CN-121984160-A - Quick-charging chip and quick-charging equipment

CN121984160ACN 121984160 ACN121984160 ACN 121984160ACN-121984160-A

Abstract

The embodiment of the invention discloses a quick-charging chip and quick-charging equipment. The fast charging chip comprises a plurality of port control modules, a plurality of protocol control modules, at least one protocol physical layer forwarding module, a plurality of switching tube driving modules, a control module and a switching tube driving module, wherein the plurality of port control modules are used for being connected with an external port and detecting connection states, the plurality of protocol control modules are correspondingly connected with the port control modules and used for receiving and transmitting protocol physical layer data packets through configuration channel signals and encoding and decoding the protocol physical layer data packets, the at least one protocol physical layer forwarding module is connected between the two port control modules and used for forwarding the protocol physical layer data packets in a bidirectional mode and outputting protocol receiving and transmitting state information, the plurality of switching tube driving modules are used for driving the external switching tubes to control on-off of a power supply branch, and the control module is used for controlling the switching tube driving modules according to protocol negotiation results and the protocol receiving and transmitting state information. Through the mode, the embodiment of the invention can realize the direct forwarding of the data packet at the protocol physical layer, reduce the complexity of software and hardware, and improve the response speed and compatibility of fast charging.

Inventors

LI CHONGBIN
WANG WANJUN
DING MIAO

Assignees

珠海英集芯半导体有限公司

Dates

Publication Date: 20260505
Application Date: 20251230

Claims (10)

1. A quick charge chip, comprising: The port control modules are used for being connected with one external port and detecting the connection state of the connected external port; Each protocol control module is correspondingly connected with one port control module, and is used for receiving and transmitting protocol physical layer data packets through configuration channel signals of the corresponding port control module, and encoding and decoding the protocol physical layer data packets; Each protocol physical layer forwarding module is connected between the two port control modules, and is used for forwarding protocol physical layer data packets in a bidirectional manner between the two connected port control modules and outputting protocol receiving and transmitting state information; Each switching tube driving module is used for driving an external switching tube so as to control the on-off of a corresponding power supply branch; and the control module is used for receiving the protocol negotiation result output by the protocol control module and the protocol transceiving state information output by the protocol physical layer forwarding module, and controlling the switching tube driving module according to the protocol negotiation result and the protocol transceiving state information.
2. The quick charge chip of claim 1, further comprising: The voltage regulation driving module is used for driving an external voltage reduction circuit to regulate the output voltage of the corresponding power supply branch circuit; The control module is also used for controlling the voltage regulating driving module according to the protocol negotiation result.
3. The fast-charging chip of claim 1, wherein the protocol physical layer forwarding module is further configured to detect a connection state of the connected port control module, and determine a configuration channel for forwarding a protocol physical layer packet according to the connection state.
4. The fast-charging chip of claim 1, wherein the protocol physical layer forwarding module is further configured to detect a start signal of a protocol physical layer packet, and initiate forwarding when the start signal is detected.
5. The fast charging chip of claim 1, wherein a start-up forwarding delay of the protocol physical layer forwarding module is less than a first preset threshold, and a delay of the protocol physical layer forwarding module in a forwarding process is less than a second preset threshold.
6. The fast-charging chip according to any one of claims 1 to 5, wherein the number of the port control modules is three, the number of the protocol physical layer forwarding modules is two, and the number of the switching tube driving modules is four.
7. The quick charge chip of claim 6, wherein the three port control modules are a first port control module, a second port control module, and a third port control module, respectively; the two protocol physical layer forwarding modules are a first protocol physical layer forwarding module and a second protocol physical layer forwarding module respectively; the first protocol physical layer forwarding module is connected between the first port control module and the second port control module, and the second protocol physical layer forwarding module is connected between the first port control module and the third port control module; the first port control module is used for being connected with an external input port, and the second port control module and the third port control module are respectively used for being connected with an external output port.
8. The quick charge chip of claim 7, wherein the four switching tube driving modules are a first switching tube driving module, a second switching tube driving module, a third switching tube driving module, and a fourth switching tube driving module, respectively; The first switching tube driving module and the second switching tube driving module are used for controlling the on-off of a power supply branch circuit between the external input port and an external output port connected with the second port control module; the third switching tube driving module and the fourth switching tube driving module are used for controlling the on-off of a power supply branch circuit between the external input port and the external output port connected with the third port control module.
9. A quick-fill apparatus, comprising: an input port for connecting to a power adapter; at least two output ports for connecting to-be-charged devices; The fast-charging chip of any one of claims 1 to 8; And each switching tube is connected with a corresponding switching tube driving module in the fast charging chip and is used for controlling the on-off of a power supply branch between the input port and each output port under the driving of the switching tube driving module.
10. The quick charge apparatus of claim 9, further comprising: the input end of the voltage reducing circuit is connected with the power supply branch of the input port, the output end of the voltage reducing circuit is connected with at least one power supply branch of the output port through the switch tube, and the control end of the voltage reducing circuit is connected with the voltage regulating driving module in the quick charging chip.

Description

Quick-charging chip and quick-charging equipment Technical Field The embodiment of the invention relates to the field of fast charging of power transmission protocols, in particular to a fast charging chip and fast charging equipment. Background Along with the increasing requirements of mobile terminal equipment on quick charging efficiency, the requirement of users on simultaneous charging of multiple devices on a traditional single-port output data line is difficult to meet. In order to realize the multi-port quick charge output function under the single-port input condition, the prior art generally adopts a scheme of multi-chip cooperative work. Taking an application scenario of one-to-two cable as an example, the prior art scheme generally needs to configure an SNK protocol chip and an SRC protocol chip. The SNK protocol chip is connected with the input port and used for analyzing PD protocol data from the Type-C Sink interface, and the SRC protocol chip is connected with the output port and used for sending the PD protocol data to the Type-C Source interface. In the data transmission process, the SNK protocol chip firstly processes PD protocol layer data analyzed from the input port, then forwards the processed data to the SRC protocol chip through protocol layer communication, and finally the SRC protocol chip analyzes the processed data and sends the analyzed data to the corresponding output port. The technical scheme has the following defects that firstly, a plurality of protocol chips are required to be configured, protocol layer communication is required to be carried out among the chips, so that the complexity of software and hardware of a system is high, development difficulty and cost are correspondingly increased, secondly, PD protocol data is required to be subjected to a plurality of links such as analysis, processing and forwarding of a protocol layer, so that data forwarding delay is high, the response speed of a quick-charging system is influenced, and in addition, unstable factors of the system are increased due to the protocol layer communication among the chips in the multi-chip scheme, so that quick-charging compatibility is poor. Disclosure of Invention The technical problem which is mainly solved by the embodiment of the invention is to provide a quick-charging chip and quick-charging equipment, which can solve at least part of defects existing in the existing quick-charging system. The embodiment of the invention provides a fast-charging chip, which comprises a plurality of port control modules, a plurality of protocol control modules, at least one protocol physical layer forwarding module and a plurality of switch tube driving modules, wherein each port control module is used for being connected with one external port and detecting the connection state of the connected external port, each protocol control module is correspondingly connected with one port control module and used for receiving and transmitting a protocol physical layer data packet through a configuration channel signal of the corresponding port control module and encoding and decoding the protocol physical layer data packet, each protocol physical layer forwarding module is connected between the two port control modules and used for forwarding the protocol physical layer data packet in a bidirectional mode between the two connected port control modules and outputting protocol receiving and transmitting state information, each switch tube driving module is used for driving an external switch tube so as to control the on-off state of a corresponding power branch, and the control module is used for receiving a protocol negotiation result output by the protocol control module and protocol receiving and transmitting state information output by the protocol physical layer forwarding module and transmitting and receiving and transmitting the protocol physical layer data packet according to the negotiation result and the protocol physical layer forwarding module and the protocol receiving and the protocol state information. Optionally, the fast charging chip further comprises a voltage regulation driving module, wherein the voltage regulation driving module is used for driving an external voltage reduction circuit to regulate output voltage of a corresponding power supply branch, and the control module is further used for controlling the voltage regulation driving module according to the protocol negotiation result. Optionally, the protocol physical layer forwarding module is further configured to detect a connection state of the connected port control module, and determine a configuration channel for forwarding the protocol physical layer data packet according to the connection state. Optionally, the protocol physical layer forwarding module is further configured to detect a start signal of a protocol physical layer packet, and initiate forwarding when the start signal is detected. Optionally, the start forwarding delay of