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

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

Example Embodiment

[0022] Example 1

[0023] As shown in 1, a charger with automatic power-off function includes an input terminal of 110V or 220V alternating current, an automatic power-off function module, a charging function module, a current detection function module, and an output terminal is a USB interface. Among them, the automatic power-off function module can realize the function of automatic power-off when fully charged or when the charging device is pulled away from the charger, and 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 equipment, the feedback current is converted into the control voltage through the circuit, the delay circuit is controlled to stop the power-off timing, and the delay circuit controls the thyristor ...

Example Embodiment

[0024] Example 2

[0025] like figure 2 As shown, a charger with automatic power-off function includes an input terminal of 110V or 220V alternating current, 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 touch the switch, the thyristor automatic power-off control unit is connected to the charger, and the delay line connected to the output end of the thyristor starts at the same time;

[0027] (2) Use the current feedback winding of the original charger's high-frequency transformer to form the current detection. Within 30 seconds of the delay line working, if the current sampling unit and the current detection unit detect the feedback current of the battery charging equipment, the feedback The current is converted into the control voltage through the line, the delay line is controlled to stop the power-off timing, and the delay line con...

Example Embodiment

[0029] Example 3

[0030] (1) Lightly press the power-on tact switch, the thyristor automatic power-off control unit turns on the charger, and the delay line starts at the same time;

[0031] (2) Use the current feedback winding of the original charger high-frequency transformer to form the current detection. Within 1 minute of the delay line working, if the current sampling unit and the current detection unit detect the feedback current of the battery charging equipment, the feedback current After the line is converted to control voltage, the delay line is controlled to stop the power-off timing, and the delay line controls the thyristor automatic power-off control unit to continue to connect the charger to work. If there is no plugged electronic device for charging, the delay line unit will work for 1 minute. After that, it will stop working, the thyristor automatic power-off control unit is disconnected, and the charger can automatically power off.

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PUM

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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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