|
Match
|
Document |
Document Title |
|
|
6816001 |
Low power charge pump circuit
A charge pump circuit, connected between a first voltage reference and an output terminal, comprises at least two parallel-coupled stages having an elementary charge pump circuit connected between...
|
|
|
6812776 |
Multiple output charge pump
A single mode buck/boost charge pump has multiple outputs and is adapted to power a plurality of separate loads, such as light emitting diodes, in a highly efficient manner. The multiple outputs...
|
|
|
6812775 |
Boosting voltage control circuit
Disclosed is a boosting voltage control circuit. A reference voltage for comparing the boosting voltage is generated using a trim bit. Further, the dropped boosting voltage and the reference...
|
|
|
6812773 |
Charge pump circuit reliability without degrading performance
A method and circuit for improving reliability in charge pumping circuits. The reliability of charge pump circuits is degraded by continual voltage stress across the gate oxides of the field effect...
|
|
|
6812774 |
Method and apparatus for generating a high voltage
A method and apparatus for generating a high voltage in a device includes a boosting means that precharges a first node, a second node and a substrate voltage of a charge transfer transistor. The...
|
|
|
6812748 |
Semiconductor device having substrate potential detection circuit less influenced by change in manufacturing conditions
A VBB control circuit includes an intermediate potential generation circuit receiving a substrate potential VBB which is a negative potential and outputting a divided potential between a power...
|
|
|
6809573 |
Circuit for generating high voltage
A circuit generating a high voltage and enabling a reduced power consumption by controlling the number of charge pumps in accordance with a current of an output terminal of a charge sensing unit....
|
|
|
6806760 |
Low-voltage booster circuits and methods of operation thereof
A voltage booster circuit includes first and second capacitors and a switch circuit coupled to the first and second capacitors and operative to apply a power supply across the first and second...
|
|
|
6806761 |
Integrated charge pump circuit with low power voltage regulation
An integrated charge pump circuit providing a regulated output voltage controlled by a voltage regulator with reduced power requirements in which the charge pump output voltage is a substantially...
|
|
|
6806759 |
Tri-state charge pump
In a device having an integrated circuit (“IC”) 310 with a single-pin output ( 316 ) at which a tri-state output is generated, a tri-state charge pump ( 370 ) is disclosed for extending the...
|
|
|
6803807 |
Negative voltage output charge pump circuit
In a negative voltage output charge pump circuit, first a capacitor C 1 is charged with a positive voltage Vin relative to a reference voltage, and then the high-potential terminal A of the...
|
|
|
6801077 |
Programmable charge pump device
The invention relates to charge pump device and a display driver with a charge pump device. Further it relates to a display module with a display driver using a charge pump device and a telecom...
|
|
|
6801078 |
Power efficient integrated charge pump using clock gating
A voltage multiplier circuit in particular for programmable memories is supplied by a low voltage. This circuit includes an oscillator which generates a clock signal and a charge pump circuit...
|
|
|
6798274 |
Booster and imaging device using booster
A booster for generating stable boosted voltage with respect to fluctuation of power supply voltage and load current. The booster has a charge pump circuit including a plurality of boosting units...
|
|
|
6798275 |
Fast, accurate and low power supply voltage booster using A/D converter
Flash memory array systems and methods are disclosed for producing a regulated boosted word line voltage for read operations. The system comprises a multi-stage voltage boost circuit operable to...
|
|
|
6798269 |
Bootstrap circuit in DC/DC static converters
A bootstrap circuit in DC/DC static converters is provided that includes a power transistor having a first non drivable terminal coupled with a first input voltage and driving means connected with...
|
|
|
6794926 |
Charge pump with current limiting circuit
A charge pump power supply includes two or more modes of operation. An input protection circuit is connected between an input of the power supply and a voltage source. The input protection circuit...
|
|
|
6794927 |
Modular charge pump architecture
An voltage regulation apparatus for generating a supply voltage internally within an integrated circuit with a modular arrangement of charge pumps. The charge pumps feature a first plurality of...
|
|
|
6794923 |
Low ripple charge pump for charging parasitic capacitances
A charge pump circuit is configured for charging of parasitic capacitances associated with charge pump capacitors in a manner that minimizes voltage ripple. The charge pump circuit is suitably...
|
|
|
6791212 |
High-efficiency regulated voltage-boosting device
A regulated voltage-boosting device provides a charge-pump circuit, which has an input terminal receiving a first voltage and an output terminal supplying a second voltage higher than the first...
|
|
|
6791394 |
Power supply control circuits
Power supply sequencing systems and methods are disclosed. In one embodiment, a programmable charge pump supplies a programmable current source, which drives an external NFET that controls whether...
|
|
|
6791395 |
Boost circuit for providing constant pump voltage
The present invention relates to a boost circuit. A precharge voltage of a positive voltage applied to a capacitor is constantly applied regardless of the power supply voltage, so that the pumping...
|
|
|
6788130 |
Efficient charge pump capable of high voltage operation
A high voltage integrated circuit operable in a system having a low voltage reference, a high voltage reference, and a ground, for providing an output voltage higher than the high voltage...
|
|
|
6784723 |
High voltage generation circuit
The present invention is a high-voltage generation circuit configured to sequentially activate a plurality of high-voltage pump circuits to precisely pump a level of high voltage. In one...
|
|
|
6781440 |
Charge pump circuit with voltage multiplier for boosting clock signal and method thereof
A charge pump circuit is provided. The charge pump circuit includes a plurality of voltage-boosting stages connected in series with each other and having a supply terminal, a control terminal, and...
|
|
|
6781439 |
Memory device pump circuit with two booster circuits
A standby-mode booster circuit is activated in both a standby mode and an active mode and boosts up a power supply voltage to generate a booster voltage and output it from an output terminal. An...
|
|
|
6774710 |
High precision charge pump regulation
A method for high precision charge pump regulation. The method of one embodiment comprises comparing an output feedback voltage with a reference voltage to determine whether the output feedback...
|
|
|
6774709 |
Voltage regulator for a charge pump circuit
A circuit for regulating an output voltage of a charge pump includes a regulator connected to an output of the charge pump. The regulator includes a voltage divider for dividing the output voltage....
|
|
|
6774707 |
Charge pump circuits and methods
Charge pump circuits and methods of the present invention step up an input voltage to provide an output voltage. The charge pump circuits have one or more stages. Each stage may include a capacitor...
|
|
|
6774708 |
Voltage boosting circuit with two main charge pumps
A voltage boosting circuit has two charge pumps connected to an output node from which a boosted potential, higher than the power-supply potential, is supplied to a load circuit. One charge pump is...
|
|
|
6771115 |
Internal voltage generating circuit with variable reference voltage
A voltage dividing circuit outputs a divided voltage of a maximum output voltage which can be driven by a boosting pump. A reference voltage generating circuit outputs a first reference voltage...
|
|
|
6771114 |
Charge pump current compensating circuit
A charge pump current compensating circuit ( 4 ) including feedback so that a difference between a charging current and a discharging current may be reduced is disclosed. Charge pump current...
|
|
|
6768359 |
Charge-pump phase-locked loop circuit with charge calibration
A charge-pump phase-locked loop (CP-PLL) circuit with charge calibration. The CP-PLL circuit keeps the phase of an output clock signal constant in a “locked” condition, and includes a...
|
|
|
6765428 |
Charge pump device for semiconductor memory
A charge pump device for supplying a boosted voltage to a memory device includes a charge pump part constructed with first to nth unit charge pumps, and a multi-level detector for detecting a level...
|
|
|
6762640 |
Bias voltage generating circuit and semiconductor integrated circuit device
A bias voltage generating circuit operates such that when a signal CKA rises to a potential VCC and a signal CKB falls to a ground potential GND, the potential of the interconnect line 12 ...
|
|
|
6762639 |
Booster circuit capable of switching between a conventional mode and a low consumption current mode
In a booster circuit comprising a first pump capacitor (CP 1 ) connected between nodes (N 1 , N 3 ) and a second pump capacitor (CP 2 ) connected between nodes (N 2 , N 4 ), the booster circuit...
|
|
|
6760262 |
Charge pump circuit adjustable in response to an external voltage source
An integrated circuit detects the voltage level of the supply voltage to the integrated circuit. Circuity on the integrated circuit including the charge pump circuity adjusts to operate more...
|
|
|
6756837 |
Booster circuit
The booster circuit includes a voltage reset circuit in a booster cell. The voltage reset circuit receives a gate voltage reset signal via a reset terminal of the booster circuit. The reset signal...
|
|
|
6756830 |
Charge pump for a current switch
A charge pump for a current switch having at least one current source includes a current summation circuit for generating an output to the current switch. A first current source supplies a first...
|
|
|
6756838 |
Charge pump based voltage regulator with smart power regulation
A charge pump based voltage regulator with smart power regulation employs an architecture that requires that the charge pump current be a linear combination of the load current and a clamp current...
|
|
|
6750695 |
Voltage pump and a level translator circuit
A voltage pump and method of driving a node to an increased potential. A periodic input signal is fed into a precharged small capacitor to create a level shifted periodic intermediate potential at...
|
|
|
6747506 |
Charge pump architecture
According to some embodiments, a charge pump includes a first transistor to steer an amount of current to a second transistor coupled to the first transistor in a first folded cascode arrangement...
|
|
|
6744224 |
Rush current limiting circuit for a PFM control charge pump
An input voltage detecting circuit for detecting an input voltage is provided inside a PFM control charge pump circuit, and potential differences between potentials appearing at gate terminals and...
|
|
|
6738271 |
Charge pump circuit DC/DC converter and power supply apparatus for liquid crystal device
A first charge pump circuit and a second charge pump circuit are complementarily driven by a first driving circuit and a second driving circuit, and step up a DC input voltage by two times. Also,...
|
|
|
6737868 |
Electrical load disconnection detecting apparatus
A disconnection detecting apparatus for detecting disconnection of lamps includes a resistor, a differential amplifier, a microcomputer, and a charge pump circuit. The resistor is connected to...
|
|
|
6738273 |
Charge pump drive signal recovery circuit
At least upper order stages of a multi-stage charge pump contain respective drive signal recovery circuits, that enable the charge pump to operate over a larger voltage range and/or be driven by a...
|
|
|
6736474 |
Charge pump circuit
A charge pump circuit includes a first capacitor having an input coupled to a first signal. A second capacitor has an input coupled to a second signal. A first diode has an anode coupled to an...
|
|
|
6737907 |
Programmable DC voltage generator system
A digitally programmable DC voltage generator system having a programming circuit for controlling a control circuit of a voltage generator system. The programming circuit receives an input control...
|
|
|
6734717 |
Charge pump circuit
A charge pump circuit includes a first switch for connecting an input terminal to a first pumping node, a first pumping capacitor for boosting up a voltage level of the first pumping node in...
|
|
|
6734718 |
High voltage ripple reduction
In a non-volatile memory, charge pumps are used to provide high voltages needed for programming memory cells that have floating gate structures. Charge pumps have a series of voltage multiplier...
|