal to the adjusting circuit, judging whether the first input voltage value is consistent with the second input voltage value, and if so, determining that the charging adapter is not matched.
Optionally, the controller is further configured to determine whether the second input voltage value is less than or equal to 80% of the first input voltage value when the charging control signal is output to the adjusting circuit, and if so, determine that the charging adapter is matched.
Optionally, the charging circuit further includes a charging input interface, which is connected to the input voltage detection circuit, and the charging input interface is used for being connected to the charging adapter.
Optionally, the charging circuit further includes a power supply circuit, which is respectively connected to the input voltage detection circuit and the main controller, and the power supply circuit is configured to supply power to the main controller.
Optionally, the controller is further configured to control the input voltage switching circuit to turn off when the input voltage value does not meet a preset charging voltage requirement.
In order to solve the above technical problem, according to a second aspect of the present invention, another technical solution is: the charging detection method applied to the charging circuit comprises the following steps:
when the charging circuit is connected with a charging adapter, a first input voltage value input into the charging circuit is acquired;
judging whether the first input voltage value meets a preset charging voltage requirement or not;
if the first input voltage value meets the preset charging voltage requirement, controlling an input voltage switch circuit in the charging circuit to be switched on, and outputting a charging control signal to an adjusting circuit in the charging circuit, wherein the charging control signal is a signal with a duty ratio of 100%;
acquiring a second input voltage value input into the charging circuit;
and judging whether the first input voltage value is consistent with the second input voltage value, and if so, determining that the charging adapter is not matched.
Optionally, the method further includes:
when the charging control signal is output to the adjusting circuit, whether the second input voltage value is smaller than or equal to 80% of the first input voltage value or not is judged, and if yes, the charging adapter is determined to be matched.
Optionally, the method further includes:
and when the first input voltage value does not meet the preset charging voltage requirement, controlling the input voltage switch circuit to be switched off.
In order to solve the above technical problem, another technical solution adopted by the embodiments of the present invention is: there is provided a charge detection device applied to the charging circuit as described above, characterized by comprising:
the charging circuit comprises a first judgment module, a second judgment module and a charging adapter, wherein the first judgment module is used for acquiring a first input voltage value input into the charging circuit when the charging circuit is connected with the charging adapter and judging whether the first input voltage value meets a preset charging voltage requirement or not;
the first control module is used for controlling an input voltage switch circuit in the charging circuit to be switched on and outputting a charging control signal to an adjusting circuit in the charging circuit if the first input voltage value meets a preset charging voltage requirement, wherein the charging control signal is a signal with a duty ratio of 100%, and a second input voltage value input into the charging circuit is obtained.
And the second judging module is used for judging whether the first input voltage value is consistent with the second input voltage value or not, and if so, determining that the charging adapter is not matched.
Optionally, the apparatus further comprises:
the third judging module is used for judging whether the second input voltage value is less than or equal to 80% of the first input voltage value or not, and if so, the charging adapter is determined to be matched;
and the second control module is used for controlling the input voltage switch circuit to be switched off when the first input voltage value does not meet the preset charging voltage requirement.
The beneficial effects of the embodiment of the invention are as follows: in an embodiment of the present invention, a charging circuit includes: a main controller; an input voltage detection circuit connected to the main controller; an input voltage switching circuit connected to the main controller and the input voltage detection circuit, respectively; an adjustment circuit connected to the input voltage switching circuit and the main controller, respectively; a charging voltage detection circuit connected to the adjustment circuit and the main controller, respectively; a charging current detection circuit connected to the adjustment circuit, the main controller, and the charging voltage detection circuit, respectively; when the charging circuit is connected with the charging adapter, the main controller is used for acquiring input of a first input voltage value of the charging circuit through the input voltage detection circuit, judging whether the first input voltage value meets a preset charging voltage requirement, when the first input voltage value meets the preset charging voltage requirement, the main controller controls the input voltage switch circuit to be switched on and outputs a charging control signal to the adjusting circuit, the charging control signal is a signal with a duty ratio at least being 100%, and when the main controller outputs the charging control signal to the adjusting circuit, the main controller is also used for acquiring input of a second input voltage value of the charging circuit, judging whether the first input voltage value is consistent with the second input voltage value, and if so, determining that the charging adapter is not matched. Therefore, the charging circuit can detect whether the charging adapter is not matched, and the charging safety of the product is improved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a charging circuit according to a first embodiment of the present invention;
fig. 2 is a schematic flow chart of a charging detection method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a charge detection device according to a third embodiment of the present invention.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Implementation mode one
Referring to fig. 1, fig. 1 is a schematic structural diagram of a charging circuit according to an embodiment of the present invention, where the charging circuit 100 includes: the main controller 10, the input voltage detection circuit 20, the input voltage switching circuit 30, the adjustment circuit 40, the charging voltage detection circuit 50, the charging current detection circuit 60, the charging input interface 70, and the power supply circuit 80. Wherein, the input voltage detection circuit 20 is connected with the main controller 10; the input voltage switching circuit 30 is connected to the main controller 10 and the input voltage detection circuit 20, respectively; the adjusting circuit 40 is respectively connected with the input voltage switching circuit 30 and the main controller 10; the charging voltage detection circuit 40 is respectively connected with the adjusting circuit 40 and the main controller 10; the charging current detection circuit 60 is connected to the adjustment circuit 40, the main controller 10, and the charging voltage detection circuit 50, respectively.
The charging input interface 70 is used for connecting with a charging adapter, that is, the charging input interface 70 is used for connecting with an external power supply.
The input voltage detection circuit 20 is configured to detect an input voltage value input to the charging circuit 100 and a voltage value at a 100% duty cycle of the charging control signal when the charging input interface 70 is connected to the charging adapter, and feed back the input voltage value to the main controller 10. The charging voltage detection circuit 50 is used for detecting the battery voltage value of the output charging circuit 100, and the charging current detection circuit 60 is used for detecting the output current value of the output charging circuit 100. In the embodiment of the present invention, the input voltage detection circuit 20, the charging voltage detection circuit 50, and the charging current detection circuit 60 may adopt any circuit configuration, such as a hall sensor, a voltage or current detection circuit composed of a resistor network, a voltage or current detection circuit composed of a MOS transistor combined with a resistor, and the like.
The main controller 10 may control the input voltage switching circuit 30 to be turned on or off, thereby establishing or turning off the connection of the adjusting circuit 40 with the external power source; the main controller 10 can adjust the output voltage value and the output current value of the charging circuit 100 through the adjusting circuit 40, specifically, the main controller 10 serves as a control core, and outputs a PWM (Pulse Width Modulation) control signal to the adjusting circuit 40, and the main controller 10 can send charging control signals with different duty ratios to the adjusting circuit 40, so as to output different output voltage values and output current values, and optionally, the main controller 10 is a single chip microcomputer.
The power supply circuit 80 is connected to the main controller 10 and the input voltage detection circuit 20, respectively, and when the charging input interface 70 is connected to the charging adapter, the external power supply supplies power to the main controller 10 through the power supply circuit 80, and the main controller 10 can start to operate.
Specifically, in the embodiment of the present invention, when the charging circuit 100 is connected to the charging adapter, the main controller 10 is configured to obtain a first input voltage value input to the charging circuit 100 through the input voltage detection circuit 20, the main controller 10 further determines whether the first input voltage value meets a preset charging voltage requirement, the preset charging voltage requirement may be customized by a user or preset by a factory, when the first input voltage value meets the preset charging voltage requirement, the main controller controls the input voltage switch circuit 30 to be turned on and outputs a charging control signal to the adjustment circuit 40, and when the input voltage value does not meet the preset charging voltage requirement, the main controller controls the input voltage switch circuit 30 to be turned off and outputs the charging control signal to the adjustment circuit 40, the charging control signal output by the main controller 10 to the adjustment circuit 40 is a signal with a duty ratio of 100%, in the prior art, the loading capacity of a charging circuit is assumed to be 500mA, the charging requirement standard of a product is 500mA, 2A can be allowed to the maximum, if a large-capacity charger is input, the loading capacity is far over 500mA, namely when the short time (100mS) reaches 1A, when the load is far over the loading capacity, namely when a charging control signal is a signal with a duty ratio of 100%, the input voltage can be reduced, if the current is over 500mA times the set charging current, the voltage drop can be detected, the current qualified charger can be confirmed, and otherwise, the current charger requirement is not met. Therefore, the main controller 10 is further configured to obtain a second input voltage value input to the charging circuit 100 when outputting the charging control signal to the adjusting circuit 40, determine whether the first input voltage value and the second input voltage value are consistent, determine that the charging adapter is not matched if the first input voltage value and the second input voltage value are consistent, and control the input voltage switching circuit 30 to turn off if the first input voltage value and the second input voltage value are consistent, and further determine that the charging adapter is matched if the second input voltage value is less than or equal to 80% of the first input voltage value if the second input voltage value and the first input voltage value are consistent.
Thus, in an embodiment of the present invention, the charging circuit 100 includes: a main controller 10; an input voltage detection circuit 20 connected to the main controller 10; an input voltage switching circuit 30 connected to the main controller 10 and the input voltage detection circuit 20, respectively; an adjustment circuit 40 connected to the input voltage switching circuit 30 and the main controller 10, respectively; a battery voltage detection circuit 50 connected to the adjustment circuit 40 and the main controller 10, respectively; a charging current detection circuit 60 connected to the adjustment circuit 40, the main controller 10, and the battery voltage detection circuit 50; when the charging circuit 100 is connected to the charging adapter, the main controller 10 is configured to obtain a first input voltage value input to the charging circuit 100 through the input voltage detection circuit 20, and then determine whether the first input voltage value meets a preset charging voltage requirement, and when the first input voltage value meets the preset charging voltage requirement, control the input voltage switch circuit 30 to be turned on, and output a charging control signal to the adjustment circuit 40, where the charging control signal is a signal with a duty ratio of 100%, and when the main controller 10 outputs the charging control signal to the adjustment circuit 40, obtain a second input voltage value input to the charging circuit 100, determine whether the first input voltage value and the second input voltage value are consistent, and if so, determine that the charging adapter is not matched. From this, charging circuit 100 can discern the charging adapter of access, can detect whether the charging adapter matches, has promoted the charging safety of product.
Second embodiment
Referring to fig. 2, fig. 2 is a schematic flow chart of a charging detection method according to a second embodiment of the present invention, which is applied to the charging circuit described above, and the method includes:
step 201: when a charging circuit is connected with a charging adapter, acquiring a first input voltage value input into the charging circuit, and judging whether the first input voltage value meets a preset charging voltage requirement or not;
when the charging circuit is connected with the charging adapter, the first input voltage value is acquired, the acquired first input voltage value is compared with a preset charging voltage requirement, and the preset charging voltage requirement is predefined by a user or preset by factory settings.
Step 202: and if the first input voltage value meets the preset charging voltage requirement, controlling an input voltage switch circuit in the charging circuit to be switched on, and outputting a charging control signal to an adjusting circuit in the charging circuit, wherein the charging control signal is a signal with a duty ratio of 100%, and acquiring a second input voltage value input into the charging circuit.
Step 203: judging whether the first input voltage value is consistent with the second input voltage value;
step 204: if so, the charging adapter is determined not to match.
Step 205: if not, judging whether the second input voltage value is less than or equal to 80% of the first input voltage value;
step 206: and if the input voltage value is detected to be reduced by at least 20%, determining that the charging adapter is matched.
Step 207 (not shown): and when the first input voltage value does not meet the preset charging voltage requirement, controlling the input voltage switch circuit to be switched off.
In an embodiment of the present invention, a charge detection method includes: when a charging circuit is connected with a charging adapter, acquiring a first input voltage value input into the charging circuit, and judging whether the first input voltage value meets a preset charging voltage requirement or not; if the first input voltage value meets the preset charging voltage requirement, controlling an input voltage switch circuit in the charging circuit to be conducted, and outputting a charging control signal to an adjusting circuit in the charging circuit, wherein the charging control signal is a signal with a duty ratio of 100%, acquiring a second input voltage value input into the charging circuit, judging whether the first input voltage value is consistent with the second input voltage value, and if so, determining that the charging adapter is not matched; if not, judging whether the second input voltage value is less than or equal to 80% of the first input voltage value, and if so, determining that the charging adapters are matched; and when the input voltage value does not meet the preset charging voltage requirement, controlling the input voltage switching circuit to be switched off. From this, charging circuit can detect the adapter that charges and whether mismatch, has promoted the charging safety of product.
Third embodiment
Referring to fig. 3, fig. 3 is a schematic structural diagram of a charging detection apparatus according to a third embodiment of the present invention, which is applied to the charging circuit described above, and the apparatus 300 includes: a first judging module 301, a first control module 302, a second judging module 303, a third judging module 304 and a second control module 305.
The first judging module 301 is configured to, when the charging circuit is connected to the charging adapter, obtain a first input voltage value input to the charging circuit, and judge whether the first input voltage value meets a preset charging voltage requirement;
when the charging circuit is connected with the charging adapter, the input voltage value is acquired, the acquired input voltage value is compared with a preset charging voltage requirement, and the preset charging voltage requirement is predefined by a user or preset by factory settings.
The first control module 302 is configured to control an input voltage switch circuit in the charging circuit to be turned on and output a charging control signal to an adjusting circuit in the charging circuit if the first input voltage value meets a preset charging voltage requirement, where the charging control signal is a signal with a duty ratio of 100%, and obtain a second input voltage value input to the charging circuit.
The second determining module 303 is configured to determine whether the first input voltage value and the second input voltage value are consistent, and if so, determine that the charging adapter is not matched.
The third determining module 304 is configured to determine whether the second input voltage value is less than or equal to 80% of the first input voltage value, and if so, determine that the charging adapter is matched.
The second control module 305 is configured to control the input voltage switch circuit to turn off when the first input voltage value does not meet the preset charging voltage requirement.
In the embodiment of the invention, the charging detection device can acquire a first input voltage value input into the charging circuit when the charging circuit is connected with the charging adapter, and judge whether the first input voltage value meets a preset charging voltage requirement; if the first input voltage value meets the preset charging voltage requirement, controlling an input voltage switch circuit in the charging circuit to be conducted, and outputting a charging control signal to an adjusting circuit in the charging circuit, wherein the charging control signal is a signal with a duty ratio of 100%, acquiring a second input voltage value input into the charging circuit, judging whether the first input voltage value is consistent with the second input voltage value, and if so, determining that the charging adapter is not matched; if not, judging whether the second input voltage value is less than or equal to 80% of the first input voltage value, and if so, determining that the charging adapters are matched; and when the input voltage value does not meet the preset charging voltage requirement, controlling the input voltage switching circuit to be switched off. From this, charging circuit can detect the adapter that charges and whether mismatch, has promoted the charging safety of product.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A charging circuit, comprising:
a main controller;
an input voltage detection circuit connected to the main controller;
an input voltage switching circuit connected to the main controller and the input voltage detection circuit, respectively;
an adjustment circuit connected to the input voltage switching circuit and the main controller, respectively;
a charging voltage detection circuit connected to the adjustment circuit and the main controller, respectively;
a charging current detection circuit connected to the adjustment circuit, the main controller, and the charging voltage detection circuit, respectively;
the charging input interface is connected with the input voltage detection circuit and is used for being connected with a charging adapter;
the power supply circuit is respectively connected with the input voltage detection circuit and the main controller, and is used for supplying power to the main controller;
wherein, when the charging circuit is connected with the charging adapter, the main controller is used for obtaining a first input voltage value input into the charging circuit through the input voltage detection circuit, then judging whether the first input voltage value meets a preset charging voltage requirement, when the first input voltage value meets the preset charging voltage requirement, the main controller controls the input voltage switch circuit to be conducted, and outputs charging control signals with different duty ratios to the adjusting circuit so as to realize the output of different output voltage values and output current values, and when the charging control signals are output to the adjusting circuit and the duty ratio is a signal of 100%, the main controller is also used for obtaining a second input voltage value input into the charging circuit, and judging whether the first input voltage value is consistent with the second input voltage value, if so, determining that the charging adapter does not match;
the main controller is further used for judging whether the second input voltage value is smaller than or equal to 80% of the first input voltage value when the charging control signal is output to the adjusting circuit, and if so, the charging adapter is determined to be matched;
and the main controller is also used for controlling the input voltage switch circuit to be switched off when the first input voltage value does not meet the preset charging voltage requirement.
2. A charge detection method applied to the charging circuit according to claim 1, comprising:
when the charging circuit is connected with a charging adapter, acquiring a first input voltage value input into the charging circuit, and judging whether the first input voltage value meets a preset charging voltage requirement or not;
if the first input voltage value meets the preset charging voltage requirement, controlling an input voltage switch circuit in the charging circuit to be switched on, and outputting charging control signals with different duty ratios to an adjusting circuit in the charging circuit so as to realize the output of different output voltage values and output current values, wherein the charging control signals are signals with the duty ratios of 100%, and acquiring a second input voltage value input into the charging circuit;
and judging whether the first input voltage value is consistent with the second input voltage value, and if so, determining that the charging adapter is not matched.
3. The method of claim 2, further comprising:
and judging whether the second input voltage value is less than or equal to 80% of the first input voltage value, and if so, determining that the charging adapter is matched.
4. The method of claim 2, further comprising:
and when the first input voltage value does not meet the preset charging voltage requirement, controlling the input voltage switch circuit to be switched off.
5. A charge detection device applied to the charging circuit according to claim 1, comprising:
the charging circuit comprises a first judgment module, a second judgment module and a charging adapter, wherein the first judgment module is used for acquiring a first input voltage value input into the charging circuit when the charging circuit is connected with the charging adapter and judging whether the first input voltage value meets a preset charging voltage requirement or not;
the first control module is used for controlling an input voltage switch circuit in the charging circuit to be switched on and outputting charging control signals with different duty ratios to an adjusting circuit in the charging circuit to realize the output of different output voltage values and output current values if the first input voltage value meets the preset charging voltage requirement, wherein the charging control signals are signals with the duty ratios of 100%, and a second input voltage value input into the charging circuit is obtained;
the second judging module is used for judging whether the first input voltage value is consistent with the second input voltage value or not, and if so, the charging adapter is determined not to be matched;
the third judging module is used for judging whether the second input voltage value is less than or equal to 80% of the first input voltage value or not, and if so, the charging adapter is determined to be matched;
and the second control module is used for controlling the input voltage switch circuit to be switched off when the first input voltage value does not meet the preset charging voltage requirement.
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| CN201910098166.4A CN109698537B (en) | 2019-01-31 | 2019-01-31 | Charging circuit, charging detection method and device |
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| CN201910098166.4A CN109698537B (en) | 2019-01-31 | 2019-01-31 | Charging circuit, charging detection method and device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624950A (en) * | 2012-03-01 | 2012-08-01 | 惠州Tcl移动通信有限公司 | Mobile phone and method for detecting condition of charger of mobile phone |
| CN104965139A (en) * | 2015-06-26 | 2015-10-07 | 广东欧珀移动通信有限公司 | Method and terminal for intelligently detecting adapter performance |
| CN105990879A (en) * | 2016-07-06 | 2016-10-05 | 歌尔股份有限公司 | Device for battery charging and electronic device |
| CN106160033A (en) * | 2015-03-27 | 2016-11-23 | 青岛海信移动通信技术股份有限公司 | A kind for the treatment of method and apparatus of terminal charger |
| US9866229B2 (en) * | 2015-08-13 | 2018-01-09 | Asustek Computer Inc. | Power adapter and control method thereof |
-
2019
- 2019-01-31 CN CN201910098166.4A patent/CN109698537B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624950A (en) * | 2012-03-01 | 2012-08-01 | 惠州Tcl移动通信有限公司 | Mobile phone and method for detecting condition of charger of mobile phone |
| CN106160033A (en) * | 2015-03-27 | 2016-11-23 | 青岛海信移动通信技术股份有限公司 | A kind for the treatment of method and apparatus of terminal charger |
| CN104965139A (en) * | 2015-06-26 | 2015-10-07 | 广东欧珀移动通信有限公司 | Method and terminal for intelligently detecting adapter performance |
| US9866229B2 (en) * | 2015-08-13 | 2018-01-09 | Asustek Computer Inc. | Power adapter and control method thereof |
| CN105990879A (en) * | 2016-07-06 | 2016-10-05 | 歌尔股份有限公司 | Device for battery charging and electronic device |
Non-Patent Citations (1)
| Title |
|---|
| 智能机顶盒电源适配器性能检测仪制作与使用;刘敬英;《中国有线电视》;20180228(第2期);第195-196页 * |
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