Data card self-adapting power supply method and system

A power supply method and power supply system technology, applied in the direction of data processing power supply, measuring device, measurement flow/mass flow, etc., can solve the problems of increasing cost, lack of self-adaptive adjustment features, increasing system design complexity, etc., to achieve relaxation of choices range, the effect of simplifying system design

Inactive Publication Date: 2009-07-08
WUXI POWER SUPPLY JIANGSU PROVINCE ELECTRIC POWER
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Problems solved by technology

Although the method mentioned in this patent application can achieve the purpose of current limiting, the devices involved need to add auxiliary devices such as processors, digital-to-analog, and analog-to-digital conversion devices in addition to DC / DC (Direct Current) DC power converters. , because the device is a separate addition to the product, which increases the complexity of the system design and increases the cost
[0007] Another way to achieve current limiting is to start from the power conversion system and make the power conversion system have a current limiting function. For this purpose, it is necessary to find a suitable DC power converter with a current limiting function and a relatively high conversion efficiency. Although it can Realize the current limiting function, but lack the feature of adaptive adjustment

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  • Data card self-adapting power supply method and system
  • Data card self-adapting power supply method and system
  • Data card self-adapting power supply method and system

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Embodiment Construction

[0033] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0034] Hereinafter, the present invention will be specifically described mainly by using a data card power supply method and system based on a PCMCIA interface of a notebook computer. In addition, it can be understood that the power supply method and system of the present invention can also be used in other data cards than notebook computers (such as mobile phones). Specifically, the system and method of the present invention provide power for power amplifier systems that have burst mode operating characteristics and use TDMA (TIME DIVISION MULTIPLE ACESS) standard work or other non-burst mode operating characteristics, using WCDMA, CDMA and other standard load powe...

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Abstract

The invention discloses an adaptive power supply method and system for a data card. Wherein, the system includes: a power conversion system for converting the input voltage of the data card so that the voltage conforms to the working voltage range of the power amplifier load of the data card; a charging management system, and the power conversion system The connection is used to adjust the threshold voltage so that the output voltage of the power conversion system meets the constant current working conditions of the charging management system; the data card baseband system is used to control whether the charging management system adaptively adjusts power supply parameters. The present invention makes full use of the hardware resources and software resources carried by the data card itself to realize the current limiting control, does not need any additional device, and simplifies the system design.

Description

technical field [0001] The invention relates to a data card power supply technology, in particular to a data card self-adaptive power supply method and system. Background technique [0002] Among the consumer electronics products, there is a category of products based on the PCMCIA interface of notebook computers, such as: data cards, card modems, etc. One thing these products have in common is that their power supply systems are all based on the PCMCIA (PERSONAL COMPUTER MEMORY CARD INTERNATIONAL ASSOCIATION) interface. According to the power supply standard of the PCMCIA interface, its power output generally does not exceed 3 watts. Under a certain output voltage, the supply current of this interface is limited. [0003] For those TDMA transmission systems, when the transmitter is in the burst mode signal transmission state, the power amplifier will instantly absorb a large peak current, although the duration is only a short time slot or a few time slots. It occupies a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/26
Inventor 毛建华索江波张建华禹忠
Owner WUXI POWER SUPPLY JIANGSU PROVINCE ELECTRIC POWER
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