Charger and method for controlling connection between the charger and external electric power source
A technology of external power supply and charging power supply, applied in the field of electronics, can solve problems such as waste of power resources, and achieve the effect of avoiding waste of power
Active Publication Date: 2009-06-17
HUAWEI DEVICE (SHENZHEN) CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Many people are used to only disconnecting the charging device and not the charger after the device is charged. In this way, even if the charger is not connected to the charging device, it will also lead to a waste of power resources.
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] An embodiment of the present invention provides a charger that can automatically control the circuit connection with a charging power source.
[0025] The charger provided by the embodiments of the present invention will be described in detail below with reference to the drawings and specific embodiments.
[0026] The charger provided by the embodiment of the present invention, such as figure 1 shown, including:
[0027] A load detection unit 130, configur...
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The embodiment of the invention discloses a charger, which comprises a load detection unit, a charging unit and a charging circuit control unit, wherein the load detection unit is used to detect whether loads is accessed, the charging unit is equipped with a power input end, and is used to convert external power to charging power when the power input end is connected with the external power, thereby charging for the accessed loads. The charging circuit control unit is used to connect the power input end of the charging unit with the external power when the load detection unit detects that the loads is accessed. The embodiment of the invention further discloses a method for controlling the charger to connect with the external power, which comprises: detecting whether the loads is accessed to the charger, if the loads is accessed, the charger is connected with the external power, if the loads is not accessed, the connection between the charger and the external power is cut off. The embodiment of the invention can save power when the charger has no loads.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a charger and a method for controlling the connection between the charger and an external power supply. Background technique [0002] At present, when using a charger to charge a device, it is generally only concerned with the protection of the charging device, or with the charging device being fully charged, and seldom pays attention to the power consumption when the charger is idle, that is, the charger is connected to the charging power source but not hung up. The case of the charging device. Many people are used to only disconnecting the charging device but not the charger after the device is charged. In this way, even if the charger is not connected to the charging device, it will also lead to a waste of power resources. Contents of the invention [0003] Embodiments of the present invention provide a method for controlling the connection between a charger and an exte...
Claims
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IPC IPC(8): H02J7/02H01M10/44G05B19/04H02J7/00
CPCY02E60/12Y02E60/10
Inventor 宾建华
Owner HUAWEI DEVICE (SHENZHEN) CO LTD