Dual charging cell power supply apparatus for mobile communication terminal

A mobile communication terminal and rechargeable battery technology, applied in the field of power supply, can solve problems such as no backup battery, difficult judgment for users, and no charging conditions

Inactive Publication Date: 2005-06-29
刘宝忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But all there are some problems in the single rechargeable battery system of mobile communication terminal at present, as: 1, the optimal charging time of rechargeable battery (lithium battery or nickel-metal hydride battery) is when its electric quantity is used up substantially, and the user feels very Difficult to judge; 2. Since the power consumption of the mobile communication terminal changes at any time, it is diff

Method used

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  • Dual charging cell power supply apparatus for mobile communication terminal

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specific Embodiment approach 1

[0005] Specific implementation mode one: combine figure 1 Describe this embodiment, it is by CPU control circuit 1, the first charging switch circuit 2, the first power supply switch circuit 3, the second charge switch circuit 4, the second power supply switch circuit 5, the first rechargeable battery 6, the second rechargeable battery 7 components; the charging power detection terminal of the CPU control circuit 1, the charging power input terminal of the first charging switch circuit 2 and the charging power input terminal of the second charging switching circuit 4 are connected and connected to the positive output terminal of the charger 8, and the CPU controls The ground terminal of the circuit 1 is connected to the negative output terminal of the charger 8, the first charging control signal output terminal of the CPU control circuit 1 is connected to the control signal input terminal of the first charging switch circuit 2, and the second charging control signal output term...

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Abstract

A double charged battery supply device for communication terminals power detection end of 1, the input end of 2 are connected with the input end of 4 and connected with the positive output end of 8, the first signal output end of 1 is connected with the control signal input end of 2, the second signal output end of 1 is connected with the control signal input end of 4, the input end of the first voltage detection input end of 1, output end of 2, the input of 3 are connected with the positive of 6, the second voltage test input end of 1, the output of 4, input of 5 are connected with the positive of 7, the negative of 6, 7 are linked to the earth, the output of the first control signal is connected with the input of 3, the second output end of 1 is linked to the input of 5, the output of 3 with output of 5, the earth ends of 2 and 3 are connected with the negative end of 6, and those of 4 and 5 are connected with the negative of 7.

Description

Technical field: [0001] The invention relates to the field of power supply technology, in particular to a dual rechargeable battery power supply device for a mobile communication terminal. Background technique: [0002] When mobile communication terminal (GSM mobile phone, CDMA mobile phone, PHS etc.) is used, often run into the situation that rechargeable battery has no electricity, and rechargeable battery will be charged in time. But all there are some problems in the single rechargeable battery system of mobile communication terminal at present, as: 1, the optimal charging time of rechargeable battery (lithium battery or nickel-metal hydride battery) is when its electric quantity is used up substantially, and the user feels very Difficult to judge; 2. Since the power consumption of the mobile communication terminal changes at any time, it is difficult to judge when the rechargeable battery in the mobile communication terminal is exhausted. When it is found that the recha...

Claims

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Application Information

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IPC IPC(8): H04M1/02H01M10/42
CPCY02E60/10
Inventor 刘宝忠
Owner 刘宝忠
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