USB intelligent charger power source
A technology of intelligent charger and power supply, applied in the direction of collector, battery circuit device, electric vehicle, etc., can solve the problem that the charger cannot charge the mobile device, the device can not be charged, and the original line cannot be used.
Inactive Publication Date: 2015-01-28
SHENZHEN GUOWEIYUAN TECH
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AI Technical Summary
Problems solved by technology
[0003] 1. Existing various chargers cannot recognize various mobile phones / IPAD tablets and provide corresponding charging current;
[0004] 2. The charger cannot directly charge the mobile device. For example, the ordinary charger cannot charge the Blackberry mobile phone or the charging current provided is less than the rated current required by the mobile device, and the charging time needs to be extended;
[0005] 3. In the multi-interface application mode: the original cable cannot be used to charge the device, and a device needs at least two connecting cables: one for charging and one for data transmission
Method used
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Embodiment Construction
[0016] The USB smart charger power supply of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] As shown in the figure, the USB smart charger power supply of the present invention includes a power input terminal, the power input terminal is connected to an EMI circuit, the EMI circuit is connected to a primary rectification filter circuit, and a lightning protection circuit is connected in series between the EMI circuit and the primary rectification filter circuit The primary rectification filter circuit is connected to the PWM circuit, the PWM circuit is also connected to the PWM feedback control circuit, the output terminal of the PWM circuit is connected to the synchronous rectification output circuit (voltage output circuit), and the secondary rectification filter circuit is connected in series between the PWM circuit and the synchronous rectification output circuit ;The synchronou...
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The invention discloses a USB intelligent charger power source. The USB intelligent charger power source comprises a power source input end, wherein the power source input end is connected with an EMI circuit, the EMI circuit is connected with a primary rectifier and filter circuit, the primary rectifier and filter circuit is connected with a PWM circuit, the PWM circuit is further connected with a PWM feedback control circuit, the output end of the PWM circuit is connected with a synchronous rectifier output circuit, the output end of the synchronous rectifier output circuit is connected with an output voltage detection circuit, the output end of the output voltage detection circuit is connected with an output voltage adjustment circuit, and the output voltage adjustment circuit is connected with the synchronous rectifier output circuit. After the structure is adopted, the USB intelligent charger power source has the function of intelligent identification and detection, can provide rated current needed by mobile equipment for charging the mobile equipment and largely shortens the time for fully charging a battery. An original wire is used for charging the equipment or copping data, an additional interface or an additional connecting wire is not needed, application is simplified, and the USB intelligent charger power source is convenient to carry, simple and practical, improves experience of customers and reduces the cost.
Description
technical field [0001] The invention relates to a charging device, in particular to a USB smart charger power supply. Background technique [0002] With the increase of electronic products, there are various types of existing chargers to meet the charging needs of various electronic products, but the following defects generally exist in the existing ones: [0003] 1. Existing various chargers cannot recognize various mobile phones / IPAD tablets and provide corresponding charging current; [0004] 2. The charger cannot directly charge the mobile device. For example, the ordinary charger cannot charge the Blackberry mobile phone or the charging current provided is less than the rated current required by the mobile device, and the charging time needs to be extended; [0005] 3. In the multi-interface application mode: the original cable cannot be used to charge the device, and a device needs at least two connecting cables: one for charging and one for data transmission. C...
Claims
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Inventor 叶国华
Owner SHENZHEN GUOWEIYUAN TECH