Universal power supply apparatus
First Claim
1. An universal power supply apparatus, comprising:
- a tip that is attachable and detachable, wherein the tip comprises a select pin for selecting a voltage, a tip input terminal and a tip output terminal;
a main unit having a voltage converter, an input terminal, an output terminal, and an output select unit for converting a divided value of a reference voltage according to a state of a select stage included in the select pin of the tip; and
a cable for connecting the tip and the main unit.
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Accused Products
Abstract
The present invention relates to an universal power supply apparatus wherein the power suitable for various kinds of portable electronic devices having different shapes and voltages of power input terminals is selectively supplied, and a power supply apparatus wherein a supplied voltage can be changed with only selection of a tip suitable for a portable electronic device. The power supply apparatus of the present invention includes a main unit having an electronic circuit for converting a received voltage, a cable, and a tip having a select pin. According to the present invention, as a desired power supply voltage is automatically adjusted by selecting a proper tip according to a subject electronic device, a manufacture cost is reduced. Further, as the power supply apparatus of the present invention can be used for various kinds of portable electronic devices by exchanging a tip, its operation is very easy.
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Citations
28 Claims
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1. An universal power supply apparatus, comprising:
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a tip that is attachable and detachable, wherein the tip comprises a select pin for selecting a voltage, a tip input terminal and a tip output terminal; a main unit having a voltage converter, an input terminal, an output terminal, and an output select unit for converting a divided value of a reference voltage according to a state of a select stage included in the select pin of the tip; and a cable for connecting the tip and the main unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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8. The universal power supply apparatus as claimed in claimed 1, wherein the universal power supply apparatus operates as an external type battery pack in which a battery and a battery control circuit are connected to the input terminal of the main unit.
Specification