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8102198 |
Relay circuit, information processing apparatus, and relay method
A relay circuit for relaying signal transmission between a first circuit driven by a first voltage and a second circuit driven by a second voltage different from the first voltage, the relay...
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8098088 |
High-voltage switch using three FETS
Switch circuits are disclosed, for providing a single-ended and a differentially switched high-voltage output signals by switching a high supply voltage in response to at least one logic-level...
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8063688 |
AC clamp circuit for video applications
This invention is a clamp circuit for a video input. The clamp circuit includes: a coupling capacitor; a differential amplifier comparing a video input to predetermined reference voltage; a clamp...
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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...
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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...
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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...
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8022727 |
Electronic clamps for integrated circuits and methods of use
An electronic clamp is provided for an integrated circuit having a first voltage island (1) to which an output signal (clamp out) of the clamp is applied and a second voltage island (2) operative...
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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...
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7999630 |
Electronic circuit with an absorptive distributed limiting circuit
An electronic circuit comprising a power limiter circuit. The power limiter circuit comprises a plurality of cascaded transmission line sections, each transmission line section comprising a series...
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7990188 |
Clock buffer
An apparatus is provided. The apparatus comprises a first bipolar junction transistor (BJT) differential pair having a first BJT and a second BJT, a second BJT differential pair having a third BJT...
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7973585 |
Driver circuit
A driver circuit including a pre-driver B1 that operates by receiving operating power from a first power supply VDDI, and a main-driver B2 that receives operating power from a second power supply...
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7965127 |
Drive circuit for a power switch component
A drive circuit for a power switch component.
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7952427 |
Signal amplifier circuit and optical receiver
A signal amplifier circuit includes peak value holding circuit 11 receiving positive-phase input signal, peak value holding circuit 12 receiving negative-phase input signal, adder 13 adding the...
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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...
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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...
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7924084 |
Semiconductor device
A switching transistor has its drain and source respectively connected to a gate and a source of an output transistor for supplying output current to a load, and its gate connected to an internal...
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7924056 |
Low voltage differential signalling driver
A low voltage differential signalling driver is provided in which a first output node and a second output node provide a differential signal. First differential steering switch circuitry is...
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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...
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7906995 |
Clock buffer
An apparatus is provided. The apparatus comprises a first bipolar junction transistor (BJT) differential pair having a first BJT and a second BJT, a second BJT differential pair having a third BJT...
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7888985 |
Level shift circuit
A level shift circuit shifts a first voltage level to a second voltage level that is different from the first voltage level. The level shift circuit includes a set-level circuit 21 configured to...
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7888979 |
Pad input signal processing circuit
A pad input signal processing circuit includes a control unit for setting a level of a pad output terminal to which a first control signal is input in response to a power up signal, and a signal...
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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...
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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...
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7821327 |
High voltage input receiver using low voltage transistors
A high voltage input receiver using low voltage transistors is disclosed. In one embodiment, an input receiver circuit includes a comparator circuit and an inverter circuit. The comparator circuit...
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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...
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7791399 |
Over-voltage protection circuit and LCD driving circuit using the same
An LCD driving circuit comprising an over-voltage protection circuit includes an input terminal to receive an input voltage, a voltage-dividing circuit, a voltage-stabilizing circuit including a...
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7777530 |
Comparator module
A comparator module applied to a voltage level clamping circuit which can be implemented in an integrated circuit (IC) is provided. The IC includes a parasitic diode coupled between a first voltage...
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7778348 |
Transmitter for suppressing out-of-band power for a signal
A transmitter includes: a limiter performing clipping in which an amplitude part at a level higher than an amplitude level based on a predetermined clipping level is clipped from an input signal,...
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7756216 |
Signal peak voltage suppression apparatus
As in a conventional technology, a hard clipping process and a filtering process are performed on a transmission signal. An original transmission signal is subtracted from a signal on which the...
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7741884 |
Load drive circuit
A load drive circuit which can operate at high speed with low consumption current while performing the gate-to-source over voltage protection for its load driving field-effect transistor. A Zener...
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7739643 |
Crosstalk noise reduction circuit and method
In a semiconductor device, a method for reducing the effect of crosstalk from an aggressor line to a victim line begins with sensing the occurrence of a voltage change on the aggressor line that...
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7729453 |
System and method for fast dynamic adjustment of slicing level for burst mode optical receivers
Systems and methods for determining a slicing level which is used as a threshold to determine whether timeslots of an incoming data signal contain ones or zeros. The method of one embodiment...
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7728888 |
Clamping circuit and digital camera system having the clamping circuit
A clamping circuit including: a subtracter for subtracting a clamping correction voltage from an input analog voltage signal; A/D converter for converting an analog voltage signal from the...
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7724061 |
Active clamp circuit for electronic components
An active clamp circuit for electronic components includes two sets of diode connected transistors that are inversely connected in parallel across an output of the component for providing both...
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7719339 |
Circuit arrangement and method for limiting a signal voltage
The invention relates to the field of signal processing. It is an object of the invention to provide for limitation of a signal voltage to a predetermined maximum voltage (Vmax). To this end, an...
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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...
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7701269 |
Method and system for managing voltage swings across field effect transistors
A circuit for managing voltage swings across FETs comprising a reference precision resistor, a first FET and a second FET, wherein a gate of the first FET is tied to a gate of the second FET,...
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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...
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7659745 |
Variable external interface circuitry on programmable logic device integrated circuits
A programmable logic device (“PLD”) includes circuitry for optionally and variably modifying characteristics of an input signal in any of several respects. Examples of such modifications inc...
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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...
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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...
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7642600 |
System and method for providing a low voltage thin gate input/output structure with thick gate overvoltage/backdrive protection
A system and method are disclosed for providing an integrated circuit low voltage thin gate input/output structure with thick gate overvoltage/backdrive protection. In an advantageous embodiment of...
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7635995 |
Voltage comparator
A voltage comparator where the difference of currents from transistors is converted into voltage, which is amplified and conducted to a gate terminal of a switching transistor. A source of a...
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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...
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7629834 |
Limiter circuit
A limiter circuit includes a differential amplifier circuit having a non-inverting and an inverting inputs, the inverting input fed with an input signal to the limiter circuit, a driving circuit...
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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...
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7619444 |
Circuit technique to prevent device overstress
Techniques and circuits for ensuring one or more circuit components are not subjected to voltage levels above their rated voltage tolerance due to core logic and I/O logic supply voltages reaching...
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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,...
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7583120 |
Power supply controller and method therefor
In one embodiment, an error amplifier of a power supply controller is configured to receive a current sense signal prior to the current sense signal undergoing amplification.
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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...
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