Quotables
"There is practically no chance communications space satellites will be used to provide better telephone, telegraph, television, or radio service inside the United States."
T. Craven, FCC Commissioner ; 1961
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7723972 | Reducing soft start delay and providing soft recovery in power system controllers In one embodiment, a method is provided for reducing soft-start delay and ensuring soft recovery from a short circuit or brown out condition in a power converter. The method includes: providing a feedback signal indicative of the output voltage of the power system a... | 05/25/2010 |
| 7719246 | Power control system using a nonlinear delta-sigma modulator with nonlinear power conversion process modeling A power control system includes a switching power converter and a power factor correction (PFC) and output voltage controller. The switching power converter utilizes a nonlinear energy transfer process to provide power to a load. The PFC and output voltage controlle... | 05/18/2010 |
| 7719244 | Method and apparatus for enabling a voltage regulator A voltage regulator circuit is operated by enabling a bias network operable to set a bias current in an amplifier. A startup circuit is connected to the bias network, the startup circuit operable to assist the bias network in setting the amplifier bias current durin... | 05/18/2010 |
| 7719247 | DC/DC converter with improved stability A DC/DC converter includes a switch, an inductor, a capacitor, a resistor, and a voltage divider. The switch is coupled to the input voltage. The inductor is used for coupling the first switch to an output node of the DC/DC converter so as to generate the output vol... | 05/18/2010 |
| 7719245 | Methods and apparatus to provide self-tracking pre-driver controls Methods and apparatus for a self-tracking high-side pre-driver control are described. In an example, a method is described comprising charging a first terminal associated with a first capacitive element to a first voltage with respect to ground and a second terminal... | 05/18/2010 |
| 7714555 | Switching regulation device and related method with over-current protection A switching regulation device includes a switching regulation module and a control module. The switching regulation module generates a first control signal. The control module is coupled to the switching regulation module for receiving the first control signal and p... | 05/11/2010 |
| 7714556 | Quick response switching regulator and control method thereof A quick response switching regulator comprises a power stage having a pair of high-side switch and low-side switch and an inductor connected together by a switching node, a feedback circuit for producing a feedback signal, and a control circuit producing control sig... | 05/11/2010 |
| 7714554 | Forward power converter controllers This invention relates to control techniques and controllers for resonant discontinuous forward power converters (RDFCs). A method of controlling a resonant discontinuous forward converter (RDFC), said converter including a transformer with primary and second... | 05/11/2010 |
| 7710093 | Driver for a power converter and a method of driving a switch thereof A driver for a power converter, method of driving a switch thereof, and a power converter employing the same. In one embodiment, the driver includes switching circuitry referenced to a voltage level and configured to provide a drive signal for a switch referenced to... | 05/04/2010 |
| 7710092 | Self tracking ADC for digital power supply control systems A self-tracking analog-to-digital converter includes a digital-to-analog converter (DAC) adapted to provide a variable reference voltage, a windowed flash analog-to-digital converter (ADC) adapted to provide an error signal ek corresponding to a differenc... | 05/04/2010 |
| 7705576 | High-win circuit for multi-phase current mode control A current mode control circuit uses a current comparing module to control a switching signal according to one of a plurality of current feedback signals. The current mode circuit comprises a voltage control module that generates an output voltage according to an inp... | 04/27/2010 |
| 7696735 | Switched capacitor converters A switched capacitor converter has a supply voltage input, an output circuit with one or more load capacitors, a semiconductor switch network. The switch network is connected at a switch junction point and across the voltage input, and has one or more pairs of said ... | 04/13/2010 |
| 7688052 | Charge pump circuit and method therefor In one embodiment, a charge pump circuit is used to keep a boost capacitor of a power supply system charged while the switch transistors are not switching such as when the power supply system is operating in a burst mode of operation. ... | 03/30/2010 |
| 7683594 | Intelligent dead time control A circuit for reducing switching losses in a synchronous rectifier of a switching stage including a high-side control transistor and a low-side synchronous transistor coupled at a switching node, the switching stage receiving an input voltage and providing a control... | 03/23/2010 |
| 7683595 | Method for actuation, and actuating circuit for a switch in a power factor correction circuit The document describes a method and an actuating circuit for actuating a switch regulating the power consumption in a power factor correction circuit which has input terminals for applying an input voltage and output terminals for providing an output voltage. In thi... | 03/23/2010 |
| 7679347 | Closed-loop digital control system for a DC/DC converter A control system comprises a DC/DC converter that includes first and second inductances, that receives a first DC voltage and that generates a second DC voltage. A control module selectively charges or discharges the first inductance while discharging or charging th... | 03/16/2010 |
| 7679346 | Power supply apparatus and operation-mode determining unit and method thereof A power supply apparatus and an operation-mode determining unit and a method thereof are provided. The power supply apparatus includes first and second control units, a switching unit, a power output unit, and an operation-mode determining unit. The first and second... | 03/16/2010 |
| 7679348 | Switching regulator A switching regulator is disclosed that is able to operate with low power consumption and able to prevent variation of an output voltage. The switching regulator operates in a PWM control mode and a PFM control mode, and includes a switching unit; an error amplifica... | 03/16/2010 |
| 7679349 | Switching systems and methods with current sensing Embodiments of the present invention include an electronic circuit for performing current sensing. In one embodiment, the present invention includes a first switching transistor and a second switching transistor both coupled to receive a first switching current and ... | 03/16/2010 |
| 7667443 | System and method for near zero light-load supply current in switching regulator Techniques for near zero light-load supply current in switching regulators are described. In one aspect a voltage regulator operating a normal mode is generating an error signal indicating a difference between the output and the regulated voltage. A control signal, ... | 02/23/2010 |
| 7663354 | Voltage clamp circuit, a switching power supply device, a semiconductor integrated circuit device, and a voltage level conversion circuit The present invention provides a voltage clamping circuit which is operated in a stable manner with the simple constitution and a switching power source device which enables a high-speed operation. In a switching power source device, one of source/drain routes is co... | 02/16/2010 |
| 7663355 | Power supply apparatus In a power supply apparatus that is so configured as to produce from an input voltage an output voltage Vo within a predetermined permissible variation range, the output voltage Vo is so controlled as to decrease within the permissible variation range as the output ... | 02/16/2010 |
| 7656140 | Nonlinear digital control circuit and method for a DC/DC converter A control circuit for a DC/DC converter has a linear-control loop, which receives a quantity to be controlled and a first reference quantity, and generates a modulation value. A nonlinear modulation unit is activated in presence of a variation of the quantity to be ... | 02/02/2010 |
| 7652457 | Switching regulator circuit including an inductor shunt switch A switching regulator circuit includes a switching circuit that may be configured to alternately apply a supply voltage and a reference voltage to an inductor coupled between a first node and an output node. The switching regulator circuit also includes a switch suc... | 01/26/2010 |
| 7652458 | Power converting apparatus, electronic apparatus comprising the same and power converting method A power converting apparatus includes a power input part to which power is input; a power converting part converting the power input through the power input part; a converting current detecting part detecting a converting current of the power converted in the power ... | 01/26/2010 |
| 7646184 | Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply A power supply including a regulation circuit that maintains an approximately constant load current with line voltage. In one embodiment, a regulation circuit includes a semiconductor switch and current sense circuitry to sense the current in the semiconductor switc... | 01/12/2010 |
| 7646183 | Adjusting an output voltage of a converter based on current consumption A system includes a converter to convert an input voltage to an output voltage, where the converter has an adjustment input. The system further includes a voltage adjustment logic to receive an indication of an electrical current consumed by a load, with the voltage... | 01/12/2010 |
| 7642763 | Switching power supply circuit having independent loops An exemplary switching power supply circuit (2) includes a power source (20), a pulse width modulation (PWM) circuit (21), a first switching circuit (22), a second switching circuit (23), a first transformer (25), and a seco... | 01/05/2010 |
| 7642762 | Current source with indirect load current signal extraction A switching circuit for supplying current to a load has a switching element, an inductive element coupled to the switching element, and a load current extraction circuit responsive to current in the inductive element for producing a load current signal as a simulate... | 01/05/2010 |
| 7638993 | Method of feedback controlling a switched regulator A method of feedback controls a switched regulator generating a regulated voltage on an output terminal and being driven by a pulse width modulated (PWM) signal that determines on-phases during which the output terminal is selectively connected to a supply line, and... | 12/29/2009 |
| 7633278 | Switching regulator In a replica circuit, a potential simulating a waveform of current passing through an inductor is generated as a referential potential. A timing when the referential potential and an output potential become substantially the same as each other and a timing when the ... | 12/15/2009 |
| 7626370 | Apparatus and method for hysteretic boost DC-DC converter A boost hysteretic DC-DC converter is provided. The converter includes a power switch, a hysteretic comparator, an inductor, an output capacitor, and a resistive device. The resistive device is coupled to the bottom of the output capacitor, so that the output voltag... | 12/01/2009 |
| 7626369 | Switch mode power converter A load line regulated switched-mode power converter supplies an output voltage and an output current to a load. The power converter includes an inductor, a switch coupled to the inductor, a first impedance, a second impedance, and a power converter controller. The p... | 12/01/2009 |
| 7622904 | Power array system and method A method of reducing switching losses in a switch array for an output regulator, the switch array to convert energy from an input source to a regulated output of the output regulator, the switch array including at least two power switches, includes determining an ex... | 11/24/2009 |
| 7619398 | Programmable on-chip sense line Disclosed herein is a system for controlling power supply voltage to an on-chip power distribution network. The system incorporates a programmable on-chip sensing network that can be selectively connected to the power distribution network at multiple locations. When... | 11/17/2009 |
| 7615978 | Current mode control with feed-forward for power devices A power device controller includes a voltage mode control loop to generate an error voltage and to control a power device and a current mode control loop to generate a current control voltage and to control the power device. The current mode control loop includes a ... | 11/10/2009 |
| 7605573 | Switching regulator providing slope compensation and voltage control method thereof A CMC-type switching regulator is disclosed that includes: a switching element switching to control outputting of input voltage; a smoothing circuit outputting the smoothed output voltage of the switching element to an output terminal; a voltage divider dividing the... | 10/20/2009 |
| 7602163 | Coupled inductor output regulation An information handling system includes a power converter having a first switched inductor to supply current to a load. A second switched inductor is inductively coupled to the first switched inductor. A control circuit activates the second switched inductor in resp... | 10/13/2009 |
| 7602165 | Phase control device for DC/DC converter A phase control device for use with a voltage-boosting DC/DC converter includes a current sensor for detecting a current flowing through at least one of the primary and secondary windings of a transformer of the DC/DC converter, a ripple determining section for, on ... | 10/13/2009 |
| 7602164 | Adaptive DC to DC converter system The present invention discloses an integrated voltage regulator comprising a switching regulation and an additional regulation mechanism. The additional regulation mechanism permits better control of the voltage regulator to enable improved performance. The present ... | 10/13/2009 |
