Class 323/262 - Plural windngs in series

Subclass of Class 323 - Electricity: power supply or regulation systems
Definition: Subject matter wherein the final control device includes
No. of patents: 23
Last issue date: 10/11/2011

Number	Title	Issue Date
8035358	Binary voltage regulator A voltage regulator is provided that includes a plurality of buck-boost transformers each having primary and secondary windings. The secondary windings of the transformers are electrically disposed in series between a source and a load. Each transformer is controlle...	10/11/2011
7667440	Power-supply control An embodiment of a power-supply controller is operable to couple a first node of a first inductor to first and second reference nodes, the first inductor composing a first phase of a power supply and having a second node coupled to an output node of the power supply...	02/23/2010
7602159	Common mode noise reduction using parasitic capacitance cancellation A negative capacitance is developed by configuring an inductor as two inversely or opposingly coupled windings having different numbers of turns and connecting a capacitance to a center tap between the two windings. The negative capacitance is developed on the side ...	10/13/2009
7583064	Booster circuit A booster circuit according to an embodiment of the present invention comprises: an input terminal; an output terminal; a common terminal; a transformation unit including first, the second, and the third windings, the windings wound in the same direction and connect...	09/01/2009
7321224	DC-DC converter with clamping capacitor and output winding for reduced output voltage ripple A DC-DC converter is structured such that a main switching element has one terminal connected to one terminal of a DC power supply and has the other terminal connected to one terminal of a first winding of a resonance coil, a choke coil has one terminal connected to...	01/22/2008
7276884	DC/DC converter A DC/DC converter includes a first transformer and a second transformer each having primary windings and secondary windings respectively having first windings and second windings, a second switch connected to both ends of a first series circuit, a fourth switch conn...	10/02/2007
6987379	Auxiliary switching circuit for a chopping converter The invention relates to an auxiliary switching circuit (10) for a chopping converter comprising a first inductive element (L0) for serial energy storage with a free-wheel diode (DL) and a switch (K), in addition to a second inductive element (L) for d...	01/17/2006
6300878	Constant current regulator using IGBT control A constant current regulator that receives an AC input current from a source provides a constant AC current to a load. The regulator includes first, second, third, and fourth electronically controllable switches, a transformer coupled to the switches, and...	10/09/2001
5844402	In-line buck/boost voltage-regulation systems and apparatus An in-line buck/boost voltage/regulating apparatus and system for delivering AC electrical power of regulated voltage from an output terminal of a main winding to an electrical load. The apparatus has an input terminal for connection to an AC power supply...	12/01/1998
5694302	Passive clamp and ripple control for buck boost converter A power conversion circuit, in which a flyback converter is modified with additional elements to provide both dissipationless snubbing and also input ripple cancellation. This is achieved by appropriate connection of an additional winding to the isolating...	12/02/1997
5633579	Boost converter using an energy reproducing snubber circuit Disclosed is a boost converter using a stress energy reproducing snubber circuit, the converter comprising a first inductor connected between one terminal of an input portion and a first connection point; a first diode connected between said first connect...	05/27/1997
5331127	Dual push-pull induction heating drive circuit A dual push-pull induction heating drive circuit comprises an oscillation triggering control circuit regulating the ON-OFF switch of the circuit activation, a switching logic circuit bringing about two exclusive pulse signals serving to drive via an ampli...	07/19/1994
4930063	Variable resonance regulator for power supply A voltage regulator particularly adapted to A.C. distributed power systems requiring independent voltage regulation at a plurality of frequency responsive power supply modules energized by a power source at a common alternating frequency is provided by re...	05/29/1990
4695917	Inductive power controller Power to a load is controlled by actuation of an inductive circuit from a first condition of low inductance to a second condition of higher inductance in response to a preselected overcurrent condition. In a first preferred embodiment, the inductive circu...	09/22/1987
4571487	Methods and apparatus for supplying electrical power for proximity effect heat-tracing A proximity effect heat-tracing system in which proximity effect heat-tracing circuits are fed in either direction from a plurality of feed points connected to a single main transformer to increase the length of pipeline supplied by a single main transfor...	02/18/1986
4517439	AC-DC welding power supply An AC-DC welding power supply includes a main transformer in which the primary windings are partially decoupled from the secondary windings to provide a small amount of reactance on the output side of the power supply. A current regulating circuit and a c...	05/14/1985
4426564	Parallel resonant induction cooking surface unit A parallel resonant induction cooking surface unit comprises a voltage fed inverter which drives a load circuit, comprised of a main induction drive coil, a tuning capacitor coupled in parallel with the main induction drive coil, and an inductor coupled i...	01/17/1984
4363060	Arcless tap changer for voltage regulator A tap changer voltage regulator permits a tap changer selector contact to engage an open circuited new tap without arcing and has a half-tap voltage auxiliary winding which permits halving the inter-tap voltage to thus double the number of steps, and an a...	12/07/1982
4178539	Stepping AC line voltage regulator A regulator for providing two different steps of bucking and two different steps of boosting correcting voltages to maintain the value of its output voltage within a selectable range with the regulator effecting each step correction for the next half-cycl...	12/11/1979
4131938	Digital chopper regulator A voltage regulator for providing a predetermined output voltage from an unregulated voltage input is described where the output voltage is compared with a reference voltage to generate one or more control signals which in turn activate boost regulators w...	12/26/1978
4122382	Load-responsive treater controller Improved circuitry for regulating the average power supplied by an AC source to a load includes switching circuitry that the power applies to the load for integral numbers of full cycles of the AC source. Control of the circuit for switching the power on ...	10/24/1978
3995137	Alternating current arc welder An AC arc welder which comprises means for detecting the welding current, a comparison circuit for generating logical output signals by comparing the output voltage or output current of the welding current detecting means with the reference voltage or ref...	11/30/1976
3970918	High speed, step-switching AC line voltage regulator with half-cycle step response An AC line voltage regulator having a cross-coupled memory circuit that interlocks up and down counter logic channels in a manner that successive stepping in the same direction is accomplished in half-cycle steps, while oscillatory stepping between two ad...	07/20/1976

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Class 323/262 - Plural windngs in series