|
Match
|
Document |
Document Title |
|
|
6677801 |
Internal power voltage generating circuit of semiconductor device
An internal power voltage generating circuit of a semiconductor device includes a voltage dividing circuit composed of a single field effect transistor and a plurality of resistances incorporated...
|
|
|
6667652 |
Stabilized power circuit
When an output voltage detected by an output voltage detecting circuit is higher than the output voltage under normal operating condition, and lower than a predetermined value which was set to be...
|
|
|
6667653 |
Threshold voltage-independent MOS current reference
A new current reference circuit is achieved. This current reference circuit is based on MOS transistors but does not depend upon the threshold voltage. The circuit comprises, first, a first MOS...
|
|
|
6667651 |
Voltage supply circuit and control method of the same
A voltage supply circuit capable of dealing with an abrupt change of a load by controlling an amount of increase of a power source voltage to be larger than an amount of reduction, supplying a...
|
|
|
6664843 |
General-purpose temperature compensating current master-bias circuit
A temperature compensating biasing circuit is constructed by first determining a piecewise function substantially describing a required bias current with respect to temperature. Reference signals...
|
|
|
6661268 |
Charge compensation control circuit and method for use with output driver
An output driver has an output multiplexor and an output current driver. The output multiplexor receives a data signal and outputs a q-node signal. The output current driver receives the q-node...
|
|
|
6661212 |
Wideband regulator with fast transient suppression circuitry
A wideband voltage regulator is configured to provide suppression of fast transients, which can include a boosting circuit and a sensing circuit. The boosting circuit can be suitably configured to...
|
|
|
6657479 |
Configuration having a current source and a switch connected in series therewith
The configuration described is distinguished by the fact that it contains a control device which ensures that the potential which is established on the current-source side terminal of the switch...
|
|
|
6650173 |
Programmable voltage generator
The voltage generator comprises a negative feedback loop including a programmable voltage divider having a feedback node. The voltage divider comprises a programmable resistor disposed between the...
|
|
|
6639451 |
Current reference circuit for low supply voltages
A current reference circuit for low supply voltages is provided. The current reference circuit includes a series including a resistor and a diode, a current source having one terminal coupled to a...
|
|
|
6639453 |
Active bias circuit having wilson and widlar configurations
An active bias circuit having a combined configuration of the Wilson and Widlar current source configurations is provided, which makes it possible to set the output bias voltage at approximately 0V...
|
|
|
6636106 |
Arrangement for forming the reciprocal value of an input current
The invention relates to an arrangement for forming a reciprocal value of an input current (Iin), comprising: a power supply source ( 22 ); a current source ( 21 ) for generating a current (I 0 )...
|
|
|
6633197 |
Gate capacitor stress reduction in CMOS/BICMOS circuit
Method and apparatus for using a MOSFET having a thin gate oxide layer as a gate capacitor is provided. The method includes the steps of biasing at least one of a source and a drain of the MOSFET...
|
|
|
6633198 |
Low headroom current mirror
A circuit includes a current source providing an input current; first and second transistors having common control terminals and forming a current mirror generating a mirror current at the output...
|
|
|
6630858 |
Noncontact interface circuit and method for clamping supply voltage therein
A supply voltage is divided to provide a divided supply voltage. The divided supply voltage is compared with the reference voltage. The supply voltage is controlled based on the result of...
|
|
|
6630818 |
Current mirror circuits
A current mirror includes an input node to receive an input current, an output node to produce an output current, and a reference node. The current mirror also includes a potential reduction unit...
|
|
|
6628161 |
Reference voltage circuit
A depletion type PMOS transistor Q 1 and an enhancement type PMOS transistor Q 2 are serially connected to each other between power supply lines 1 and 2 . A gate electrode of the PMOS...
|
|
|
6621308 |
Supply voltage compensation circuit for high speed LVDS predrive
A circuit that provides a stable predrive to a BiCMOS LVDS output which compensates for supply voltage variations while maintaining a suitably fast signal path. The supply voltage compensation...
|
|
|
6617915 |
Low power wide swing current mirror
A low power wide swing current mirror circuit wherein the signal current is separated from the bias current, and a bias current sink is connected in parallel with a current mirror so as to shunt...
|
|
|
6614293 |
Method and apparatus for improving current matching in an electronic circuit
A Sauer diode circuit is arranged to introduce a signal into a circuit to compensate for mismatch effects to various parameters in a current mirror circuit. Current matching between transistors is...
|
|
|
6614291 |
Low voltage, high speed CMOS CML latch and MUX devices
A signal multiplexer system and a signal latch system for low voltage (V dd ≈1.2 volts) and high speed transitions between states. A dc signal isolation circuit, inserted between a clock signal...
|
|
|
6614706 |
Voltage regulating circuit, in particular for semiconductor memories
The voltage regulating circuit, in particular for semiconductor memories, has a reference-voltage generator for generating a reference voltage, an in-phase element for providing a regulated...
|
|
|
6611167 |
Balanced bi-directional current source
A balanced bi-directional current source is provided, which includes first and second current output terminals, a current control circuit, first and second amplifiers and first and second sense...
|
|
|
6606001 |
High-speed current-mirror circuitry and method of operating the same
There is disclosed high-speed current-mirror circuitry and methods of operating the same. An exemplary impedance-peaking current mirror comprises a N-channel drive transistor and a N-channel mirror...
|
|
|
6605833 |
Integrated circuit with circuit elements having different supply voltages
An integrated circuit includes first circuit elements with a supply voltage which is equal to the external supply voltage of the IC, and second circuit elements with a supply voltage which is...
|
|
|
6590445 |
Reference voltage generation circuit having reduced temperature sensitivity, an output adjusting method, and an electrical power source
A reference voltage generation circuit includes a depletion type MOS transistor having a gate connected to a source and functioning as a constant current source. At least two enhancement type MOS...
|
|
|
6580292 |
Universal PECL/LVDS output structure
The invention implements a Positive Emitter Coupled Logic (PECL) output using CMOS transistors that approximate the Motorola ECL characteristics into standard PECL termination schemes. By creating...
|
|
|
6577181 |
Clock signal generating circuit using variable delay circuit
In an high-frequency LSI chip, a clock signal generating circuit which establish accurate synchronism between an input clock signal and an internal clock signal to prevent an input circuit to cause...
|
|
|
6570438 |
Proportional to absolute temperature references with reduced input sensitivity
Proportional to absolute temperature references having reduced input sensitivity. The references utilize four bipolar transistors, at least one of which is of a different size, coupled to a...
|
|
|
6570435 |
Integrated circuit with current limited charge pump and method
One aspect of the invention is an integrated circuit ( 613 )comprising a current source ( 611 ) coupled to voltage source ( 610 ) and an output load ( 635 ). The integrated circuit ( 613 ) further...
|
|
|
6570437 |
Bandgap reference voltage circuit
A bandgap reference voltage circuit having a bandgap start-up circuit for initiating operation of the bandgap reference voltage circuit, a bandgap core circuit for developing a bandgap reference...
|
|
|
6566931 |
Semiconductor integrated circuit device with level shift circuit
A semiconductor integrated circuit device, which is driven using Vd 1 supplied to external power supply terminal 3 and which includes internal circuit 10 with desired functions, such as a CPU,...
|
|
|
6566938 |
System for a constant current source
A system for a constant current source circuit utilizing CMOS technology. The system includes a constant current source circuit that includes a bias circuit that outputs a bias signal and a switch...
|
|
|
6563368 |
Integrable current supply circuit with parasitic compensation
Integrable current supply circuit An integrable current supply circuit for feeding a supply current to a signal line ( 12 ) having a current source ( 14 ) for producing a source current which is...
|
|
|
6563369 |
Active current mirror circuit
A current summing circuit includes an active cascode pair of transistors having a source-drain junction connected to a summing node to receive an input current at the source-drain junction to...
|
|
|
6559684 |
System and method for current sensing
A system and method for current sensing which is substantially consistent over device, temperature, and process variations is provided. A current sensing system includes a first switch coupled to...
|
|
|
6559711 |
Circuit for providing a constant current
Two substantially identical currents (I 1,a , I 1,b ) are subtracted from each other, while being generated by elements ( 10, 11 ) in such a way that noise in the current value of said two currents...
|
|
|
6556070 |
Current source that has a high output impedance and that can be used with low operating voltages
An electrical current source with a high output resistance has a current determining transistor and a regulating switch. The regulating switch has an amplifier circuit with transistors and a...
|
|
|
6538495 |
Pair of bipolar transistor complementary current sources with base current compensation
A pair of complementary current sources includes a reference current source, and two complementary current mirrors having the same number of branches provided with bipolar mirror transistors. The...
|
|
|
6535019 |
Switching control method of a level shifter and corresponding improved self-controlled level shifter
A switching control method for level shifter includes a phase of de-selection of a high voltage value at an output terminal of the shifter using a selection signal. The de-selection phase may...
|
|
|
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...
|
|
|
6531913 |
Low voltage charge pump
A charge pump circuit that can be used in a phase-locked loop circuit provides a differential output signal that has a common mode voltage. The charge pump includes a common mode feedback circuit...
|
|
|
6531857 |
Low voltage bandgap reference circuit
A bandgap reference circuit that uses reduced substrate area while requiring relatively low voltage. The circuit may include a bipolar transistor with a resistor electrically connected across the...
|
|
|
6528978 |
Reference voltage generator
A reference voltage generating circuit of the present invention includes a start-up circuit connected between a power supply voltage and a ground voltage for generating a start-up voltage, a bias...
|
|
|
6529065 |
Circuit configuration for controlling the operating point of a power amplifier
A circuit configuration for actuating a power amplifier transistor is described, which is intended to ensure that the power consumption is as low as possible while having a variable output power....
|
|
|
6522175 |
Current/voltage converter and D/A converter
A current/voltage converter includes a current source connected to a first node; a first transistor element connected between the first node and a power supply or ground; a second transistor...
|
|
|
6518832 |
Mechanism for minimizing current mirror transistor base current error for low overhead voltage applications
To mitigate against base current errors in a current mirror circuit that has limited overhead voltage, a compensated current mirror circuit includes a complementary polarity base current error...
|
|
|
6515461 |
Voltage downconverter circuit capable of reducing current consumption while keeping response rate
In a VDC circuit, a differential amplifier compares a first reference potential with an internal supply potential to generate a control signal according to a result of the comparison. A constant...
|
|
|
6515919 |
Radio frequency powered voltage pump for programming EEPROM
There is provided an RF-powered, RFID transponder operable in either a high frequency or low frequency band. The transponder utilizes an EEPROM which may be programmed. The high voltage required...
|
|
|
6515537 |
Integrated circuit current source with switched capacitor feedback
An integrated circuit current source includes an oscillator, a capacitor, a capacitor charging circuit and a capacitor discharging circuit, all formed on an integrated circuit substrate. The...
|