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| Number | Title | Issue Date |
| 8076966 | Analog switch circuit for wide frequency band An analog switch circuit that includes a first field-effect transistor, a source of which is coupled to a first switch terminal, and a drain of which is coupled to a second switch terminal; a first capacitance storing electric charge; a second capacitance storing el... | 12/13/2011 |
| 7772914 | Clock control circuit and voltage pumping device using the same A clock control circuit is provided. The clock control circuit includes a voltage supplier for supplying a first voltage in response to a first clock signal, a voltage booster for boosting the first voltage in response to the first clock signal input to the voltage ... | 08/10/2010 |
| 7746153 | Power FET gate charge recovery A circuit for recovering charge at the gate of an output transistor arranged to drive the output of a switching circuit such as a switching regulator or controller. A substantial portion of the charge for each switching cycle is recovered under a wide range of load ... | 06/29/2010 |
| 7671659 | Clock control circuit and voltage pumping device using the same A clock control circuit is provided. The clock control circuit includes a voltage supplier for supplying a first voltage in response to a first clock signal, a voltage booster for boosting the first voltage in response to the first clock signal input to the voltage ... | 03/02/2010 |
| 7671660 | Single threshold and single conductivity type logic A logic assembly (400) is composed from circuit elements of a single threshold and single conductivity type and comprises a logic circuitry (410) having at least a set of switches each having a main current path and a control terminal. The main current... | 03/02/2010 |
| RE40844 | High-side transistor driver for power converters The high-side transistor driver according to the present invention includes a high-side transistor, a low-side transistor, a drive-buffer and an on/off transistor. When the low-side transistor is turned on, a charge-pump diode and a bootstrap capacitor produce a flo... | 07/14/2009 |
| 7468622 | Integrated circuit having a bootstrap charger An integrated circuit having a bootstrap charger for using in a switching mode power supply is disclosed. In one embodiment, a capacitor is connected between a floating terminal and a bootstrap supply terminal with a voltage drop over the capacitor, a comparing devi... | 12/23/2008 |
| 7397284 | Bootstrapped circuit A bootstrapping circuit capable of sampling input signals beyond a supply voltage is disclosed. In one embodiment, the bootstrapped circuit is implemented having a reduced area and/or power consumption requirement. ... | 07/08/2008 |
| 7385440 | Bootstrapped switch for sampling inputs with a signal range greater than supply voltage A bootstrapped circuit for sampling inputs with a signal range greater than supply voltage includes: a bootstrapped switch coupled between an input node and an output node; a first transistor coupled to a control node of the bootstrapped switch; a first capacitor ha... | 06/10/2008 |
| 7375574 | Semiconductor device A semiconductor device includes a differential level converter circuit that receives a first signal and outputs a second signal of greater amplitude. The differential level converter has a first MISFET pair for receiving the first signal, a second MISFET pair for en... | 05/20/2008 |
| 7372391 | Pipeline ADC with memory effects achieving one cycle absolute over-range recovery A data conversion stage circuit (104) for an opamp-shared pipeline analog-to-digital converter (ADC) (100) includes an over-range detection and recovery circuit including first and second switches (S3, S4) connected between respective inp... | 05/13/2008 |
| 7358696 | Method and apparatus for PWM drive During PWM control in which an actuator (9) is connected between the output terminals of a bridge circuit made up of switching elements (121, 122, 221, 222) and power is applied to the actuator (9) with signals G1U, G1L, G2U... | 04/15/2008 |
| 7339415 | SC circuit arrangement The invention relates to a linear SC circuit arrangement using integrated deep submicron technology, having at least one switched capacitor circuit which is connected to an input for inputting an input signal and which has at least one switchable capacitor and at le... | 03/04/2008 |
| 7327168 | Semiconductor device and driving method thereof It is an object of the invention to provide a digital circuit which can operate normally regardless of binary potentials of an input signal. A semiconductor device having a correcting unit and a logic unit wherein the correcting unit includes a capacitor, first and ... | 02/05/2008 |
| 7321751 | Method and apparatus for improving dynamic range in a communication system An apparatus for improving dynamic range includes a frequency down-conversion module that receives an input signal and a bias circuit. The bias circuit includes a first resistor and a second resistor. The first resister has a first terminal coupled to a bias point a... | 01/22/2008 |
| 7317346 | Selecting a bias for a level shifting device One or more MOS devices may be used as a bias selecting circuit to pass a bias voltage from a bias generator to a level shifting circuit. ... | 01/08/2008 |
| 7315194 | Booster circuit A booster circuit includes a first booster unit having a first output terminal from which a boosted voltage is output. The first output terminal is connected to an external output terminal. A second booster unit has a second output terminal from which a boosted volt... | 01/01/2008 |
| 7307463 | Source follower, voltage follower, and semiconductor device A source follower in which any one of the following three modes is selected by a plurality of switching elements: a first mode in which a first potential is supplied to a gate of a transistor and an input potential is supplied to a first electrode of a capacitor res... | 12/11/2007 |
| 7304530 | Utilization of device types having different threshold voltages A technique implements high impedance nodes using high threshold voltage devices that may generate less leakage current and may have a higher gate oxide breakdown voltage than standard devices in a particular manufacturing technology. Under at least one operating co... | 12/04/2007 |
| 7304526 | Switching circuit for handling signal voltages greater than the supply voltage Analog bidirectional switches (20) comprising a first (1) and a second (2) transistor function badly in case of the signal voltage at an input or an output of the switch (20) exceeding the supply voltage used for operating the switch (... | 12/04/2007 |
| 7301380 | Delay locked loop having charge pump gain independent of operating frequency A delay looked loop (DLL) having a charge pump gain independent of the operating frequency of the DLL. A charge pump is disclosed for providing a charge to a capacitive element on a voltage controlled delay line, wherein the charge is independent of a control voltag... | 11/27/2007 |
| 7301533 | Buffer circuit and active matrix display using the same A buffer circuit includes first to sixth transistors. The first transistor is coupled between a first power source and a first node, and has a gate for receiving a first signal having a first signal level. The second transistor is coupled between the first node and ... | 11/27/2007 |
| 7292065 | Enhanced passgate structures for reducing leakage current Enhanced passgate structures for use in low-voltage systems are presented in which the operational speed of the passgate structures is maximized, while minimizing leakage current when the structure is turned “OFF.” In one arrangement, the VT of the pa... | 11/06/2007 |
| 7282986 | Negative voltage generator circuit The present invention is related to a negative voltage generating circuit for reliably providing the semiconductor integrated circuit (IC) with a negative voltage. An electric charge pumping device generates a negative voltage by pumping an electric charge to a pred... | 10/16/2007 |
| 7279940 | Switched-capacitor circuit with time-shifted switching scheme A switched-capacitor circuit for sampling a pair of differential input signals includes a first bootstrapped switch and a first non-boosted switch connected in parallel between a first output terminal of an amplifier and a first feedback node of the switched-capacit... | 10/09/2007 |
| 7280410 | System and method for mode register control of data bus operating mode and impedance A DRAM device includes a mode register that is programmed to select one of two modes for operating data bus terminals in the device. A timing circuit generates timing signals in synchronism with the clock signal that correspond to the selected mode. The timing signa... | 10/09/2007 |
| 7274222 | Control method for an analogue switch Method for controlling an analogue switch including a transistor to which a variable analogue input voltage Vin is applied on a first terminal between a source terminal and a drain terminal of the transistor while a second terminal between the drain and the source t... | 09/25/2007 |
| 7274224 | Semiconductor device and camera using same The present invention provides a semiconductor device that can adjust signal frequency bandwidths and consumption currents to be appropriately increased or reduced in source-follower amplifiers in all stages. The semiconductor device is comprised of a source-followe... | 09/25/2007 |
| 7272046 | High voltage switching circuit A high voltage switching circuit that has a depletion mode NMOS transistor, an enhancement mode PMOS transistor and an, enhancement mode NMOS transistor. A control circuit generates first and second control signals. A first control signal controls the enhancement mo... | 09/18/2007 |
| 7268610 | Low-voltage CMOS switch with novel clock boosting scheme A method and apparatus for boosting the gate voltages of a CMOS switch used in an integrated circuit designed in a sub-micron CMOS process is disclosed. The CMOS switch is coupled to Vin and Vout nodes, and contains PMOS and NMOS gates. Two boosting circuits are use... | 09/11/2007 |
| 7265606 | Apparatus and method for a boot strap circuit for a boost voltage converter A boost converter with a flying capacitor topology is provided. The flying capacitor is charged during a first half of a cycle. During a second half of the cycle, the output voltage of the boost converter is supplied from Vdd until the output voltage approximately r... | 09/04/2007 |
| 7253675 | Bootstrapping circuit capable of sampling inputs beyond supply voltage The bootstrapping circuit capable of sampling inputs beyond supply voltage includes: a bootstrapped switch MN20 coupled between an input node and an output node; a first transistor MP13 having a first end coupled to a control node of the bootstrapped s... | 08/07/2007 |
| 7248093 | Bipolar bootstrap top switch gate drive for half-bridge semiconductor power topologies The invention is a method and apparatus for supplying both positive and negative gate drive power supply potentials to the top switch, in a typical half-bridge semiconductor power topology, from the bottom switch gate drive power supplies and without the use of tran... | 07/24/2007 |
| 7236425 | Charge pump circuit A charge pump circuit is provided which outputs a high voltage by using a boosting circuit with a smaller number of stages. A diode is used to give a back-gate voltage for a MOS transistor composing the charge pump circuit, thereby minimizing a reduction in a booste... | 06/26/2007 |
| 7233353 | Image sensor having boosted reset A power supply reset boosting element which boosts a level of the reset voltage to a level higher than the level of the power supply. The boosted voltage is isolated from both the power supply and from undesired switching by special transistors which can withstand t... | 06/19/2007 |
| 7233194 | CMOS voltage booster circuits This invention is a new CMOS voltage booster (20) having an output which can be used in memories to boost the word line voltage above VDD or other voltage boosting applications. The CMOS booster includes a NMOS FET (MN1) to charge a boosting capacitor ... | 06/19/2007 |
| 7230453 | Output buffer providing multiple voltages The present invention provides an output buffer providing multiple voltages including an arrangement of bootstrapping capacitors, and a charge replenishing mechanism which provides continuous pulses to the arrangement of bootstrapping capacitors, thereby, maintainin... | 06/12/2007 |
| 7224206 | Charge-pump with improved biasing of the body regions of the pass-transistors A charge pump is proposed. The charge pump is integrated in a chip of semiconductor material and includes a plurality of capacitive elements each one connected to a corresponding circuit node of the charge pump, the circuit nodes being arranged in a sequence from an... | 05/29/2007 |
| 7224204 | Method and circuit for driving a gate of a MOS transistor negative A method and circuit for driving the gate of a MOS transistor having a negative or low threshold voltage negative, in which the driving circuit is formed on a single chip. A negative voltage is generated from a positive voltage to drive the gate of the MOS transisto... | 05/29/2007 |
| 7218349 | Semiconductor device A semiconductor device is provided in which each pixel includes an electric circuit (a bootstrap circuit) for generating an electric potential that is higher than a voltage given through capacitative coupling. Also, there is provided a semiconductor device in which ... | 05/15/2007 |
