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6570414 |
Methods and apparatus for reducing the crowbar current in a driver circuit
A driver circuit which has a reduced or eliminated crowbar current includes a P-channel type transistor having a source coupled to a reference voltage; an N-channel type transistor having a source...
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6570415 |
Reduced voltage swing digital differential driver
A predriver for a differential pair having a reduce voltage swing is disclosed having fast switching speed and low power consumption. The predriver includes a p-type MOS transistor, and a first and...
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6570413 |
Driver circuit for switching device
A drive circuit drives a voltage-controlled semiconductor switching device with a control terminal. The drive circuit includes a device for supplying a current to the control terminal based on an...
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6567441 |
Source follower circuit, laser driving apparatus, semiconductor laser apparatus, current-voltage convertion circuit, and light receiving circuit
Provided are a source follower circuit having a current source having its improved current characteristics, laser driving apparatus, semiconductor laser apparatus, current-voltage conversion...
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6563351 |
Semiconductor integrated circuit having output buffer
A semiconductor integrated circuit includes first and second MOS transistors and a capacitor. The first MOS transistor has a drain connected to an output terminal, a gate and a source. The second...
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6563352 |
Driver circuit employing high-speed tri-state for automatic test equipment
A driver circuit suitable for use in automatic test equipment includes a driver input for receiving an input signal and a driver output for producing an output signal. The driver input is coupled...
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6559691 |
Voltage level converting circuit
An Nch-Tr having a gate connected to an input terminal and an Nch-Tr having a gate connected to an output signal voltage supply terminal through a Pch-Tr are connected to an output terminal for...
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6559784 |
Current switching cell for digital to analog converter
A current switching cell for a multi-cell DAC, each cell having a data input and an analog output and including a current switching circuit having a current node; a current definition circuit for...
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6560290 |
CMOS driver and on-chip termination for gigabaud speed data communication
New very high-speed CMOS techniques are used to achieve a CMOS driver operating at gigabaud speeds. Such a driver may be manufactured more easily than drivers that use GaAs or bipolar techniques...
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6559702 |
Bias generator and method for improving output skew voltage
A method as well as a bias generator and associated output circuit architecture ( 300 ) that protects output skew voltage capabilities for the associated output circuit ( 304 ) to a greater extent...
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6559676 |
Output buffer circuit
An output buffer circuit includes first and second MOS transistors connected in series between a power supply and ground, a first pull up transistor coupled between the power supply and a gate of...
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6556055 |
Drive circuit for controlled edge power elements
A drive circuit for controlled edge power elements is described. In one embodiment the drive circuit for controlled edge power elements comprises: a first integrating circuit having a first input...
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6556038 |
Impedance updating apparatus of termination circuit and impedance updating method thereof
An impedance updating apparatus includes a terminator circuit for receiving and terminating an external input signal, the terminator circuit having an up-terminator and a down-terminator; and an...
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6556053 |
Half-bridge gate driver optimized for hard-switching
A half-bridge gate driver circuit including two separate floating high-side driver circuits for operating a switch circuit having a high-side switch and a low-side switch. Each of the driver...
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6556052 |
Semiconductor controller device having a controlled output driver characteristic
A semiconductor controller device to control the operation of a semiconductor memory device. The controller device includes a first output driver coupled to a first output terminal, and a second...
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6552581 |
Current recycling circuit and a method of current recycling
A process and circuitry for drawing current from a power source to produce a first operation, such as a Boolean operation, and reusing the current to generate a further operation. In other words,...
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6552582 |
Source follower for low voltage differential signaling
A source follower circuit for low voltage differential signaling (LVDS) has a low power consumption, low noise, and the ability to drive a highly capacitive load at an output port of an integrated...
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6545512 |
Low leakage sleep mode for dynamic circuits
In one aspect, a method for a sleep mode in a dynamic circuit includes driving a dynamic node to an operating voltage state during a precharge interval by precharge timing circuitry coupled to the...
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6545513 |
Electric load drive apparatus
A current control circuit controls a gate potential of a transistor to equalize a load current IL with a trapezoidal wave signal Sb. The trapezoidal wave signal Sb increases at a constant gradient...
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6541996 |
Dynamic impedance compensation circuit and method
An impedance compensation circuit and method for an input/output buffer provides dynamic impedance compensation by using programmable impedance arrays and a dynamically adjustable on-chip load....
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6542011 |
Driver circuit, receiver circuit, and semiconductor integrated circuit device
A driver circuit and receiver circuit to reduce power consumption of a digital signal transfer circuit is described. A driver circuit 20 includes a PFET 21, an NFET 23, and an NFET 22 ...
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6538479 |
Power switch driver circuit having cross-coupled buffer circuits
A driver circuit drives at least one power switch, which circuit comprises a final stage including a complementary pair of power transistors connected to said switch at a common output node....
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6538480 |
Load driving device
A load driving device capable of preventing thermal destruction even when a load short-circuit or an overcurrent occurs, thereby having improved reliability, is provided. A load driving device, in...
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6535034 |
High performance integrated circuit devices adaptable to use lower supply voltages with smaller device geometries
A high performance integrated circuit device enables scaled low voltage transistors to be utilized as transfer gates with improved speed characteristics. At least some of the transistors are formed...
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6535035 |
Driver and method for switching applications
A predriver receives control information and provides an output signal for implementing control of an associated power switch device. The control information triggers a change in the output signal,...
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6531902 |
Line driver operative from a single supply and method for supplying voltages to a load
A line driver is disclosed. Generally, the structure of the line driver contains an amplifier stage that can operate at various voltage levels. The first external supply voltage is connected to a...
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6531900 |
Negative voltage driver circuit technique having reduced current flow to the negative supply voltage source
A negative voltage driver circuit having reduced current flow to the negative supply voltage source and improved reliability comprises first, second and third series coupled switching devices...
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6531895 |
Isolated gate drive circuit having a switched input capacitor
An improved gate drive circuit powered by a DC source voltage, the drive circuit having an isolated output stage with a parallel-connected by-pass capacitor and a switched input capacitor circuit...
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6531901 |
High-speed bus capable of effectively suppressing a noise on a bus line
A high-speed bus includes a bus line to be connected with a bus driver and a bus receiver. Pull-up resistors are connected to both ends of the bus line for feeding a given pull-up electric...
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6525575 |
Output buffer circuit
An output buffer circuit ( 300 ) having an output time which may be reduced is provided. The output buffer circuit ( 300 ) can include a selector ( 1 ), a precharge circuit ( 2 ) and a buffer ( 3...
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6525602 |
Input stage for a buffer with negative feed-back
An amplifier stage for a buffer with negative feedback includes an input stage having an input terminal, an output terminal, a first and a second supply terminal, a biasing branch, a first and a...
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6522178 |
Controlling high side devices without using level shift switches
Circuits for communicating between high side devices and low side controllers without using level shifting switches are provided. A low voltage controller with time coding circuitry generates an...
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6522180 |
Bi-voltage levels switches
An apparatus to provide a novel bi-voltage level switching. The apparatus includes a first level shifting buffer coupled to a voltage supply, an input, and a first transistor. The first transistor...
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6518809 |
Clock circuit with self correcting duty cycle
An apparatus including a driver and an adjustment circuit. The driver circuit may be configured to generate an output signal in response to a clock input signal and an adjustment signal. The...
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6518808 |
Slew rate adjusting circuit and semiconductor device
In a slew rate adjusting circuit for producing a timing signal determining an output slew rate, a delay circuit for producing an output timing signal is formed of delay circuits with a variable...
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6518791 |
Gate driver for driving a switching element, and a power converter in which the gate driver and an output element are integrated in one-chip
A gate driver includes an edge detection circuit, an ON pulse generation circuit, first and second OFF pulse generation circuit and a status hold circuit. The first OFF pulse generation circuit...
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6518803 |
Output circuit
The present invention discloses an output circuit, by which it is possible to reduce power consumption while maintaining maximum voltage value to be outputted at high level. In this output circuit,...
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6515532 |
Level shift circuit for shifting voltage levels
A level shift circuit includes an initial stage circuit section which converts an input signal into a signal having a voltage level of the first high voltage power supply as a high level and a...
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6515522 |
Drive circuit of capacitive load and integrated circuit for driving capacitive load
A drive circuit capable of adjusting a capacitive load operation, for example, respective brightness of an electroluminescence (EL) element. The drive circuit is a constant current drive system and...
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6515520 |
Charge pump circuit for phase-locked loop circuitry
A phase-locked loop (PLL) includes a voltage controlled oscillator (VCO) and a pair of charge pump circuits (CP) and provides a stable oscillation clock signal. A phase comparator compares a...
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6515521 |
Semiconductor integrated circuit for low power and high speed operation
A semiconductor integrated circuit includes: a first p-channel FET having a gate controlled by a first input and having a source-drain path connected between a first operating potential point and a...
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6512334 |
Organic electroluminescence matrix-type single-pixel drivers
An organic electroluminescence (OEL) matrix-type single-pixel driver, which comprises: an OEL device, a first transistor, and a second transistor. The first transistor and the second transistor...
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6509764 |
Low component circuit for reducing power dissipation capacitance
An improved pre-driver circuit 33, which uses only three additional components to bypass the back-gate current blocking diodes for increased circuit speed during normal operation, while reducing...
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6509781 |
Circuit and method for controlling a dynamic, bi-directional high voltage analog switch
A circuit and method for controlling a switch include a level shifter that controls a dynamic, bi-directional high voltage analog switch. The level shifter generally includes transistors, input...
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6507223 |
Differential line driver having adjustable common mode operation
A differential line driver that includes a 1 st operational amplifier, a 2 nd operational amplifier, an adjustable reference module, a 1 st feedback impedance, and a 2 nd feedback impedance....
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6507226 |
Power device driving circuit and associated methods
The circuit and method translate a logic level input signal to signals at high voltage levels to drive a power device, such as a power MOSFET, while minimizing the power consumption. The circuit...
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6507225 |
Current mode driver with variable equalization
A simultaneous bidirectional data port circuit includes a current mode output driver for driving an output node and a current mode return driver for driving a differential receiver. The current...
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6504413 |
Buffer improvement
The present invention is directed to a buffer improvement for higher speed operation. A buffer may include at least two buffer stages, which may include a first buffer stage and a second buffer...
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6501305 |
Buffer/driver for low dropout regulators
The buffer/driver for low dropout regulators (LDO) uses a feedback amplifier with low output impedance to drive the gate of the pass device MP 6 of the regulator. This effectively pushes the gate...
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6498520 |
Minimizing the effect of clock skew in precharge circuit
A system for minimizing the effect of clock skew in a precharge circuit includes a switch coupled between an input to the precharge circuit and a global bitline; and a control circuit coupled to a...
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