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7622964 |
Analog buffer circuit
An analog buffer circuit ( 10 ) includes a first p channel field effect transistor ( 11 ), an n channel field effect transistor ( 12 ) and a second p channel field effect transistor ( 13 ). The...
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7622958 |
Semiconductor device including current-driven differential driver and method of controlling current-driven differential driver
A semiconductor device includes a current-driven differential driver and a control circuit. The current-driven differential driver is configured to generate a pair of signals having levels relative...
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7619448 |
Replica bias circuit for high speed low voltage common mode driver
A transmitter provides fast settling times, slew rate control, and power efficiency while reducing the need for large external capacitors. The transmitter typically includes a pre-driver, driver,...
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7619447 |
High voltage high side transistor driver
A high side transistor driver includes a sender module that generates a power input signal. A converter module receives the power input signal and generates an output signal that has a higher...
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7609734 |
Switched gate current driver
Embodiments of the present invention are directed to current driver circuits and methods for driving a load. The current driver circuit includes a first transistor (Q 1 ) and a second transistor (Q...
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7609100 |
On-chip signal waveform measurement apparatus for measuring signal waveforms at detection points on IC chip
An on-chip signal waveform measurement apparatus mounted on an IC chip measures signal waveforms at detection points on the IC chip. A reference voltage generator successively generates reference...
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7609098 |
Driver circuit for electronic components
A driver circuit including an amplifier, which generates a control signal from a reference signal; a driver current mirror; and a control current switch located between the amplifier and the driver...
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7609097 |
Driver circuit and a method for matching the output impedance of a driver circuit with a load impedance
A line driver circuit with an output impedance that is set to a value which is based at least in part on the impedance of one or more current sources of the driver circuit. The current source...
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7605619 |
I/O protection under over-voltage and back-drive conditions by single well charging
In an I/O driver that includes a cascoded pair of PMOS driver transistors connected to a pair of cascaded NMOS driver transistors and that defines a pad output between the PMOS and NMOS driver...
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7605618 |
Digital output driver and input buffer using thin-oxide field effect transistors
A digital output driver includes a pre-driver and a driver that may be implemented with thin-oxide FETs. The pre-driver generates first and second digital signals based on a digital input signal....
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7605610 |
Differential current driving type transmission system
There is provided a differential current driving current type transmission system. The system includes a transmission line pair for transmitting a signal by a differential scheme; a transmission...
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7602229 |
High frequency control of a semiconductor switch
Resonant gate driver circuits provide for efficient switching of, for example, a MOSFET. However, often an operation of the resonant gate driver circuit does not allow for an application where high...
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7598789 |
Signal transferring system with unequal lengths of connecting paths and method thereof
The present invention relates to a signal transferring system. The signal transferring system includes a first and second layout paths, and a first and second circuits. Lengths of the first and...
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7598780 |
Clock buffer
A clock buffer has a band-pass frequency characteristic, in which a pass band of the buffer includes a fundamental frequency of a clock and a gain for attenuating signals, that is, a gain of less...
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7598779 |
Dual-mode LVDS/CML transmitter methods and apparatus
A dual-mode LVDS/CML transmitter allows a single circuit to operate as either an LVDS transmitter or a CML transmitter. The transmitter mode can be switched by activating or deactivating...
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7598772 |
Signal driver having selectable aggregate slew rate to compensate for varying process, voltage or temperature conditions
A signal driver having a selectable aggregate slew rate, a method of driving a signal driver and a signal driver incorporating the driver or the method. The driver includes plural partial drivers...
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7595674 |
Universal serial bus (USB) driver circuit, system, and method
A driver circuit, system, and method is provided. The driver circuit includes a plurality of delay cells or circuits, each comprising a set of flip-flop circuits coupled in series to produce a...
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7595667 |
Drive circuit
A drive circuit has a level shift circuit which outputs level-shifted on and off signals each for controlling a power semiconductor element in an on or off state, a first RS flip flop which is...
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7595662 |
Transmission/reception apparatus for differential signals
A transmission device transmits differential signals that are to be output, in the form of current signals via first and second output terminals. A first switching transistor and a first output...
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7595661 |
Low voltage differential signaling drivers including branches with series resistors
A low voltage differential signal driver includes first and second current sources, a first branch and a second branch. The first branch includes at least two transistors and at least two resistors...
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7595656 |
Interface circuit and semiconductor integrated circuit
An interface circuit includes a driver circuit ( 12 ) made up of a combination of a plurality of transistors, a calibration circuit ( 14 ) for performing selection of on and off of one or more of...
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7592853 |
Drive circuit for insulated gate device
A drive circuit for an insulated gate device includes a constant current source generating a constant current, and a switching circuit, wherein a gate of the insulated gate device is connected to a...
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7592845 |
Input signal level detection apparatus and method
A method and an input signal level detection apparatus that correctly detect a level of an input signal while consuming low power apparatus including: a full-wave rectifier outputting a full-wave...
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7589571 |
Capacitively coupled high side gate driver
An improved capacitor coupled floating gate drive circuit is revealed that provides an effective drive mechanism for a floating or high side switch without the use of level shifting circuits or...
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7589570 |
System and method for synchronized current boosting
A circuit system and method are provided to modify a hard disk writer/driver pre-amplifier electronic circuit to synchronize current boosting control signals. The circuit system obtains a single...
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7589554 |
I/O interface circuit of intergrated circuit
A plurality of transistor pairs of Pch and Nch transistors are connected in series between VDD and GND. An I/O terminal is connected to each connection point of the transistor pairs. Two transistor...
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7586342 |
Programmable amplitude compensation circuit
According to one exemplary embodiment, an amplitude compensation circuit includes a first composite programmable buffer for receiving a first input signal with a first input amplitude. The...
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7586341 |
Programmable high-speed interface
Methods and apparatus for providing either high-speed, or lower-speed, flexible inputs and outputs. An input and output structure having a high-speed input, a high-speed output, a low or moderate...
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7586340 |
Driving apparatus having an adjustable driving current output
An exemplary driving apparatus capable of generating a driving current, including: an analog input generating circuit, an analog input driving circuit, and an output circuit. The analog input...
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7586339 |
Output circuit and method thereof
An output circuit and method thereof. In an example, the output circuit may include an output buffer configured to buffer output data and to transfer the buffered output data to an output node, the...
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7586338 |
Increasing the availability and redundancy of analog current outputs
There is described a method for increasing an availability and a redundancy of an analog current output as well as an analog current output with increased availability and redundancy. To improve...
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7586332 |
Off-chip driver
A driver includes a plurality of first PMOS transistors, a first resistor, a amplifier, a second PMOS transistor and a second resistor. The amplifier herein receives a reference voltage and outputs...
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7586331 |
Self-adaptive output buffer based on charge sharing
A self-adaptive output buffer for an output terminal of an electronic circuit suitable to be connected to a load is proposed. The self-adaptive output buffer includes means for sensing an...
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7586330 |
Pre-emphasis apparatus, low voltage differential signaling transmitter including the same and pre-emphasis method
A pre-emphasis apparatus of a LVDS transmitter includes a pre-emphasis signaling generation unit and a pre-emphasis current output unit. The pre-emphasis signal generation unit generates a...
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7583109 |
Apparatus and methods for monitoring parallel-connected power switching devices responsive to drive circuit parameters
An apparatus, such as an inverter or rectifier in a double-conversion UPS, includes a plurality of power switching devices, such as IGBTs, coupled in parallel. A drive circuit is coupled to the...
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7579881 |
Write driver circuit
A write driver circuit comprising a first transistor comprising a first source/drain terminal coupled to a first output, a second source/drain terminal coupled with a first reference potential, and...
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7579880 |
Circuit for driving a semiconductor element
A drive circuit is provided for driving a voltage-driven semiconductor element by producing a drive signal depending upon an input signal. The drive circuit comprises an output stage and a...
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7579873 |
Slew rate control circuit for small computer system interface (SCSI) differential driver
An interface driver circuit comprises N cascaded delay cells, each including a data bit input, a delayed data bit output that communicates with the data bit input of an adjacent one of the N...
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7579872 |
Low-voltage differential signal driver for high-speed digital transmission
A low-voltage differential signal driver for high-speed digital transmission includes a first converter operable to receive a signal in a first type and convert the signal into a second type,...
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7579871 |
Current drive circuit and method of boosting current using the same
A current drive circuit includes a differential voltage detector configured to detect a voltage level of a drive node and configured to compare the voltage level of the drive node with a voltage...
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7579786 |
Method, apparatus, and system for driving LED's
A method and apparatus for driving LED's is disclosed, comprising the steps of receiving a desired intensity value, wherein the desired intensity value represents the desired intensity for the...
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7576574 |
Constant current circuit and light emitting diode drive circuit
A constant current generator which includes a first transistor to supply current in accordance with a control signal, a second transistor that is a MOS transistor having an equal impurity type to...
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7576573 |
Wave shaping output driver to adjust slew rate and/or pre-emphasis of an output signal
Integrated circuit, system, method and machine readable media embodiments adjust a slew rate and/or a transmit pre-emphasis of an output signal at selected phases during a bit time. A timing...
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7573316 |
Control apparatus
A control apparatus comprises a voltage source, a controlling unit and an enabling unit. The controlling unit receives an input signal and generates an output signal. The enabling unit controls...
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7573304 |
Input/output circuit and input/output device
An input/output circuit has an output terminal, a first transistor, a second transistor, a pulse generator, and a bias circuit. The first transistor drives the output terminal based on a...
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7573298 |
Signal transmission circuit, data transfer control device and electronic device
A signal transmission circuit transmitting signals via first and second signal lines that provide a differential pair, includes: a current source installed between a first power source and a given...
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7570102 |
Gate driving circuit for driving a gate electrode of an electric power switching element with simple structure
A one mode of a gate driving circuit that drives a gate electrode of an electric power switching element ( 9 ), comprising drive means ( 6 ) configured to supply to the gate electrode a current in...
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7570086 |
Switching element drive circuit
There are provided: a voltage division circuit ( 13 ) that performs voltage division of the voltage applied between the main electrodes of a non-latching switching element ( 11 ) having two main...
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7570085 |
Gate driver circuit for switching device
A gate driver circuit of a voltage drive type power semiconductor switching device capable of speeding up di/dt and dv/dt even during large-current driving to thereby reduce the switching loss is...
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7567628 |
Symmetric differential slicer
A self-biasing slicer includes a self-biased differential transistor pair. As a result of the self-biasing, the slicer may receive input signals without the use of AC coupling. That is, a...
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