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7332957 |
Constant current circuit
A constant current circuit that generates a constant output current corresponding to an input voltage, comprises a differential amplifying unit to which the input voltage and a feedback voltage to...
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7327186 |
Fast wide output range CMOS voltage reference
A circuit is disclosed that compensates for changes in temperature as well as for fluctuations in a supply voltage (Vcc) so that voltage reference values generated thereby are maintained at...
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7327126 |
Diode circuit
A diode circuit includes a differential circuit having a first MOS transistor whose source is connected to a first input terminal, a second MOS transistor whose source is connected to a second...
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7321245 |
Pipelined AD converter capable of switching current driving capabilities
A first bias voltage generating circuit which applies a bias voltage to an amplifier circuit of an AD converter has a driving unit and a control unit. The driving unit includes a first bias circuit...
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7321255 |
Voltage generating circuit, data driver and display unit
A voltage generating circuit outputs a generated voltage corresponding to (a+b+c)-bit digital data from a plurality of generated voltages. The voltage generating circuit includes a first selector...
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7319358 |
Method and apparatus for generating an adaptive power supply voltage
In a method and apparatus for generating a power supply voltage, an integrated circuit including an adaptive power supply voltage circuit is provided where a target signal is generated representing...
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7317346 |
Selecting a bias for a level shifting device
One or more MOS devices may be used as a bias selecting circuit to pass a bias voltage from a bias generator to a level shifting circuit.
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7313048 |
Reset detection circuit in semiconductor integrated circuit
A reset detection circuit for a logic circuit and a RAM includes a first determining circuit, a second determining circuit and a reset signal generating circuit. The first determining circuit...
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7310015 |
Temperature-compensated circuit for power amplifier using diode voltage control
Provided is a temperature-compensated circuit for a power amplifier through diode voltage control, in which a first resistor (Rref), a first diode (D 1 ), and a second diode (D 2 ) are connected to...
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7309978 |
Reference voltage generating circuit with ultra-low power consumption
A reference voltage generating circuit with ultra-low power consumption, which includes: a constant current circuit part generating a first constant current from a supply voltage; a current mirror...
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7301390 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Controller for ORing field effect transistor
An ORing element for use in a power supply and/or power system. The ORing element may include a field effect transistor (FET), a first bi-polar transistor and a second bi-polar transistor. The FET...
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7285990 |
High-precision buffer circuit
A buffer circuit includes an input terminal operable to receive an input signal and an output terminal at which an output signal for the buffer circuit is provided. In the buffer circuit, three...
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7282988 |
Bandgap reference circuit
A bandgap reference circuit is proposed. To remove parasitic effects, this includes the combination of a first circuit section ( 1 ), which generates a temperature-proportional voltage, and a...
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7279960 |
Reference voltage generation using compensation current method
A reference voltage generator that may be useful in analog-to-digital converter (ADC) circuits includes compensation for errors such as from non-ideal considerations such as semiconductor...
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7279958 |
Synthesized resonation for an EL driver circuit
A driver circuit for an electroluminescent (EL) lamp that consumes less power and reduces electromagnetic interference (EMI). Electrical charge is stored during a discharge cycle of an AC signal...
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7276961 |
Constant voltage outputting circuit
A constant voltage outputting circuit has a differential amplification circuit having two inputs and an output that is connected to a gate of an output transistor. The output transistor is...
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7271646 |
Loop powered process control instrument power supply
A loop powered process instrument comprises a control circuit measuring a process variable and developing a control signal representing the process variable. An output circuit for connection to a...
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7265608 |
Current mode trimming apparatus
A current mode trimming apparatus for trimming a desired current is provided. The trimming apparatus includes a first transistor, a first resistor, an operational amplifier, a first controlled...
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7265529 |
Zero power start-up circuit
An improved start-up circuit and method for self-bias circuits is described that applies a start-up voltage and current to a self-bias circuit to initialize its operation in its desired stable...
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7262652 |
Current driver, data driver, and display device
In a current driver, a gate of a first generating transistor, gates of K driving transistors, and a gate of a second generating transistor are connected to a gate line in this order. A first...
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7262650 |
Amplitude adjusting circuit
An amplitude adjusting circuit comprises a first current mirror where a variable current of a variable current source is copied into each of 1st-3rd transistors; a second current mirror where the...
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7259614 |
Voltage sensing circuit
An auto voltage sense circuit uses voltage controlled current sources to generate a desired reference voltage level that closely tracks the variations and changes of a first voltage level and a...
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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...
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7253677 |
Bias circuit for compensating fluctuation of supply voltage
A supply voltage bias circuit includes: an output circuit which comprises a first transistor having a terminal from which output voltage or output current is supplied, the output voltage and output...
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7250811 |
Internal voltage generator of semiconductor memory device
The present invention provides an internal voltage generator for maintaining a voltage level of an internal voltage by forcibly discharging an over-supplied voltage. The internal voltage generator...
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7248097 |
Voltage-activated, constant current sink circuit
Voltage-activated and accurate current sink, and method of providing same. In one aspect, a circuit for accurately sinking current includes a zener diode coupled to a power source at the cathode of...
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7248510 |
Circuits that generate an internal supply voltage and semiconductor memory devices that include those circuits
An internal supply voltage generation circuit is provided that is within a semiconductor memory device, and that is configured to generate an internal supply voltage to a memory array in the...
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7245163 |
Overcurrent limiting controller
A semiconductor device controller includes a current supply control unit for controlling a conduction state of a semiconductor device connected to a load in response to a control signal to supply...
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7245176 |
Apparatus for generating internal voltage in test mode and its method
An apparatus for receiving a first supply voltage in order to generate an internal voltage includes a control signal generating block for receiving a control enable signal and a clock signal and...
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7242172 |
Microprocessor die with integrated voltage regulation control circuit
An integrated circuit die includes a microprocessor and a control circuit to control elements of a voltage regulator to supply power to the microprocessor.
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7239195 |
Active power supply rejection using negative current generation loop feedback
A negative current generator for an amplifier circuit including a shunt transistor, first and second mirror transistors, a current bias device, and an amplifier. The amplifier circuit includes a...
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7233195 |
Generator for supplying reference voltage and reference current of stable level regardless of temperature variation
A reference voltage and reference current generator supplies a reference voltage and a reference current, both having stable levels regardless of temperature variation. The reference voltage and...
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7230410 |
Accurate high-speed current sources
Current source embodiments are provided which generate an output current pulse whose initial and terminal slew rates are enhanced with initial and terminal generators that respectively provide an...
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7230472 |
Base current cancellation for bipolar junction transistor current summing bias voltage generator
A circuit for creating a current complementary to absolute temperature comprises a first transistor and a second transistor. A resistor for generating a current complementary to absolute...
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7227401 |
Resistorless bias current generation circuit
A bias current generating circuit generates a reliable and consistent bias current, irrespective of variation in applied power, process and temperature. In one embodiment, the bias current...
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7227404 |
Method for preventing regulated supply undershoot in state retained latches of a leakage controlled system using a low drop out regulator
A system and method are implemented for preventing regulated supply undershoot in state retained latches of a leakage controlled system, using a voltage source depending on a reference voltage that...
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7224209 |
Speed-up circuit for initiation of proportional to absolute temperature biasing circuits
A PTAT biasing circuit for use in a bandgap referenced voltage source includes a startup sub-circuit. Prior to activation of a power up indication signal, the speedup circuit forces the PTAT...
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7224208 |
Voltage regulator which outputs a predetermined direct-current voltage with its extreme variation restrained
A voltage regulator has a reference voltage generator that outputs a reference voltage based on first and second electrical source voltages, an output circuit which generates a predetermined...
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7218166 |
Current stabilization circuit, current stabilization method, and solid-state imaging apparatus
A circuit for stabilizing an electric current includes a constant voltage supplying circuit configured to supply a constant voltage, and a current generating circuit coupled to the constant voltage...
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7218170 |
Multi-pole current mirror filter
A current mirror with selectable filter poles provides a selected low pass filtering function to a DC bias signal generated by the current mirror. Coupled between a first MOSFET and second MOSFET...
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7215182 |
High-performance, low-noise reference generators
Generators are provided for supplying reference signals that are especially suited to signal conditioning systems such as analog-to-digital converters. They generate reference signals with low...
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7215180 |
Constant voltage circuit
A constant voltage circuit is disclosed that includes an output control transistor and an overcurrent protection circuit. The overcurrent protection circuit includes a proportional current...
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7215185 |
Threshold voltage extraction for producing a ramp signal with reduced process sensitivity
A system for providing a threshold voltage (V T ) includes a V T extractor that extracts the V T for a MOS transistor relative to a first voltage rail. An inversion circuit inverts the extracted...
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7215181 |
High voltage generator circuit with ripple stabilization function
The present invention disclosed herein is a high voltage generator circuit. The high voltage generator circuit includes a charge pump and a pump clock signal generator. The pump clock signal is...
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7215590 |
Semiconductor die with process variation compensated operating voltage
A semiconductor die includes at least one process monitoring circuit for evaluating at least one process parameter of the semiconductor die. The at least one process monitoring circuit can include...
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7212061 |
DPWM with leading edge blanker circuit
An apparatus for providing over current protection for a digital pulse width modulator is disclosed. The apparatus includes first logic circuitry for generating a primary interrupt indicating that...
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7208998 |
Bias circuit for high-swing cascode current mirrors
A bias circuit for providing at least first and second bias signals for biasing a cascode current source and/or a cascode current sink includes a resistive element and first, second and third...
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7202730 |
Voltage to current to voltage cell voltage monitor (VIV)
A voltage measurement circuit is provided which converts a voltage of a first voltage source connected in series with an offset voltage source to an output voltage, including first and second...
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7199645 |
Circuit of voltage multiplier with programmable output
The circuit of voltage multiplier with programmable output, which compares the feedback voltage of the output with a reference voltage, whether the pumping circuit functions to pump the output...
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7199643 |
Hot swappable pulse width modulation power supply circuits
Hot swappable pulse width modulation power supply circuits preferably realized in integrated circuit form. The hot swap circuits provide for de-bouncing, controlled charging of the input capacitor...
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