Universal power supply apparatus

• US 7,377,805 B2
• Filed: 04/20/2004
• Issued: 05/27/2008
• Est. Priority Date: 03/18/2004
• Status: Expired due to Fees

• Current Assignee: Smart Power Solutions, Inc.
• Original Assignee: Smart Power Solutions, Inc.
• Inventors: Kim, Hyun-Jun, Youn, Dae-Young
• Primary Examiner(s): NGUYEN, KHIEM M
• Application Number:
  US10/564,613
• Publication Number:
  US 20060163948A1
• Time in Patent Office: 1,498 Days
• Field of Search: 439500-504, 439/638, 439/668, 439/491, 307/18, 307 25- 26, 307 28- 29, 320/2, 320111-112, 323/225
• US Class Current: 439/502
• 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:

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.

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

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

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

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 comprises a PWM control IC being one of components of a SMPS circuit, a FET being a switching device, a diode, an inductor or a transformer, and condensers for smoothing voltages at unput 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.

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.

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.

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 and a battery control circuit are connected to the input terminal of the main unit.

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 and a battery control circuit are connected to the input terminal of the main unit.

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 and a battery control circuit are connected to the input terminal of the main unit.

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 comprises a PWM control IC being one of components of a SMPS circuit, a FET being a switching device, a diode, an inductor or a transformer, and condensers for smoothing voltages at input and output sides.

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

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

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.