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| Number | Title | Issue Date |
| 7999412 | Detachable tip for communicating with adapter and electronic device A detachable tip is used in conjunction with a power adapter to provide DC power to an electronic device. The tip includes an input connector which detachably mates with a connector which is electrically coupled to the power adapter. An output connector of the tip d... | 08/16/2011 |
| 7863770 | Power supply equipment for simultaneously providing operating voltages to a plurality of devices Power supply equipment includes circuitry for converting an input voltage to first and second DC voltages provided at respective connection points. One of the connection points is electrically coupled to a first cable having at its distal end a connector or connecto... | 01/04/2011 |
| 7727005 | Key coded power adapter connectors A key coded power connector and a system and method for making key coded power connections are disclosed. A power connector such as a power adapter connector is configured with either a visual keying system, a physical keying system, or both. The physical keying sys... | 06/01/2010 |
| 7545656 | Common mode noise reduction circuit utilizing dual primary windings A common mode noise cancellation circuit eliminates common mode noise generated by a high-frequency switching device. The common mode noise reduction circuit includes a single switching device and a transformer. The switching device receives a rectified voltage and ... | 06/09/2009 |
| 7495941 | Power supply equipment with matching indicators on converter and connector adapters Power supply equipment includes a power converter and connector adapters for coupling between the converter and various appliances. The connector adapters bear respective adapter indicators. A particular connector adapter, bearing a corresponding adapter indicator, ... | 02/24/2009 |
| 7489116 | Power factor correction control circuit A bi-directional boost circuit for power factor correction includes a power factor control circuit and a pair of diodes, a pair of inductors, and a pair of switches. A first diode, a second diode, a first inductor, a second inductor, a first switch, and a second swi... | 02/10/2009 |
| 7460381 | Programmable power supply A programmable power supply for providing a regulated DC output power is disclosed. The power supply provides the output power to any one of a plurality of electronic devices adapted for receiving the output power at an operational voltage or an operational current.... | 12/02/2008 |
| 7453171 | DC power source determination circuitry for use with an adapter An adapter device includes a DC/DC adapter to receive DC power from a DC power source, and output a regulated DC voltage (Vout). A source determination circuitry receives the DC power from the DC power source and compares a magnitude of a voltage of the D... | 11/18/2008 |
| 7450403 | Switching power supply utilizing switch-selectable resistors to determine output voltage A switching power supply includes a source of DC voltage and a transformer having primary and secondary windings. A switching circuit is coupled between the DC voltage and the primary winding to provide alternating current to the primary winding. A rectifier circuit... | 11/11/2008 |
| 7450390 | Programmable power supply A progammable power supply for providing a regulated DC output power is disclosed. The power supply provides the output power to any one of a plurality of electronic devices adapted for receiving the output power at an operational voltage or an operational current. ... | 11/11/2008 |
| 7420823 | Power factor correction control circuit A bi-directional boost circuit for power factor correction includes a power factor control circuit and a pair of diodes, a pair of inductors, and a pair of switches. A first diode, a second diode, a first inductor, a second inductor, a first switch, and a second swi... | 09/02/2008 |
| 7365524 | Tip having active circuitry A power supply system includes an adapter to receive power from a power source, and output a regulated output voltage (Vout). A tip receives Vout from the adapter, and output Vout to an electronic device. The tip includes active circ... | 04/29/2008 |
| 7355851 | Power adapter with fan assembly and control circuit A power converter with a fan assembly cools down a temperature of the power converter. The power converter with a fan assembly includes a housing, a plate, and a second plate. The housing includes a fan assembly (which is integral to the housing) to draw in air. The... | 04/08/2008 |
| 7279868 | Power factor correction circuits A bi-directional boost circuit for power factor correction includes a power factor control circuit and a pair of diodes, a pair of inductors, and a pair of switches. A first diode, a second diode, a first inductor, a second inductor, a first switch, and a second swi... | 10/09/2007 |
| 7266003 | Programmable power supply A programmable power supply for providing a regulated DC output power is disclosed. The power supply provides the output power to any one of a plurality of electronic devices adapted for receiving the output power at an operational voltage or an operational current.... | 09/04/2007 |
| 7265973 | Power adapter with fan assembly A power converter with a fan assembly cools down a temperature of the power converter. The power converter with a fan assembly includes a housing, a plate, and a second plate. The housing includes a fan assembly (which is integral to the housing) to draw in air. The... | 09/04/2007 |
| 7254048 | Power supply capable of AC and DC input utilizing winding of transformer as boost inductor A programmable AC/DC power converter receives a plurality of input voltages and outputs a single voltage from an input voltage system. A transformer receives the single voltage. One of the plurality of input voltages is provided at a center tap of a secondary windin... | 08/07/2007 |
| 7193873 | Cradle for receiving an adapter A cradle casing has a DC/DC adapter to receive DC power from a DC power source and generate a first DC power signal. A sleeve accepts an AC/DC adapter, and guides movement of the AC/DC adapter when the AC/DC adapter is inserted into the cradle casing. The AC/DC adap... | 03/20/2007 |
| 7193398 | Tip having active circuitry A power supply system includes an adapter to receive power from a power source, and output a regulated output voltage (Vout). A tip receives Vout from the adapter, and output Vout to an electronic device. The tip includes active circ... | 03/20/2007 |
| 7148659 | Programmable AC/DC power supply A programmable AC/DC power converter receives a plurality of input voltages and outputs a single voltage from an input voltage system. A transformer receives the single voltage. One of the plurality of input voltages is provided at a center tap of a secondary windin... | 12/12/2006 |
| 7145787 | Programmable power supply A power supply system includes a power source and a control circuit. The power source provides DC power. A control circuit, which is remote to the power source, receives the DC power and provides a first DC power signal to an electronic device. The control circuit i... | 12/05/2006 |
