CN113489101A - Output voltage adjusting device and output voltage adjusting method for mobile phone charger - Google Patents
Output voltage adjusting device and output voltage adjusting method for mobile phone charger Download PDFInfo
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- CN113489101A CN113489101A CN202110784075.3A CN202110784075A CN113489101A CN 113489101 A CN113489101 A CN 113489101A CN 202110784075 A CN202110784075 A CN 202110784075A CN 113489101 A CN113489101 A CN 113489101A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000001413 cellular effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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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
- H02J7/007—Regulation of charging or discharging current or voltage
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to the technical field of mobile phone chargers, and particularly relates to an output voltage regulating device and an output voltage regulating method for a mobile phone charger, wherein the output voltage regulating device for the mobile phone charger comprises: a decoy circuit connected with the output end of the mobile phone charger; wherein the mobile phone charger is suitable for outputting output voltages of at least two voltage levels through the decoy circuit; the invention can realize that the mobile phone charger outputs various voltages by arranging the decoy circuit to be connected with the output end of the mobile phone charger.
Description
Technical Field
The invention belongs to the technical field of mobile phone chargers, and particularly relates to an output voltage adjusting device and an output voltage adjusting method for a mobile phone charger.
Background
The traditional mobile phone charger needs to be provided with a high-cost booster circuit, so that the charger meets the requirements of different direct current power supplies, and the production cost is aggravated.
Therefore, it is desirable to develop a new output voltage regulating device and method for a mobile phone charger to solve the above problems.
Disclosure of Invention
The invention aims to provide an output voltage regulating device and an output voltage regulating method for a mobile phone charger.
In order to solve the above technical problem, the present invention provides an output voltage regulator for a mobile phone charger, comprising: a decoy circuit connected with the output end of the mobile phone charger; wherein the mobile phone charger is suitable for outputting output voltages of at least two voltage levels through the decoy circuit.
In one embodiment, the spoofing circuit comprises: a voltage conversion chip and a change-over switch; the voltage conversion chip is connected with a Vcc line, a D + line, a D-line and a GND line of the output end of the mobile phone charger, the D + line and the D-line are connected with the voltage conversion chip through a change-over switch, namely the D + line and the D-line are switched to be at corresponding voltages through the change-over switch, so that the Vcc line outputs output voltages with different voltage levels.
In one embodiment, the switch is a three-position band switch; when the middle waveband of the switch is at the upper end position, the Vcc line outputs 9V output voltage; when the waveband in the changeover switch is in the middle position, the Vcc line outputs 5V of output voltage; when the middle band of the switch is at the lower end position, the Vcc line outputs 12V of output voltage.
In one embodiment, when the band is at the upper end position in the switch, the D + line is at 3.3V, D-line is at 0.6V; when the waveband in the switch is in the middle position, the D + line is at 0.6V, D-line is at 0V; when the mid-band of the switch is in the lower end position, the D + line is at 0.6V, D-line is at 0.6V.
In one embodiment, a voltage stabilizing resistor is connected between the voltage conversion chip and the Vcc line.
In one embodiment, the resistance value of the voltage stabilizing resistor is 2000 ohms.
In one embodiment, the voltage conversion chip is connected with a GND line through a diode; the positive terminal of the diode faces the voltage conversion chip, and the negative terminal of the diode faces the GND line.
In another aspect, the present invention provides a method for adjusting an output voltage of a mobile phone charger, including: the handset charger outputs output voltages of at least two voltage levels through the decoy circuit.
In one embodiment, the Vcc line outputs output voltages with different voltage levels by switching the D + line and the D-line of the output end of the mobile phone charger to be at corresponding voltages.
In one embodiment, the output voltage regulating device for the mobile phone charger is suitable for enabling the mobile phone charger to output voltages with different voltage levels.
The invention has the beneficial effects that the deceptive circuit is arranged to be connected with the output end of the mobile phone charger, so that the mobile phone charger can output various voltages.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a circuit diagram of an output voltage regulating device for a mobile phone charger of the present invention;
fig. 2 is a structural diagram of an output voltage adjusting apparatus for a mobile phone charger of the present invention.
In the figure:
a voltage conversion chip 1 and a change-over switch 2;
the voltage conversion circuit comprises a voltage conversion chip U1, a switch SW1, a voltage stabilizing resistor R1 and a diode D1.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Fig. 1 is a circuit diagram of an output voltage regulating device for a mobile phone charger of the present invention.
In this embodiment, as shown in fig. 1, the present embodiment provides an output voltage regulating device for a mobile phone charger, which includes: a decoy circuit connected with the output end of the mobile phone charger; wherein the mobile phone charger is suitable for outputting output voltages of at least two voltage levels through the decoy circuit.
In this embodiment, the spoofing circuit is connected to the output terminal of the mobile phone charger, so that the mobile phone charger can output various voltages.
Fig. 2 is a structural diagram of an output voltage adjusting apparatus for a mobile phone charger of the present invention.
In this embodiment, as shown in fig. 1 and 2, the spoofing circuit includes: a voltage conversion chip U1 and a switch SW 1; the voltage conversion chip U1 is connected with a Vcc line, a D + line, a D-line and a GND line of the output end of the mobile phone charger, and the D + line and the D-line are connected with the voltage conversion chip U1 through a change-over switch SW1, namely, the D + line and the D-line are switched to be at corresponding voltages through the change-over switch SW1, so that the Vcc line outputs output voltages with different voltage levels.
In the present embodiment, as shown in fig. 2, the voltage conversion chip 1 is connected to the changeover switch 2.
In this embodiment, the voltage conversion chip U1 may be, but is not limited to, a TL431 type voltage conversion IC.
In the present embodiment, the switch SW1 is a three-position band switch; when the waveband in the switch SW1 is at the upper end position, the Vcc line outputs 9V of output voltage; when the waveband in the switch SW1 is in the middle position, the Vcc line outputs 5V of output voltage; when the band in the changeover switch SW1 is at the lower end position, the Vcc line outputs an output voltage of 12V.
In this embodiment, the voltage conversion chip U1 and the switch SW1 enable the mobile phone charger (also called a power adapter) to output 3 different dc voltages in a tricky manner as required, and a high-cost boost circuit does not need to be purchased additionally, so that the requirement that one mobile phone charger can meet different dc power supplies is met, and the mobile phone charger has the advantage of low cost.
In the embodiment, the Vcc line outputs three voltages of 5V, 9V and 12V through the spoofing circuit, and can provide a required direct current power supply for the mobile phone charger to perform semiconductor refrigeration, fan refrigeration and the like.
In the present embodiment, when the wavelength band is at the upper end position in the switch SW1, the D + line is at 3.3V, D-line is at 0.6V; when the band is at the middle position in the switch SW1, the D + line is at 0.6V, D-line is at 0V; when the band is at the lower end position in the switch SW1, the D + line is at 0.6V, D-line at 0.6V.
In this embodiment, a voltage regulator resistor R1 is connected between the voltage conversion chip U1 and the Vcc line, and functions to stabilize the Vcc line for output.
In this embodiment, the resistance of the voltage regulator resistor R1 is 2000 ohms.
In the present embodiment, the voltage conversion chip U1 is connected to the GND line through a diode D1; the positive terminal of the diode D1 faces the voltage conversion chip U1, and the negative terminal of the diode D1 faces the GND line, thereby preventing ground leakage.
In the present embodiment, the diode D1 may be, but is not limited to, a 1N4148 type diode.
Example 2
On the basis of embodiment 1, the present embodiment provides a method for adjusting an output voltage of a mobile phone charger, including: the handset charger outputs output voltages of at least two voltage levels through the decoy circuit.
In the embodiment, the D + line and the D-line of the output end of the mobile phone charger are switched to be at corresponding voltages, so that the Vcc line outputs output voltages with different voltage levels.
In this embodiment, it is suitable to use the output voltage adjusting apparatus for a mobile phone charger as provided in embodiment 1 to make the mobile phone charger output voltages of different voltage levels.
In the present embodiment, the output voltage adjusting apparatus for a mobile phone charger has been explained in embodiment 1.
In summary, the invention can realize that the mobile phone charger outputs various voltages by arranging the decoy circuit to be connected with the output end of the mobile phone charger.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An output voltage regulator for a mobile phone charger, comprising:
a decoy circuit connected with the output end of the mobile phone charger; wherein
The mobile phone charger is suitable for outputting output voltages of at least two voltage levels through the decoy circuit.
2. The output voltage regulator for a charger for cellular phones according to claim 1,
the spoofing circuit includes: a voltage conversion chip and a change-over switch;
the voltage conversion chip is connected with a Vcc line, a D + line, a D-line and a GND line of the output end of the mobile phone charger, and the D + line and the D-line are connected with the voltage conversion chip through a change-over switch, namely
And the D + line and the D-line are switched to be at corresponding voltages through the selector switch, so that the Vcc line outputs output voltages with different voltage levels.
3. The output voltage regulator for a charger for cellular phones according to claim 2,
the change-over switch is a three-position waveband switch;
when the middle waveband of the switch is at the upper end position, the Vcc line outputs 9V output voltage;
when the waveband in the changeover switch is in the middle position, the Vcc line outputs 5V of output voltage;
when the middle band of the switch is at the lower end position, the Vcc line outputs 12V of output voltage.
4. The output voltage regulator for handset charger of claim 3,
when the middle waveband of the switch is at the upper end position, the D + line is at 3.3V, D-line is at 0.6V;
when the waveband in the switch is in the middle position, the D + line is at 0.6V, D-line is at 0V;
when the mid-band of the switch is in the lower end position, the D + line is at 0.6V, D-line is at 0.6V.
5. The output voltage regulator for a charger for cellular phones according to claim 2,
and a voltage stabilizing resistor is connected between the voltage conversion chip and the Vcc line.
6. The output voltage regulator for handset charger of claim 5,
the resistance value of the voltage stabilizing resistor is 2000 ohms.
7. The output voltage regulator for a charger for cellular phones according to claim 2,
the voltage conversion chip is connected with a GND line through a diode;
the positive terminal of the diode faces the voltage conversion chip, and the negative terminal of the diode faces the GND line.
8. A method for adjusting output voltage of a mobile phone charger is characterized by comprising the following steps:
the handset charger outputs output voltages of at least two voltage levels through the decoy circuit.
9. The method of claim 8, wherein the mobile phone charger further comprises a step of adjusting the output voltage of the mobile phone charger,
the D + line and the D-line of the output end of the mobile phone charger are switched to be at corresponding voltages, so that the Vcc line outputs output voltages of different voltage levels.
10. The method of claim 8, wherein the mobile phone charger further comprises a step of adjusting the output voltage of the mobile phone charger,
an output voltage regulating device for a mobile phone charger adapted to cause the mobile phone charger to output an output voltage of different voltage levels using any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784075.3A CN113489101A (en) | 2021-07-12 | 2021-07-12 | Output voltage adjusting device and output voltage adjusting method for mobile phone charger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784075.3A CN113489101A (en) | 2021-07-12 | 2021-07-12 | Output voltage adjusting device and output voltage adjusting method for mobile phone charger |
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| CN113489101A true CN113489101A (en) | 2021-10-08 |
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| CN202110784075.3A Pending CN113489101A (en) | 2021-07-12 | 2021-07-12 | Output voltage adjusting device and output voltage adjusting method for mobile phone charger |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204243812U (en) * | 2014-11-05 | 2015-04-01 | 王映霞 | The quick charge device of mobile device battery |
| CN206060275U (en) * | 2016-08-30 | 2017-03-29 | 常州银河世纪微电子股份有限公司 | For testing the control circuit of fast charger |
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2021
- 2021-07-12 CN CN202110784075.3A patent/CN113489101A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204243812U (en) * | 2014-11-05 | 2015-04-01 | 王映霞 | The quick charge device of mobile device battery |
| CN206060275U (en) * | 2016-08-30 | 2017-03-29 | 常州银河世纪微电子股份有限公司 | For testing the control circuit of fast charger |
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