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| Number | Title | Issue Date |
| 8125209 | Reference voltage circuit The present invention provides a reference voltage circuit making use of a non-volatile and non-modifiable storage of an electric charge. A tunable transformation module is adapted to transform a constant voltage corresponding to the constant stored charge into an o... | 02/28/2012 |
| 7379312 | High-voltage device having a measuring resistor A high-voltage device having a measuring resistor, also called a bleeder, is plunged into an electrical field whose voltage varies in the same way as the voltage along the bleeder. To achieve this, the capacitive elements are distributed in two rows, each row defini... | 05/27/2008 |
| 7288718 | Separable electrical connector component for sending and receiving communication signals through underground power distribution lines An electrical connector component for sending and receiving communication signals through a power distribution line generally includes an internal conductor, an insulative housing surrounding the conductor and a signal filtering device having a medium-voltage end in... | 10/30/2007 |
| 7258483 | Device for measuring the level and/or the temperature in a container A device for measuring at least one of a level and a temperature of a liquid in a container includes a resistor arrangement adapted to be immersed in the liquid. An immersed length of the resistor arrangement in the liquid corresponds to the level of the liquid in t... | 08/21/2007 |
| 7224273 | Device and method for identifying a container The present invention relates to an wireless communication device and method for identifying a container. The device includes a wireless communication device for transmitting information regarding the container. The container includes an outer wall forming an enclos... | 05/29/2007 |
| 7208919 | Method and apparatus for digitally regulating an output voltage using noise-shaped component selection Provided is a digitally-controlled linear regulator having noise-shaped component selection. The digitally-controlled linear regulator has a regulated-voltage sensor, a comparator module, a quantization module, and an impedance switching network. The regulated-volta... | 04/24/2007 |
| 7142441 | Method for using a programmable operating frequency for a DC-to-DC converter for use with embedded wireless products A method for determining the switching frequency of a DC-to-DC power supply for a portable radio transceiver (300) includes determining a first group of switching frequencies (301) and then determining the switching harmonics based on that group of swi... | 11/28/2006 |
| 7141896 | Pulse width modulation signal generator A signal generator has matched reference (4) and modulation (6) ramp circuits, each including current source (8, 32), capacitance (10) charged by the current source, voltage detector (18) and switch (24). The output of one o... | 11/28/2006 |
| 7116088 | High voltage shunt regulator for flash memory A high shunt regulator provides precise voltage over process, temperature, power supply, and foundries. The HV level is settable by a digital control bits such as fuse bits. A filter network filters out the ripple noise and charge transient. A tracking capacitor div... | 10/03/2006 |
| 6909272 | System and method for voltage divider having a guard structure A voltage divider (102) for high voltage and other applications uses a high voltage impedance element (104) and a low voltage impedance element (106) to isolate a sample node (110) from which to measure current, voltage, frequency respons... | 06/21/2005 |
| 6731258 | Fast-working LCD residual display suppression circuit and a method thereto The invention relates to a fast-working residual display suppression circuit for LCD and a method thereto. The method includes the following steps: receiving a control signal; if the control signal is an automatic control signal, comparing a first reference voltage ... | 05/04/2004 |
| 6693394 | Brightness compensation for LED lighting based on ambient temperature A circuit regulates the flow of current to a bank of light emitting diodes (LEDs). The circuit is sensitive to ambient temperature and increases the voltage at the LEDs in the circuit. Consequently, the current flow to the LEDs will increase when the ambi... | 02/17/2004 |
| 6572287 | Assembly of an impedance transformer and a balun transformer The invention relates to an arrangement of two cascaded transformers, i.e. an impedance transformer (24) and a balance-unbalance transformer, also referred to as balun transformer (26). A relatively simple, inexpensive, small and efficient construction of... | 06/03/2003 |
| 6388543 | System for eight-phase 45° polyphase filter with amplitude matching A system for an eight-phase 45° polyphase filter with amplitude matching, where a full eight-phase 45° split may be achieved by tying together the inputs of two offset four-phase 90° phase splitters. Amplitude matching may be achieved by obtaining thos... | 05/14/2002 |
| 6087823 | Electronic inductance circuit There is provided an electronic inductance circuit having a transistor, a first resistor, a second resistor, a capacitor and a first current source. The main current path of the transistor and the first resistor are connected in series to form a first ser... | 07/11/2000 |
| 5994889 | Circuit arrangement for limiting the current at make of a capacitative load A circuit arrangement for limiting the current at make which includes hot-carrier thermistors that see to a reduction of the current flow at make. Only when a further hot-carrier thermistor has been adequately heated by the flow of current are the hot-car... | 11/30/1999 |
| 5926013 | Circuit and method for generating a voltage for use during active time periods but not inactive time periods A circuit for generating an output voltage which is used during active time periods and not during inactive time periods. A DC/DC converter converts an input voltage to the output voltage. During the inactive time periods, a capacitor is charged with a qu... | 07/20/1999 |
| 5532580 | Circuit for weighted addition A circuit for weighted addition which includes a transistor having a gate and a plurality of resistance elements. Each resistance element has a first and second end. The first end of each resistance element is impressed with a voltage, and the second end ... | 07/02/1996 |
| 5191303 | High speed probe attenuator A high speed probe attenuator has an attenuator with a plurality of resistors connected in series between a probe input and an instrument output. A plurality of capacitors are coupled in parallel with pairs of the resistors in an interleaved fashion to sp... | 03/02/1993 |
| 5122730 | Voltage divider for a wide band domino effect high voltage regulator The high voltage regulator employs a field effect transistor (FET) amplifier and a shielded wide band frequency compensated RC voltage divider. The device comprises a FET amplifier used as a current source in a 20 KV power supply. The negative output of t... | 06/16/1992 |
| 5023769 | X-ray tube high-voltage power supply with control loop and shielded voltage divider A power supply for an X-ray tube having a feedback loop for regulating the high-voltage output signal of the power supply and allowing operation from AC lines of different voltage characteristics. The single-phase components of the input AC line voltage p... | 06/11/1991 |
| 4710698 | Phase-controlled automatic switching circuit There is disclosed a phase-controlled switching circuit, comprising a controlled rectifier (e.g. bidirectional triode thyristor); an amplifier connected at its output terminal to the gate of the controlled rectifier; an ac Wheatstone bridge having at one ... | 12/01/1987 |
| 4689550 | Method for adjusting an electronic circuit This invention relates to a method for adjusting an electronic circuit used for a television receiver and the like when it is adjusted upon being manufactured, in which connection wires (17) and (18), which can be melt-cut by flowing a current thereto fro... | 08/25/1987 |
| 4668906 | Switched resistor regulator A switched resistor regulator controls current flow through a resistor electrically connected to a load by varying the duty cycle of switching the resistor into electrical connection between of a power source and the load to regulate the power to the load... | 05/26/1987 |
| 4647843 | Trimming resistances in symmetrical polyphase networks A symmertical polyphase network consists of a ring of series-connected alternate resistors and capacitors, with junction points therebetween alternately forming inputs and outputs of the network. For example there are four resistors and four capacitors. T... | 03/03/1987 |
| 4574230 | Phase-regulated switching circuit The present invention relates to a phase-regulated zero-crossover ac switching circuit. The present switching circuit comprises the components of (a) regulator having a time constant; (b) ac Wheatstone bridge connected with the regulator and amplifier, wh... | 03/04/1986 |
| 4546305 | Mains-voltage discrimination device A supply-voltage discrimination device for adapting a load (8) to a lower or higher alternating-voltage range includes a voltage-dependent resistor (1) thermally coupled to a PTC-resistor (2) and electrically connected in series with said voltage-dependen... | 10/08/1985 |
| 4451743 | DC-to-DC Voltage converter A DC-to-DC voltage converter is disclosed for converting the voltage from a battery to provide a power supply voltage whose value can be equal to the battery voltage multiplied by or divided by a non-integral factor, e.g. 2/3. The converter operates on th... | 05/29/1984 |
| 4398143 | Remote supply circuit for analog two-wire connection This circuit comprises at least one power supply inserted between the earth and each of the two wires of the connection, two RC series dipoles in each case inserted between the earth and the two wires and a circuit able to fix to the earth the average pot... | 08/09/1983 |
| 4313084 | Laminated structure of double-layer capacitor A laminated structure comprises a plurality of double-layer capacitor unit cells, each having a high withstand voltage. A complete capacitor is made by laminating a plurality of unit cells of the double-layer capacitors type and by connecting a plurality ... | 01/26/1982 |
| 4274003 | X-ray diagnostic generator comprising means for obtaining a signal corresponding to the x-ray tube voltage In the exemplary embodiment, in order to obtain a signal corresponding to the x-ray tube voltage, a voltage divider is connected in parallel with the x-ray tube whose resistances are bridged over by capacitances. The resistances of the voltage divider are... | 06/16/1981 |
| 4034283 | Compensated voltage divider A voltage divider comprising a coaxial array of spaced parallel, capacitive plates connected to one another by respective resistive elements disposed between the plates.... | 07/05/1977 |
