Connectors adapted for controlling a small form factor power supply

• US 6,091,611 A
• Filed: 09/04/1998
• Issued: 07/18/2000
• Est. Priority Date: 04/26/1994
• Status: Expired due to Term

• Current Assignee: Comarco Wireless Systems LLC (AppBrilliance, Inc.)
• Original Assignee: Comarco Wireless Technologies Incorporated (Comarco Incorporated)
• Inventors: Lanni, Thomas W.
• Primary Examiner(s): BERHANE, ADOLF D
• Application Number:
  US09/148,811
• Time in Patent Office: 683 Days
• Field of Search: 363/17, 363/20, 363/21, 363/24, 363/25, 363/78, 363/79, 363/80, 363/97, 363/98, 363/132, 363/141, 363/144, 323/212
• US Class Current: 363/79
• CPC Class Codes: H01R 13/24 resilient; resiliently-mounted
• CPC Class Codes: H01R 13/6675 with built-in power supply
• CPC Class Codes: H01R 2201/16 for telephony
• CPC Class Codes: H01R 2201/24 for radio transmission
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 7/00041 in response to measured battery parameters, e.g. voltage, current or temperature profile
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H02M 1/4258 using a single converter stage both for correction of AC input power factor and generation of a regulated and galvanically isolated DC output voltage H02M1/4241 takes precedence
• CPC Class Codes: H02M 3/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H02M 3/28 using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
• CPC Class Codes: H02M 3/3378 in a push-pull configuration of the parallel type H02M3/3374 takes precedence
• CPC Class Codes: H02M 3/3382 in a push-pull circuit arrangement
• CPC Class Codes: H02M 3/3387 in a push-pull configuration
• CPC Class Codes: H05K 1/16 incorporating printed electric components, e.g. printed resistor, capacitor, inductor
• CPC Class Codes: H05K 1/165 incorporating printed inductors
• CPC Class Codes: H05K 2201/086 for inductive purposes, e.g. printed inductor with ferrite core
• CPC Class Codes: H05K 2201/09063 Holes or slots in insulating substrate not used for electrical connections
• CPC Class Codes: Y02B 40/00 Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
• CPC Class Codes: Y02B 70/10 : Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

The subject matter disclosed herein relates to mechanisms for programming power supply circuitry for providing an appropriate current or voltage to powering portable devices or recharge batteries. More particularly, a power supply is coupled to a portable device of battery through a connector which is associated with the portable device or battery. The connecter includes resistive circuitry which is detectable at the power supply for programming the power supply to provide the appropriate voltage or current associated with the portable device or battery.

Claims

1. A connector capable of being coupled between a portable appliance and a power supply for transmitting a voltage and a current to the portable appliance, the connector comprising:

a first set of conductive pins adapted for coupling to a power terminal on the portable appliance to apply the voltage and current to the portable appliance;

a second set of conductive pins adapted for coupling to a terminal on the power supply to receive the voltage and current;

a plurality of conductors coupled between the first and second sets of conductive pins; and

one or more resistive elements, each resistive element coupled between two of the conductors, wherein

the one or more resistive elements have resistances which are detectable at the terminal of the power supply for programming the power supply to provide one of a current and a voltage which is suitable for at least one of powering operation of the portable appliance and recharging a rechargeable battery disposed within the portable appliance.

2. The connector of claim 1, the connector further including a cable which is capable of being coupled between the first and second sets of conductive pins, the cable having a plurality of wires to provide the plurality of conductors, wherein the first terminal is formed as part of a first terminal coupling which is detachable from the cable and the one or more resistive elements are disposed within the first terminal coupling.

3. The connector of claim 1, the connector further including a cable which is capable of being coupled between the first and second sets of conductive pins, wherein the second set of conductive pins is formed as part of a second terminal coupling which is detachable from the cable, and wherein the one or more resistive elements are disposed within the second terminal coupling.

4. The connector of claim 1, the connector further including:

a first resistive element having a resistance detectable at the terminal of the power supply for programming the power supply a set voltage to the portable appliance; and

a second resistive element having a resistance detectable at the terminal of the power supply for programming the power supply to apply a set current to the portable appliance.

5. The connectors of claim 4, wherein the portable appliance has an input power requirement of an input voltage and an input current, and wherein the set voltage is selected to be the input voltage and the set current is selected to be the input current.

6. A circuit for programming a power supply for transmitting a voltage and a current to a rechargeable battery in a portable appliance, the circuit comprising:

a plurality of conductors adapted for coupling to a terminal on the power supply;

a first battery conductor adapted for coupling to a first terminal of the rechargeable battery;

a second battery conductor adapted for coupling to a second terminal of the rechargeable battery; and

one or more resistive elements, each resistive element coupled between two of the conductors adapted for coupling to the terminal on the power supply, wherein

the one or more resistive elements have resistances which are detectable at the terminal of the power supply for programming the power supply to provide one of a set current through the first and second battery conductors and a set voltage across the first and second battery conductors.

7. The circuit of claim 6, the circuit further including:

a first resistive element having a resistance detectable at the terminal of the power supply for programming the power supply to apply a set voltage across the first and second battery conductors; and

a second resistive element having a resistance detectable at the terminal of the power supply for programming the power supply to apply a set current through one of the first and second battery conductors.

8. The circuit of claim 7, wherein the resistance of the first resistive element is selected to program the power supply to provide power to meet an input voltage requirement for a portable appliance and the resistance of the second resistive element is selected to program the power supply to provide power to meet an input current requirement for the portable appliance.

9. A circuit for programming a power supply for transmitting a voltage and a current to a power terminal of a portable appliance, the circuit comprising:

a first conductor adaptable for coupling to a first power pin at a power terminal of the portable appliance;

a second conductor adaptable for coupling to a second power pin at the power terminal of the portable appliance;

a third conductor adaptable for coupling to a first programming pin of the power supply; and

a first active device for providing one of a set current and a set voltage to the third conductor to program the power supply to apply one of a set current through at least one of the first and second conductors, and a set voltage across the first and second conductors.

10. The circuit of claim 9, the circuit further comprising:

a fourth conductor adaptable for coupling to a second programming pin of the power supply; and

a second active device for applying a voltage to the fourth conductor to program the power supply to apply a set voltage across the first and second terminals, wherein

the first active device provides a set current to the third conductor to program the power supply to apply a set current through the first and second terminals.

11. A connector capable of being coupled between a portable appliance and a power supply for transmitting a voltage and a current to the portable appliance, the connector comprising:

a first set of conductive pins adapted for coupling to a power terminal on the portable appliance to apply the voltage and current to the portable appliance;

a second set of conductive pins adapted for coupling to a terminal on the power supply to receive the voltage and current;

a plurality of conductors coupled between the first and second sets of conductive pins; and

a first active device for providing one of a set current and a set voltage to at least one of the conductive pins of the second set of conductive pins to program the power supply to apply one of a set current through at least one of the conductive pins of the first set of conductive pins, and a set voltage across two of the conductive pins of the first set of conductive pins.

12. A method for programming a programmable power supply to provide one of a set voltage and a set current to a portable appliance, the method comprising:

coupling a first terminal of a connector to the power supply, the first terminal having a plurality of conductive pins adapted for coupling to the power supply;

coupling a second terminal of the connector to a power terminal of the portable appliance, the second terminal having a plurality of conductive pins adapted for coupling to a power terminal of the portable appliance, the connector including conductors for coupling between at least some of the conductive pins of the first terminal and some of the conductive pins of the second terminal;

providing a one or more resistive elements to be coupled between two of the conductors; and

detecting the resistance of at least one of the resistive elements at the power supply to program the power supply to provide one of a set current and a set voltage which is suitable for at least one of powering operation of the portable appliance and recharging a rechargeable battery disposed within the portable appliance.

13. The method of claim 12, the method further including:

providing a first resistive element having a resistance detectable at the terminal of power supply for programming the power supply to apply a set voltage to the portable appliance; and

providing a second resistive element having a resistance detectable at the terminal of the power supply for programming the power supply for programming the power supply to apply a set current to the portable appliance.

14. The method of claim 13, the method further including:

detecting the resistance of the first resistive element for programming the power supply to provide the set voltage to the portable appliance to meet an input voltage requirement for the portable appliance; and

detecting the resistance of the second resistive element for programming the power supply to provide the current voltage to the portable appliance to meet an input requirement for the portable appliance.

15. A method for programming a programmable power supply to provide one of a set voltage and a set current to a portable appliance, the method comprising:

coupling a first terminal of a connector to the power supply, the first terminal having a plurality of conductive pins adapted for coupling to the power supply;

coupling a second terminal of the connector to a power terminal of the portable appliance, the second terminal having a plurality of conductive pins adapted for coupling to a power terminal of the portable appliance, the connector including conductors for coupling between at least some of the conductive pins of the first terminal and some of the conductive pins of the second terminal; and

providing one of a set voltage and a set current from an active device formed in the connector to at least one of the conductive pins of the first terminal to program the power supply to provide one of a set current and a set voltage which is suitable for at least one of powering operation of the portable appliance and recharging a rechargeable battery disposed within the portable appliance.

16. A connector capable of being coupled between a corresponding portable appliance and a power supply for transmitting a voltage and a current to the portable appliance, the portable appliance having an input voltage requirement and input current requirement, the connector comprising:

a first set of conductive pins adapted for coupling to a power terminal on the portable appliance to apply the voltage and current to the portable appliance;

a second set of conductive pins adapted for coupling to a terminal on the power supply to receive the voltage and current;

voltage programming circuitry capable of communicating with the power supply for programming the power supply to provide power at the second set of conductive pins to substantially meet the input voltage requirement; and

current programming circuitry capable of communicating with the power supply for programming the power supply to provide the power at the second set of conductive pins to substantially meet the input current requirement.

17. The connector of claim 16, wherein the corresponding portable appliance is one of a portable computer, a telephone, a printer, a game system and a video device.

18. The connector of claim 16, wherein the voltage programming circuitry includes a first resistive element having a resistive detectable at the power supply for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input voltage requirement, and wherein the current programming circuitry includes a second resistive element having a resistance detectable at the power supply for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input current requirement.

19. The connector of claim 16, wherein the voltage programming circuitry includes a first active device for transmitting a first signal to the power for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input voltage requirement and the current programming circuitry includes a second active device for transmitting a second signal to the power supply for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input current requirement.

20. The connector of claim 16, wherein the connector includes a microprocessor for programming the power supply to provide the power to the corresponding portable appliance to substantially meet the input voltage requirement and the input current requirement.

21. The connector of claim 16, wherein the connector is adapted to be coupled between the corresponding portable appliance and a cable coupled to the power supply, the connector being detachable from the cable.

22. The connector of claim 16, wherein the connector is attachable between the power supply and a cable coupled to the portable appliance.

23. The connector of claim 16, wherein the connector includes a first terminal for mating an output terminal of the power supply, a second terminal for mating with the corresponding portable appliance and a cable portion coupled between the first and second terminals.

24. A system for providing power to any one of a plurality of portable appliances, each of the portable appliances having an associated input voltage requirement and an associated input current requirement, the system comprising:

a power supply having an output power terminal; and

a plurality of connectors, each connector corresponding to one of the plurality of portable appliances and being capable of coupling between an input power terminal of the corresponding portable appliance and the output power terminal of the power supply, each of the connectors having voltage programming circuitry capable of communicating with the output terminal of the power supply for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input voltage requirement associated with corresponding portable appliance, and current programming circuitry for communicating with the power supply for programming the power supply to provide the power to the corresponding portable appliance to substantially meet the input current requirement associated with the corresponding portable appliance.

25. The system of claim 24, wherein the plurality of portable appliances includes at least two devices selected from a portable computer, a telephone, a printer, a video device and a game system.

26. The system of claim 24, wherein the plurality of portable appliances includes at least portable computer and a telephone.

27. The system of claim 24, wherein the voltage programming circuitry includes a first resistive element having a resistance detectable at the power supply for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input voltage requirement associated with the corresponding portable appliance, and the current programming circuitry includes a second resistive element having a resistance detectable at the power supply for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input current requirement associated with the corresponding portable appliance.

28. The system of claim 24, wherein the voltage programming circuitry includes a first active device for transmitting a signal to the power for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input voltage requirement associated with the corresponding portable appliance, and the current programming circuitry includes a second active device transmitting a signal to the power supply for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input current requirement associated with the corresponding portable appliance.

29. The system of claim 24, wherein each connector includes a microprocessor for programming the power supply to provide the power to the corresponding portable appliance to substantially meet the input voltage requirement and the input current requirement associated with the corresponding portable appliance.

30. The system of claim 24, the system further including a cable for coupling the output power terminal of the power supply to any one of the plurality of connectors, wherein each of the connectors is attachable between a corresponding portable appliance and the cable, and each of the connectors is detachable from the cable.

31. The system of claim 24, the system further including a cable for coupling between any one of t he connectors and its corresponding portable appliance, wherein each of the connectors is attachable between the output terminal of the power supply and cable.

32. The system of claim 24, wherein each of the connectors includes a cable portion and first terminal for mating with the output terminal of the power supply and a second terminal for mating with the corresponding portable appliance

33. The method of providing power to a selected one of a plurality of portable appliances from an output terminal of a power supply, each of the portable appliances having an associated input voltage requirement and a corresponding input current requirement, the method comprising:

selecting one of a plurality of connectors corresponding with the selected portable appliance, each connector corresponding with one of plurality of portable appliances and being capable of coupling between an input power terminal of the corresponding portable appliance and the output power terminal of the power supply, each of the connectors having voltage programming circuitry capable of communicating with the output terminal of the power supply for programming the power supply to provide power to the corresponding portable appliance to substantially meet the input voltage requirement associated with the corresponding portable appliance, and current programming circuitry for communicating with the power supply for programming the power supply to provide the power to the portable appliance to substantially meet the input current requirement associated with the corresponding portable appliance; and

coupling the selected connector between the output terminal of the power supply and the selected appliance to power the selected appliance at the input voltage requirement and the input current requirement associated with the selected portable appliance.

34. The method of claim 33, wherein the plurality of portable appliance includes at least two devices selected from a portable computer, a telephone, a printer a video device and a game system and the method further includes:

selecting a first portable appliance;

coupling a first connector corresponding to the first portable appliance between the output terminal of the power supply and the first portable appliance to power the selected appliance at the input voltage requirement and the input current requirement associated with the first portable appliance;

selecting a second portable appliance; and

coupling a connector corresponding to the second portable appliance between the output terminal of the power supply and the second portable appliance to power the selected appliance at the input voltage requirement and the input current requirement associated with the second portable appliance,

wherein the input current requirement associated with the first portable appliance is distinct from the input current requirement associated with the second portable appliance.

35. The method of claim 33, wherein the plurality of portable appliance includes at least a portable computer and a telephone, and the method further includes:

selecting a first portable appliance;

coupling a first connector corresponding to the first portable appliance to power the output terminal of the power supply and the first portable appliance to power the selected appliance at the input voltage requirement and the input current requirement associated with the first portable appliance;

selecting a second portable appliance; and

coupling a connector corresponding to the second portable appliance between the output terminal of the power supply and the second portable appliance to power the selected appliance at the input voltage requirement and the input current requirement associated with the second portable appliance,

wherein the input current requirement associated with the first portable appliance is distinct from the input current requirement associated with the second portable appliance.

36. The method of claim 33, the method further comprising:

at the power supply, detecting a resistance of a first resistive element in the selected connector for causing the power supply to provide power to the selected portable appliance to substantially meet the input voltage requirement associated with the selected portable appliance, and detecting a resistance of a second resistive element in the selected connector for causing the power supply to provide the power to the selected portable appliance to substantially meet the input current requirement associated with the selected portable appliance.

37. The method of claim 33, the method further comprising:

transmitting a first signal from a first active device in the selected connector to the power supply for programming the power supply to provide the power to the selected portable appliance to substantially meet the input voltage requirement associated with the selected portable appliance; and

transmitting a second signal from a second active device in the selected connector for programming the power supply to provide the power to the selected portable appliance to substantially meet the input current requirement associated with the selected portable appliance.

38. The method of claim 33, the method further including detachably coupling the selected connector between a cable coupled to the power supply and the selected portable appliance.

39. The method of claim 33, the method further including:

detachably coupling the selected connector between the output terminal of the power supply and a first end of a cable; and

detachably coupling a second end of the cable to the selected portable appliance.

40. The method of claim 33, wherein each of the connectors includes a cable portion and the method further includes detachably coupling a first end of the connector to the output terminal of the power supply and detachably coupling a second end of the connector to the selected portable appliance.