TWI385894B - Electronic apparatus and charging method thereof - Google Patents

Description

Electronic device and charging method thereof

The present invention relates to an electronic device that can be powered by a battery, and more particularly to an electronic device that can perform data transmission with an external device and a charging method thereof.

There are more and more types of portable electronic products, such as mobile phones, MP3s and so on. Two common features of this type of electronic product are data transmission and battery power. For example, mobile phones and MP3s can copy songs from your computer.

A copy of the data requires a transmission line, usually a USB transmission line. Because the current transmission lines include multiple channels such as power supply and data transmission, the current electronic product design adds the function of charging the battery while transmitting data for the electronic product.

Because of the frequent transmission of data, that is, the frequent insertion and removal of transmission lines, the battery will be frequently charged. However, an increase in the number of times the battery is charged will result in a shortened battery life, which in turn will cause loss to the user.

In view of this, it is necessary to provide an electronic device that guarantees battery life.

It is also necessary to provide a charging method for an electronic device that can guarantee battery life.

An electronic device for connecting data and receiving power by connecting a transmission line to an external device, the electronic device comprising: a data processing unit for performing data transmission with an external device by the transmission line; and a charging circuit, And configured to charge a battery by using a power source received through the transmission line while the electronic device and the external device transmit data through the transmission line; the electronic device further includes a charging selection unit configured to generate a charging instruction according to a user input, the charging circuit The charging of the battery is started by the received power source while the electronic device performs data transmission with the external device based on the charging instruction.

A charging method for an electronic device, comprising the steps of: establishing a data transmission and a power transmission channel with another device through a transmission line; generating a charging instruction in response to a user operation; and transmitting data between the electronic device and the external device via the transmission line according to the charging instruction At the same time, the power transmitted by the power transmission channel is used to charge the battery in the electronic device.

In the above electronic device and the charging method thereof, the charging operation of the battery needs to be started based on the user operation, which satisfies the charging problem when the power is insufficient, and avoids the frequent charging action every time data transmission, thereby ensuring the battery life.

Please refer to FIG. 3 , which is a data transmission system 10 of a preferred embodiment, including an external device 100 , a transmission line 200 , and an electronic device 300 .

The external device 100 is used to provide data and power, such as a computer.

The transmission line 200 is a data/power dual channel transmission cable such as a USB cable. Transmission line 200 includes a data channel 202 and a power channel 204 for data and power transmission, respectively. The electronic device 300 is provided with a corresponding data/power dual channel interface, such as a USB interface.

The electronic device 300 is configured to receive the number sent by the external device by using the transmission line 200. And the power supply to save the data and use the received power to charge itself.

The electronic device 300 includes a data processing unit 302, a data storage unit 304, a charging selection unit 306, a charging circuit 308, and a battery 310.

The data processing unit 302 is configured to perform data transmission with the external device 100, such as receiving data transmitted by the external device 100 or transmitting data to the external device 100 according to a transmission protocol corresponding to the transmission line 200.

The data storage unit 304 is for storing data received by the data processing unit 302.

The charge selection unit 306 is configured to generate a charge command and a pause command according to the user's input. The user input can be a user's key operation or mechanical switch operation.

The charging circuit 308 is configured to operate according to the charging command or the suspending instruction. When receiving the charging command, the charging circuit 308 turns on the power channel 204 and the battery 310 and charges the battery 310 with the received power source, when receiving the pause command. The charging circuit 308 disconnects the power supply channel 204 from the battery 310 to stop charging.

The electronic device 300 can perform data transmission with the external device 100, and can selectively charge the battery based on the user operation, which not only satisfies the charging problem when the battery is insufficient, but also avoids frequent charging actions during each data transmission. To ensure battery life. Moreover, the charging of the battery 310 can be stopped at any time when needed.

Please refer to FIG. 2 , which is a charging method of an electronic device according to a preferred embodiment. In the process step diagram, the electronic device can perform data transmission with an external device and selectively charge a battery in the electronic device during data transmission. The charging method of the electronic device includes the following steps:

Step S403, establishing a data transmission and power transmission channel with the other device by the transmission line, the transmission line is a transmission cable with two channels of data and power, such as a USB connection line. The external device can be a computer.

Step S405, generating a charging instruction in response to a user operation.

Step S407, charging the battery in the electronic device by using the power transmitted by the power transmission channel according to the charging instruction.

Step S409, generating a pause instruction in response to a user operation.

In step S411, charging of the battery is stopped according to the pause command.

In the charging method of the electronic device, the charging operation of the battery needs to be started based on the user operation, which satisfies the charging problem when the power is insufficient, and avoids the frequent charging action every time data transmission, thereby ensuring the battery life. And you can stop charging the battery at any time when you need it.

It is to be understood by those skilled in the art that the above embodiments are only intended to illustrate the invention, and are not intended to limit the invention, as long as it is within the spirit of the invention Changes and modifications are intended to fall within the scope of the invention.

10‧‧‧Data transmission system

302‧‧‧Data Processing Unit

100‧‧‧External equipment

304‧‧‧data storage unit

200‧‧‧ transmission line

306‧‧‧Charging selection unit

300‧‧‧Electronic devices

308‧‧‧Charging circuit

202‧‧‧Data channel

310‧‧‧Battery

204‧‧‧Power channel

S403~S411‧‧‧Electrical device charging method flow

1 is a block diagram of a data transmission system in accordance with a preferred embodiment.

2 is a flow chart of a charging method of an electronic device according to a preferred embodiment of the present invention. .

10‧‧‧Data transmission system

302‧‧‧Data Processing Unit

100‧‧‧External equipment

304‧‧‧data storage unit

200‧‧‧ transmission line

306‧‧‧Charging selection unit

300‧‧‧Electronic devices

308‧‧‧Charging circuit

202‧‧‧Data channel

310‧‧‧Battery

204‧‧‧Power channel

Claims (10)

An electronic device for connecting data and receiving power by connecting a transmission line to an external device, the electronic device comprising: a data processing unit for performing data transmission with an external device by the transmission line; and a charging circuit for the electronic device Recharging the battery with the power received by the transmission line while the external device is transmitting data through the transmission line; the improvement is that the electronic device further includes a charging selection unit for generating a charging instruction according to a user input, the charging circuit is based on The charging command starts charging the battery with the received power source while the electronic device is transmitting data with the external device. The electronic device of claim 1, wherein the charging selection unit is further configured to generate a pause command according to a user input, the charging circuit further configured to stop charging the battery according to the pause command. The electronic device of claim 1, wherein the user input is a user's key operation or a mechanical switch operation. The electronic device of claim 1, wherein the electronic device is provided with a data/power dual channel interface for connecting to a transmission line with data and power dual channels. The electronic device of claim 4, wherein the data/power dual channel interface is a USB interface. A charging method for an electronic device, comprising the steps of: establishing a data transmission and a power transmission channel with another device through a transmission line; generating a charging instruction in response to a user operation; and performing, on the transmission line, the electronic device and the external device according to the charging instruction The data transmitted by the power transmission channel simultaneously charges the battery in the electronic device. The charging method of the electronic device of claim 6, wherein the charging method of the electronic device further comprises the steps of: generating a pause command in response to a user operation; and stopping charging of the battery according to the pause command. The charging method of the electronic device according to claim 6, wherein the electronic device is provided with a data/power dual channel interface, and the transmission line is a transmission cable with two channels of data and power. The charging method of the electronic device according to claim 8, wherein the data/power dual channel interface is a USB interface. The charging method of the electronic device according to claim 6, wherein the input of the user is a key operation or a mechanical switch operation of the user.