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| Number | Title | Issue Date |
| 8049471 | System, method and apparatus to automatically detect a type of a variable output DC power source A method includes coupling a variable output DC power source to power control circuitry, and detecting a type of the variable output DC power source in response to the coupling operation. In one embodiment, the detecting operation may include sending an interrogatio... | 11/01/2011 |
| 8018211 | Output voltage detecting circuit and switching power supply having such output voltage detecting circuit An output voltage detecting circuit includes a conducting structure, a voltage regulator, a first resistor and a second resistor. The conducting structure includes a power output return terminal, a first contact and a second contact. A compensating voltage is genera... | 09/13/2011 |
| 8013579 | Voltage trimming Embodiments are provided that include a memory die, memory devices, and methods, such as those comprising a voltage generator, including an output voltage and an adjustment circuit configured to cause adjustment of the output voltage based on a latch signal. Further... | 09/06/2011 |
| 7936153 | On-chip adaptive voltage compensation Measurement circuit components are included in an integrated circuit fabricated on a semiconductor substrate. These measurement circuits are connected to a voltage regulation circuit that provides the integrated circuit voltage source. These measurement circuits pro... | 05/03/2011 |
| 7884585 | Pre-biased circuit for synchronous rectified power converters The present invention relates to voltage converters and especially to a control circuit with an input from the voltage converter output and arranged to control the voltage level on the voltage converter output. The problem addressed relates to the situation when the... | 02/08/2011 |
| 7768244 | Power-maximizing electrical energy generation system An electrical energy generation system comprising: a plurality of photovoltaic generators connected in parallel and connected to a common load via respective DC voltage converters; and a regulator configured to var... | 08/03/2010 |
| 7589505 | Power supply with reliable voltage feedback control independent of any ground voltage difference A power supply having a control circuit for controlling an output of the power supply, and a voltage monitor circuit for detecting a voltage at a first location and providing the detected voltage to a second location in the control circuit independent of any differe... | 09/15/2009 |
| 7397262 | Burn-in system power stage A burn-in system includes a testing stage configured to stress test one an integrated circuit and a power stage having a voltage control mode and a current control mode. The power stage is configured to supply power to the testing stage. One embodiment of the power ... | 07/08/2008 |
| 7394230 | Total charge measurement In a fast power converter with distributed output capacitors with parasitic impedances between them, the settling time of the output voltage is too long, making voltage unsuitable as a control input. The charge on each of the distributed output capacitors can be mea... | 07/01/2008 |
| 7368891 | Charge control method of capacitor in thyristor converter Charging time of a capacitor is shortened while avoiding erroneous firing due to distortion of a power supply voltage and sustaining an inrush current at a constant level. In the charge control method of a capacitor in a thyristor converter comprising a thyristor fo... | 05/06/2008 |
| 7363522 | Apparatus and methods for information handling system with power supply device with variable output power An information handling system includes a power source configured to provide a plurality of power levels to a load. At least one of the plurality of power levels corresponds to a level obtained by de-rating a capacity of the power source from a nominal design specif... | 04/22/2008 |
| 7359988 | Subnet of power line communication network, method for setting up the same, electronic appliance connected to the same, and communication module used in electronic appliance A communication network for detecting and regulating identifier overlap generated after subnet is created includes a communication module including a starting means for starting a subnet creation sequence; identifier generating means for generating at least two type... | 04/15/2008 |
| 7356614 | Method for detecting and regulating identifier overlap on power line communication network, electronic appliance connected to subnet of power line communication network, and communication module used in electronic appliance A method for detecting and regulating subnet identifier overlap on a power line communication network includes a communication module. The communication module includes an identifier generating means for generating at least two identifiers for identifying a home sub... | 04/08/2008 |
| 7340626 | Image forming apparatus An image forming apparatus includes a main power supply section, an auxiliary power supply section, a plurality of sensors, and a power control section. The sensors are disposed at a plurality of positions. The sensors change output levels thereof upon detection of ... | 03/04/2008 |
| 7339480 | Power processing interface for passive radio frequency identification system A power processing interface for a radio frequency identification system is provided. The power processing interface includes a resonance circuit for inducing a first signal transmitted from a terminal as an AC voltage, a first rectifier circuit electrically connect... | 03/04/2008 |
| 7337341 | Computer system and power management method thereof wherein central processing unit does not support the hyper transport technology A computer system and a power management method thereof are provided. The computer system includes a system management controller, a northbridge, a hyper transport bus, a central processing unit and a power management signal line. The northbridge is electrically con... | 02/26/2008 |
| 7317793 | Method and system for providing DC power on local telephone lines A system for providing DC power on local telephone lines, such as telephone lines in a building or office, for powering devices and circuitry associated with communications over those telephone lines, as well as other functions. Desired voltage and power levels are ... | 01/08/2008 |
| 7294993 | Method and apparatus for customizing of a power supply based on load characteristic data A power supply for powering an electrical load, the electrical load generating load characteristic data that determines a power supply characteristic to be provided to the electrical load from the power supply, the power supply comprising a voltage regulator for gen... | 11/13/2007 |
| 7295949 | Energy efficient achievement of integrated circuit performance goals A system and method for meeting performance goals in an electronic system in an energy efficient manner. Various aspects of the present invention may comprise operating an electrical circuit at a current level of performance and a current level of energy efficiency ... | 11/13/2007 |
| 7274731 | Non-chronological system statistics A communications device apparatus and method is detailed that allows for improved system statistics gathering of network communication links, dataports, and system status. The improved communications device apparatus and method utilizes a relative time reference or ... | 09/25/2007 |
| 7271676 | Method and/or apparatus for implementing a voltage controlled ring oscillator having a multi-peak detected amplitude control loop An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate an output signal oscillating at a first frequency in response to (i) a first control signal, and (ii) a second control signal. The second circuit may be con... | 09/18/2007 |
| 7249267 | Method and system for communicating filter compensation coefficients for a digital power control system A method and system is provided for programming the digital filter compensation coefficients of a digitally controlled switched mode power supply within a distributed power system. The distributed power system comprises a plurality of point-of-load (POL) regulators ... | 07/24/2007 |
| 7228186 | Field-mounted process device with programmable digital/analog interface Embodiments of the present invention generally provide a field-mountable process device that receives digital information from one or more process devices, and provides an associated analog output. Embodiments of the present invention include providing a wireless in... | 06/05/2007 |
| 7224562 | Short-circuit protective circuit The invention provides a short-circuit protective circuit for a constant-voltage power-supply circuit. The constant-voltage power-supply circuit can realize a short-circuit protection with a simple circuit configuration in a power-supply circuit provided with a plur... | 05/29/2007 |
| 7218496 | Overcurrent protection circuit The voltage generator circuit includes a regulator, a first sensor circuit, and a second sensor circuit. The first sensor circuit includes a first transistor, a first resistor, and an error amplifier. When V1>Vth, the error amplifier senses an overcurrent con... | 05/15/2007 |
| 7166937 | Power supply, and associated method, exhibiting selectable electrical characteristics Apparatus, and an associated method, for a power converter that provides operative power to a load device. The characteristics of the operative power are selectable, permitting the power supply to be used to power load devices of differing power requirements. An ind... | 01/23/2007 |
| 7139920 | Method and apparatus for supplying power in electronic equipment A method and apparatus are disclosed for supplying power in electronic equipment. Thus the apparatus comprises at least one electronic component and a power supply unit that provides power to the electronic component. The power supply unit incorporates a detector th... | 11/21/2006 |
| 7123370 | Control system and units removably attachable to the same A control system having device units removably attachable to a control device such as a computer is arranged to optimize the allocation and distribution of electric power to the device units and also displays of varied kinds. For this purpose, each device unit of th... | 10/17/2006 |
| 7116921 | Method and apparatus to correct power source voltage variation in an image forming system A method and apparatus to correct power source voltage variation in an image forming system. The apparatus to correct power source voltage variation includes: an image density sensing unit which senses an image density; a first variation correction unit which calcul... | 10/03/2006 |
| 7099707 | Method and system for providing power to a communications device Embodiments of the present invention relate to apparatus and methods to provide power to a communications unit. In one embodiment of the present invention, a system includes a first communications network to engage in communications with the communications unit and ... | 08/29/2006 |
| 7082385 | Method for verifying optimization of processor link A method for verifying optimization of processor link. First, an initial bus width and an initial bus frequency of a bus coupled between a CPU and a Northbridge are set, such that the bus operates at the initial bus width and the initial bus frequency. Next, a read ... | 07/25/2006 |
| 7013396 | Circuit for enabling dual mode safe power-on sequencing A circuit that enables a safe power-on sequencing is described. The circuit enables a processor to be powered by an internal or external voltage source. The circuit detects for the presence of an external voltage regulator. If an external voltage generator is not pr... | 03/14/2006 |
| 6996389 | Power supply for a satellite receiver A power supply for a satellite receiver system includes a dual input supply voltage arrangement. When a higher output voltage is selected, a source of a lower supply input voltage is coupled to an input main current conducting terminal of a series pass transistor. O... | 02/07/2006 |
| 6965291 | Circuit component and transformer device with controllable impedance and with systems equipped with such devices A circuit component (L1) with controllable impedance, includes a body (1) of a magnetizable material, a main winding (A1) wound round the body (1) about a first axis and a control winding (A2) wound round the body (1) about ... | 11/15/2005 |
| 6954039 | Driving circuit for light emitting diodes An LED driving circuit includes a current limiting resistor (24), an FET (22), and a feedback circuit (23). The FET has a drain electrode connected to the current limiting resistor to provide current to a load such as an LED (25), and the... | 10/11/2005 |
| 6925616 | Method to test power distribution system A method for testing a core power distribution system for an integrated circuit chip which includes arranging a plurality of experiments for an integrated circuit chip, performing the plurality of experiments for the integrated circuit chip over a range of frequenci... | 08/02/2005 |
| 6836092 | Methods and circuits for detecting operational information of DC Fans Methods and circuits detect operational information about DC fans powered by pulse width modulation, such as detecting fan presence in a device and/or detecting rotational speed. Output pulses produced by the fan related to the rotational speed are utilized to produ... | 12/28/2004 |
| 6812587 | Continuous power supply with back-up generation A continuous power supply may include a turbogenerator to provide power to supply the load and or an energy storage element and possibly also to the primary energy source. Utilizing an isolated DC bus architecture permits bi-directional power flow among interconnect... | 11/02/2004 |
| 6801025 | Method and apparatus for control of voltage regulation According to an apparatus form of the invention, integrated circuitry on a single chip includes a bit-programmable voltage regulator supplying voltage to first circuitry on the chip. The integrated circuitry also includes second circuitry operable for characterizing... | 10/05/2004 |
| 6756773 | Switching mode power supply with forward-looking regulation for a pulsed load Apparatus and method for regulating a switching circuit of a voltage converter for supplying power to a pulsed load having a known upcoming magnitude. The voltage converter includes a switching circuit receiving a switching signal with duty cycle that is adjusted by... | 06/29/2004 |
