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| Number | Title | Issue Date |
| 7692469 | Voltage sense circuit and method therefor In one embodiment, a voltage sense circuit receives an ac input signal and forms a rectified output voltage that is representative of the ac input signal. ... | 04/06/2010 |
| 7417485 | Differential energy difference integrator Embodiments of the invention are generally directed to a high-speed differential energy difference integrator (EDI) for adaptive equalizers. In an embodiment, the EDI includes two differential full-wave rectifiers providing differential outputs that are cross-couple... | 08/26/2008 |
| 7408395 | Circuits and methods for fast-settling signal alignment and DC offset removal Fast settling circuits and methods designed to align input signal amplitude level and to remove DC offset voltages with minimal loss of low frequency signal in receiving analog circuits are disclosed. With the key innovative circuits and methods for signal peak alig... | 08/05/2008 |
| 7365302 | Output impedance varying circuit A photo detector IC (PDIC) is connected with a flexible printed circuit board (FPC). A signal converted into a voltage through light-to-voltage conversion in the PDIC is connected with the drain of a field effect transistor (FET), while the source of the FET is conn... | 04/29/2008 |
| 7355864 | Switching regulator and its control method A switching regulator has an input voltage detection circuit which inputs a voltage applied to a rectifier diode 7 connected in series with the secondary side of a transformer and generates a voltage signal Vvp corresponding to the voltage, and a calculation ... | 04/08/2008 |
| 7282980 | Precision rectifier circuit for high-density, low-power implantable medical device A precision voltage rectifier comprises a source voltage input and a voltage reference. The rectifier comprises switching elements that, according to the sign of the source signal, change the connections to the inputs of a differential difference amplifier that is c... | 10/16/2007 |
| 7245895 | Attenuator with switch function and mobile telephone terminal device using the same A high frequency part, which amplifies a high frequency signal outputted from an intermediate frequency part and supplies to an antenna, is equipped with a gain controller with switch function. The gain controller with switch function comprises an attenuator with sw... | 07/17/2007 |
| 7215162 | Start signal outputting circuit A start signal outputting circuit according to the invention has a differential RF/DC convertor part 100 for converting a high frequency power (RF) into a d.c. potential (DC). The RF/DC convertor part 100 is formed by two transistors QRD, Q | 05/08/2007 |
| 7199637 | Rectifier circuit without alternating-current feedback A rectifier circuit is provided, which does not need a feedback function and prevents deterioration of a frequency characteristic, even if the rectifier circuit is configured with thin film transistors (TFTs). For example, the rectifier circuit is configured with an... | 04/03/2007 |
| 7199621 | Low AC impedance input stage for fast startup applications The low AC impedance input stage circuit for fast startup applications includes: a first transistor coupled between a first input node and a first output node; a second transistor coupled between a second input node and a second output node, and having a control nod... | 04/03/2007 |
| 7119999 | Pre-regulator with reverse current blocking An apparatus includes a blocking N-channel MOS (LDMOS) transistor that prevents current flow when the supply connection is reversed. When connected properly, the body diode conducts to provide a start-up function. A bias generator is employed to enable the low drop-... | 10/10/2006 |
| 7112899 | Device for controlling an electric load, and a control device A device for controlling at least one electrical load and a control device therefor. The electrical load includes a first load connection and a second load connection. The first load connection is able to be connected to an operating-voltage potential via a first co... | 09/26/2006 |
| 7110232 | Semiconductor circuit with protective circuit A semiconductor circuit in a semiconductor substrate includes a first input for feeding a first supply potential, a second input for feeding a second supply potential higher than the first supply potential, a device, an output and a parasitic pn-junction between the... | 09/19/2006 |
| 7109845 | Circuit arrangement for signal detection having current mirror with cascode coupled transistors A circuit arrangement for detecting a received signal includes a rectifier with an input connected to a receiving antenna for rectifying an encoded received signal, a signal capacitor connected to an output of the rectifier, a discharge current sink connected to the... | 09/19/2006 |
| 7061316 | High frequency power detector with dBm-linear characteristic and method of regulating the power of an electrical HF-oscillation A high frequency power detector includes an input coupling arrangement that couples an electrical HF-oscillation into a basic circuit portion including at least a first diode and a circuit node. The power detector further includes a series circuit of a resistor and ... | 06/13/2006 |
| 7017404 | Wireless system for measuring pressure and flow in tubes A remote sensor (100) is remotely placed within a vessel containing a fluid in order to sense a pressure generated by the fluid. The sensor includes an antenna (10) for capturing an externally-generated interrogation signal and for transmitting a respo... | 03/28/2006 |
| 6954104 | Method and system for monitoring a deliverable radio frequency power of an amplifier operable on a monolithic microwave integrated circuit A method and system are described for monitoring a deliverable radio frequency (RF) power of an amplifier operable on a monolithic microwave integrated circuit (MMIC). According to an exemplary embodiment, circuitry is configured to capture, on the MMIC, a first por... | 10/11/2005 |
| 6924688 | Rectifying charge storage device with antenna A composite rectifying charge storage device, consisting of a rectifier and capacitor which share common elements, is combined in a circuit with an antenna for remote energization in response to an external electromagnetic or electrostatic AC field. The energized co... | 08/02/2005 |
| 6856185 | Simple RMS to DC converter A full-wave rectifier, two resistors forming a voltage divider across the rectifier outputs and a capacitor in parallel with one of the resistors, provide an output across the capacitor that approximates the RMS equivalent of an input signal to the rectifier. The ca... | 02/15/2005 |
| 6781432 | Control circuit of MOSFET for synchronous rectification A control circuit for a MOSFET used in a synchronous rectification circuit applies a gate voltage to the MOSFET during most of a period in which a current flows in a MOSFET. As a result, conduction loss is decreased, making it possible to increase device efficiency ... | 08/24/2004 |
| 6765425 | Mosgate device driver for synchronous rectification of a 3 phase sinusoidal source A rectifying circuit and method to produce a DC output by rectifying a sinusoidal source having a plurality of output phase voltages and a plurality of phase-to-phase voltages, the rectifying circuit including a bridge circuit coupled to the output phase voltages, t... | 07/20/2004 |
| 6703886 | Circuit arrangement for rectifying a signal In a circuit arrangement for rectifying a signal, in which two transconductors are controllable with opposite phase by means of the signal to be rectified, the outputs of the transconductors are connected to a first circuit point via a first diode and to ... | 03/09/2004 |
| 6605980 | Synchronous rectifier circuit The present invention relates to a synchronous rectifier circuit having a transformer (U) in single-phase center-tap connection. MOSFETs containing a body diode are used as switches. The MOSFETs are connected up in such a way that a current flows only fro... | 08/12/2003 |
| 6597228 | Diode-rectifier with non-linear load resistance In a half-wave or multi-path RF diode-rectifier circuit having at least one rectifier diode and at least one output-side charging capacitor, the output is loaded with a non-linear load resistance having approximately the same relative temperature coeffici... | 07/22/2003 |
| 6501320 | Self-powered, maximum-conductive, low turn-on voltage CMOS rectifier A rectifier circuit with a transistor having first and second electrodes coupled between an input and output of the rectifier circuit. A latch has an output connected to a control node of the transistor, and has first and second inputs connected to the in... | 12/31/2002 |
| 6448856 | Electronic volume circuit An electronic volume circuit is provided, which can be driven by a single power source and can therefore be formed by an LSI that can be fabricated in a simple manner using an oxide film and a junction process for a single power source. A first amplifying... | 09/10/2002 |
| 6400205 | Diode detection circuit A diode detection circuit is capable of obtaining an ideal rectification voltage even the case of a minute input high-frequency voltage. The circuit includes a first diode that accepts an AC signal; a first parallel circuit consisting of a resistor and a ... | 06/04/2002 |
| 6369641 | Biasing circuits In one aspect, a bias circuit includes a rectifier, a negative bias level setter, and a negative bias extractor. The rectifier has a rectifier input and a rectifier output. The rectifier is configured to produce at the rectifier output a negative rectifie... | 04/09/2002 |
| 6369635 | Temperature-compensated diode rectifier circuit for an HF level controller A temperature-compensated diode rectifier circuit is coupled to the outside of an HF amplifier (PA) to derive a rectified voltage (UD) from an HF output signal (RFOUT) with a rectifier input (IR) via a directional coupler ... | 04/09/2002 |
| 6252439 | Current level detector device for protecting a circuit against alternating current overcurrents A current level detector device for protecting a circuit against alternating current overcurrents includes resistor arrangements that are inserted into the circuit to be protected and two detector cells, one for each half-wave of the current. The detector... | 06/26/2001 |
| 6229371 | Clamp circuit The present invention makes it possible to prevent feedback loops from causing oscillations in clamp circuits. When a video signal is input through a capacitor into a first inverting input terminal of an operational amplifier, the output terminal tends to... | 05/08/2001 |
| 6084458 | Bi-directional transistor structure A bi-directional transistor structure is provided, which can help solve the problem of degraded performance due to hot carrier injection (HCI) effect that is otherwise prominent in conventional bi-directional transistors. This bi-directional transistor st... | 07/04/2000 |
| 6064249 | Lateral DMOS design for ESD protection A LDMOS having improved ESD reliability and a method for designing such a LDMOS. A higher gate clamp voltage and/or minimized drain clamp voltage is used to maximize the ESD performance of the LDMOS. Given a set of design parameters, one or more of the ga... | 05/16/2000 |
| 6008684 | CMOS output buffer with CMOS-controlled lateral SCR devices An MOS-controlled, lateral SCR device including a semiconductor substrate of a first doping type; a first well region formed in the substrate and being of a second doping type which is different from the first doping type; a second well region formed in t... | 12/28/1999 |
| 5721506 | Efficient Vccp supply with regulation for voltage control A highly efficient compact multiple output voltage generation circuit is designed for use in integrated circuit devices such as DRAMs which require multiple internal voltage supplies for optimum performance. An oscillator is connected to a primary coil of... | 02/24/1998 |
| 5648739 | Switching device having a polarity reversal protection system A switching device has at least a first connection and a second connection, as well as a control connection. The switching device includes at least a first transistor and a second transistor. A load is connected to the second connection of the switching d... | 07/15/1997 |
| 5493247 | Gate circuit for hard driven GTO In a circuit for hard driving a GTO, the conductor inductance (L1) and the internal inductance of the GTO (L2) form, together with a first capacitor (C1) situated in parallel via a switch (S), a series resonance circuit inside the gate circuit. In this co... | 02/20/1996 |
| 5241282 | Wide dynamic range, low power, analog-to-digital receiver A low power, wide-dynamic-range, signal compressor is suitable for operat from batteries. The compressor input is compatable with most sensors, resistive, capacitive or inductive and it is capable of compressing 150 db of input dynamic range into a 6 bit... | 08/31/1993 |
| 5210503 | Amplitude limiting amplifier circuit A MOSFET whose back gate area is independent of a substrate is employed as a level-slicing transistor which is simultaneously used for alternately turning ON and turning OFF four analog switches in accordance with the relation between the voltages of the ... | 05/11/1993 |
| 5192917 | Circuit and method for detecting an amplitude and offset deviation of two sinusoidal signals To detect amplitude deviations and/or offset deviations in two sinusoidal signals (S1, S2), electrically staggered from each other by 90°, both signals (S1, S2) are evaluated by way of threshold stages (K11, K12, K21, K22). The zero passages of the one s... | 03/09/1993 |
