Adapter and charging method
AssigneesGuangdong Oppo Mobile Telecommunications Corp., Ltd., Powerland Technology Inc.
InventorsChen Tian, Feng Ji, Jialiang Zhang
Life of this patent
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Abstract
Provided are an adapter and a charging method. The adapter includes: at least one filter capacitor (210) having a capacitance smaller than a predetermined threshold and configured to filter a rectified alternating current to obtain a pulsating direct current; and a voltage transformation module (220) configured to transform the pulsating direct current to obtain a voltage and a current for charging a device to be charged. The adapter for charging a battery is provided, the volume of the adapter can be reduced and the miniaturization of the volume of the adapter can be realized.
Claims20
An adapter, comprising:
- at least one filter capacitor having a capacitance smaller than a predetermined threshold and configured to filter a rectified alternating current to obtain a pulsating direct current;
- and
- a voltage transformation module configured to transform the pulsating direct current to obtain a voltage and a current for charging a device to be charged;
- wherein the voltage transformation module comprises:
- a switch module and a transformer, and wherein the adapter further comprises:
- a first detection module configured to detect a voltage and/or a current of the pulsating direct current;
- and
- a control module configured to control a switch-on time of the switch module based on a detection result of the voltage and/or the current of the pulsating direct current, to control output power of the transformer;
- wherein the adapter further comprises:
- an operational amplification module configured to convert a voltage value of the pulsating direct current into a current value, wherein the operational amplification module has one end connected to an output end of the at least one capacitor, and another end thereof connected to the first detection module,
- wherein the control module is further configured to:
- control the switch-on time of the switch module based on the current value, to control the output power of the transformer.
A charging method, applied to an adapter comprising at least one filter capacitor and a transformation module, the method comprising:
- filtering a rectified alternating current to obtain a pulsating direct current;
- and
- transforming the pulsating direct current to obtain a voltage and a current for charging a device to be charged;
- wherein the adapter further comprises a first detection module and a control module, and wherein the transformation module comprises a switch module and a transformer, the method further comprising:
- detecting a voltage and/or a current of the pulsating direct current;
- and
- controlling a switch-on time of the switch module based on a detection result of the voltage and/or the current of the pulsating direct current, to control output power of the transformer;
- wherein the adapter further comprises an operational amplification module, the operational amplification module having one end connected to an output end of the at least one capacitor and another end connected to the first detection module, the method further comprising converting a voltage value of the pulsating direct current into a current value,
- wherein said controlling the switch-on time of the switch module based on the detection result of the voltage and/or the current of the pulsating direct current comprises:
- controlling the switch-on time of the switch module based on the current value.
A computer-readable storage medium, having computer-executable instructions stored thereon, wherein the computer-executable instructions are configured to implement a charging method, applied to an adapter comprising at least one filter capacitor and a transformation module, the method comprising:
- filtering a rectified alternating current to obtain a pulsating direct current;
- and
- transforming the pulsating direct current to obtain a voltage and a current for charging a device to be charged-;
- wherein the adapter further comprises a first detection module and a control module, and wherein the transformation module comprises a switch module and a transformer, the method further comprising:
- detecting a voltage and/or a current of the pulsating direct current;
- and
- controlling a switch-on time of the switch module based on a detection result of the voltage and/or the current of the pulsating direct current, to control output power of the transformer;
- wherein the adapter further comprises an operational amplification module, the operational amplification module having one end connected to an output end of the at least one capacitor and another end connected to the first detection module, the method further comprising converting a voltage value of the pulsating direct current into a current value,
- wherein said controlling the switch-on time of the switch module based on the detection result of the voltage and/or the current of the pulsating direct current comprises:
- controlling the switch-on time of the switch module based on the current value.
Dependencies are inferred from the claim text.