DRIVING SYSTEM AND METHOD FOR A PORTABLE 3.5 INCH EXTERNAL HARD DISK WITHOUT USING AN EXTERNAL POWER
First Claim
1. A driving system for a portable 3.5 inch external hard disk without using an external power, comprising:
- a first power supply module installed in the portable 3.5 inch external hard disk, wherein the first power supply module comprises a first voltage source which generates a start current supplying power to a main circuit, or wherein the first power supply module comprises a second boost circuit generating a start current to supply power to the main circuit;
a second power supply module, comprising a second voltage source, wherein the second voltage source generates a first voltage and a second voltage through a first interface output port and a second interface output port, respectively, and the first voltage and the second voltage are combined to form a voltage which supplies power to a first boost circuit, so that the first boost circuit outputs a first working current to a start circuit; and
the portable 3.5 inch external hard disk, comprising a start circuit and the main circuit electrically connected to the first power supply module and the second power supply module, respectively, so that the start circuit starts the portable 3.5 inch external hard disk through the start current outputted by the first power supply module, and the main circuit performs data accessing through the first working current outputted by the second power module to the start circuit.
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Accused Products
Abstract
A driving system and a driving method for a portable 3.5 inch external hard disk are disclosed. The driving system includes a first power supply module, a second power supply module and the portable 3.5 inch external hard disk. The first power supply module installed in the portable 3.5 inch external hard disk includes a first voltage source having a first output voltage supplies power to a main circuit. The second power supply module includes a second voltage source outputting a first voltage and a second voltage through a first interface output port and a second interface output port, respectively, which are combined to form a second output voltage to supply power to a boost circuit. The boost circuit then outputs a working current to provide to a start circuit, which replaces the first power supply module and hence maintains operation of the external hard disk.
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Citations
22 Claims
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1. A driving system for a portable 3.5 inch external hard disk without using an external power, comprising:
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a first power supply module installed in the portable 3.5 inch external hard disk, wherein the first power supply module comprises a first voltage source which generates a start current supplying power to a main circuit, or wherein the first power supply module comprises a second boost circuit generating a start current to supply power to the main circuit; a second power supply module, comprising a second voltage source, wherein the second voltage source generates a first voltage and a second voltage through a first interface output port and a second interface output port, respectively, and the first voltage and the second voltage are combined to form a voltage which supplies power to a first boost circuit, so that the first boost circuit outputs a first working current to a start circuit; and the portable 3.5 inch external hard disk, comprising a start circuit and the main circuit electrically connected to the first power supply module and the second power supply module, respectively, so that the start circuit starts the portable 3.5 inch external hard disk through the start current outputted by the first power supply module, and the main circuit performs data accessing through the first working current outputted by the second power module to the start circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A driving method for a portable 3.5 inch external hard disk without using an external power, comprising the steps of:
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providing a first power supply module configured within the portable hard disk, wherein the first power supply module comprises a first voltage source which generates an output start current, or wherein the first power supply module comprises a second boost circuit which generates a start current to supply power to a main circuit for starting the portable hard disk; providing a second power supply module comprising a second voltage source which outputs a first voltage and a second voltage through a first interface output port and a second interface output port, respectively, the first voltage and the second voltage are combined to form a voltage to a start circuit for supplying power to the main circuit, so that the second voltage source outputs a first working current, replaces the first voltage source and supplies stable current for the portable hard disk to provide disk accessing; electrically connecting the portable 3.5 inch external hard disk, wherein the portable 3.5 inch external hard disk comprises a start circuit and a main circuit which are electrically connected to the first power supply module and the second power supply module, respectively; starting the portable 3.5 inch external hard disk, wherein the start circuit starts the portable 3.5 inch external hard disk by the current outputted by the first voltage source; and performing data accessing to the main circuit, wherein the main circuit performs data accessing by the first working current provided by the second power supply module. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification