| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 323233000 | Using impedance | 17 |
| 20080197820 | Device for Supplying an Integrated Circuit with Power - The device ( | 08-21-2008 |
| 20080203980 | PROGRAMMABLE VOLTAGE DIVIDER - A test circuit and programmable voltage divider that may be used in the test circuit. The programmable voltage divider develops a voltage difference signal that may be digitally selected. The test circuit may be used to test and characterize sense amplifiers. The programmable voltage divider develops a signal with a selected polarity and magnitude that is provided to a sense amplifier being tested. The sense amplifier is set and its output latched. The latch contents are checked against an expected value. The difference voltage may be changed and the path retested to find passing and failing points. | 08-28-2008 |
| 20080272749 | High Frequency Device, Power Supply Device and Communication Apparatus - The present invention provides a high frequency device in which stabilization of a DC bias voltage applied to an electrostatic drive type vibrator is attempted and a power supply device which can supply a stable DC bias voltage. | 11-06-2008 |
| 20090027015 | DC/DC CONVERTER WITH IMPROVED STABILITY - The DC/DC converter according to one embodiment includes a switch, an inductor, a capacitor, a resistor, and a voltage divider. The switch is coupled to the input voltage. The inductor is used for coupling the first switch to an output node of the DC/DC converter so as to generate the output voltage at the output node. The capacitor is coupled to the output voltage. The resistor is coupled to the capacitor in series, and is coupled to ground. The voltage divider is coupled across the capacitor so as to reduce the zero frequency of the DC/DC converter. | 01-29-2009 |
| 20090128102 | BALANCING DEVICE - A compensator for balancing an ac voltage network with a load connected between two phases. The compensator includes a voltage-source converter and a balancing device. The balancing device includes an inductance connected between phases before the load. | 05-21-2009 |
| 20090167260 | Electrical Power Supply Arrangement and Use Thereof - A power supply arrangement is specified in which a capacitor with a low internal resistance, in particular a supercap ( | 07-02-2009 |
| 20090212749 | SEMICONDUCTOR DEVICE AND VOLTAGE DIVIDER CIRCUIT - A semiconductor device includes a resistance layout area that disposes multiple unit resistors, and a voltage divider circuit that divides a voltage applied to a series circuit and has the series circuit including a first resistance element, a second resistance element, some trimming resistance element connected in series, and some trimming fuse respectively connected in parallel with the trimming resistance element, in the circuit, the unit resistors belonging to each of three main resistance elements formed by the first resistance element, the second resistance element, and a highest trimming resistance element whose resistance value is highest among the trimming resistance elements are divided into multiple blocks each including a predetermined number of the unit resistors, and the multiple groups each including one block of each of the three main resistance elements adjacently arranged are formed, and the groups arranged close to a center portion of the resistance layout area. | 08-27-2009 |
| 20100007315 | HIGH-EFFICIENCY POWER SUPPLY DEVICE AND CONTROL METHOD THEREOF - The present invention discloses a high-efficiency power supply device and its control method. The power supply device includes a power conversion circuit and a load balance detection circuit. The power conversion circuit is connected to at least one set of switch module through an electric circuit, a resistor connected in parallel with the switch module, and a power output load terminal for driving a load. The load balance detection circuit is connected to the power conversion circuit and the switch module, such that the load balance detection circuit can detect whether or not a load driven by one or more sets of power output load terminals is balanced. If the driven load is not balanced, then the one or more sets of resistor will be in a closed circuit status to achieve a load balance. | 01-14-2010 |
| 20100188058 | Reference Voltage Generation for Single-Ended Communication Channels - An improved reference voltage (Vref) generator useable, for example, in sensing data on single-ended channels is disclosed. The Vref generator can be placed on the integrated circuit containing the receivers, or may be placed off chip. In one embodiment, the Vref generator comprises an adjustable-resistance voltage divider in combination with a current source. The voltage divider is referenced to I/O power supplies Vddq and Vssq, with Vref being generated at a node intervening between the adjustable resistances of the voltage divider. The current source injects a current into the Vref node and into a non-varying Thevenin equivalent resistance formed of the same resistors used in the voltage divider. So constructed, the voltage generated equals the sum of two terms: a first term comprising the slope between Vref and Vddq, and a second term comprising a Vref offset. Each of these terms can be independently adjusted in first and second modes: the slope term via the voltage divider, and the offset term by the magnitude of the injected current. Use of the disclosed Vref generator in one useful implementation allows Vref to be optimized at two different values for Vddq. | 07-29-2010 |
| 20120161726 | SAFE AREA VOLTAGE REGULATOR - A safe area voltage regulator is provided that includes a loss element, a distributed shunt regulator and an output terminal. The loss element component is directly connected to the distributed shunt regulator and includes a plurality of loss elements connected in series. The distributed shunt regulator is made up of a plurality of shunt regulators connected in parallel and is configured to regulate a peak voltage of a voltage signal to below a maximum voltage threshold. The output terminal is directly connected to the distributed shunt regulator and configured to output the voltage signal with the regulated peak voltage. The safe area voltage regulator is configured to ensure that the voltage signal with the regulated peak voltage does not exceed a maximum voltage threshold when a fault occurs to a signal power amplifier inputting the voltage signal to the safe area voltage regulator or when a fault occurs to one of the plurality of shunt regulators or when a fault occurs to one of the plurality of loss elements. | 06-28-2012 |
| 20130069605 | Power Transfer Devices, Methods, and Systems with Crowbar Switch Shunting Energy-Transfer Reactance - The present application discloses methods, circuits and systems for power conversion, using a universal multiport architecture. When a transient appears on the power input (which can be, for example, polyphase AC), the input and output switches are opened, and a crowbar switch shunts the inductance which is used for energy transfer. This prevents this inductance from creating an overvoltage when it is disconnected from outside lines. | 03-21-2013 |
| 20130214747 | VOLTAGE CONVERTING APPARATUS - A voltage converting apparatus is provided with: a reactor; a first switching element and a second switching element each of which is connected to the reactor in series; a first shunt resistor for detecting a first electric current flowing through the first switching element; a second shunt resistor for detecting a second electric current flowing through the second switching element; a current combining device for combining a detected value of the first electric current and a detected value of the second electric current to generate a combined current; and a detecting device for detecting a current value of the combined current in a plurality of different timings, thereby detecting a peak value and an average value of an electric current flowing through the reactor. | 08-22-2013 |
| 20130314058 | VOLTAGE CONVERSION CIRCUIT - A voltage conversion circuit includes a power source, at least one first capacitor, and a voltage convertor. The power source is for providing power for the voltage conversion circuit. The at least one first capacitors are electrically connected to the power source in parallel. The voltage convertor includes at least one group of first input pins, at least one group of second input pins, and at least one output pin that outputs converted voltage of the power to a load. The first and second group of input pins are respectively arranged on different edges of the voltage convertor, the power source and the at least one first capacitors are selectively electrically connected to one of the group of the first and second input pins and are arranged beside a corresponding edge of the voltage convertor. | 11-28-2013 |
| 20140055105 | VOLTAGE SCALING SYSTEM - A circuit for downscaling voltage comprising: a voltage regulator; a voltage reference register configured to provide a voltage reference value; a voltage comparator configured to output a logical one if a supply voltage of the voltage regulator is greater than the voltage reference value, wherein a first input of the voltage comparator is coupled to output of the voltage regulator and a second input of the voltage comparator is coupled to output of the voltage reference register; an AND gate, where a first input of the AND gate is coupled to output of the voltage comparator and a second input of the AND gate is coupled to a voltage reference ready signal; a switch configured to close based on output of logical one from the AND gate; and a pull-down resistor configured to couple to the output of the voltage regulator only if the switch is closed. | 02-27-2014 |
| 20140062427 | ULTRA LOW RIPPLE BOOST CONVERTER - This document discusses, among other things, systems and methods including a boost converter configured to receive an input voltage (e.g., a battery voltage) and to provide a boosted output voltage higher than the input voltage, and a shunt regulator coupled to the output of the boost converter through a resistive element and configured to regulate an output ripple of the boosted output voltage. In an example, using the systems and methods described herein, a battery voltage of less than 5 volts can be boosted and regulated to an output voltage between 16 and 20 volts with an output ripple of less than 500 microvolts. | 03-06-2014 |
| 20140210430 | Maintaining the Resistor Divider Ratio During Start-up - Circuits and methods to maintain a resistive voltage divider ratio during start-up of an electronic circuit comprising a feed-forward capacitor across a feedback resistor using a dynamic start-up circuit are disclosed as e.g. a LDO or an amplifier. In a preferred embodiment of the disclosure is applied to an LDO. Modification of the resistive voltage divider ratio caused by the feed-forward capacitor during start-up is prevented while the voltage level of a voltage access point of the voltage divider on the feed-forward capacitor is maintained. Embodiments of the disclosure presented comprise using a start-up buffer or a start-up capacitor during the start-up phase. | 07-31-2014 |
| 20160011614 | SENSING A SWITCHING-POWER-SUPPLY PHASE CURRENT | 01-14-2016 |
