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| Number | Title | Issue Date |
| 8183911 | High voltage tolerance of external pad connected MOS in power-off mode An integrated circuit includes a number of pads. The integrated circuit further includes a cascode transistor having an open drain connection to a first one of the pads. A bias generator circuit is included in the integrated circuit. The bias generator circuit has a... | 05/22/2012 |
| 8149045 | Variable stage charge pump and method for providing boosted output voltage An embodiment of a variable stage charge pump includes a plurality of pump stages. Each stage is configured to generate an intermediate boosted output voltage. A pump stage selector selects the number of charge pump stages to be coupled between an input and output t... | 04/03/2012 |
| 8013661 | Negative voltage generating circuit A negative voltage generating circuit includes a pulse generator U1, a switch, a resistor, a first capacitor, a first diode, a second diode, and a second capacitor. The pulse generator includes a positive voltage input pin coupled to a power supply, an oscill... | 09/06/2011 |
| 7990203 | Internal voltage generation apparatus for semiconductor device An internal voltage generation apparatus for a semiconductor device is disclosed. The internal voltage generation apparatus includes a power-up detector for receiving an external supply voltage and generating a power-up signal, an internal voltage generator for gene... | 08/02/2011 |
| 7973591 | Internal voltage generation circuit with controlled enable pulse width The internal voltage generation circuit includes an internal voltage enable signal generation unit generating an internal voltage enable signal whose enable pulse width is controlled according to an external voltage. An internal voltage generation unit generates an ... | 07/05/2011 |
| 7956674 | Reservoir capacitor array circuit A reservoir capacitor array circuit capable of allowing an internal voltage to be maintained stably, comprises a plurality of reservoir capacitors, each of the reservoir capacitors including a switch element which is connected between a power source voltage and a pr... | 06/07/2011 |
| 7956673 | Variable stage charge pump and method for providing boosted output voltage An embodiment of a variable stage charge pump includes a plurality of pump stages. Each stage is configured to generate an intermediate boosted output voltage. A pump stage selector selects the number of charge pump stages to be coupled between an input and output t... | 06/07/2011 |
| 7956672 | Reference voltage generating circuit A reference voltage generating circuit includes a resistance dividing circuit formed with resistors connected in series. This circuit includes: a first power supply circuit that is formed with field effect transistors, and outputs voltage having a negative temperatu... | 06/07/2011 |
| 7915950 | Method and algorithm of high precision on-chip global biasing using integrated resistor calibration circuits Systems and methods for providing bias currents to multiple analog circuits are disclosed. An integrated circuit comprises a calibration circuit which compares a high tolerance external component to a plurality of internal components manufactured to span the variabi... | 03/29/2011 |
| 7852139 | Apparatus for generating internal voltage in semiconductor integrated circuit An apparatus for generating an internal voltage in a semiconductor integrated circuit includes a first voltage generating unit configured to detect a feedback voltage level of a first internal voltage and perform a pumping operation, thereby generating a first inter... | 12/14/2010 |
| 7821322 | Chip for non-contact reader/writer having power-supply management function A semiconductor integrated-circuit device rectifies a received carrier wave, generates a first power-supply voltage based on the rectified output, and selects, as a power-supply voltage required for operation, one of the first power-supply voltage and a supplied sec... | 10/26/2010 |
| 7808299 | Switching power converter with reduced switching losses A switching power converter has at least one electronic power switch. To minimize switching losses and optimize efficiency, the gate drive voltage level used to drive the electronic power switch is optimized. In an aspect, a digital controller generates optimizes th... | 10/05/2010 |
| 7800431 | Internal voltage generation circuit Various examples of internal voltage generation circuit are provided. In one example, the internal voltage generation circuit includes a level control signal generator for generating a level control signal in response to a power down mode signal, which is activated ... | 09/21/2010 |
| 7777556 | Semiconductor integrated circuit and semiconductor apparatus integrally having semiconductor integrated circuit A semiconductor integrated circuit includes a first power supply whose potential is controlled under control operation from an external control circuit, a second power supply whose potential is controlled under control operation from the external control circuit, an... | 08/17/2010 |
| 7737764 | Circuit arrangement having a changeover apparatus and method for operating a circuit arrangement A circuit arrangement having a changeover apparatus which provides a first voltage in a first state and a second voltage in a second state in order to operate a circuit, where the changeover apparatus is designed such that when changing over from the first state to ... | 06/15/2010 |
| 7705659 | Power regulator circuitry with power-on-reset control Power regulator circuitry is provided for powering loads such as memory element arrays on integrated circuits. The power regulator circuitry may have a regulated power supply circuit and a switch-based power supply circuit. Control circuitry can control the regulate... | 04/27/2010 |
| 7679427 | Semiconductor device including a bias voltage generator A semiconductor device including a bias voltage generator formed from a junction field effect transistor (JFET). The JFET includes a control gate terminal and a first and a second source/drain terminal. The first and second source/drain terminals can form a first te... | 03/16/2010 |
| 7663426 | Method and apparatus for biasing circuits in response to power up conditions A power up biasing circuit for a split power supply based circuit includes a split power supply state sensing circuit that produces a pair of complimentary control signals indicating a presence or absence of a suitable biasing power supply voltage. A pseudo power su... | 02/16/2010 |
| 7639065 | Semiconductor integrated circuit including circuit blocks and voltage controller A semiconductor integrated circuit includes a first circuit block which operates at a first internal voltage, a second circuit block which operates at a second internal voltage, is connected to an output stage of the first circuit block, and receives a signal from t... | 12/29/2009 |
| 7619463 | Power down circuit A power down circuit that provides an on-state electrical current to a load circuit that does not depend significantly on power control signal logic levels and that provides a widened off-state control signal voltage range. A power down circuit according to the pres... | 11/17/2009 |
| 7612603 | Switching frequency control of switched capacitor circuit using output voltage droop A frequency control circuit including a controlled oscillator and an amplifier circuit is disclosed for providing a clock signal to a switched capacitor circuit which divides an input voltage to provide an output voltage. The controlled oscillator has a frequency co... | 11/03/2009 |
| 7605635 | Threshold control circuitry for multiple current signal receivers Calibration circuitry and method for maintaining constant signal detection thresholds for multiple signal receivers that receive data signals in the form of current signals. A value of one of the incoming current signals having a predetermined signal pattern is dete... | 10/20/2009 |
| 7583130 | Input biasing system for bracketing a floating power supply about an input signal An input biasing system for accommodating a floating power supply to the range of an input signal includes input terminals for receiving a input signal and a biasing circuit including a first impedance connected between one of the input terminals and a floating powe... | 09/01/2009 |
| 7554383 | Chip for non-contact reader/writer having power-supply management function The present invention relates to a semiconductor integrated-circuit device capable of seamlessly switching a power source obtained by rectifying a carrier wave and an external power source. The semiconductor integrated-circuit device having a non-contact card functi... | 06/30/2009 |
| 7545200 | Leakage current compensated system A leakage current compensated multiplex driver system includes a multichannel mux having a predetermined leakage current at the switched side of each channel and a leakage current compensation circuit associated with the switched side of each channel for providing a... | 06/09/2009 |
| 7545199 | Power supply circuit for oscillator of semiconductor memory device and voltage pumping device using the same Disclosed are a power supply circuit for an oscillator of a semiconductor memory device and a voltage pumping device using the same. In the power supply circuit, a voltage divider divides a voltage between an external power supply and ground. A driver is controlled ... | 06/09/2009 |
| 7521987 | Multiple supply voltage select circuit for reduced supply voltage levels Multiple supply voltage select circuit for use with reduced supply voltage levels and method for using same are described. A first and second set of P-channel transistors are used for voltage pull-up at a common node using two supply voltages, respectively. A P-chan... | 04/21/2009 |
| 7521986 | Switch element driver circuit and semiconductor device Noise generation is reduced further. Oscillation control circuit 11 generates a modulation signal modulating oscillation frequency of an oscillation signal generated by oscillation circuit 12 and outputs modulation signal to same. Preferably, the modul... | 04/21/2009 |
| 7489181 | Circuit which can be programmed using a resistor and which has a reference current source A circuit configured to be programmed using a resistor includes an output terminal, a reference voltage source, a first circuit, and a current mirror arrangement. The output terminal is configured to be connected to a programming resistor. The reference voltage sour... | 02/10/2009 |
| 7471137 | Frequency-independent voltage divider The present invention relates to a frequency-independent voltage divider in which a compensation structure (10) for compensating a distributed parasitic capacitance of a resistor arrangement (20) is arranged between the resistor arrangement (20)... | 12/30/2008 |
| 7443231 | Low power reference voltage circuit A circuit for providing a reference voltage includes a bandgap reference circuit, the bandgap reference circuit providing a first reference voltage and a data storage. The data storage stores a digital value corresponding to the first reference voltage. A digital to... | 10/28/2008 |
| 7443228 | Leakage current prevention circuit A leakage current prevention circuit for preventing a power source from being affected by leakage current includes a first transistor, and a second transistor. A gate of the first transistor receives a control signal and a source of the first transistor is grounded.... | 10/28/2008 |
| 7443195 | Method of transparently reducing power consumption of a high-speed communication link A method of reducing power consumption while maintaining performance characteristics and avoiding costly over-design of a high-speed communication link embedded in an SOC is provided. The method includes synthesizing the communication link at a reduced voltage to de... | 10/28/2008 |
| 7437582 | Power control in a data flow processing architecture Method and system for dynamically adjusting performance of circuitry blocks are described. A first circuit domain is coupled to an interim storage device. The first circuit domain includes a first level shifter coupled to an input of a first circuitry block and a se... | 10/14/2008 |
| 7417488 | Regulation circuit for inductive charge pump Embodiments of an inductive charge pump are generally described herein. Other embodiments may be described and claimed. ... | 08/26/2008 |
| 7400483 | Method and apparatus providing final test and trimming for a power supply controller A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmabl... | 07/15/2008 |
| 7394305 | High-voltage pump switching circuit including ramp and discharge A regulator for regulating the output from a high-voltage pump, Vpump, to provide a regulated load voltage, Vpp, to a load in MOSFET integrated circuits. The regulator includes a MOSFET switch which when enabled in a first state connects Vpp to the integrated circui... | 07/01/2008 |
| 7385434 | Circuit for preventing latch-up in DC-DC converter There is provided a circuit for preventing latch-up in a DC-DC. The circuit for preventing a latch-up phenomenon in a DC-DC converter, the DC-DC converter having a first and a second DC-DC converters coupled with each other in one chip for receiving an input voltage... | 06/10/2008 |
| 7386740 | Method for efficient supply of power to a microcontroller A method and a system for supplying power to a microcontroller with a single cell. One embodiment of the present invention discloses incorporation of a power supply pump circuit with the microcontroller and their dynamic interaction. The microcontroller sends its po... | 06/10/2008 |
| 7372316 | Temperature compensated reference current generator A first order temperature compensated reference current generator includes a current device providing a controlled current, a startup circuit connected to the current device for initiating operation of the current device, and a current definition mechanism driven by... | 05/13/2008 |
