DC-DC converting charging apparatus

A charging device and recharging technology, applied in the direction of converting DC power input to DC power output, output power conversion device, collector, etc., can solve problems such as not pointing out, voltage peak exceeding, etc.
CN1592996AInactive Publication Date: 2005-03-09INFINEON TECH AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INFINEON TECH AG
Publication Date
2005-03-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a method of charging a rechargeable device and a charging apparatus wherein the rechargeable device is connected to a battery connection port and ground, an external DC source having an input voltage is connected to an input resistor of a charging apparatus, a current reference value and a voltage reference value are fed to a control unit, a duty cycle (d) is determined in accordance with the current reference value and the voltage reference value fed to the control unit, and using the duty cycle (d), an output voltage applied to the rechargeable device is switched between a minimum output voltage and a maximum output voltage dependent on the current reference value an the voltage reference value by means of a charging switch.
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Description

technical field

[0001] The present invention relates to a direct current-direct current (DC-DC) converter, especially a direct current-direct current converter using an RC filter. Background technique

[0002] DC-DC converters are described in detail in eg "Daniel M. Mitchell, DC-DC stitching Regulator Analysis, McGraw Hill 1988".

[0003] The converter is commercially available, eg, from HN Electronic Components GmbH, Langenselbold, so its function is easily explained. Additionally, it is available from sites such as http: / / www.techno-project.de The Technoproject obtains this converter. Current DC-DC converters have many applications, for example, in combination with charging devices for mobile phones.

[0004] Energy management is a fundamental problem in portable electronic devices. This problem exists in all the elements that facilitate the portability of the device and affects the durability, duration, size and weight of the device.

[0005] Traditional charging e...

Claims

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