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| Number | Title | Issue Date |
| 8188784 | Power circuit A system for providing a desired power to a load. The system includes: a current detection module configured to generate a current signal based on a current flowing through the load; a voltage detection module configured to generate a voltage signal based on a volta... | 05/29/2012 |
| 8169257 | System and method for communicating between multiple voltage tiers A system includes first, second, and third circuits and first and second capacitors. The first capacitor has a first power supply terminal coupled to positive power supply terminal, a second power supply terminal, and an input/output. The second capacitor has a firs... | 05/01/2012 |
| 8138823 | Voltage generating circuit and ultrasonic diagnosing device A voltage generating circuit generates a voltage for driving an ultrasonic oscillator, and includes a multi-stage connected power supply circuit without a transformer. ... | 03/20/2012 |
| 8130029 | Circuit for switchably connecting an input node and an output node A switching circuit for switchably connecting an input node and an output node. The switching circuit comprises a switch operable to switchably connect the input node to the output node in response to a switching signal. A sensor is provided for sensing the voltage ... | 03/06/2012 |
| 8081025 | Bias setting device A biasing device can supply a bias voltage to bias-able element by coupling a bias circuit to the bias-able element, coupling a state adjusting device to the biasing circuit, configuring the state adjusting device to 1) increase an initial biasing voltage by a first... | 12/20/2011 |
| 8058924 | Method and apparatus for a process, voltage, and temperature variation tolerant semiconductor device A method and apparatus to reduce the degradation in performance of semiconductor-based devices due to process, voltage, and temperature (PVT) and/or other causes of variation. Adaptive feedback mechanisms are employed to sense and correct performance degradation, wh... | 11/15/2011 |
| 8049554 | Integrated circuit An integrated circuit includes a first internal voltage generating unit configured to receive an external power and to generate a first internal voltage, and a second internal voltage generating unit configured to receive the first internal voltage, and to generate ... | 11/01/2011 |
| 8040177 | Internal voltage generating circuit of semiconductor device An internal voltage generating circuit of a semiconductor device includes a first voltage driver configured to pull up an internal voltage terminal during a period where a level of the internal voltage terminal is lower than a target level, and a second voltage driv... | 10/18/2011 |
| 8040176 | Internal voltage generating circuit A temperature-compensated internal voltage having a desired compensation range is generated with a sufficient controllability and stability. A temperature characteristic adding circuit generates a standard voltage having temperature dependence from a reference volta... | 10/18/2011 |
| 8013668 | Bias current compensation device and method A compensation device that can include a bias-able device, a bias circuit that provides the bias-able device with a bias current, a signal conditioner selectively coupled to the bias-able device, and an emulator. The signal conditioner and emulator can divert curren... | 09/06/2011 |
| 8004349 | Power supply unit High-accuracy overcurrent detection is performed, while a loss resulting from the current detection is significantly reduced. A switch section outputs the voltage between the both terminals of a current detection resistor using an AND signal between an output signal... | 08/23/2011 |
| 8004348 | Semiconductor circuit device controlling power source voltage A control circuit controls a power-source-voltage feed circuit, and controls a power source voltage fed to a target circuit. A reference-speed monitor monitors whether or not a delay time of a critical path in the target circuit is satisfies a required operational s... | 08/23/2011 |
| 7986180 | Semiconductor memory device having internal voltage generator and method for driving the same Embodiments of the present invention are directed to provide an internal voltage generator of a semiconductor memory device for generating a predetermined stable level of an internal voltage. The semiconductor memory device includes a control signal generator, an in... | 07/26/2011 |
| 7961037 | Intermediate potential generation circuit Provided is an intermediate potential generation circuit with a lower power supply potential. The intermediate potential generation circuit includes: a current mirror circuit including a first transistor and a second transistor each having a source input with a powe... | 06/14/2011 |
| 7956676 | Semiconductor apparatus A semiconductor apparatus includes a constant voltage circuit that converts an input voltage and outputs a prescribed constant voltage. The constant voltage circuit includes an output transistor that receives an input of a control signal and outputs a current (from ... | 06/07/2011 |
| 7948305 | Voltage regulator circuit A circuit having a substrate, a generator with a field effect transistor (FET) portion and a heterojunction bipolar transistor (HBT) portion integrated in the substrate, a voltage-to-voltage conveyor integrated in the substrate, a bias circuit, and a power amplifier... | 05/24/2011 |
| 7944284 | System and circuit for a virtual power grid A system and circuit for virtual power grid is disclosed. In one embodiment, a switch system for a virtual power grid includes a first transistor for connecting a power supply to a node of a virtual power grid for an isolated region of circuitry via the first transi... | 05/17/2011 |
| 7907002 | Output level voltage regulation A circuit adapting pin output levels to a reference level in which a digital comparator compares an output voltage from an output pin of a device to a reference voltage level. The comparator, relying on the polarity of the comparator output as well as the registered... | 03/15/2011 |
| RE42116 | Low dropout regulator capable of on-chip implementation A low-dropout regulator comprises a high-gain error amplifier having a differential input stage and a single-ended output, a high-swing high-positive-gain second stage with input connecting to the output of the error amplifier and a single-ended output, a p-type MOS... | 02/08/2011 |
| 7872518 | Circuit and method for detecting, whether a voltage difference between two voltages is below a desired voltage difference, and protection circuit A circuit for detecting, whether a voltage difference is below a desired voltage difference comprises a voltage shift resistor, a current provider and a detection circuit. The current provider provides a current flowing through the voltage shift resistor such that t... | 01/18/2011 |
| 7859324 | Power supply unit High-accuracy overcurrent detection is performed, while a loss resulting from the current detection is significantly reduced. A switch section outputs the voltage between the both terminals of a current detection resistor using an AND signal between an output signal... | 12/28/2010 |
| 7859323 | Negative output regulator circuit and electrical apparatus using same A negative output regulator circuit (24) is provided with clamp circuits CLP (X1, X2, Q1, Q2), which detect a current generated when the output of a negative voltage (VM) is stopped and fixing the voltage of an output end (T2 | 12/28/2010 |
| 7859325 | CPU core voltage supply circuit A CPU core voltage supply circuit includes a reference voltage generator, a differential operation amplifier, a power element, a feedback circuit and a first capacitor. The reference voltage generator outputs a first reference voltage. The differential operation amp... | 12/28/2010 |
| 7847622 | Electric circuit device An electric circuit device includes: a power supply line; a load circuit; a current supply controller which compares a voltage of the power supply line with a certain voltage; and a current supply circuit which supplies a electric current from the power supply line ... | 12/07/2010 |
| 7843255 | Charge pump regulator and circuit structure There is disclosed a regulator for a charge pump having an input signal and generating an output signal at a value greater than the input signal. The charge pump comprises at least a capacitor and at least a device for charging and discharging the capacitor; the reg... | 11/30/2010 |
| 7843256 | Internal voltage generator An internal voltage generator includes a pull-up driver to pull-up drive a supply terminal of an internal voltage, a pull-down driver to pull-down drive the supply terminal of the internal voltage, a pull-up driving control unit to turn on the pull-up driver when a ... | 11/30/2010 |
| 7839205 | Step-down circuit, semiconductor device, and step-down circuit controlling method A step-down circuit is connected between a power supply node for supplying a supply voltage and an internal power supply line for supplying a power to the object circuit and steps-down the supply voltage, and supplies the stepped-down voltage to the object circuit t... | 11/23/2010 |
| 7839203 | Adaptive capacitor charge/discharge network An adaptive capacitor charge/discharge network tailors the rate-of-change of a capacitor. The network includes two circuit groups with two or more parallel circuit branches, each branch including a current source and a controllable switch connected in series. The pa... | 11/23/2010 |
| 7839204 | Core voltage generation circuit and semiconductor device having the same A semiconductor memory device includes a voltage detector configured to detect a voltage level of an external power supply voltage, a first core voltage generation driver configured to operate when the external power supply voltage is in a high level region and a se... | 11/23/2010 |
| 7830201 | Internal voltage control device capable of reducing current consumption and semiconductor memory device using the same An internal voltage control apparatus capable of reducing current consumption and a semiconductor memory device using the same includes an enable signal generating unit for generating an enable signal in response to an active signal and an internal voltage driving u... | 11/09/2010 |
| 7830200 | High voltage tolerant bias circuit with low voltage transistors A circuit (200) can include a bias protection circuit (204) and a reference circuit (202). A bias protection circuit (204) can generate an internal power supply voltage (Vsuppi) from a higher device power supply (Vcch) with low voltage tr... | 11/09/2010 |
| 7816977 | Core voltage generator Core voltage generator including a comparison unit configured to compare a reference voltage with a feedback core voltage to output a difference between the reference voltage and the feedback core voltage, an amplification unit configured to output a core voltage by... | 10/19/2010 |
| 7808306 | Power supply voltage control apparatus A power supply voltage control apparatus capable of freely setting a clock period setting margin according to a system clock frequency, and capable of converging power supply voltage to minimum power supply voltage where normal operation is possible in a short perio... | 10/05/2010 |
| 7791405 | Method for controlling an output voltage and voltage controller A voltage controller for controlling an output voltage to a predetermined value. The voltage controller has a first terminal configured to connect a supply voltage, a second terminal configured to output the output voltage, a control voltage generating unit configur... | 09/07/2010 |
| 7764112 | Internal voltage discharge circuit and its control method An internal voltage discharge circuit includes a differential comparator for differentially comparing a reference voltage with a feedback voltage to generate a discharge control voltage, a level detector for detecting a level of external power supply voltage and a d... | 07/27/2010 |
| 7764110 | Internal voltage generating circuit of semiconductor device An internal voltage generating circuit of a semiconductor device includes a first voltage driver configured to pull up an internal voltage terminal during a period where a level of the internal voltage terminal is lower than a target level, and a second voltage driv... | 07/27/2010 |
| 7764111 | CPU core voltage supply circuit A CPU core voltage supply circuit includes a reference voltage generator, a differential operation amplifier, a power element, a feedback circuit and a first capacitor. The reference voltage generator outputs a first reference voltage. The differential operation amp... | 07/27/2010 |
| 7741900 | Bias setting device A biasing device can supply a bias voltage to bias-able element by coupling a bias circuit to the bias-able element, coupling a state adjusting device to the biasing circuit, configuring the state adjusting device to 1) increase an initial biasing voltage by a first... | 06/22/2010 |
| 7733163 | Bias current compensation device and method A compensation device that can include a bias-able device, a bias circuit that provides the bias-able device with a bias current, a signal conditioner selectively coupled to the bias-able device, and an emulator. The signal conditioner and emulator can divert curren... | 06/08/2010 |
| 7728653 | Display and method of driving the same A transistor causes fluctuation in the threshold and mobility due to the factor such as fluctuation of the gate length, the gate width, and the gate insulating film thickness generated by the difference of the manufacturing steps and the substrate to be used. As a r... | 06/01/2010 |
