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| Number | Title | Issue Date |
| 7812589 | Modified current source (MCS) with seamless range switching A current source is provided with two resistor banks, and digital potentiometers are used to control how much each resistor bank affects the resulting output current. Furthermore, when the digital potentiometers are at a particular setting such that a particular res... | 10/12/2010 |
| 7504816 | Circuit for multiplexing digital and analog information via single pin of driver for switched MOSFETs of DC-DC converter Multiple characteristics of a DC-DC converter, such as its mode of operation (e.g., either forced continuous conduction mode, or discontinuous conduction mode), and an operational parameter (such as the dead-time between switching times of the output switching devic... | 03/17/2009 |
| 7365526 | Synchronous buck DC/DC converter to perform an improved switching operation by adjusting variable resistor A synchronous buck DC/DC converter to perform an improved switching operation by adjusting a variable resistor is provided. The synchronous buck DC/DC converter includes a switching unit for switching two PWM signals inverted with a dead time and outputting the PWM ... | 04/29/2008 |
| 7356716 | System and method for automatic calibration of a reference voltage A system and system for automatic voltage calibration is presented. A voltage calibration system includes three main units, which are a voltage level trimming unit, a trim detection unit, and a trim control unit. The three units work in conjunction with each other d... | 04/08/2008 |
| 7339362 | Alterable DC power supply circuit An alterable DC power supply circuit includes a regulator, a resistor, and an adjustable load resistance. The regulator includes a voltage input pin, a voltage output pin, and an adjusting pin. The resistor is coupled between the voltage output pin and the adjusting... | 03/04/2008 |
| 7323933 | Vector modulator having attenuators with continuous input steering Variable attenuation systems having continuous input steering may be used to implement vector or quadrature modulators and vector multipliers. Discrete implementations of attenuators with continuous input steering may have two outputs which may be cross-connected to... | 01/29/2008 |
| 7319346 | Circuit and method for trimming integrated circuits A programmable after-package, on-chip reference voltage trim circuit for an integrated circuit having a plurality of programmable trim cells generating a programmed sequence. A converter is provided to convert the bit sequence into a trim current. The trim current i... | 01/15/2008 |
| 7300807 | Structure and method for providing precision passive elements A circuit having a precision passive circuit element, such as a resistor or a capacitor, with a target value of an electrical parameter is fabricated on a substrate with a plurality of independent parallel-connected passive circuit elements. The plurality of passive... | 11/27/2007 |
| 7292078 | Phase locked loop integrated circuits having fast locking characteristics and methods of operating same An integrated circuit device includes a fast-locking phase locked loop (PLL). This PLL includes a phase-frequency detector and first and second charge pumps, which are responsive to first and second control signals generated by the phase-frequency detector. The firs... | 11/06/2007 |
| 7292019 | Method for accurately setting parameters inside integrated circuits using inaccurate external components The control precision of one or more parameters of an integrated circuit (IC), for example the output voltage of a voltage regulator comprised in the IC, may be improved even when using inaccurate components external to the IC. Control of the output voltage, or any ... | 11/06/2007 |
| 7282807 | Systems and methods for testing a wind turbine A system for testing is described. The system includes a wind turbine, a grid generator configured to generate power and coupled to the wind turbine, and a portable load coupled to the grid generator. ... | 10/16/2007 |
| 7269239 | Simple two-wire communication protocol with feedback status A two-wire communication protocol between a controller device and a controlled device, wherein both devices are coupled by a clock line and a data line. The controller device sends control signals comprising N bits, N being greater than or equal to two, to the contr... | 09/11/2007 |
| 7266462 | System, method and computer program product for configuring power supply apparatus A system, method and computer program for configuring power supply apparatus to supply a voltage optimized to tolerate a range about a nominal operating voltage of a device comprises a tester to test and communicate to a comparator a present utility voltage value. T... | 09/04/2007 |
| 7259703 | Device for recording laser trim progress and for detecting laser beam misalignment The device for detecting and tracking a status of a device under laser trim includes: a series connected string of trim tracking links; and a plurality of detecting devices wherein each detecting device is coupled in parallel with a corresponding trim tracking link.... | 08/21/2007 |
| 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 |
| 7250890 | Area-efficient, digital variable resistor with high resolution A system, apparatus and method for providing a digital variable resistor with high resolution and efficient use of substrate area is described. In one embodiment of the invention, a digital variable resistor string comprises a serial array of resistors that is conne... | 07/31/2007 |
| 7224153 | Apparatus and method to compensate for effects of load capacitance on power regulator A power regulator has an output for regulated power that is connected to supply power to a load. The load can have various electrical characteristics, including requiring a rapid transient response. The transient response amplitude for the power regulator is decreas... | 05/29/2007 |
| 7196570 | Multiple-time programmable resistance circuit Fuse circuit designs and the use thereof are disclosed. In one example, a fuse circuit providing predictable total resistances for multiple rounds of programming comprises a predetermined number of fuse stages coupled in series. Each stage comprises a first and a se... | 03/27/2007 |
| 7173408 | Adjustable regulated power device An adjustable regulated power device includes, for example, an electronic potential device, a regulated device and a control device. The electronic potential device includes an electronic potentiometer having a plurality of potentiometers. The regulated device inclu... | 02/06/2007 |
| 7170707 | Systems and methods for reducing power dissipation in a disk drive including an adjustable output voltage regulator A disk drive system includes an adjustable output (linear or switching) voltage regulator including an output terminal that provides an output voltage. A plurality of loads each include a voltage supply terminal that receives the output voltage. A controller dynamic... | 01/30/2007 |
| 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 |
| 7109892 | Device for activating an electronic control unit A device for activating a control unit is proposed. It includes at least one operating element operable by a user as well as analog encoding means assigned to the operating element. To generate an activation signal for a control unit, deactivation means are provided... | 09/19/2006 |
| 7106120 | PCMO resistor trimmer Using programmable resistance material for a matching resistor, a resistor trimming circuit is designed to reversibly trim a matching resistor to match a reference resistor. The programmable resistance materials such as metal-amorphous silicon metal materials, phase... | 09/12/2006 |
| 7106122 | High linearity large bandwidth, switch insensitive, programmable gain attenuator An apparatus for providing a programmable gain attenuator (PGA) while minimizing the influence of semiconductor switches on the signal being attenuated. An example apparatus comprises a impedance ladder with taps forming the junctions between impedances the PGA is t... | 09/12/2006 |
| 7095847 | DC/DC converter and subscriber line interface circuit A DC/DC converter capable of preventing abnormal temperature increase in a power transistor. The DC/DC converter comprises a loop circuit, a power transistor, an abnormal high temperature detection circuit, and an abnormality processing circuit. The power transistor... | 08/22/2006 |
| 7084691 | Mono-polarity switchable PCMO resistor trimmer Using programmable resistance material for a matching resistor, a resistor trimming circuit is designed to reversibly trim a matching resistor to match a reference resistor. The programmable resistance materials such as metal-amorphous silicon metal materials, phase... | 08/01/2006 |
| 7071669 | Reference voltage generation circuit, display driver circuit, display device, and method of generating reference voltage A reference voltage generation circuit includes first to third resistance ladder circuits. The first resistance ladder circuit has at least one variable resistance circuit in which a resistance value between both ends is variable, and outputs multi-valued reference ... | 07/04/2006 |
| 7047649 | Power cord for a hand-held electrical device A hand-held electrical device having a power cord that provides enhanced retainment of the power cord to a receptacle of the hand-held electrical device during operation of the hand-held electrical device. The power cord includes an enlarged tip portion that provide... | 05/23/2006 |
| 7043386 | Potentiometer providing a high resolution A high resolution potentiometer implemented using at least two digital potentiometers connected in parallel. Each digital potentiometer is controlled to provide a corresponding resistance value, and a desired resistance value is attained by such control. The resolut... | 05/09/2006 |
| 7042380 | Digital potentiometer with resistor binary weighting decoding A digital potentiometer includes a string of impedance units in series. The string includes identical first and second sets of impedance units whose individual impedance values increment by a power of two. One of a plurality of switches is coupled in parallel with e... | 05/09/2006 |
| 7020890 | Millimeter wave transmitter, millimeter wave receiver and millimeter wave communication system enabling simplification of wiring and improvement in degree of freedom for setting receiver in receiving system for terrestrial broadcasting and satellite broadcasting In order to receive satellite broadcasting (BS and CS) and terrestrial broadcasting (VHF and UHF), complicated wiring is required in a personal residence for transmitting broadcasting signals to a plurality of TV receivers while new distributors must be additionally... | 03/28/2006 |
| 7007175 | Motherboard with reduced power consumption A motherboard with reduced power consumption is disclosed. The motherboard has a memory module slot, a DDR termination array, and a control chip. The DDR termination array couples to the memory module slot and provides a termination resistor that has one terminal co... | 02/28/2006 |
| 7005837 | Digital potentiometer including output buffer A digital potentiometer is disclosed that includes first, second, and third signal terminals. A chain of series-connected impedance elements with multiple tap points is connected between the first and second signal terminals. A plurality of first switching devices a... | 02/28/2006 |
| 7002391 | Selectable input attenuation Mobile terminal design is made simpler by providing an attenuation circuit having a selectable amount of attenuation within an integrated circuit. In one embodiment, a plurality of input pins are provided so as to connect to different points of the attenuation circu... | 02/21/2006 |
| 6970334 | Power regulation loop performs two functions A circuit provides a power regulation loop that operates in two modes and uses a single comparator between the two modes. One mode, an open mode, involves generating an overload signal when the pass transistor is in an oversaturated mode indicating that the voltage ... | 11/29/2005 |
| 6949918 | Apparatus having adjustable operational modes and method therefore Briefly, in accordance with one embodiment of the invention, an integrated circuit has a voltage regulator and a clock divider that may be used to adjust the operational frequency and/or voltage potential of the integrated circuit to reduce the power consumption of ... | 09/27/2005 |
| 6922046 | Variable impedance network with coarse and fine controls An impedance network. The network includes a plurality of impedance elements, at least one end terminal, and a wiper terminal. The network also includes a first plurality of switching elements selectively providing tap positions to the at least one end terminal, sel... | 07/26/2005 |
| 6917190 | Power supply apparatus varying an output constant voltage in response to a control signal from a load circuit A power supply apparatus includes an output voltage generator, a reference voltage generator, a voltage divider, and a voltage control circuit. An input voltage is supplied from a direct current power source. The output voltage generator generates a constant output ... | 07/12/2005 |
| 6911896 | Enhanced linearity, low switching perturbation resistor strings A resistor string that may have two resistor matrices laid out back-to-back with selected or all nominally equipotential nodes of the two matrices being interconnected. In certain applications, the matrix may have switch connections at each node, with the second mat... | 06/28/2005 |
| 6882943 | System, method and computer program product for configuring power supply apparatus A system, method and computer program for configuring power supply apparatus to supply a voltage optimized to tolerate a range about a nominal operating voltage of a device comprises a tester to test and communicate to a comparator a present utility voltage value. T... | 04/19/2005 |
