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Charger with automatic cut-off function and using method thereof

An automatic power-off and charger technology, which is applied in current collectors, battery circuit devices, electric vehicles, etc., can solve problems such as potential safety hazards, and achieve the effects of reduced service life, no power consumption, and small size

Inactive Publication Date: 2015-11-18
傅友权
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention provides a charger product that automatically disconnects the power supply when fully charged or in standby, which solves these potential safety hazards and technical problems

Method used

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  • Charger with automatic cut-off function and using method thereof
  • Charger with automatic cut-off function and using method thereof
  • Charger with automatic cut-off function and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] As shown in 1, a charger with an automatic power-off function includes an input terminal of 110V or 220V AC, an automatic power-off function module, a charging function module, a current detection function module, and a USB interface at the output end. Among them, the automatic power-off function module can realize the function of automatic power-off when the charging device is fully charged or the charging device is removed from the charger. The charging function module can reduce the voltage to a suitable charging voltage, such as 5V; in addition, the high-frequency transformer current feedback winding and The current detection function module is connected. If the current detection function unit detects the feedback current of the battery charging device, the feedback current is converted into the control voltage through the line, and the delay line is controlled to stop the power-off timing, and the delay line controls the thyristor to automatically power off. The con...

Embodiment 2

[0025] Such as figure 2 As shown, a charger with an automatic power-off function includes an input terminal of 110V or 220V AC, an automatic power-off function module, a charging function module, a current detection function module, and an output function module.

[0026] (1) Lightly press the power on and lightly press the light touch switch, the thyristor automatic power-off control unit is connected to the charger, and the delay circuit connected to the output terminal of the thyristor is started at the same time;

[0027] (2) Use the current feedback winding of the original high-frequency transformer of the charger to form a current detection. Within 30 seconds of the delay circuit working, if the current sampling unit and the current detection unit detect the feedback current of the battery charging device, the feedback will be The current is transformed into the control voltage through the line, the delay line is controlled to stop the power-off timing, and the delay li...

Embodiment 3

[0030] (1) Lightly press the power-on light touch switch, the thyristor automatic power-off control unit is connected to the charger, and the delay circuit is started at the same time;

[0031] (2) Use the current feedback winding of the original high-frequency transformer of the charger to form the current detection. If the current sampling unit and the current detection unit detect the feedback current of the battery charging device within 1 minute of the delay circuit operation, the feedback current After the line is converted to the control voltage, the control delay line stops the power-off timing, the delay line controls the thyristor automatic power-off control unit and continues to connect the charger to work. If there is no plug-in electronic device for charging, the delay line unit works for 1 minute After that, it will stop working, the thyristor automatic power-off control unit is disconnected, and the charger can realize automatic power-off.

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Abstract

In the whole life cycle of mobile phone products, two thirds of power consumption comes from idle consumption caused by mobile phone chargers, namely, power consumption generated when a mobile phone is still plugged onto a socket after fully charged. In addition, if a charger is connected to a power supply for a long time, the service life of components will be reduced, the components will be heated easily, and hidden danger of fire will be caused. The invention provides a charger product which can be automatically disconnected from a power supply when a mobile phone is fully charged or in a standby state, and therefore, hidden danger and other technical problems are solved. The automatic cut-off mobile phone charger comprises an input end, an automatic cut-off function module, a charging function module, a delayed power-off control unit, a current detection function module, and an output end, wherein the input end, the automatic cut-off function module, the charging function module and the output end are connected in sequence, and the output end, the current detection function module and the automatic cut-off function module are connected in sequence.

Description

technical field [0001] The invention relates to the technical field of chargers for mobile phones, notebook computers, automobiles and electric bicycles, in particular to a charger with an intelligent automatic power-off function and a use method thereof. Background technique [0002] In recent years, with the rapid development of high technology, the functions of mobile phones are constantly updated, and people spend more and more time on mobile phones. At present, the charging amount of the mobile phone can be displayed in real time during the charging process, but the power cannot be automatically cut off after it is fully charged, so the mobile phone is often in an intermittent charging state for a long time. Mobile phone battery charging includes three links: resistance reduction, voltage reduction and rectification. Drag reduction is actually the process of storing energy. When the mobile phone is working, the battery discharges energy, and the battery resistance inc...

Claims

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Application Information

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IPC IPC(8): H02J7/00
Inventor 傅友权
Owner 傅友权
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