Charger

A charger and overcharge protection circuit technology, which is applied in the field of chargers with a reminder function, can solve problems such as the impact of battery life, and achieve the effects of strengthening protection functions, prolonging service life, and reducing use

Inactive Publication Date: 2009-10-21
WUJIANG JINDA PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The charging and discharging range of the battery is the safest within 3.6V-4.2V, 3.0-3.6, 4.2-4.5 will not have the risk of explosion, but it will have a certain impact on battery life

Method used

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Embodiment Construction

[0009] Below in conjunction with accompanying drawing, the present invention is further described: in the overcharge protection circuit 1, there is an audible and visual alarm system 3 connected in series. When the light alarm system is triggered, a signal will be sent out to remind the outside world through sound and light signals. The charging and discharging range of the battery is the safest within 3.6V-4.2V, 3.0V-3.6V, 4.2V-4.5V will not have the danger of explosion, but it will have a certain impact on the battery life. When it is 3.6V, it prompts that the battery is insufficient or even automatically shuts down, and the charger controls the charger to charge to 4.2V.

[0010] The beneficial effect of the present invention is to further strengthen the protection function of the protection circuit, which can not only reduce the timely reminder to people when the over-protection is incomplete, but also reduce the use of the over-protection circuit, prolong the service life...

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PUM

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Abstract

The invention provides a charger which essentially consists of a rectifier, a switch, voltage transformer, rectifier, filter, voltage regulator and a feedback unit. An audio and video alarm system is serially connected in an overcharge protection circuit, when the voltage is charged fully, the circuit is jumped into the overcharge protection circuit automatically, simultaneously the audio and video alarm system is turned on so as to remind through audio and video signals. The charger has obvious effects that the protection function of the protection circuit is further strengthened, thereby not only reminding people in time when the overprotection is not complete, but also reducing the usage of the overcharge protection circuit so as to prolong the service life of batteries; in addition, the charger can reduce battery damage or dangerous of explosion caused by overcharge.

Description

technical field [0001] The invention relates to a charger, in particular to a charger with a reminder function. Background technique [0002] Charger, the English name Charger, usually refers to a device that provides energy for a power storage device. Chargers are widely used in various fields, especially in the field of life, they are widely used in common electrical appliances such as mobile phones and cameras. The charger is a static converter device that uses power electronic semiconductor devices to convert alternating current with constant voltage and frequency into direct current. The charger has a wide range of application prospects in the occasions where the battery is used as a working power source or a backup power source. There are many chargers, such as lead-acid battery chargers, testing and monitoring of valve-regulated sealed lead-acid batteries, nickel-cadmium battery chargers, nickel-metal hydride battery chargers, lithium-ion battery chargers, lithium-i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00G01R19/165
Inventor 周小生
Owner WUJIANG JINDA PRECISION MACHINERY
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