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| Number | Title | Issue Date |
| 8395435 | Switches with bias resistors for even voltage distribution Switches with connected bulk for improved switching performance and bias resistors for even voltage distribution to improve reliability are described. In an exemplary design, a switch may include a plurality of transistors coupled in a stack and at least one resisto... | 03/12/2013 |
| 8253474 | Leakage compensated electronic switch An electronic circuit for switching purposes comprises a set of at least four electronic switches. A first subset and a second subset comprise at least two electronic switches of said set, respectively. Said at least two electronic switches of said first subset are ... | 08/28/2012 |
| 8207781 | SPDT switch for radio frequency switching and method for enhancing isolation thereof Provided is an SPDT switch having improved isolation characteristics in an RF band. The SPDT switch includes a serial switching unit, a current sink unit, a switching isolation unit, and a DC blocking unit. The serial switching unit includes first and second HBTs. T... | 06/26/2012 |
| 7777553 | Simplified switching circuit An embodiment of the invention relates to a switching system that includes a depletion-mode semiconductor device, such as a silicon carbide device, coupled in series with an enhancement-mode semiconductor device, such as a silicon field effect transistor, so that a ... | 08/17/2010 |
| 7652520 | High voltage gain topology for analog circuits in short channel technologies A stacked MOS configuration for use in short channel length analog circuit technologies is provided. The stacked MOS configuration comprises a plurality of short-channel MOS transistors coupled in series and sharing a common gate terminal. In an embodiment, a first ... | 01/26/2010 |
| 7372685 | Multi-fault protected high side switch with current sense An integrated high side switch with multi-fault protection. When a fault condition is detected, the switch is turned off. The switch includes a pair of transistors that are connected such that the source of the first transistor is connected with the source of the se... | 05/13/2008 |
| 7368971 | High power, high frequency switch circuits using strings of power transistors High power, high frequency switches include a transmission line having at least three portions that are serially coupled between an input port and an output port to define at least two nodes and to carry a high power, high frequency signal between the input port and... | 05/06/2008 |
| 7366025 | Reduced power programming of non-volatile cells Methods for minimizing current consumption in a memory array during programming of non-volatile memory cells, such as NROM cells, in the array include: programming a cell without having a direct current flowing from a positive supply to ground through the array, pro... | 04/29/2008 |
| 7348855 | Bias circuitry for cascode transistor circuit An integrated circuit includes a composite transistor including at least a first transistor of a first technology type having a first group of intrinsic properties and a second transistor of a second technology type having a second group of the intrinsic properties,... | 03/25/2008 |
| 7286001 | High-frequency switching device and semiconductor device The first terminals of a plurality of resistor elements are connected to the intermediate connection points of a plurality of FETs connected in series, and a voltage, having a phase opposite to that of the voltage applied to the gate terminals of the plurality of FE... | 10/23/2007 |
| 7279943 | Circuit arrangement receiving different supply voltages A circuit arrangement (1) has a first circuit block (2) operating at a first supply voltage and a second circuit block (3) operating at a second supply voltage. The first circuit block (2) is coupled to the second circuit block (3)... | 10/09/2007 |
| 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 |
| 7256637 | High voltage switching apparatus A switching arrangement for a high voltage load provides high voltage pulses to the load. The switching arrangement includes switching modules, where n is typically (75). A load capacitance is Cd is required to avoid voltage overshoot at the load and is provi... | 08/14/2007 |
| 7245175 | Semiconductor switch A semiconductor switch includes first and second normally off type FETs Q1, Q2 and a normally on type FET Q3 connected between the first normally off type FET Q1 and the second normally off type FET Q2. Further, in the semiconducto... | 07/17/2007 |
| 7202532 | Integrated circuit An integrated circuit includes at least two circuit components formed on a common semiconductor substrate. Each circuit component has a self-contained supply voltage system. Coupling circuits couple the supply voltage systems for the at least two circuit components.... | 04/10/2007 |
| 7199635 | High-frequency switching device and semiconductor The first terminals of a plurality of resistor elements are connected to the intermediate connection points of a plurality of FETs connected in series, and a voltage, having a phase opposite to that of the voltage applied to the gate terminals of the plurality of FE... | 04/03/2007 |
| 7187226 | Anti-cross conduction drive control circuit and method An anti-cross conduction driver control circuit and method prevent the occurrence of race conditions and avoid cross-conduction between series-connected power devices, typically MOSFETs, controlled in accordance with the present invention. Individual state machines ... | 03/06/2007 |
| 7183835 | Semiconductor device which realizes a short-circuit protection function without shunt resistor, and semiconductor device module A control output signal is supplied to a gate electrode of an insulated gate transistor from a control signal output terminal of a control device, however, with regard to the insulated gate transistor, a control output signal is also influenced when that transistor ... | 02/27/2007 |
| 7167027 | Latch-type level converter and receiver circuit accurately amplifying low-amplitude signals and receiving common-mode input signals higher than a supply voltage A latch-type level converter has a signal-input transistor, a latch, and a clock-input transistor. The signal-input transistor, which is a high-voltage transistor, receives an input signal, and the latch holds data of the input signal received by the signal-input tr... | 01/23/2007 |
| 7138846 | Field effect transistor switch circuit A field effect transistor switch circuit may include: (1) first, second, and third switch terminals; (2) a first field effect transistor, a pair of the main electrodes of which are connected respectively to the first switch terminal and the second swit... | 11/21/2006 |
| 7129767 | Methods of manufacture for a low control voltage switch A low control voltage switch utilizing a plurality of field effect transistors (FETs) having a total of six gates to allow the switch to operate at a low control voltage without the need to increase device periphery or die size. Feed-forward capacitors connected bet... | 10/31/2006 |
| 7126367 | Test apparatus, test method, electronic device, and electronic device manufacturing method A test apparatus for testing an electronic device provided with a field effect transistor, which operates in response to a given test pattern, is provided, wherein the test apparatus includes a power supply for providing electric power which drives the electronic de... | 10/24/2006 |
| 7115922 | H-bridge drive utilizing a pair of high and low side MOSFET's in a common insulation housing A fully protected H-bridge for a d-c motor consists of two high side MOSFETs and a control and logic IC on a first conductive heat sink all within a first package and two discrete low side MOSFETs. The entire bridge is controlled by the IC. Shoot thru protection is ... | 10/03/2006 |
| 7106126 | Semiconductor integrated circuit device In a conventional semiconductor integrated circuit device, a means for preventing a backflow current has a high on-state resistance, which makes it impossible to reduce the voltage loss in normal operation. A semiconductor integrated circuit device of the invention ... | 09/12/2006 |
| 7102253 | MOSFET based, high voltage, electronic relays for AC power switching and inductive loads A MOSFET based, high voltage, high current AC electronic relay operating with normally closed contacts is disclosed. The relay includes at least one MOSFET switching circuit selectively switching between switch conducting and switch isolation. The at least one MOSFE... | 09/05/2006 |
| 7091751 | Low-power and low-noise comparator having inverter with decreased peak current Low-power and low-noise CDS (correlated double sampling) comparators for use with a CIS (CMOS image sensor) device are provided. A CDS comparator is constructed using one of various low-power inverters that provide decreased instantaneous transition currents at a lo... | 08/15/2006 |
| 7081786 | Level shifter and flat panel display In a level shifter, first and second PMOS transistors are connected in series between first and second power sources for supplying first high level and low level voltages, respectively, and a capacitor is formed between a contact point of the first and second transi... | 07/25/2006 |
| 7078939 | Latch-type level converter and receiver circuit accurately amplifying low-amplitude signals and receiving common-mode input signals higher than a supply voltage A latch-type level converter has a signal-input transistor, a latch, and a clock-input transistor. The signal-input transistor, which is a high-voltage transistor, receives an input signal, and the latch holds data of the input signal received by the signal-input tr... | 07/18/2006 |
| 7071763 | Transistor circuits for switching high voltages and currents without causing snapback or breakdown A switching circuit is disclosed for switching high voltages and high currents, if necessary, without causing snapback or breakdown. The disclosed high voltage, high current switching circuit comprises a first set of series-connected transistors that includes a plur... | 07/04/2006 |
| 7061302 | Semiconductor integrated circuit device In a conventional semiconductor integrated circuit device, a means for preventing a backflow current has a high on-state resistance, which makes it impossible to reduce the voltage loss in normal operation. A semiconductor integrated circuit device of the invention ... | 06/13/2006 |
| 7061735 | Semiconductor device A semiconductor device has an electrostatic protection diode in a signal input portion thereof and is accompanied by a parasitic transistor between the diode and an output control transistor. The semiconductor device further has a dummy transistor that is formed clo... | 06/13/2006 |
| 7038525 | Analog switching circuit and gradation selector circuit A gradation selector circuit provided with a resistor string circuit in which resistive elements are connected in series between a high potential power source and a low potential power source and a selector circuit which is connected to the resistor string circuit, ... | 05/02/2006 |
| 7030591 | Integrated circuit implementing protection switch for battery charging and discharging with enhanced reverse voltage protection A battery charging, discharging, and protection switch circuit with enhanced reverse voltage protection is achieved. The circuit comprises, first, field effect transistor (FET) switches having gate, source, drain, and bulk. The FET switches may comprise either NMOS ... | 04/18/2006 |
| 7019562 | Method and apparatus for locally regulated circuit According to one embodiment, a locally regulated circuit regulates current flows (IREG and IRG) through the operation of a current mirror (334, 332, 326). The regulated current flows are used to self-generate a common mode voltage (V | 03/28/2006 |
| 7019418 | Power control circuit with reduced power consumption A first conductive transistor having a high threshold value and a second conductive transistor having a low threshold value are connected in series between a first actual power supply line supplying a power supply voltage and a virtual power supply line connected to... | 03/28/2006 |
| 6917225 | Driver circuit for driving a switching transistor The driver circuit for driving a switching transistor comprises a driver transformer for driving the switching transistor and an output stage for driving the driver transformer, and an output of the driver circuit is used for providing also said switching voltage. T... | 07/12/2005 |
| 6906545 | Voltage measurement device tolerant of undershooting or overshooting input voltage of pad There is provided a voltage measurement device that is stable with respect to an undershot or overshot input voltage of a pad. The voltage measurement device includes a voltage line, a pad, a signal generating unit, a first switch, and a second switch. The first swi... | 06/14/2005 |
| 6906563 | Generating a waveform having one signal level periodically and different signal levels in other durations Generating a waveform having one signal level periodically and different signal levels in other durations. Two input signals are received, one having a desired constant level and another having desired signal levels. The desired output waveform is generated by selec... | 06/14/2005 |
| 6903596 | Method and system for impedance matched switching A system for impedance matched switching of an input signal from an input source includes a first switch, such as an FET, for controllably switching the input signal from an input terminal connected to the input source to an output terminal, the switching being cont... | 06/07/2005 |
| 6888396 | Multi-cascode transistors A cascode circuit with improved withstand voltage is provided. The cascode circuit includes three or more transistors, such as MOSFET transistors. Each transistor has a control terminal, such as a gate, and two conduction terminals, such as a drain and a source. The... | 05/03/2005 |
