Quotables
"Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza."
Dave Barry
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8188722 | DC gain improvement of a digitally controlled DC-DC converter by LSB tuning An easy LSB tuning method is proposed for a digitally controlled DC-DC converter to increase the DC gain of the digitally controlled DC-DC converter under conditions of no-limit-cycle and a finite bit number to reduce steady-state error of the digitally controlled D... | 05/29/2012 |
| 8179112 | Direct current generator and the pulse generator thereof The present invention provides a direct current generator and a pulse generator thereof. The pulse generator includes a comparator to replace a central processing unit and a logic integrated circuit to save the costs and space required by the electronic components. ... | 05/15/2012 |
| 8179111 | Methods, systems, and devices for power-on sequence for a circuit Methods, systems, and devices are described for a power-on sequence for a circuit. A sequence generator for an electronic system may control various power domains to enter known states and prevent unwanted states as other domains of the system power-up. Regulator mo... | 05/15/2012 |
| 8179113 | Buck-Boost switching regulator and method thereof for DC/DC conversion A method for DC/DC conversion comprises operating in a Boost mode of operation or in a Buck-Boost mode of operation. Furthermore, the method comprises switching from the Boost mode of operation to the Buck-Boost mode of operation, if a desired value (VOUTR) of an ou... | 05/15/2012 |
| 8164318 | Digital control switching power supply unit A digital control switching power supply unit converts an input voltage into a desired output voltage using a digitally controlled pulse width modulation (PWM) signal according to a switching cycle. The power supply unit includes an analog-to-digital converter (ADC)... | 04/24/2012 |
| 8164290 | Fan and motor control device A fan includes a motor control device which is electrically connected with a motor and an alternating current power source. The motor control device includes a converting circuit, a power factor correction circuit and a motor controlling circuit. The voltage of the ... | 04/24/2012 |
| 8164317 | Power system with temperature compensation control The present invention discloses a power system with temperature compensation control, for selectively supplying power from an external power source or a battery to a load, or charging the battery from the external power source, the power system comprising a buck con... | 04/24/2012 |
| 8148965 | Power controller for supplying power voltage to functional block A power controller includes a digital control circuit which performs a digital control on a basis of a difference between an output voltage supplied to a power control target device and a voltage reference, so that the output voltage is equal to the voltage referenc... | 04/03/2012 |
| 8143874 | Switch-mode power supply (SMPS) controller integrated circuit determining operating characteristics from filter component information A switch-mode power supply (SMPS) controller integrated circuit (IC) provides ease of integration and SMPS designs. Value and/or types of components external to the controller IC that affect the SMPS control loop response are provided to the IC and an internal conve... | 03/27/2012 |
| 8138733 | Control circuit for DC converter A method of controlling at least one transistor of a DC voltage converter to regulate an output voltage of the DC converter, the method including determining whether the output voltage of the DC converter is within a first or second voltage range, the second voltage... | 03/20/2012 |
| 8134354 | Active transient response circuits, system and method for digital multiphase pulse width modulated regulators Disclosed is a multi-phase pulse width modulated voltage regulator and method in which transient voltage excursions or deviations that exceed the load line voltage by more than a predetermined amount are detected by an ATR circuit and a correction signal is applied.... | 03/13/2012 |
| 8129969 | Hysteretic inductive switching regulator with power supply compensation A voltage regulator includes a converter module, N comparators, and a decoder module. The converter module includes (N+1) resistors connected in series between a supply voltage and a common voltage, where N is an integer greater than 1. Each of the (N+1) resistors h... | 03/06/2012 |
| 8120345 | Semiconductor device and power supply using the same A semiconductor device for control applied to a constant-voltage power supply device includes a digital-analog converter circuit which outputs a reference voltage corresponding to a value of a first register with taking an output voltage of a reference voltage sourc... | 02/21/2012 |
| 8120344 | Power supply unit and portable device A power supply unit, adapted to provide a predetermined output voltage from its output circuit, compares a feedback voltage associated with the output voltage of the output circuit with a reference voltage so as to control the output circuit. The power supply unit i... | 02/21/2012 |
| 8115464 | Boost circuit and power supply device The objective of this invention is to provide a boost circuit that reduces power consumption and prevents malfunctioning when the input voltage becomes greater than a target voltage for the output voltage. Control circuit module 5 sets both control signals HC... | 02/14/2012 |
| 8089256 | Multiphase switching converter A method of passive current balancing for digital control of multiphase DC-DC converters is provided based upon the duty-cycle matching principle. Current balance is achieved by inserting a digital filter into the control path. Being sensorless, it is insensitive to... | 01/03/2012 |
| 8085023 | Signal generation circuit, electric power conversion control circuit and LSI for electric power conversion control The control accuracy equal with the case controlled according to a reference signal with a high clock frequency when the electric power is converted is obtained according to a reference signal with a low clock frequency. The quantity of signal S3 of the time ... | 12/27/2011 |
| 8085024 | Self-tuning digital current estimator for low-power switching converters A switched mode power can use a digital controller to control the switching of the at least one switch of the switched mode power supply. The current through the power inductor can be estimated using a self-tuning digital current estimator. ... | 12/27/2011 |
| 8067927 | Digital PWM controller A control circuit for a multi-phase converter including an analog front-end circuit for receiving and processing an output voltage and current of the converter circuits and an average output current; a digital circuit for producing an output voltage reference for se... | 11/29/2011 |
| 8067928 | DC-DC converter with gate voltage control based on output current A DC-DC converter includes a high side transistor and a low side transistor connected in series between an input potential and a grounding potential, and an LC filter connected between a connection point of the both transistors and an output terminal. A control unit... | 11/29/2011 |
| 8058858 | High efficiency voltage regulator with auto power-save mode A DC-to-DC converter comprises an error amplifier, a comparator, a PWM controller, a power switch unit, and a control signal monitoring circuit. The PWM controller receives a comparison signal from the comparator and generates a digital control signal that controls ... | 11/15/2011 |
| 8058857 | Digitally controlled switched-mode power supply The present invention relates to a digitally controlled switched-mode power supply, wherein a switched-mode power supply is provided with a control circuit, which comprises a signal amplifier unit able to receive digital signals or analog signals and a switching con... | 11/15/2011 |
| 8049481 | Adaptive multi-mode digital control improving light-load efficiency in switching power converters Adaptive multi-mode digital control schemes that improve the light-load efficiency (and thus the overall average efficiency) in switch-mode power converters without causing performance issues such as audible noises or excessive voltage ripples. Embodiments include a... | 11/01/2011 |
| 8049480 | Comparator-system DC-DC converter The comparator-system DC-DC converter 1 comprises the voltage conversion section 100 and the control unit 200. The control unit 200 comprises comparator sections 20 and 40 which compare the output voltage of the voltage conv... | 11/01/2011 |
| 8030911 | Hybrid control circuit and method A hybrid control circuit and method combine analog circuit and digital circuit to generate digital PWM signals for a multiphase DC-DC converter to generate an output voltage. For current balance control, analog current error signals are generated by the analog circu... | 10/04/2011 |
| 8026706 | Adaptive controller with mode tracking and parametric estimation for digital power converters A controller for a power stage may adaptively control power switches to improve the efficiency of power consumption by the power stage and detect continuous conduction mode (“CCM”) and discontinuous conduction mode (“DCM”) operations of the power stage witho... | 09/27/2011 |
| 8022681 | Hybrid low dropout voltage regulator circuit A voltage regulator circuit includes a digital control block, an amplifier and a transistor. The digital control block receives a first reference voltage and a feedback voltage, converts the received voltages from analog to digital signals, performs an integration o... | 09/20/2011 |
| 8004261 | Power supply unit and image forming apparatus including the same A power supply unit is provided. An output generation circuit generates an output corresponding to an supplied drive signal and supplies the output to a load. A detection circuit receives the output and generates a detection signal in response to the output. A contr... | 08/23/2011 |
| 7999526 | Digital charge-mode control of a power supply Disclosed herein are an apparatus and method for charge-mode control. An embodiment of a charge mode controller may include an analog/digital converter configured to monitor the current through a duty cycle switch and convert the current to a switch current value; a... | 08/16/2011 |
| 7994768 | Control apparatus and method of senseless MPPT control for photovoltaic power generation system The present invention relates to a senseless MPPT control apparatus of a photovoltaic power generation system and a method thereof. The control apparatus includes a current transformer, an A/D converter, a new and old current detector, a new duty ratio detector, an ... | 08/09/2011 |
| 7994769 | Switching regulator and control circuit thereof Multiple switching transistors are provided in parallel. An output circuit includes an inductor, an output capacitor, and a rectifying device. A pulse modulator generates a pulse signal with the duty ratio adjusted such that the output voltage of a switching regulat... | 08/09/2011 |
| 7990124 | Power supply circuit A power supply circuit for a motherboard includes a VRM, a first NMOS transistor, a second NMOS transistor, a first capacitor, a first induction coil, and a delay circuit. A gate of the first NMOS transistor is connected to a UGATE pin of the VRM. A source of the fi... | 08/02/2011 |
| 7990122 | Digital control switching power-supply device and information processing equipment To provide a digital control switching power-supply device capable of suitably achieving fast transient response at the time of a sudden load change. In parallel with normal digital signal processing means that outputs a PWM pulse signal having a desired duty, trans... | 08/02/2011 |
| 7990123 | DCDC converter with soft-startup and soft-transition for adjustable output voltage A method and exemplary apparatus that incorporate soft-start circuit together with adjustable output voltage control are introduced. By implementing a gradual increment of voltage steps/fast decrement, it can totally eliminate overshoot and limit in-rush current sig... | 08/02/2011 |
| 7986133 | Power supply unit To provide a power supply unit capable of realizing a multiphase power supply at low cost. For example, each of a plurality of semiconductor devices DEV[1]-DEV[n] comprises a trigger input terminal TRG_IN, a trigger output terminal TRG_OUT, and a timer circui... | 07/26/2011 |
| 7977929 | Method for regulating a voltage and circuit therefor A voltage regulator (10) having an undervoltage protection circuit 11 and a method for protecting against an output voltage out being less than a predetermined level. The voltage regulator has an undershoot limitation circuit (11) coupled betwee... | 07/12/2011 |
| 7969133 | Method and system for providing local converters to provide maximum power point tracking in an energy generating system A method for providing maximum power point tracking for an energy generating device using a local buck-boost converter coupled to the device is provided. The method includes operating in a tracking mode, which includes initializing a conversion ratio for the buck-bo... | 06/28/2011 |
| 7956592 | Monitoring and control of power converters A digital controller configured to inject a signal into a digital feedback path that facilitates regulation of a power converter and measure the corresponding phase, gain, or frequency. The digital controller may also include an adaptive tuning controller for adjust... | 06/07/2011 |
| 7944193 | Digital PWM modulator with fast dynamic response and fine resolution A pulse width (PWM) controller for a voltage converter having at least one switch, an Analog to Digital Converter (ADC) circuit for digitizing inputted state variables including a feedback voltage from an output of the voltage converter and a reference voltage for s... | 05/17/2011 |
| 7940032 | Power supply having maximum power point tracking function A power supply having a maximum power point tracking function that controls power switching so that a detected power value is within a reference range having a maximum power point in a predetermined current-voltage curve includes: a converter section switching input... | 05/10/2011 |
