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Output voltage adjustable combined battery

A technology of combining batteries and outputting voltage, applied in the field of electronics

Inactive Publication Date: 2007-12-12
北京市世纪博纳能源技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a combined battery with adjustable output voltage for the current situation that the above-mentioned users cannot use one combined battery to provide multiple output voltages for multiple mobile electronic products under the environment of being separated from the mains power supply. External intervention, the user adjusts the output voltage of the battery to match the input voltage requirements of specific electronic products, thus meeting the need to use one battery to power multiple electronic products

Method used

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Examples

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Embodiment 1

[0027] Fig. 1 shows a schematic circuit diagram of a specific embodiment provided by the present invention. This embodiment includes a battery pack B, a DC-DC converter, a manual level regulator R, an inductor L, and a switch tube T.

[0028] The battery pack B is composed of 4 single-cell batteries in series and connected in parallel, and its output terminal is connected to the voltage input terminal of the DC-DC converter.

[0029] The inductance coil L is connected across the input and output terminals of the DC-DC converter, and the output terminal V 0 The two conductive ends of the switch tube T are connected to the ground.

[0030] The control terminal of the switch tube T is connected to the signal output terminal t of the DC-DC converter.

[0031] In actual use, the operating part of the manual potentiometer R is installed outside the assembled battery, and the output voltage value corresponds to the movement position of the operating part. The user can adjust the input vo...

Embodiment 2

[0033] Fig. 2 is a schematic circuit diagram of a preferred embodiment provided by the present invention. In this embodiment, three battery cells composed of two single-cell batteries connected in parallel form a battery pack B in series. The output terminal of the battery pack B is connected to the input terminal of the DC-DC converter MAX1771. Same as the first embodiment, the converter MAX1771 is also connected in parallel with an energy storage inductor L, and the output terminal V 0 The switch tube connected to the ground is a MOS tube Q.

[0034] In this embodiment, a single-chip microcomputer MSP430F133, a liquid crystal display, and a current signal acquisition and amplification circuit Y are added. 1 , Voltage signal acquisition and amplification circuit Y 2 Signal acquisition circuit composed of.

[0035] Current signal acquisition and amplification circuit Y 1 The tiny current signal is collected by the milliohm resistor Ra set at the negative potential output terminal ...

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Abstract

An adjustable output voltage combined device includes a battery set, a DC-DC converter, an induction coil, a switch tube and a potential regulation device. The input of the DC-DC converter is connected with the output of the battery set, the inductive coil is bridge-connected between the positive input and output of the converter, two conducting ends of the switch tube is connected between the positive and negative of the converter, its control end is linked to the signal output end of the converter, the signal output end of the potential regulation device is connected with the control signal input of the coveter. This invention converts the DC voltage to pulse voltage output and regulates voltage by altering pulse frequency to realize stepless regulation from single step battery voltage to the maximum output voltage.

Description

Technical field [0001] The invention relates to a battery, in particular to an assembled battery provided with a control circuit and capable of continuously adjusting the output voltage through external intervention. It belongs to the field of electronic technology. Background technique [0002] With the rapid development of modern electronic technology, the amount of information that people enjoy has rapidly expanded, and the changes in modern office and life patterns have made more mobile electronic products increasingly widely used by people. [0003] Most of the energy used by mobile electronic products comes from the batteries carried by the products themselves. Because batteries have extremely limited electric energy storage, the use time of mobile electronic products is limited to a certain extent. In order to extend the battery life as long as possible, manufacturers usually reserve an external power interface on the electronic products they produce, so that users can use...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02M3/00G01R31/36
Inventor 诸学农安杰邱新平张春玉
Owner 北京市世纪博纳能源技术有限责任公司
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