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| Number | Title | Issue Date |
| 8183913 | Integrated circuits including a charge pump circuit and operating methods thereof An integrated circuit includes a first current source. A second current source is electrically coupled with the first current source via a conductive line. A switch circuit is coupled between the first current source and the second current source. A first circuit is... | 05/22/2012 |
| 8179191 | Booster circuit, semiconductor device, and electronic apparatus A conventional circuit requires a booster circuit for generating a voltage higher than an external power supply voltage, thus low power consumption is difficult to be achieved. In addition, a display device incorporating the aforementioned conventional switching ele... | 05/15/2012 |
| 8154334 | System and method for pre-charging a bootstrap capacitor in a switching regulator with high pre-bias voltage An apparatus comprises a voltage regulator including an high side switching transistor and a low side switching transistor. An high side drive controls operation of the high side switching transistor. A low side driver controls operation of the low side switching tr... | 04/10/2012 |
| 8138821 | High voltage pumping circuit A swing width control circuit and a high voltage pumping circuit using the same are disclosed. The swing width control circuit includes a swing width controller for receiving a first pumping signal having a first swing width and generating a second pumping signal ha... | 03/20/2012 |
| 8106704 | Apparatus and method for preventing excessive increase in pumping voltage when generating pumping voltage A device for generating a pumping voltage and preventing an excessive increase in the pumping voltage includes a pumping voltage output unit that outputs a pumping voltage and adjusts the level of the pumping voltage in order to maintain a target voltage. The level ... | 01/31/2012 |
| 8058923 | Charge pump circuit and slice level control circuit The invention provides a charge pump circuit which reduces rise time of an output current even when an input signal is of high frequency. PMOS1 and PMOS2 have gates connected to each other, and the gate of the PMOS1 is connected to the drain the... | 11/15/2011 |
| 8035442 | Semiconductor device A semiconductor device including a pumping capacitor for inducing a high voltage, a switching circuit for transferring the high voltage induced by the pumping capacitor and a switching control circuit for controlling the switching circuit, wherein the switching cont... | 10/11/2011 |
| 8026755 | Signal output apparatus, charge pump, voltage doubler and method for outputting current A signal output apparatus, a charge pump, a voltage doubler and a method for outputting a current are provided. The interior circuit of a chip is used to generate an oscillation signal with a swing of 0 to 2×VIN, which drives a charge-pump type voltage d... | 09/27/2011 |
| 7994846 | Method and mechanism to reduce current variation in a current reference branch circuit A feedback mechanism to reduce current variation observed in a current reference branch circuit by using body voltage control to compensate process, temperature and supply voltage variations. The current reference output voltage, which is proportional to the referen... | 08/09/2011 |
| 7978004 | Body bias coordinator, method of coordinating a body bias and sub-circuit power supply employing the same The present invention provides a body bias coordinator for use with a transistor employing a body region. In one embodiment, the body bias coordinator includes a control unit configured to control the transistor and make it operable to provide a virtual supply volta... | 07/12/2011 |
| 7969235 | Self-adaptive multi-stage charge pump A charge pump circuit for generating an output voltage is described. The charge pump includes multiple output generation stages connected in series and a corresponding set of multiple gate stages connected in series, where the output stages have the same structure a... | 06/28/2011 |
| 7948303 | Internal voltage generating circuit An internal voltage generating circuit is capable of controlling an amount of charge pumping according to an external power supply voltage. The internal voltage generating circuit includes a periodic signal generating unit configured to control generation of periodi... | 05/24/2011 |
| 7928796 | Constant voltage boost power supply A constant voltage boost power supply according to an aspect of the invention includes a voltage-controlled variable frequency oscillator that produces and supplies a clock signal and changes an oscillating frequency of the supplied clock signal according to an inpu... | 04/19/2011 |
| 7928797 | Integrated circuit with a power transistor gate bias controlled by the leakage current The invention relates to electronic integrated circuits capable of operating either in active mode or in standby mode and of having, in standby mode, a very low current consumption. According to the invention, the leakage current of a power transistor inserted in se... | 04/19/2011 |
| 7924087 | Reference buffer circuit A reference buffer circuit with high driving capability is disclosed. In which, a buffering stage has a first NMOS transistor and a first PMOS transistor to provide high and low tracking voltages respectively based on a high input voltage and a low input voltage. A ... | 04/12/2011 |
| 7920019 | Microprocessor with substrate bias clamps A microprocessor including a substrate bias rail providing a bias voltage during a first operating mode, a supply node providing a core voltage, a clamp device coupled between the bias rail and the supply node, and control logic. The control logic turns on the clamp... | 04/05/2011 |
| 7893753 | Booster circuit, semiconductor device, and electronic apparatus A conventional circuit requires a booster circuit for generating a voltage higher than an external power supply voltage, thus low power consumption is difficult to be achieved. In addition, a display device incorporating the aforementioned conventional switching ele... | 02/22/2011 |
| 7893752 | Charge pump circuit with control circuitry A reversal charge pump circuit generates a negative voltage from an input voltage received from an input terminal, and provides an output terminal with the negative voltage. The charge pump circuit achieves increased voltage stability and avoids breakdown voltage pr... | 02/22/2011 |
| 7855592 | Charge pump A charge pump circuit has at least three stages: a pre-stage, a common stage and post stage. Each stage has three devices which are common. An NMOS device, which is called the charge injection device (CID), is controlled by a PMOS device during charge injection and ... | 12/21/2010 |
| 7791403 | Transitioning digital integrated circuit from standby mode to active mode via backgate charge transfer Circuits and methods are provided for facilitating transitioning of a digital circuit from backgate biased standby mode to active mode. The digital circuit includes a semiconductor substrate, multiple n-channel transistors disposed at least partially in one or more ... | 09/07/2010 |
| 7724074 | Booster circuit, semiconductor device, and electronic apparatus A conventional circuit requires a booster circuit for generating a voltage higher than an external power supply voltage, thus low power consumption is difficult to be achieved. In addition, a display device incorporating the aforementioned conventional switching ele... | 05/25/2010 |
| 7714637 | Negative potential discharge circuit and method thereof A negative potential discharge circuit may include an internal voltage generating circuit and/or a discharge unit. The internal voltage generating circuit may be configured to generate a regulated output voltage based on a power supply voltage. The discharge unit ma... | 05/11/2010 |
| 7714638 | Eased gate voltage restriction via body-bias voltage governor An arrangement, to ease restriction upon gate voltage (Vgg) magnitudes for a dynamic threshold MOS (DTMOS) transistor, may include: an MOS transistor including a gate and a body; and a body-bias-voltage (Vbb) governor (Vbb-governor) circuit to provide a governed ver... | 05/11/2010 |
| 7671666 | Methods to reduce threshold voltage tolerance and skew in multi-threshold voltage applications A circuit and a method for adjusting the performance of an integrated circuit, the method includes: comprising: (a) measuring the performance of a first monitor circuit having at least one field effect transistor (FET) of a first set of FETs, each FET of the first s... | 03/02/2010 |
| 7652523 | Ratioed feedback body voltage bias generator A current mirror circuit includes a reference current source that generates a reference current, a reference transistor, a mirror transistor and a ratioed body bias feedback unit. The reference transistor has a first node that is coupled to the output of the referen... | 01/26/2010 |
| 7639067 | Integrated circuit voltage regulator Voltage regulator circuitry is provided that exhibits a high power supply rejection ratio and a wide output voltage range. The voltage regulator circuitry can regulate power supply voltages for circuitry on a programmable logic device such as transistor body bias ci... | 12/29/2009 |
| 7586363 | Diode connected regulation of charge pumps A circuit including a charge pump and regulation circuitry is described. The output of the charge pump is connected to provide a first output signal that is connectable to drive a load. A diode is connected to provide a second output signal of lower voltage from the... | 09/08/2009 |
| 7586362 | Low voltage charge pump with regulation Techniques of providing a low output voltage, high current capability charge pump are given. The charge pump has multiple capacitors along with switching circuitry. In an initialization phase, the first plate of each of the capacitors is connected to receive a regul... | 09/08/2009 |
| 7573321 | High voltage generator A high voltage generator is provided. The high voltage generator may comprise a high voltage output node, a plurality of pumping stages, a plurality of charge transfer elements, and a field relieving unit. The plurality of pumping stages sequentially pump charges in... | 08/11/2009 |
| 7570106 | Substrate voltage generating circuit with improved level shift circuit A substrate voltage generating circuit including level shifting circuits, a first power supply node of a first potential level VDD a second power supply node of a second potential level VSS lower than the first potential level, and an output no... | 08/04/2009 |
| 7551019 | Semiconductor integrated circuit and source voltage/substrate bias control circuit This disclosure concerns a semiconductor integrated circuit that includes a semiconductor substrate, a plurality of well regions formed on one surface of the semiconductor substrate and electrically isolated from each other, a plurality of MOS transistors formed in ... | 06/23/2009 |
| 7535282 | Dynamic well bias controlled by Vt detector The p- well back bias for NCH transistors in a DRAM sense amplifier circuit is dynamically adjusted. Preferably, during sensing, the p- well back bias for the NCH transistors of the sense amp is increased to in effect lower the threshold voltages for the NCH transis... | 05/19/2009 |
| 7498867 | Current drive circuit In the current drive section, a wiring for setting a substrate potential is separately provided from a wiring of a power potential VDD so that substrate potentials of P-channel MOS transistors within respective drive cells become the same regardless of the distance ... | 03/03/2009 |
| 7466190 | Charge pump with four-well transistors In one embodiment, a (negative-voltage) charge pump with one or more stages that receives a (high) input voltage and generates a higher-magnitude (negative) output voltage. Each stage has two capacitors for storing charges and two branches that alternate to transmit... | 12/16/2008 |
| 7439792 | High voltage generation circuit and semiconductor device having the same A high voltage generation circuit includes a pump clock generation unit configured to generate a pump clock signal in response to a pumping enable signal, a charge pump configured to generate a high voltage on an output in response to the pump clock signal, and a sw... | 10/21/2008 |
| 7432757 | Booster circuit, semiconductor device, and electronic apparatus A conventional circuit requires a booster circuit for generating a voltage higher than an external power supply voltage, thus low power consumption is difficult to be achieved. In addition, a display device incorporating the aforementioned conventional switching ele... | 10/07/2008 |
| 7432756 | Regulated charge pump circuit and application in power stages employing normally on power switching devices A charge pump circuit employs an oscillator powered by a variable positive supply voltage, storage and switching circuitry controlled by an oscillator signal from the oscillator, and a regulator that maintains a negative supply voltage generated by the storage and s... | 10/07/2008 |
| 7423472 | Power switching circuit There is provided a power switching circuit capable of completely breaking a current in an OFF state of a switch connecting power sources even when a voltage difference is generated between the power sources of a plurality of functional blocks separated from each ot... | 09/09/2008 |
| 7414897 | Internal voltage generator capable of regulating an internal voltage of a semiconductor memory device An internal voltage generator maintains stable level of an internal voltage without increasing physical area. The internal voltage generator includes an active level detector for detecting a level of an internal voltage by comparing the level of the internal voltage... | 08/19/2008 |
| 7405611 | Semiconductor integrated circuit device To save power consumption in a semiconductor integrated circuit 2A increased due to a leak current caused by a variation in a manufacturing process, temperature, and a power supply voltage. A semiconductor integrated circuit 2A, a leak current d... | 07/29/2008 |
