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| Number | Title | Issue Date |
| 8054121 | Limiter and semiconductor device using the same The limiter of the invention uses as a diode a stacked gate thin film transistor (TFT) including a floating gate. When the TFT including a floating gate is used, the threshold voltage Vth may be corrected by controlling the amount of charge accumulated in the floati... | 11/08/2011 |
| 8030986 | Power transistor with turn off control and method for operating A circuit has a power transistor, a driver control circuit, a variable clamp circuit and a turn-off control circuit. The power transistor has a first current electrode coupled to a first power supply terminal, a second current electrode as an output of the circuit, ... | 10/04/2011 |
| 8022745 | High voltage switch using multiple cascode circuits The present invention is a high voltage semiconductor switch that is formed from a chain of series coupled cascode circuits. In one embodiment, the switch may be a single-throw configuration coupled between an output and a direct current (DC) reference. In an altern... | 09/20/2011 |
| 8008962 | Interface circuit for bridging voltage domains The invention is directed to an interface circuit for bridging voltage domains. The interface circuit receives an input signal, having a larger voltage domain, and safely provides the signal to an electronic device which has a smaller voltage domain. The interface c... | 08/30/2011 |
| 7940106 | Apparatus for generating a correction signal An apparatus for generating a correction signal for linearizing an output signal of a non-linear element includes a correction signal generator. The correction signal generator is configured to generate a correction signal on the basis of a superposition of a digita... | 05/10/2011 |
| 7936201 | Apparatus and method for providing a signal for transmission via a signal line An apparatus for providing a signal for transmission via a signal line includes a controller circuit having an output for a signal indicating whether the signal line is or will be in an inactive state and a switching circuit coupled to the controller circuit and hav... | 05/03/2011 |
| 7920011 | Voltage trimming circuit A voltage trimming circuit is provided. The voltage trimming circuit has an input stage, an up-trimming resistor ladder, a down-trimming resistor ladder and a control means. The input stage has a first input, a second input and an output, wherein the first output is... | 04/05/2011 |
| 7843246 | Clamp control circuit having current feedback In accordance with an aspect of the present invention, an external FET driving circuit includes a driving portion, a drain-to-gate clamp portion and a current feedback portion. The driving portion provides a driving signal to the external FET. The drain-to-gate clam... | 11/30/2010 |
| 7830196 | Semiconductor device alleviating or preventing surge voltage When an insulated gate bipolar transistor turned on starts to transition to turn off, the insulated gate bipolar transistor has between the emitter and the collector a surge voltage caused in proportion to the magnitude of a current gradient provided when a current ... | 11/09/2010 |
| 7791396 | Semiconductor integrated circuit and semiconductor package module having the same A semiconductor integrated circuit includes a first clock pin controller that receives a mirror function signal and a test mode signal to generate a first input buffer control signal in response to the mirror function signal in a normal mode. A second clock pin cont... | 09/07/2010 |
| 7714633 | Limiter and semiconductor device using the same By using a stacked gate transistor including a floating gate in a limiter, a threshold voltage Vth of the stacked gate transistor can be corrected by controlling the amount of charge accumulated in the floating gate of the stacked gate transistor even in the case wh... | 05/11/2010 |
| 7683693 | Hot swap controller with zero loaded charge pump The present invention includes a pass transistor that limits current drawn from a circuit without using a series resistor and while drawing minimal current from an external supply. A current mirror of the output current is formed and compared to a reference current.... | 03/23/2010 |
| 7656217 | Voltage level clamping circuit and comparator module A voltage level clamping circuit which can be implemented in an integrated circuit (IC) and a high-speed comparator module, wherein the IC includes a parasitic diode coupled between a first voltage source and a second voltage source. The voltage level clamping circu... | 02/02/2010 |
| 7646232 | Signal adjusting circuit A signal adjusting circuit is provided. The signal adjusting circuit includes a first operational unit, a second operational unit, an auto-gain controller (AGC), a first clamp circuit, and a second clamp circuit is provided. The first operational unit performs an op... | 01/12/2010 |
| 7636005 | Active clamp for semiconductor device An active clamp circuit for avalanching and clamping voltage at a gate terminal of a first transistor connected to a power source. The active clamp circuit includes a second transistor for turning ON the first transistor; a third transistor having EPI breakdown volt... | 12/22/2009 |
| 7626439 | Cross-point adjustment circuit An amplifier stage or circuit for providing cross-point adjustment. The circuit may include a first input node configured to receive a first data signal and a second input node configured to receive a second data signal that is complementary of the first data signal... | 12/01/2009 |
| 7586357 | Systems for providing a constant resistance A system for providing a desired substantially constant resistance includes a first transistor interconnected between a first node and a second node. The system also includes a second transistor, the second transistor being diode connected, the first transistor and ... | 09/08/2009 |
| 7579893 | Mute circuit An NchMOS transistor (1) is provided for muting of an output terminal (10) to which positive and negative output signals are outputted, and a mute switch circuit (3) is provided for controlling on/off of the transistor (1) by switching a ... | 08/25/2009 |
| 7535279 | Versatile control pin electronics Versatile control pin electronics are disclosed. The control pin electronics are coupled to a control pin and allow for the passing of both analog and digital control signals. The control pin electronics work with digital logic having logic levels that are compatibl... | 05/19/2009 |
| 7511550 | Method and apparatus for improving reliability of an integrated circuit having multiple power domains An IC having improved reliability includes at least first and second circuit blocks and at least first and second power domains, the first circuit block being connected to the first power domain and the second circuit block being connected to the second power domain... | 03/31/2009 |
| 7459953 | Voltage adjusting circuit The present invention discloses a voltage adjusting circuit including a first switch element, a second switch element, a third switch element, a fourth switch element, a fifth switch element, and a sixth switch element. At first, the voltage adjusting circuit perfor... | 12/02/2008 |
| 7453308 | Circuit arrangement having a load transistor and a voltage limiting circuit and method for driving a load transistor The invention relates to a circuit arrangement having connecting terminals (K1, K2) for application of a supply voltage (V+) and having a load transistor (M) for connecting a load (Z) to the supply voltage, said load transistor having a control termina... | 11/18/2008 |
| 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 |
| 7429885 | Clamping circuit to counter parasitic coupling A clamper circuit for receiving an input signal from a victim wire, the clamper circuit being capable of receiving aggressor signals from aggressor wires, the aggressor wires being the signal wires that can potentially induce crosstalk on the victim wire and an outp... | 09/30/2008 |
| 7423476 | Current mirror circuit having drain-source voltage clamp A circuit and method for providing an output current that includes biasing an output transistor in accordance with a reference current to conduct the output current and further includes maintaining a voltage across the output transistor. One embodiment includes cond... | 09/09/2008 |
| 7423471 | Backflow preventing circuit capable of preventing reverse current efficiently This patent specification describes a backflow prevention circuit which includes a first switch configured to conduct or to shut down a current path from an input terminal to an output terminal, a logic circuit configured to binarize an input voltage at the input te... | 09/09/2008 |
| 7372291 | Circuits having precision voltage clamping levels and method A slew rate control circuit includes a receiver for receiving input signals and an output generator for generating output signals based on the input signals. The slew rate control circuit also includes an electrical interconnection coupling an output of the receiver... | 05/13/2008 |
| 7372323 | Resonance limiter circuits for an integrated circuit In one embodiment, an integrated circuit comprises resonance limiter circuits coupled to a power supply connection of the integrated circuit. The resonance limiter circuits are configured to detect oscillation on the power supply connection at a resonant frequency, ... | 05/13/2008 |
| 7372681 | Electrostatic discharge (ESD) protection device with simultaneous and distributed self-biasing for multi-finger turn-on An electrostatic discharge (ESD) protection circuit for a semiconductor integrated circuit (IC) that protects core circuitry of the IC during normal operations, and shunts ESD events during non-powered mode of the IC. The ESD protection circuitry includes a multi-fi... | 05/13/2008 |
| 7368991 | System and method for clamping a differential amplifier System and method for limiting an output signal of a differential amplifier. A preferred embodiment comprises a limit sense amplifier configured to detect when the output exceeds a permitted limit, a common mode bias current unit configured to increase a signal gain... | 05/06/2008 |
| 7368950 | High speed transceiver with low power consumption High-speed and low-power consumption CMOS receivers using adaptively-regulated power supply and pseudo differential digital logic to: 1) reduce the power consumption of the transceiver; and, 2) increase the power supply rejection (PSR) during processing the data. | 05/06/2008 |
| 7365584 | Slew-rate control apparatus and methods for a power transistor to reduce voltage transients during inductive flyback Apparatus and methods that reduce the amount of conducted/radiated emissions from a power switch (200) when a transistor (210) is switched OFF are disclosed. In addition, apparatus and methods that reduce the slew rate in a power switch when the power ... | 04/29/2008 |
| 7362141 | Logic device with low EMI A logic device with low electromagnetic interference. The logic device includes a digital logic gate, a voltage-limited circuit and a current-limited circuit. The digital logic gate provides a corresponding digital logic function. The voltage-limited circuit is conn... | 04/22/2008 |
| 7358788 | Compound semiconductor switching circuit device Protecting elements are respectively connected between a control terminal Ctl and a ground terminal GND of a logic circuit L, between a point Cp and a ground terminal GND, and between a power supply terminal VDD and a ground terminal GND thereof. With thi... | 04/15/2008 |
| 7359169 | Circuit for protecting integrated circuits against electrostatic discharges A circuit is described that protects an integrated circuit from electrostatic discharges or electrical over-stress. The circuit arrangement has first and second protective elements connected in series between a connection of the integrated circuit and a supply volta... | 04/15/2008 |
| 7359171 | Current limiting circuit and output circuit including the same A current limiting circuit capable of increasing a range of applicable load values is disclosed. An output circuit (100) may include a current limiting circuit. A current limiting circuit may include a voltage detecting circuit (1) and a voltage clampi... | 04/15/2008 |
| 7358771 | System including a single ended switching topology for high-speed bidirectional signaling A system including a single ended switching topology for high-speed bidirectional signaling includes a device coupled to a plurality of bidirectional signal paths. The device includes a plurality of voltage mode driver circuits, each coupled to a respective signal p... | 04/15/2008 |
| 7348807 | Electric circuit for providing a selection signal An electric circuit for providing a selection signal being used to select a control value of a control variable which oscillates, at steady state, about a reference value about a first control value and a second control value with a first period duration comprises a... | 03/25/2008 |
| 7348947 | Circuit, display device, and electronic apparatus A simple DA converter circuit which reads in digital voltage value data and outputs analog current value data is provided. The DA converter circuit according to the invention can be applied, for example, to a data driver circuit of an AM-OLED display device. The DA ... | 03/25/2008 |
| 7335957 | Semiconductor memory integrated circuit and layout method of the same A semiconductor memory integrated circuit includes a plurality of pads; a peripheral circuit having a plurality of control circuits which are arranged at locations adjacent to the plurality of the pads and receive a plurality of input signals to generate a plurality... | 02/26/2008 |
