CN219018508U - Charger control circuit - Google Patents
Charger control circuit Download PDFInfo
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- CN219018508U CN219018508U CN202223297910.XU CN202223297910U CN219018508U CN 219018508 U CN219018508 U CN 219018508U CN 202223297910 U CN202223297910 U CN 202223297910U CN 219018508 U CN219018508 U CN 219018508U
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Abstract
The utility model provides a charger control circuit, comprising: the USB charging socket comprises a rectifying circuit, a main control chip, a protocol control chip, a USB charging socket and a TYPE-C charging socket, wherein a power input pin of the main control chip is connected with an output end of the rectifying circuit, an output voltage feedback input end of the main control chip is connected with a feedback output end of the protocol control chip, a charging output pin of the main control chip is connected with a voltage positive output pin of the USB charging socket and a bus power pin of the TYPE-C charging socket, and a grounding pin of the TYPE-C charging socket is connected with a fast charging enabling pin of the protocol control chip. The utility model can realize the chargers with two different charging interfaces through the main control chip and the protocol control chip, has simple realization and low cost, can realize the conversion between quick charging and common charging without adding complicated circuits, and has stable and reliable circuits.
Description
Technical Field
The utility model relates to the technical field of charging, in particular to a charger control circuit.
Background
Currently, a charger on the market generally has only one interface, for example, only a USB interface or only a TYPE-C interface, and is difficult to adapt to the charging requirements of mobile phones with different interfaces of users. If the USB port and the TYPE-C interface are to be made on one charger, the USB port and the TYPE-C interface are required to be realized through software of a controller, so that the USB port and the TYPE-C interface are complex to realize and high in cost.
Disclosure of Invention
The present utility model provides a charger control circuit to solve at least one of the above technical problems.
To solve the above-described problems, as one aspect of the present utility model, there is provided a charger control circuit comprising: the USB charging socket comprises a rectifying circuit, a main control chip, a protocol control chip, a USB charging socket and a TYPE-C charging socket, wherein a power input pin of the main control chip is connected with an output end of the rectifying circuit, an output voltage feedback input end of the main control chip is connected with a feedback output end of the protocol control chip, a charging output pin of the main control chip is connected with a voltage positive output pin of the USB charging socket and a bus power pin of the TYPE-C charging socket, and a grounding pin of the TYPE-C charging socket is connected with a fast charging enabling pin of the protocol control chip.
Preferably, a charging output pin of the main control chip is connected with a power supply pin of the protocol control chip through a first resistor.
Preferably, the data pin of the protocol control chip is connected with the data pin of the USB charging socket.
Preferably, the main control chip adopts NDP1331NC, and the protocol control chip adopts FP6601Q.
Due to the adoption of the technology
The utility model can realize the charger control circuit of two different charging interfaces through the main control chip and the protocol control chip, has simple realization and low cost, can realize the conversion between quick charging and common charging without adding a complicated circuit, and has stable and reliable circuit.
Drawings
Fig. 1 schematically shows a circuit schematic of the present utility model.
Detailed Description
The following describes embodiments of the utility model in detail, but the utility model may be practiced in a variety of different ways, as defined and covered by the claims.
As one aspect of the present utility model, there is provided a charger control circuit comprising: the USB charging socket comprises a rectifying circuit, a main control chip U1, a protocol control chip U2, a USB charging socket J1 and a TYPE-C charging socket J2, wherein a power input pin of the main control chip U1 is connected with an output end DC+/DC of the rectifying circuit, an output voltage feedback input end (1 pin) of the main control chip U1 is connected with a feedback output end (3 pin) of the protocol control chip U2, a charging output pin (3 pin) of the main control chip U1 is connected with a voltage positive output pin V of the USB charging socket J1 and a bus power supply pin VBUS (A4, A9, B4, B9) of the TYPE-C charging socket J2, and a grounding pin (A1, B12, A1 pin) of the TYPE-C charging socket J2 is connected with a fast charging enabling pin (4 pin) of the protocol control chip U2.
Preferably, the charging output pin of the main control chip U1 is connected to the power pin of the protocol control chip U2 through a first resistor R6.
Preferably, the data pin of the protocol control chip U2 is connected with the data pin of the USB charging socket J1.
Preferably, the main control chip U1 adopts an NDP1331NC, and the protocol control chip U2 adopts an FP6601Q. Obviously, other chips with the same or similar functions known in the art can be used for replacing the chips with the above types, and the chip is within the protection scope of the utility model.
Hereinafter, the operation and principle of the present utility model will be described in detail by taking NDP1331NC/KC and FP6601Q chips as examples.
The charging output pin (3 pins) of the main control chip U1 is connected with the USB charging master socket J1 and the TYPE-C charging master socket J2 at the same time, and whether quick charging or non-quick charging is determined according to signals output by the feedback output end (3 pins) of the protocol control chip U2.
In the use process, when the charging device is inserted into the USB charging socket J1, the ground pins (A1, B12, a12, B1 pins) of the TYPE-C charging socket J2 are in a suspended state, and at this time, the feedback output end (3 pins) of the protocol control chip U2 outputs a high level to the output voltage feedback input end (1 pin) of the main control chip U1, so that the main control chip U1 performs fast charging on the device of the USB charging socket J1.
When the user inserts the device into the TYPE-C charging socket J2, at the moment, the grounding pins (A1, B12, A12 and B1 pins) of the TYPE-C charging socket J2 are grounded, so that the feedback output end (3 pins) of the protocol control chip U2 outputs a low level to the output voltage feedback input end (1 pin) of the main control chip U1, and then the main control chip U1 performs conventional non-fast charging to the device of the USB charging socket J1 and the device in the TYPE-C charging socket J2 at the same time, thereby supporting charging of the devices with two different interfaces and avoiding burning of the device in the YPE-C charging socket J2 due to different charging voltages.
By adopting the technical scheme, the utility model can utilize the state change of the grounding pin of the TYPE-C charging master socket J2 when the equipment to be charged is inserted, so that the feedback output end of the protocol control chip U2 generates a feedback signal for controlling whether the main control chip U1 outputs the quick charging or not, thereby realizing the quick charging when only the USB charging master socket is used and the non-quick charging when the USB and TYPE-C are simultaneously used for charging, and ensuring the safety of the equipment to be charged. In addition, through the circuit, the existing charger capable of realizing output of only one USB port can realize the functions of both single-port quick charging and double-port simultaneous charging by changing the wiring method of the charger female seat and keeping the original circuit.
Due to the adoption of the technology
The utility model can realize the chargers with two different charging interfaces through the main control chip and the protocol control chip, has simple realization and low cost, can realize the conversion between quick charging and common charging without adding complicated circuits, and has stable and reliable circuits.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. A charger control circuit, comprising: rectifier circuit, main control chip (U1), protocol control chip (U2), USB female seat (J1) and TYPE-C female seat (J2) that charges, the power input pin of main control chip (U1) with rectifier circuit's output is connected, the output voltage feedback input of main control chip (U1) with protocol control chip (U2) feedback output is connected, main control chip (U1) charge output pin with USB female seat (J1) that charges's voltage positive output pin, TYPE-C female seat (J2) that charges bus power pin is connected, TYPE-C female seat (J2) ground pin with protocol control chip (U2) charge soon and enable the pin to be connected.
2. The charger control circuit according to claim 1, wherein the charging output pin of the main control chip (U1) is connected to the power supply pin of the protocol control chip (U2) through a first resistor (R6).
3. The charger control circuit according to claim 1, wherein the data pin of the protocol control chip (U2) is connected with the data pin of the USB charging socket (J1).
4. The charger control circuit according to claim 1, wherein the main control chip (U1) employs NDP1331NC and the protocol control chip (U2) employs FP6601Q.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223297910.XU CN219018508U (en) | 2022-12-07 | 2022-12-07 | Charger control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223297910.XU CN219018508U (en) | 2022-12-07 | 2022-12-07 | Charger control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219018508U true CN219018508U (en) | 2023-05-12 |
Family
ID=86267822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223297910.XU Active CN219018508U (en) | 2022-12-07 | 2022-12-07 | Charger control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219018508U (en) |
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2022
- 2022-12-07 CN CN202223297910.XU patent/CN219018508U/en active Active
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