Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 8154262 | Control system provided with power supply unit operating based on operation modes including standby mode A power supply unit for supplying electric current of a supply voltage to a control unit in an electronic control system has switching regulator dropping an input voltage to an intermediate voltage, a first series regulator producing electric current of the supply v... | 04/10/2012 |
| 8134350 | Device for precharging a voltage converter, and an assembly and aircraft including such a device A device for precharging a voltage converter is provided with a precharging unit, capable of assuming a closed state, as well as with a control unit for the precharging unit, the precharging unit being capable of operating according to a precharging state limiting t... | 03/13/2012 |
| 8115461 | Power supply circuit and battery device A power supply circuit with low noise and low power consumption and a battery device using the power supply circuit. If a voltage VDD is higher than a prescribed voltage, a charge pump circuit 140A is operated in “½ mode” (a step-down ratio of “2”), ... | 02/14/2012 |
| 8111054 | Voltage conversion device capable of enhancing conversion efficiency A voltage conversion device capable of enhancing conversion efficiency includes a charge pump for generating output voltage linear to input voltage according to the input voltage, a feedback unit for generating a feedback signal according to the output voltage gener... | 02/07/2012 |
| 8102162 | Buck controller having integrated boost control and driver An integrated circuit controller for controlling the operation of a voltage converter which includes a first comparator for comparing a voltage associated with an input of a boost converter with a threshold voltage and generating a control signal in response thereto... | 01/24/2012 |
| 8085012 | Semiconductor integrated circuit and sensor driving/measuring system In a sensor driving/measuring system, specifications required by a sensor which requires a high applied voltage are implemented with const increase suppressed. A semiconductor integrated circuit for use in a sensor driving/measuring system driven by a battery includ... | 12/27/2011 |
| 8072196 | System and method for providing a dynamically configured low drop out regulator with zero quiescent current and fast transient response A system and a method are disclosed for providing a dynamically configured low drop out regulator that has zero quiescent current and a fast transient response. A power supply control circuit is provided that comprises a switcher circuit and a low drop out regulator... | 12/06/2011 |
| 8054053 | Audio apparatus, switching power supply, and switching control method When power is turned on and in a state in which a power supply voltage is not supplied from the switching power supply to the second clock generating section, the first clock generating section generates a first clock signal with a frequency that is preset in the fi... | 11/08/2011 |
| 8040115 | Multiple branch alternative element power regulation A power regulation circuit includes at least a first regulator connected to a second regulator in series forming a first regulator pair and a third regulator connected to a fourth regulator in series forming a second regulator pair. The first regulator pair is conne... | 10/18/2011 |
| 8004253 | Duty cycle dependent non-linear slope compensation for improved dynamic response A two-stage converter including a buck converter and a DC-DC converter that receives power from the buck converter. The DC-DC converter generates an output voltage of the two-stage converter. A buck control circuit generates a drive signal for the buck converter. Th... | 08/23/2011 |
| 8004254 | Power supply circuit A power supply circuit includes a first voltage regulator, a second voltage regulator, and a voltage comparator. The first voltage regulator is connected to a direct current power supply, and regulates a direct current supply voltage down to a first voltage level to... | 08/23/2011 |
| 7977927 | Step-up DC/DC voltage converter with improved transient current capability A DC/DC voltage converter includes an inductive switching voltage regulator and a capacitive charge pump connected in series between the input and output terminals of the converter. The charge pump has a second input terminal connected to the input terminal of the c... | 07/12/2011 |
| 7969129 | Semiconductor circuit and switching power supply apparatus To provide a power supply apparatus which realizes a high-speed response, a stable operation, and a low output ripple with low power consumption. The first stage switching regulator receives an input voltage and forms a first voltage. The second stage switching regu... | 06/28/2011 |
| 7969128 | Bi-directional power supply with isolated output A capacitor isolated electronic power converter includes a direct current power source in series with a first inductor; and a first switch for switching contact with a second inductor in series with the power source return; an output load in series with a third indu... | 06/28/2011 |
| 7965066 | Voltage regulation system One aspect of the invention relates to a voltage regulation process as well as to a voltage regulation system. A first voltage, present at an input of the voltage regulating system, is changed into a second voltage, which can be tapped at an output of the voltage re... | 06/21/2011 |
| 7936154 | Regulator and high voltage generator A regulator included in a high voltage generator for supplying a high voltage to a semiconductor memory device is disclosed. The regulator includes a voltage dividing circuit configured to divide an output voltage of a charge pump, a comparing circuit configured to ... | 05/03/2011 |
| 7932705 | Variable input voltage regulator A variable input voltage regulator includes a first circuit configured to convert a first voltage from a first voltage source to a first current, and a second circuit electrically coupled to the first circuit and configured to mirror the first current to a voltage o... | 04/26/2011 |
| 7893668 | Voltage regulator with high voltage protection A method for regulating a voltage in an integrated circuit device includes providing a first regulated output based upon a first voltage input range and subsequently receiving the first regulated output and providing a second regulated output based upon a second vol... | 02/22/2011 |
| 7888919 | Apparatus, system, and method for an adaptive high efficiency switching power supply An apparatus, system, and method are disclosed for an adaptive high efficiency switching power supply. The switching power supply has a regulation stage with a stage controller that operates to regulate a voltage of the regulation stage relative to a reference volta... | 02/15/2011 |
| 7863871 | Apparatus and method for monitoring for a maintain power signature (MPS) of a powered device (PD) in a power source equipment (PSE) controller Power over Ethernet (PoE) communication systems provide power and data communications over the same communications link, where a power source device (PSE) provides DC power (for example, 48 volts DC) to a powered device (PD). The DC power is transmitted simultaneous... | 01/04/2011 |
| 7839128 | Bidirectional power supply device In a bidirectional power supply device, a DC-DC converter is connected such that the longer an ON time of the first switch becomes, the higher a voltage of a second positive terminal and a second negative terminal becomes. When stopping the supply of power from a fi... | 11/23/2010 |
| 7839127 | Power supply circuit for motherboard A power supply circuit for a motherboard includes an input/output (I/O) controller, a power circuit providing a working voltage for the I/O controller, and a first resistor. The I/O controller includes an I/O controller voltage pin and an I/O controller case open de... | 11/23/2010 |
| 7834601 | Circuit and method for reducing output noise of regulator A circuit and a method for reducing output noise when a pulse width modulation mode is started. A pulse width modulation circuit generates a first pulse signal having a duty cycle that is in accordance with an output voltage of a regulator circuit. A drive circuit g... | 11/16/2010 |
| 7812579 | High-efficiency DC/DC voltage converter including capacitive switching pre-converter and up inductive switching post-regulator A DC/DC converter includes a pre-converter stage, which may include a charge pump, and a post-regulator stage, which may include a boost converter. The duty factor of the post-regulator stage is controlled by a feedback path that extends from the output terminal of ... | 10/12/2010 |
| 7786712 | High-efficiency DC/DC voltage converter including up inductive switching pre-regulator and capacitive switching post-converter A DC/DC converter includes a pre-regulator stage, which may include a boost converter, and a post-converter stage, which may include a charge pump. The duty factor of the pre-regulator stage is controlled by a feedback path that extends from the output terminal of t... | 08/31/2010 |
| 7782027 | High-efficiency DC/DC voltage converter including down inductive switching pre-regulator and capacitive switching post-converter A DC/DC converter includes a pre-regulator stage, which may include a Buck converter, and a post-converter stage, which may include a charge pump. The duty factor of the pre-regulator stage is controlled by a feedback path that extends from the output terminal of th... | 08/24/2010 |
| 7777459 | High-efficiency DC/DC voltage converter including capacitive switching pre-converter and down inductive switching post-regulator A DC/DC converter includes a pre-converter stage, which may include a charge pump, and a post-regulator stage, which may include a Buck converter. The duty factor of the post-regulator stage is controlled by a feedback path that extends from the output terminal of t... | 08/17/2010 |
| 7746044 | Power supply system for motherboard A power supply system for a motherboard includes a voltage regulator circuit includes a system power source, and a voltage output terminal, a sampling circuit having an input, and an output receiving a high level sleep signal from a south bridge of the motherboard, ... | 06/29/2010 |
| 7723967 | Step-up converter having an improved dynamic response A step-up converter includes input and output terminals, step-up conversion circuitry, a first feedback path and a drive circuit. The input terminals are configured to receive an input DC voltage and the output terminals configured to provide an output DC voltage. T... | 05/25/2010 |
| RE41304 | Method and apparatus for power supply capable of effectively reducing a power consumption A power supply apparatus includes a DC-to-DC converter performing a voltage conversion converting a voltage of a source power supplied from a direct current power source to a first predetermined voltage lower than the voltage of the source power and a voltage regula... | 05/04/2010 |
| 7710086 | Modular high voltage power supply for chemical analysis A high voltage power supply for use in a system such as a microfluidics system, uses a DC-DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC-DC converter and voltage-controlled resistor so as to regul... | 05/04/2010 |
| 7688046 | Power converters having varied switching frequencies Systems and techniques for performing power conversion operations in a portable device are used to convert an input voltage to a voltage at an output. The conversion operations use a two-stage conversion to convert the input voltage to a first voltage and to convert... | 03/30/2010 |
| 7675272 | Output impedance compensation for linear voltage regulators In a method and system for regulating an output voltage, a linear voltage regulator (LVR) includes an adjustable shunt regulator (ASR) having a limited gain, a feedback circuit (FC), and a compensation resistor (CR). The limited gain causes the output voltage of the... | 03/09/2010 |
| 7659701 | Limiting peak input power In an example embodiment, a primary power supply having an input, an output and a mode selection input. The mode selection input is operative to switch the power supply between a first mode of operation and a second mode of operation. While in the first mode of oper... | 02/09/2010 |
| RE41061 | High efficiency linear regulator A single chip hybrid regulator is disclosed having a first stage being a switching regulator and a second stage being a linear regulator. The switching regulator uses a filter circuit including an inductor and a capacitor. To make the hybrid regulator very small, th... | 12/29/2009 |
| 7622900 | Semiconductor integrated circuit supplying voltage to a load using a charge pump and electronic device including the same A semiconductor integrated circuit includes a charge pump boosting an input voltage and outputting the boosted voltage to a load, and a charge pump control circuit outputting a voltage to the charge pump based on the output voltage of the charge pump and determining... | 11/24/2009 |
| 7609037 | “Natural modulation” for maximizing efficiency in power converters Many power converters operate with an input voltage that has a normal range of voltage that is quite narrow, for example, commercial ac voltage or from a regulated upstream power converter. To accommodate transient and abnormal conditions, power converters are often... | 10/27/2009 |
| 7609038 | Switching power supply with protection function A switching power supply with protection function includes a transistor controlled to be on or off by a PWM signal from a PWM controller to convert a DC voltage into a square wave signal, a filter filtering the square wave signal into an output voltage signal, the o... | 10/27/2009 |
| 7586295 | Voltage up-conversion circuit According to one exemplary embodiment, a voltage up-conversion circuit includes a modulated voltage generator circuit, where the modulated voltage generator circuit is configured to receive an input voltage and generate a modulated voltage, and where the modulated v... | 09/08/2009 |
| 7583065 | Hybrid filter for high slew rate output current application An active linear regulator circuit in parallel with a filter capacitor of a switching voltage regulator injects current to a load only when the switching regulator and capacitor cannot supply adequate current to follow high frequency load transients in a manner whic... | 09/01/2009 |
