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| Number | Title | Issue Date |
| 8169240 | Driver circuit of display device A driver circuit includes a mode control unit and a plurality of source drivers to drive a display panel including pixel cells on each scan line. Each source driver has M driving channels, and two subsets of the driving channels are respectively in a first mode and ... | 05/01/2012 |
| 8169239 | Driver circuit of display device A driver circuit includes a mode control unit and a plurality of source drivers to drive a display panel including N pixel cells on each scan line. Each source driver has M driving channels, and a first subset of the driving channels and a second subset of the drivi... | 05/01/2012 |
| 8154324 | Half bridge driver input filter A driver integrated circuit for driving at least one high voltage half bridge stage. The driver including a filter circuit for filtering a signal provided to the half bridge stage, a minimum pulse width of the signal being near a constant time of the filter, wherein... | 04/10/2012 |
| 8063671 | Driving circuit of switch device The present invention relates to a driving circuit of switch device. The present invention employs transformer isolated driving. The number of said transformers is two. The primary sides of the two transformers are connected to two driving modulators, respectively. ... | 11/22/2011 |
| 8054110 | Driver circuit for gallium nitride (GaN) heterojunction field effect transistors (HFETs) A driver circuit and integrated circuit implementation of a driver circuit for driving a GaN HFET device is disclosed. The driver circuit includes a resonant drive circuit having an LC circuit with an inductance and a capacitance. The capacitance of the LC circuit i... | 11/08/2011 |
| 8040164 | Circuits and methods for programming integrated circuit input and output impedances An integrated circuit may include at least a first replica driver stage coupled between a reference impedance input and a first power supply node and having a first programmable driver impedance set by a first driver configuration value in the same manner as a first... | 10/18/2011 |
| 8008953 | Gate control circuit An integrated circuit for switching a transistor is disclosed. In some embodiments, an operational amplifier is configured to drive a transistor, and slew rate control circuitry is configured to control the slew rate of the transistor source voltage during turn on. ... | 08/30/2011 |
| 7952398 | Bias circuit for common-mode and semiconductor process voltage and temperature optimization for a receiver assembly A receiver suitable for applications that desire a common-mode voltage range from approximately 0.7V to approximately 0.9V is arranged by coupling first and second differential pair circuit architectures based on first and second current-steering schemes into the sa... | 05/31/2011 |
| 7948277 | Drive circuit for semiconductor element A drive circuit wherein any abnormality of a semiconductor element is prevented from being erroneously sensed in a case where a gate “ON” command has entered in a state in which a gate voltage of the semiconductor element has not lowered fully. A detection proce... | 05/24/2011 |
| 7868666 | Low-quiescent-current buffer An embodiment of an input-buffer circuit may include an input stage with an inverter having an input operable to receive a signal to be translated. The input stage may include a limiting circuit coupled to the input stage for arresting quiescent current. Additional ... | 01/11/2011 |
| 7859315 | Driver circuit A driver circuit facilitates reducing noises and losses and improving the driving performances thereof without connecting a series circuit of capacitor and a resistor to the gate of IGBT. The driver circuit includes a slope setting circuit that sets the gate voltage... | 12/28/2010 |
| 7839185 | Method and circuit arrangement configured for driving a field-effect-controlled transistor A method and circuit arrangement including driving a field effect controlled transistor. One embodiment provides a first load terminal, a second load terminal and a control terminal. The control terminal is driven, at least during a Miller plateau phase of the trans... | 11/23/2010 |
| 7821306 | Switching device drive circuit A gate voltage detecting circuit 201 detects a gate voltage Vgs of a switching device 11, and when the gate voltage is less than a predetermined voltage that is set to be less than a threshold voltage of the switching device 11, outputs an H-lev... | 10/26/2010 |
| 7733135 | High side boosted gate drive circuit A high-side boosted gate drive circuit is disclosed. In a particular example, an output driver is described, comprising a switching device configured to selectively conduct current in response to a charge being present at a control terminal for a duty cycle, a charg... | 06/08/2010 |
| 7733134 | High speed low noise switch The present application discloses systems and methods to for a high speed electronic switch with the internal capability to reduce noise. This noise reduction is accomplished through a noise suppression circuit. A noise source is connected a signal source; a noise s... | 06/08/2010 |
| 7667503 | Semiconductor switching circuit with hysteresis There is provided a switching circuit including, a semiconductor switching circuit comprising, a transistor, a first electrode of the transistor being connected to an electrical source via a load, a second electrode of the transistor being connected to a standard po... | 02/23/2010 |
| 7564275 | Switching circuit and a method of driving a load A switching circuit includes (a) a bridge circuit (122) with a first output (266) to drive a load (130); and (b) a driver circuit (120) comprising a pair of cascode amplifiers (250, 251) receiving complementary inputs and a bias vo... | 07/21/2009 |
| 7446577 | Current driver with over-driving function in a semiconductor device Disclosed is a controller for driving current of a semiconductor device having an over-driving function, the controller comprising: a load means supplied with an internal voltage; a plurality of switching means, each of which has a first terminal connected to an ext... | 11/04/2008 |
| 7443209 | PWM LED regulator with sample and hold Improved stability in a regulator having a sample-and-hold. Coupling an input voltage to an input node of the sample-and-hold circuit is provided. Activating the sample-and hold circuit in response to the input voltage and sensing an output voltage at an output node... | 10/28/2008 |
| 7439761 | Apparatus and method for controlling a driver strength Method of controlling a driver strength and a termination impedance of a signal line of an interface, wherein the driver sends an output signal as an alternating voltage with a frequency, wherein the signal line is terminated with a termination impedance, wherein th... | 10/21/2008 |
| 7436160 | Half bridge adaptive dead time circuit and method A high voltage offset detection circuit registers the voltage at the midpoint of a switching half-bridge and may determine when the midpoint voltage reaches a given value to avoid hard-switching in the half-bridge switches. The midpoint voltage of the switching half... | 10/14/2008 |
| 7436225 | Semiconductor device having output transistor and current control circuit A semiconductor device includes: a semiconductor substrate having first and second pads; an output transistor; and a current control circuit having first and second resistors, a control signal generation circuit, first and second switching circuits. The first or sec... | 10/14/2008 |
| 7417459 | On-die offset reference circuit block A method and apparatus for an integrated circuit having a offset reference circuit block to receive an external voltage reference and output an offset reference voltage are described herein. ... | 08/26/2008 |
| 7414435 | Circuit arrangement and method for converting logic signal levels and use of the circuit arrangement A circuit arrangement for converting logic signal levels has a level converter and a mixing arrangement for influencing a pulse width. The level converter includes a first signal path and a second signal path each having a series circuit comprising two transistors o... | 08/19/2008 |
| 7411421 | Apparatus and method for generating differential signal using single-ended drivers A first pair of single-ended drivers, each having a respective output connected to a first line of a differential channel, are defined to work against each other with respect to driving a first signal on the first line of the differential channel. A second pair of s... | 08/12/2008 |
| 7408385 | Receiver circuit, differential signal receiver circuit, interface circuit, and electronic instrument A receiver circuit, which is connected with a partner transmitter circuit through a signal line and receives a signal based on current which flows through the signal line, includes a current/voltage conversion circuit which converts the current which flows through t... | 08/05/2008 |
| 7408308 | LED drive circuit, LED lighting device, and backlight To realize an LED drive circuit capable of feeding equal currents to parallel-connected LED circuits with a simple arrangement, there are provided a current source generating a temporally altering current and a first smoothing capacitor and a second smoothing capaci... | 08/05/2008 |
| 7405592 | Integrated circuit capable of minimizing switch transitions A method according to one embodiment may include switching, by an integrated circuit, a plurality of switches to generate at least one output signal having a first amplitude and a second amplitude. The method according to this embodiment may also include controlling... | 07/29/2008 |
| 7405596 | Driver circuit A driver circuit is improved in drive capability corresponding to a resolution increase for a CCD sensor while suppressing chip size of a driver circuit. A preceding-stage circuit, operating on VDD2 (>VDD) and VLOW2 ( | 07/29/2008 |
| 7394283 | CML to CMOS signal converter A signal regenerator is provided which includes a common mode reference generator and a signal converter circuit. A common mode reference voltage level is generated which is variable in relation to at least one of a process used to fabricate the common mode referenc... | 07/01/2008 |
| 7391239 | Bus driver circuit A solution for increasing the switching speed of a bus driver circuit includes a pair of transistors controlled by a pair of control circuits. Pumping circuits are placed between the control electrodes of the transistors to speed up the conduction of one of the tran... | 06/24/2008 |
| 7382116 | Semiconductor device configured to control a gate voltage between a threshold voltage and ground A pair of upper and lower semiconductor switching elements can switch between the conductive state and the non-conductive state when control voltages vary. A controller controls the levels of the control voltages to alternately turn on the upper and lower semiconduc... | 06/03/2008 |
| 7372315 | Switching circuit using semiconductor switching element A switching circuit includes a semiconductor switching element having a control electrode and a source-drain current path, the source-drain current path being connected between a voltage source and a load circuit, a parallel circuit formed by first and second transi... | 05/13/2008 |
| 7369387 | Apparatus and method for temperature-dependent transient blocking An apparatus and method for temperature-dependent transient blocking employing a transient blocking unit (TBU) that uses at least one depletion mode n-channel device interconnected with at least one depletion mode p-channel device. The interconnection is performed s... | 05/06/2008 |
| 7368957 | Capacitively coupled floating gate driver High-performance low-power isolated bootstrapped gate drive apparatus and methods are disclosed for driving high-side and floating transistors. The gate drivers use edge-triggered capacitive-coupled inputs. The gate drivers may include detection and delay circuitry ... | 05/06/2008 |
| 7369391 | Drive circuit of direct-current voltage-driven magnetic contactor and power converter In a direct-current voltage-driven magnetic contactor, a main contact is in an open circuit condition in an attraction period of an initial period of excitation by an operating coil, and in a closed circuit condition in a subsequent holding period, and a drive circu... | 05/06/2008 |
| 7365579 | Gate driving circuit A gate driving circuit has a variable current carrying path that switches a current carrying path among a driving target device, a DC power source and a reactor to operate in plural operation modes including at least a hold mode, a preparation mode, and an execution... | 04/29/2008 |
| 7365559 | Current sensing for power MOSFETs A power MOSFET, comprising main and current mirror MOSFETs, has a current sense resistance coupled between its mirror and source terminals and a monitoring circuit responsive to a first voltage dependent upon current through the current sense resistance. The circuit... | 04/29/2008 |
| 7362148 | Device for controlling a semiconductor element A control device for controlling a load drive semiconductor element for driving a load has a test operation mode for measuring a leak current of the load drive semiconductor element. In the test operation mode, a control terminal of the load drive semiconductor elem... | 04/22/2008 |
| 7362146 | Large supply range differential line driver A differential transmission line driver with supplemental current sources that overcome switching anomalies and EMU issues when the logic state of the driver is switching. During a logic transition, a current source, that is directed to the output of the driver, may... | 04/22/2008 |
