Universal power supply apparatus

• US 20060163948A1
• Filed: 04/20/2004
• Published: 07/27/2006
• Est. Priority Date: 03/18/2004
• Status: Active Grant

• Current Assignee: Smart Power Solutions, Inc.
• Original Assignee: Smart Power Solutions, Inc.
• Inventors: Kim, Hyun-Jun, Youn, Dae-Young
• Granted Patent: US 7,377,805 B2
• Time in Patent Office: Days
• US Class Current: 307/18
• CPC Class Codes: H01R 13/6675 with built-in power supply
• CPC Class Codes: H01R 13/6691 with built-in signalling means H01R13/717 takes precedence
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/28 Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
• CPC Class Codes: H01R 29/00 Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
• CPC Class Codes: H01R 31/065 with built-in electric apparatus
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02M 1/10 Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc

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.

Claims

1. An universal power supply apparatus, comprising:

an tip 400 that is attachable and detachable, wherein the tip comprises a select pin 420 for selecting a voltage, a tip input terminal 410 and a tip output terminal 430;

a main unit 100 having a voltage converter 120, an input terminal 110, an output terminal 130, and an output select unit 200 for converting a divided value of a reference voltage according to a state of a select stage included in the select pin 420 of the tip; and

a cable 300 for connecting the tip and the main unit.

2. The universal power supply apparatus as claimed in claim 1, wherein the tip 400 is exchanged according to a desired select voltage.

3. The universal power supply apparatus as claimed in claim 1, wherein the tip 400 further comprises a select information display unit 440 for displaying selection of a tip.

4. The universal power supply apparatus as claimed in claim 3, wherein the select information display unit 440 comprises a numerical information display unit 441 for displaying an adequate shape and voltage to a DC input terminal of an electronic device, and a color information display unit 442 for displaying color.

5. The universal power supply apparatus as claimed in claim 1, wherein a first voltage selected by the change of the select pin is 15 to 16 volts, a second voltage is 18 to 20 volts, and a use power is 60 to 90 watts.

6. The universal power supply apparatus as claimed in claim 1, wherein a first voltage condition selected by the change of the select pin is 4 to 5 volts, a second voltage condition is 9 to 10 volts, a third voltage condition is 12 to 15 volts, and a use power is 5 to 24 watts.

7. The universal power supply apparatus as claimed in claim 1, wherein the universal power supply apparatus operates as a DC/DC adaptor using the DC power as an input power to the main unit 100.

8. The universal power supply apparatus as claimed in claim 1, wherein the universal power supply apparatus operates as an external type battery pack in which a battery 102 and a battery control circuit 103 are connected to the input terminal of the main unit 100.

9. The universal power supply apparatus as claimed in claim 1, wherein the universal power supply apparatus operates as an AC/DC adaptor using the AC power as an input power to the main unit.

10. The universal power supply apparatus as claimed in claim 1, wherein the voltage converter 120 comprises a PWM control IC 121 being one of components of a SMPS circuit, a FET Q being a switching device, a diode D, an inductor or a transformer L, and condensers Cin and Cout for smoothing voltages at input and output sides.

11. The universal power supply apparatus as claimed in claim 2, wherein a first voltage selected by the change of the select pin is 15 to 16 volts, a second voltage is 18 to 20 volts, and a use power is 60 to 90 watts.

12. The universal power supply apparatus as claimed in claim 3, wherein a first voltage selected by the change of the select pin is 15 to 16 volts, a second voltage is 18 to 20 volts, and a use power is 60 to 90 watts.

13. The universal power supply apparatus as claimed in claim 4, wherein a first voltage selected by the change of the select pin is 15 to 16 volts, a second voltage is 18 to 20 volts, and a use power is 60 to 90 watts.

14. The universal power supply apparatus as claimed in claim 2, wherein a first voltage condition selected by the change of the select pin is 4 to 5 volts, a second voltage condition is 9 to 10 volts, a third voltage condition is 12 to 15 volts, and a use power is 5 to 24 watts.

15. The universal power supply apparatus as claimed in claim 3, wherein a first voltage condition selected by the change of the select pin is 4 to 5 volts, a second voltage condition is 9 to 10 volts, a third voltage condition is 12 to 15 volts, and a use power is 5 to 24 watts.

16. The universal power supply apparatus as claimed in claim 4, wherein a first voltage condition selected by the change of the select pin is 4 to 5 volts, a second voltage condition is 9 to 10 volts, a third voltage condition is 12 to 15 volts, and a use power is 5 to 24 watts.

17. The universal power supply apparatus as claimed in claim 2, wherein the universal power supply apparatus operates as a DC/DC adaptor using the DC power as an input power to the main unit 100.

18. The universal power supply apparatus as claimed in claim 3, wherein the universal power supply apparatus operates as a DC/DC adaptor using the DC power as an input power to the main unit 100.

19. The universal power supply apparatus as claimed in claim 4, wherein the universal power supply apparatus operates as a DC/DC adaptor using the DC power as an input power to the main unit 100.

20. The universal power supply apparatus as claimed in claim 2, wherein the universal power supply apparatus operates as an external type battery pack in which a battery 102 and a battery control circuit 103 are connected to the input terminal of the main unit 100.

21. The universal power supply apparatus as claimed in claim 3, wherein the universal power supply apparatus operates as an external type battery pack in which a battery 102 and a battery control circuit 103 are connected to the input terminal of the main unit 100.

22. The universal power supply apparatus as claimed in claim 4, wherein the universal power supply apparatus operates as an external type battery pack in which a battery 102 and a battery control circuit 103 are connected to the input terminal of the main unit 100.

23. The universal power supply apparatus as claimed in claim 2, wherein the universal power supply apparatus operates as an AC/DC adaptor using the AC power as an input power to the main unit.

24. The universal power supply apparatus as claimed in claim 3, wherein the universal power supply apparatus operates as an AC/DC adaptor using the AC power as an input power to the main unit.

25. The universal power supply apparatus as claimed in claim 4, wherein the universal power supply apparatus operates as an AC/DC adaptor using the AC power as an input power to the main unit.

26. The universal power supply apparatus as claimed in claim 2, wherein the voltage converter 120 comprises a PWM control IC 121 being one of components of a SMPS circuit, a FET Q being a switching device, a diode D, an inductor or a transformer L, and condensers Cin and Cout for smoothing voltages at input and output sides.

27. The universal power supply apparatus as claimed in claim 3, wherein the voltage converter 120 comprises a PWM control IC 121 being one of components of a SMPS circuit, a FET Q being a switching device, a diode D, an inductor or a transformer L, and condensers Cin and Cout for smoothing voltages at input and output sides.

28. The universal power supply apparatus as claimed in claim 4, wherein the voltage converter 120 comprises a PWM control IC 121 being one of components of a SMPS circuit, a FET Q being a switching device, a diode D, an inductor or a transformer L, and condensers Cin and Cout for smoothing voltages at input and output sides.