http://www.freshpatents.com/Electricity--power-supply-or-regulation-systems-dtnewntc323.php USPTO Class 323 - Electricity: power supply or regulation systems en-us Mon, 6 Feb 2012 13:31:19 -0800 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/-dt20120202ptan20120025789.php Mon, 6 Feb 2012 13:31:19 -0800 The invention relates to an on-load tap changer comprising semiconductor switching elements for uninterrupted switching between winding taps of a tapped transformer. According to the invention, contact bars are provided which extend in the direction of the path of the fixed tap contacts and can be contacted using contact bridges... http://www.freshpatents.com/-dt20120202ptan20120025790.php Mon, 6 Feb 2012 13:31:19 -0800 An electronic circuit includes: a first power line capable of supplying power; a second power line capable of supplying power independently from the first power line; a main circuit connected to the second power line; a detector that detects the supply of power from the first power line or the... http://www.freshpatents.com/-dt20120202ptan20120025795.php Mon, 6 Feb 2012 13:31:19 -0800 There is provided a PWM comparator which needs no current detecting differential amplifier in a control circuit constituting a current mode control DC/DC converter. The comparator includes a differential input stage including two pairs of input differential transistors whose sources are commonly connected for each pair; two constant-current sources connected... http://www.freshpatents.com/-dt20120202ptan20120025792.php Mon, 6 Feb 2012 13:31:19 -0800 A controller for a power converter includes a first amplification stage and a second amplification stage coupled to the first amplification stage. The first amplification stage generates a first amplified signal at a first terminal of an energy storage element according to an output signal the power converter. The second... http://www.freshpatents.com/-dt20120202ptan20120025791.php Mon, 6 Feb 2012 13:31:19 -0800 The disclosure relates to inductors fabricated on a substrate. A first inductor is formed by depositing conducting material on a first side of the substrate and a second inductor is formed by depositing material on a second side of the substrate. The inductors have the same cross section and the... http://www.freshpatents.com/-dt20120202ptan20120025794.php Mon, 6 Feb 2012 13:31:19 -0800 A drive controller for driving an inductive load connected to a node between first and second switches connected in series with a direct current voltage source includes a first diode, a series circuit of a second diode and an inductor, and a control circuit. The first diode is a parasitic... http://www.freshpatents.com/-dt20120202ptan20120025793.php Mon, 6 Feb 2012 13:31:19 -0800 A control circuit and method of a switching DC-DC power supply detects the error between the output voltage of the power supply and a design value of the output voltage and according to the error, determines an offset adjust signal to adjust the offset of an error comparator of the... http://www.freshpatents.com/-dt20120202ptan20120025796.php Mon, 6 Feb 2012 13:31:19 -0800 The disclosed embodiments of voltage regulators incorporate a current mode control architecture. In one embodiment, a voltage regulator includes a power switch having an input and an output. The power switch is configured to provide a first voltage during a first conduction period and a second voltage during a second... http://www.freshpatents.com/-dt20120202ptan20120025797.php Mon, 6 Feb 2012 13:31:19 -0800 A control circuit for controlling a power supply including a first switch and a second switch coupled in series between a first potential and a second potential. The control circuit includes a detection circuit that detects a magnitude relation of a voltage value at a node between the first and... http://www.freshpatents.com/-dt20120202ptan20120025798.php Mon, 6 Feb 2012 13:31:19 -0800 A voltage-modulated circuit device uses a power source of a modulation circuit to acquire a predetermined trigger voltage through a voltage acquisition circuit and a step-down circuit to step down a voltage, and then a voltage amplification circuit amplifies the voltage by several times, such that the trigger voltage amplified... http://www.freshpatents.com/-dt20120202ptan20120025799.php Mon, 6 Feb 2012 13:31:19 -0800 The disclosed embodiments of voltage regulators incorporate a current mode control architecture. In one embodiment, a comparator mechanism triggers a transition in a power switch when the error in the regulated output voltage is equal to a proportionally scaled value of current provided at an output filter. The voltage regulator... http://www.freshpatents.com/-dt20120202ptan20120025800.php Mon, 6 Feb 2012 13:31:19 -0800 A voltage mode transmitter equalizer has high efficiencies, yet consumes substantially constant supply current from the power supply and provides constant back-match impedance. The voltage mode transmitter equalizer is configured such that the output voltage of the signal to be output on a pair of transmission lines can be controlled... http://www.freshpatents.com/-dt20120202ptan20120025801.php Mon, 6 Feb 2012 13:31:19 -0800 A MOS resistor generates an output current based on a voltage induced across a drain and a source thereof. A gate bias voltage generator circuit generates a gate bias voltage so as to operate the MOS resistor in a strong-inversion linear region, and applies the gate bias voltage to a... http://www.freshpatents.com/-dt20120202ptan20120025802.php Mon, 6 Feb 2012 13:31:19 -0800 A load control device adapted to be coupled between an AC power source and an electrical load for controlling the power delivered to the load includes a power supply having an energy storage capacitor and a charge pump circuit adapted to conduct an input charging current through the load and...