CN210806814U - Charging circuit capable of self-adapting to charging voltage - Google Patents
Charging circuit capable of self-adapting to charging voltage Download PDFInfo
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- CN210806814U CN210806814U CN201922238896.8U CN201922238896U CN210806814U CN 210806814 U CN210806814 U CN 210806814U CN 201922238896 U CN201922238896 U CN 201922238896U CN 210806814 U CN210806814 U CN 210806814U
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Abstract
The utility model relates to the technical field of charging circuits, in particular to a charging circuit of self-adaptive charging voltage, which comprises a charging circuit part, wherein a chip U9017 is arranged in the charging circuit part, and the chip U9017 is used for correspondingly charging the charging circuit part according to the voltage output type supported by a charger; and the USB signal switch switching circuit part is connected with the charging circuit part and used for switching signal channels. The utility model discloses can carry out quick charge for electronic equipment, input that can self-adaptation charging voltage to be applicable to various chargers.
Description
Technical Field
The utility model relates to a charging circuit technical field especially relates to a charging circuit of self-adaptation charging voltage.
Background
At present, along with the popularization of electronic equipment, the charging requirement on the electronic equipment is higher and higher, in order to meet the requirement of a user, the use occasion of the electronic equipment requires quick charging and supports high-voltage input, for example, an electronic notebook, and in order to meet the requirement of quick charging time, a charging circuit is required to support the input of self-adaptive charging voltage.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a charging circuit with adaptive charging voltage.
In order to solve the technical problem, the technical scheme of the utility model is that:
a charging circuit with self-adaptive charging voltage is disclosed,
the charger comprises a charging circuit part, wherein a chip U9017 is arranged in the charging circuit part, and the chip U9017 is used for correspondingly charging the charging circuit part according to the voltage output type supported by the charger;
and the USB signal switch switching circuit part is connected with the charging circuit part and used for switching signal channels.
Preferably, the charging circuit part comprises a chip U9017, a capacitor C9024, a capacitor C9033, a capacitor C9012, a capacitor C9016, a capacitor C9014, a capacitor C9026, a capacitor C9019, a resistor R9121, a resistor R9031, a resistor R9032, a resistor R9021, a resistor R9022 and an inductor L9012; the No. 1 pin of the chip U9017 is connected with an input signal VUBS _ TYPEC of a charger and is connected with one end of a capacitor C9024, and the other pin of the capacitor C9024 is connected with the ground;
one pin of the capacitor C9012 is connected with a pin 21 of the chip U9017, the other pin of the capacitor C9012 is connected to pins 19 and 20 of the U9017 and one end of the inductor L9012, and the other pin of the inductor L9012 is connected to a common signal VBAT of the capacitor C9014 and the capacitor C9026 to supply power to a system;
one end of the capacitor C9016 is connected with the No. 22 of the chip U9017, and the other end of the capacitor C9016 is connected to the ground;
the capacitor C9033 is connected to a No. 23 pin of the chip U9017, and the other end of the capacitor C9033 is grounded;
one pin of the resistor R9121 is connected with a pin 24 of the chip U9017, the other end of the resistor R9121 is connected to VBAT, one end of the resistor R9031 is connected to a pin 8 of the chip U9017, and the other pin is connected with VBAT;
one end of the resistor R9032 is connected to a No. 10 pin of the chip U9017, and the other pin of the resistor R9032 is connected with the ground;
one end of the resistor R9012 is connected with a No. 11 pin of the chip U9017, and the other end of the resistor R9012 is connected with the ground;
one end of the resistor R9022 is connected with a No. 12 pin of the chip U9017, and the other end of the resistor R9022 is connected with the ground.
Preferably, the USB signal switch switching circuit portion includes a chip U6802, a capacitor C6810, and a resistor R6803, wherein one end of the capacitor C6810 is connected to pin No. 9 of the chip U6802, and the other end is connected to ground; resistor R6803 has one end connected to pin 10 of U6802 and the other end connected to the DSEL signal.
To sum up, compare prior art, the utility model has the advantages of:
the utility model discloses can carry out quick charge for electronic equipment, input that can self-adaptation charging voltage to be applicable to various chargers.
Drawings
FIG. 1 is a circuit diagram of a charging circuit portion;
FIG. 2 is a circuit diagram of a portion of a USB signal switch switching circuit.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
Example (b):
referring to fig. 1, the present embodiment provides a charging circuit for adaptive charging voltage,
the charger comprises a charging circuit part, a chip U9017 is arranged in the charging circuit part, and the chip U9017 is used for enabling the charging circuit part to perform corresponding charging according to the voltage output type supported by the charger, in other words, when the charger supports high-voltage output charging, the charging circuit part performs high-voltage charging, and when the charger only supports low-voltage output charging, the charging circuit part performs low-voltage charging;
the charging circuit also comprises a USB signal switch switching circuit part which is connected with the charging circuit part and used for switching signal channels; the electronic device may be an electronic product such as an electronic notebook, and is not limited herein.
Specifically, as shown in fig. 1, the charging circuit portion includes a chip U9017, a capacitor C9024, a capacitor C9033, a capacitor C9012, a capacitor C9016, a capacitor C9014, a capacitor C9026, a capacitor C9019, a resistor R9121, a resistor R9031, a resistor R9032, a resistor R9021, a resistor R9022, and an inductor L9012; the No. 1 pin of the chip U9017 is connected with an input signal VUBS _ TYPEC of a charger and is connected with one end of a capacitor C9024, and the other pin of the capacitor C9024 is connected with the ground;
one pin of the capacitor C9012 is connected with a pin 21 of the chip U9017, the other pin of the capacitor C9012 is connected to pins 19 and 20 of the U9017 and one end of the inductor L9012, and the other pin of the inductor L9012 is connected to a common signal VBAT of the capacitor C9014 and the capacitor C9026 to supply power to a system;
one end of the capacitor C9016 is connected with the No. 22 of the chip U9017, and the other end of the capacitor C9016 is connected to the ground;
the capacitor C9033 is connected to a No. 23 pin of the chip U9017, and the other end of the capacitor C9033 is grounded;
one pin of the resistor R9121 is connected with a pin 24 of the chip U9017, the other end of the resistor R9121 is connected to VBAT, one end of the resistor R9031 is connected to a pin 8 of the chip U9017, and the other pin is connected with VBAT;
one end of the resistor R9032 is connected to a No. 10 pin of the chip U9017, and the other pin of the resistor R9032 is connected with the ground;
one end of the resistor R9012 is connected with a No. 11 pin of the chip U9017, and the other end of the resistor R9012 is connected with the ground;
one end of the resistor R9022 is connected with a No. 12 pin of the chip U9017, and the other end of the resistor R9022 is connected with the ground.
Referring to fig. 2, the USB signal switch switching circuit includes a chip U6802, a capacitor C6810, and a resistor R6803, where one end of the capacitor C6810 is connected to pin 9 of U6802, and the other end is connected to ground; resistor R6803 has one end connected to pin 10 of U6802 and the other end connected to the DSEL signal.
The utility model discloses a theory of operation is: when the charger is plugged into a circuit, the charger outputs low voltage by default, the No. 24 pin of U9017 outputs low level, the No. 10 pin of U6802 inputs low level, and U6802 is switched to a channel D1;
at this time, if the inserted charger supports communication with the U9017, the U9017 holds communication with the charger through an 2/3 pin signal CHG _ USB _ D-, CHG _ USB _ D +, and the charger outputs high voltage for charging;
if the inserted charger does not support communication with the U9017, the U9017 does not perform handshake communication with the charger through 2/3-th pin signals CHG _ USB _ D-, CHG _ USB _ D +, so that the charger outputs a default low voltage for charging. Therefore, the electronic equipment is self-adaptively charged, and the charging time is shortened. When the 24 pin of U9017 outputs high level after the communication of the charger is completed, U6802 is switched to the D2 channel for other purposes of the system.
Above only the typical example of the utility model discloses, in addition, the utility model discloses can also have other multiple concrete implementation manners, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall in the utility model discloses the scope of claiming.
Claims (3)
1. A charging circuit of self-adaptation charging voltage characterized in that:
the charger comprises a charging circuit part, wherein a chip U9017 is arranged in the charging circuit part, and the chip U9017 is used for correspondingly charging the charging circuit part according to the voltage output type supported by the charger;
and the USB signal switch switching circuit part is connected with the charging circuit part and used for switching signal channels.
2. The adaptive charging voltage charging circuit of claim 1, wherein: the charging circuit part also comprises a capacitor C9024, a capacitor C9033, a capacitor C9012, a capacitor C9016, a capacitor C9014, a capacitor C9026, a capacitor C9019, a resistor R9121, a resistor R9031, a resistor R9032, a resistor R9021, a resistor R9022 and an inductor L9012; the No. 1 pin of the chip U9017 is connected with an input signal VUBS _ TYPEC of a charger and is connected with one end of a capacitor C9024, and the other pin of the capacitor C9024 is connected with the ground;
one pin of the capacitor C9012 is connected with a pin 21 of the chip U9017, the other pin of the capacitor C9012 is connected to pins 19 and 20 of the U9017 and one end of the inductor L9012, and the other pin of the inductor L9012 is connected to a common signal VBAT of the capacitor C9014 and the capacitor C9026 to supply power to a system;
one end of the capacitor C9016 is connected with the No. 22 of the chip U9017, and the other end of the capacitor C9016 is connected to the ground;
the capacitor C9033 is connected to a No. 23 pin of the chip U9017, and the other end of the capacitor C9033 is grounded;
one pin of the resistor R9121 is connected with a pin 24 of the chip U9017, the other end of the resistor R9121 is connected to VBAT, one end of the resistor R9031 is connected to a pin 8 of the chip U9017, and the other pin is connected with VBAT;
one end of the resistor R9032 is connected to a No. 10 pin of the chip U9017, and the other pin of the resistor R9032 is connected with the ground;
one end of the resistor R9012 is connected with a No. 11 pin of the chip U9017, and the other end of the resistor R9012 is connected with the ground;
one end of the resistor R9022 is connected with a No. 12 pin of the chip U9017, and the other end of the resistor R9022 is connected with the ground.
3. The adaptive charging voltage charging circuit of claim 2, wherein: the USB signal switch switching circuit part comprises a chip U6802, a capacitor C6810 and a resistor R6803, wherein one end of the capacitor C6810 is connected with a No. 9 pin of the U6802, and the other end of the capacitor C6810 is connected with the ground; resistor R6803 has one end connected to pin 10 of U6802 and the other end connected to the DSEL signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922238896.8U CN210806814U (en) | 2019-12-13 | 2019-12-13 | Charging circuit capable of self-adapting to charging voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922238896.8U CN210806814U (en) | 2019-12-13 | 2019-12-13 | Charging circuit capable of self-adapting to charging voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210806814U true CN210806814U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922238896.8U Active CN210806814U (en) | 2019-12-13 | 2019-12-13 | Charging circuit capable of self-adapting to charging voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210806814U (en) |
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2019
- 2019-12-13 CN CN201922238896.8U patent/CN210806814U/en active Active
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