CN-121984157-A - Charging control circuit, method and charging device

CN121984157ACN 121984157 ACN121984157 ACN 121984157ACN-121984157-A

Abstract

The application discloses a charging control circuit, a method and a charging device, wherein the circuit comprises a first wired power supply circuit, a wireless charging circuit, a monitoring circuit and an alternating current-direct current conversion circuit, the alternating current-direct current conversion circuit is used for converting externally accessed alternating current into direct current, the monitoring circuit is used for monitoring whether the alternating current-direct current conversion circuit is accessed to an alternating current power supply or not, if the alternating current power supply is accessed to the alternating current-direct current conversion circuit, the alternating current-direct current conversion circuit provides required direct current for the first wired power supply circuit and/or the wireless charging circuit, the first wired power supply circuit is also used for externally connecting a direct current power supply, the monitoring circuit monitors that the alternating current-direct current conversion circuit is in air connection and the first wired power supply circuit is externally connected with the direct current power supply, and the first wired power supply circuit supplies power to the wireless charging circuit. Based on the application, the bidirectional power supply can be realized through the same wired interface, so that the external charging output can be realized, the alternating current or direct current power supply can be received, the application diversity requirement of the charging product is improved, and the user experience is enhanced.

Inventors

HUANG ZHIQIANG
PENG HAO
DONG JIAN
Hong Haihe
TIAN YE

Assignees

深圳市魔方数码科技有限公司

Dates

Publication Date: 20260505
Application Date: 20250930

Claims (10)

1. The charging control circuit is characterized by comprising a first wired power supply circuit, a wireless charging circuit, a monitoring circuit and an alternating current-direct current conversion circuit; The alternating current-direct current conversion circuit is used for converting externally accessed alternating current into direct current, the alternating current-direct current conversion circuit is respectively in power supply connection with the first wired power supply circuit and the wireless charging circuit, the monitoring circuit is also in electric connection with the alternating current-direct current conversion circuit, the monitoring circuit is used for monitoring whether the alternating current-direct current conversion circuit is accessed to an alternating current power supply, and if the alternating current power supply is accessed, the alternating current-direct current conversion circuit provides direct current for the first wired power supply circuit and/or the wireless charging circuit; The first wired power supply circuit is further used for being externally connected with a direct current power supply, the first wired power supply circuit is further in power supply connection with the wireless charging circuit, the monitoring circuit monitors that the alternating current-direct current conversion circuit is in air connection and the first wired power supply circuit is externally connected with the direct current power supply, and the first wired power supply circuit supplies power to the wireless charging circuit.
2. The charge control circuit of claim 1, further comprising an identification circuit electrically connected between the monitoring circuit and the ac-dc conversion circuit, the identification circuit configured to identify whether the ac-dc conversion circuit has a dc output.
3. The charge control circuit of claim 1 further comprising a second wired power supply circuit, the ac to dc conversion circuit being in power connection with the second wired power supply circuit, the second wired power supply circuit also being in power connection with the wireless charging circuit.
4. The charge control circuit of claim 1, wherein a first data line is further provided between the monitoring circuit and the first wired power supply circuit for the monitoring circuit to exchange charging information with the charged electronic product via the first data line.
5. The charge control circuit of claim 4, wherein a second data line is disposed between the monitoring circuit and the ac-dc conversion circuit, for the monitoring circuit to regulate the dc parameter output by the ac-dc conversion circuit via the second data line.
6. The charge control circuit of claim 1, wherein the monitoring circuit is configured with the first wired power supply circuit and the wireless charging circuit, respectively, to monitor the charging conditions of the two circuits, respectively.
7. The charge control circuit of claim 1, wherein the monitoring circuit is provided with enable signal lines respectively with the first wired power supply circuit and the wireless charging circuit for controlling the power supply channels of the two circuits to be turned on or off, respectively.
8. A charging control method for charging control of a charging device, characterized by: The charging device comprises a first wired power supply circuit, a wireless charging circuit, a monitoring circuit and an alternating current-direct current conversion circuit; The monitoring circuit monitors that the AC/DC conversion circuit is connected to an AC power supply, the AC/DC conversion circuit provides direct current for the first wired power supply circuit and the wireless charging circuit, and the first wired power supply circuit and the wireless charging circuit both work in an output mode and are respectively used for supplying power to the external wired power supply and charging the external wired power supply and the wireless charging circuit; the monitoring circuit monitors that the alternating current-direct current conversion circuit is not connected with an alternating current power supply, and monitors that the first wired power supply circuit is externally connected with a direct current power supply, the first wired power supply circuit supplies power to the wireless charging circuit, and the wireless charging circuit is used for externally and wirelessly charging.
9. The charge control method according to claim 8, characterized in that: The charging device further comprises a second wired power supply circuit, the monitoring circuit monitors that the alternating current-direct current conversion circuit is connected to an alternating current power supply, the alternating current-direct current conversion circuit further provides direct current for the second wired power supply circuit, and the second wired power supply circuit also works in an output mode and is used for supplying power to the external wires.
10. A charging device comprising the charging control circuit according to any one of claims 1 to 7 or the charging control method according to any one of claims 8 to 9.

Description

Charging control circuit, method and charging device Technical Field The present application relates to the field of charger technologies, and in particular, to a charging control circuit, a charging control method, and a charging device. Background In the prior art, a charging device for providing charging for an electronic product can provide a plurality of charging output modes, including a wireless charging output mode, a wired charging output mode, etc., so as to adapt to different kinds of charging requirements. However, these charging devices still support only the ac power supply mode, and this single mode power input mode limits the application range of the charging device. Disclosure of Invention The application mainly solves the technical problem of providing a charging control circuit, a charging control method and a charging device so as to adapt to the application requirements of multiple interface types and multiple power inputs and enhance the user experience. The technical scheme includes that the charging control circuit comprises a first wired power supply circuit, a wireless charging circuit, a monitoring circuit and an alternating current-direct current conversion circuit, wherein the alternating current-direct current conversion circuit is used for converting externally-connected alternating current into direct current, the alternating current-direct current conversion circuit is respectively connected with the first wired power supply circuit and the wireless charging circuit in a power supply mode, the monitoring circuit is further electrically connected with the alternating current-direct current conversion circuit, the monitoring circuit is used for monitoring whether the alternating current-direct current conversion circuit is connected with an alternating current power supply or not, if the alternating current power supply is connected with the alternating current-direct current conversion circuit, the alternating current-direct current conversion circuit provides direct current for the first wired power supply circuit and/or the wireless charging circuit, the first wired power supply circuit is further connected with the wireless charging circuit in a power supply mode, the monitoring circuit monitors that the alternating current-direct current conversion circuit is in an idle mode, the first wired power supply circuit is externally connected with the direct current power supply, and the first wired power supply circuit supplies power to the wireless charging circuit. In some embodiments, an identification circuit is also electrically connected between the monitoring circuit and the ac-dc conversion circuit, the identification circuit being configured to identify whether the ac-dc conversion circuit has a dc output. In some embodiments, the wireless charging circuit further comprises a second wired power supply circuit, the ac-dc conversion circuit is in power supply connection with the second wired power supply circuit, and the second wired power supply circuit is also in power supply connection with the wireless charging circuit. In some embodiments, a first data line is further disposed between the monitoring circuit and the first wired power supply circuit, and is used for the monitoring circuit to exchange charging information with the charged electronic product via the first data line. In some embodiments, a second data line is disposed between the monitoring circuit and the ac-dc conversion circuit, and is used for the monitoring circuit to regulate the dc parameter output by the ac-dc conversion circuit via the second data line. In some embodiments, the monitoring circuit is respectively provided with a monitoring circuit with the first wired power supply circuit and the wireless charging circuit, and is respectively used for monitoring the charging conditions of the two circuits. In some embodiments, the monitoring circuit is provided with an enabling signal line respectively with the first wired power supply circuit and the wireless charging circuit, and the enabling signal line is used for controlling the power supply channels of the first wired power supply circuit and the wireless charging circuit to be connected or disconnected respectively. Based on the same conception, the invention further provides a charging control method for charging control of the charging device, which comprises a first wired power supply circuit, a wireless charging circuit, a monitoring circuit and an alternating current-direct current conversion circuit, wherein the monitoring circuit monitors that the alternating current-direct current conversion circuit is connected with an alternating current power supply, the alternating current-direct current conversion circuit provides direct current for the first wired power supply circuit and the wireless charging circuit, the first wired power supply circuit and the wireless charging circuit both work in output modes and are respectively used fo