For Rectifying Patents (Class 363/61)
  • Patent number: 4389703
    Abstract: Integrated voltage multiplier constructed by multilayer technology in the form of a homogeneous block constituted by a stack of thin ceramic dielectric sheets metallized in such a way that each sheet carries metallized zones constituting the foils of capacitors, certain of which are connected in series. Thus, the block has at least two groups of series-connected capacitors. A recess is provided in the block between the two groups for the diodes interconnecting the capacitors of the two groups.
    Type: Grant
    Filed: February 10, 1981
    Date of Patent: June 21, 1983
    Assignee: Thomson-CSF
    Inventors: Gilbert Morel, Pierre Frappart, Roland Saint Marcoux
  • Patent number: 4387333
    Abstract: Disclosed herein is a circuit for charging a battery having opposed terminals, which circuit includes a relatively rotatable magnet and charge coil for generating charging potentials of alternating first and second polarities, the charge coil having first and second terminals, a diode having an anode connected to the first terminal of the charge coil and a cathode adapted for connection to one of the battery terminals, whereby to afford application to the battery for charging purposes of the potential of the first polarity, and a sub circuit connected to the first and second terminals of the charge coil and to the opposed terminals of the battery for storing the energy of the second polarity potential and for applying the stored energy to the battery with the application to the battery of the potential of the first polarity.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: June 7, 1983
    Assignee: Outboard Marine Corporation
    Inventor: Joseph B. St. Ledger
  • Patent number: 4355351
    Abstract: Disclosed is a class of power converters which extract electric energy from a source of A.C. or D.C. power and transform this energy to a desired and closely controlled voltage level for use by a pulse demanding load such as a pulsed radar or laser system. The converter eliminates the need for a D.C. link anywhere in the converter system and the need for low frequency power filters. The invention includes a transformerless circuit with galvanic isolation between system input and output terminals and controlled voltage scaling.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: October 19, 1982
    Inventor: Francisc C. Schwarz
  • Patent number: 4323947
    Abstract: A diode-capacitor multiplier circuit usable with an electro-static spray gun has two different values of capacitors. By changing the ratio of the number of larger size capacitors to the number of smaller size capacitors, the amount of energy stored in the multiplier circuit may be increased or decreased changing the probability of ignition, and also the quality of the coating received by the subject article.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: April 6, 1982
    Assignee: J. Wagner AG.
    Inventor: Willi Huber
  • Patent number: 4309747
    Abstract: A higher current capability is provided in a high voltage accelerator of the Dynamitron type (U.S. Pat. No. 2,875,394) by paralleling basic building blocks whereby increased current is achieved without any change in the circuits of the basic building block which are interleaved to permit parallel connection and thus current multiplication without affecting machine voltage or performance.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: January 5, 1982
    Assignee: Radiation Dynamics, Inc.
    Inventor: Chester C. Thompson
  • Patent number: 4298926
    Abstract: A DC-to-DC converter employs four transistor switches in a bridge to chop DC power from a source, and a voltage multiplying diode rectifying ladder network to rectify and filter the chopped DC power for delivery to a load. The bridge switches are cross-coupled in order for diagonally opposite pairs to turn on and off together using RC networks for the cross-coupling to achieve the mode of operation of a free running multivibrator, and the diode rectifying ladder is configured to operate in a push-pull mode driven from opposite sides of the multivibrator outputs of the bridge switches. The four transistor switches provide a squarewave output voltage which has a peak-to-peak amplitude that is twice the input DC voltage, and is thus useful as a DC-to-AC inverter.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: November 3, 1981
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: James M. Black
  • Patent number: 4270166
    Abstract: A circuit arrangement for producing a regulated high dc voltage from three-phase current utilizes a three-phase current bridge rectifier which is connected to lines for the three phases of the three-phase current, and a first circuit having a transistor is arranged parallel to the three-phase current bridge rectifier circuit and includes a base for receiving a control current. In each line of a three-phase supply, a series resistance is connected in front of the connection points of the lines of the three-phase current bridge rectifier.
    Type: Grant
    Filed: February 15, 1979
    Date of Patent: May 26, 1981
    Assignee: Siemens Aktiengesellschaft
    Inventor: Josef Immler
  • Patent number: 4268899
    Abstract: A full wave (RMS) bridge circuit is disclosed for regulating a nominal 200 to 240 V AC bulk voltage to a nominal 300 V full wave rectified DC bulk voltage for all line and load conditions. The circuit automatically adjusts to varying line voltages and operates in any one of four modes: (i) full wave bridge, (ii) phase controlled bridge-doubler, (iii) phase controlled doubler, or (iv) non-controlled doubler to maintain the nominal DC output voltage.
    Type: Grant
    Filed: June 15, 1979
    Date of Patent: May 19, 1981
    Assignee: Sperry Corporation
    Inventor: Gary J. Rokas
  • Patent number: 4259600
    Abstract: An integrated control device for controlling a device such as a LED display or a miniature stepping motor for an electronic watch comprises at least one insulated-gate field effect transistor for controlling the supply of current to the element. The gate of the F.E.T. is connected to a control circuit including a voltage multiplier comprising a series-connected chain of rectifiers and a plurality of capacitors connected between the respective junctions between rectifiers and alternate inputs. High frequency signals of opposite phase are supplied to the inputs under control of an input control signal. Circuit means are provided for starting the action of the voltage multiplier at the beginning of an input control signal and for short-circuiting the output of the control circuit at the end of an input control signal.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: March 31, 1981
    Assignee: Centre Electronique Horloger S.A.
    Inventors: Jean Fellrath, Eric Vittoz
  • Patent number: 4246635
    Abstract: A power supply device which boosts and stabilizes the voltage of a dc power supply includes an oscillator circuit connected to the dc power supply, a voltage multiplying rectifier circuit which rectifies the output of the oscillator circuit and boosts the voltage and an oscillator control circuit which monitors the boosted voltage and stabilizes the boosted voltage by on-off control of the oscillator circuit. The voltage multiplying rectifier circuit includes a voltage storage element, such as a capacitor connected in parallel with the load driven by the power-supply device. When the output voltage of the device exceeds a predetermined reference voltage, the oscillator control circuit turns the oscillator circuit off. The voltage storage element is thus no longer supplied with electric energy and begins to discharge through the load thereby lowering the output voltage of the device.
    Type: Grant
    Filed: October 12, 1978
    Date of Patent: January 20, 1981
    Assignee: Hochiki Corporation
    Inventor: Takeo Arima
  • Patent number: 4196465
    Abstract: An electrostatic coating gun in which there is mounted a high-voltage generator for powering charging electrodes arranged at the region of the gun muzzle. To improve maintenance of the high-voltage generator the latter is subdivided into modular-like circuit components which can be interconnected by means of detachable electrical connections and removably arranged in a chamber formed in the spray gun. The detachable electrical connections advantageously are in the form of plug connections and the chamber is preferably of elongate configuration and arranged parallel to the gun barrel in a gun body. The chamber can be closed at one end and at the other end can be closable by means of a cover.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: April 1, 1980
    Assignee: Gema AG Apparatebau
    Inventor: Karl Buschor
  • Patent number: 4167777
    Abstract: An alternating current input to direct current output power supply providing a regulated constant voltage output or constant current output and incorporating a switching-mode regulating element. Regulation is primarily obtained by means of a bi-directional switching element operated at a relatively low voltage, and the alternating current voltage output from the switching element and an associated power transformer is applied to a rectifying voltage multiplier to produce a high voltage output. The voltage multiplier is subject to receiving an unbalanced potential, thereby imposing a dc off-set potential onto the switching element to cause instability in the potential at the power supply output. A correcting circuit is provided to eliminate the effect of the dc off-set potential on the switching element.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: September 11, 1979
    Assignee: Instrumentation Specialties Company
    Inventor: Robert W. Allington
  • Patent number: 4167036
    Abstract: A DC voltage converter includes an oscillator that converts a DC battery voltage to an oscillating voltage, a low voltage transformer that increases the oscillating voltage to a higher oscillating voltage, and a voltage rectifying-capacitor charging network or multiplier that increases the higher oscillating voltage to yet a higher DC voltage at an output terminal for DC high voltage utilization devices and the like. An electric control switch is selectively actuated by the user to apply the battery voltage to the oscillator, resulting in the generation of the stepped-up DC voltage at an output terminal. Another DC voltage converter has an electronic switching circuit that automatically turns the oscillator on and off and a load capacitor across the electrodes that is charged and discharged to provide a shocking voltage. Utilization devices for the voltage developed by the converter shown are a miniature animal training device and a cattle prod device.
    Type: Grant
    Filed: August 10, 1977
    Date of Patent: September 4, 1979
    Assignee: U and I, Ltd.
    Inventor: Frank M. Kenney
  • Patent number: 4109306
    Abstract: A power supply for providing two different DC voltages from a transformer having a center tapped secondary winding is disclosed. An arrangement of diodes and capacitators forming a voltage doubler is connected to the secondary winding to provide a low DC voltage from the center tap approximately equal to one half of the RMS voltage across the secondary winding, and a higher DC voltage greater than twice the RMS value of the AC voltage across the secondary winding of the transformer.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: August 22, 1978
    Assignee: Teccor Electronics, Inc.
    Inventor: William B. Mason
  • Patent number: 4079265
    Abstract: For energizing an X-ray tube in a diagnostic X-ray unit, a group of capacitors are each charged up to a voltage lower than that required by the X-ray tube, and then the capacitors are discharged one after another through the primary winding of a voltage step-up transformer in such a manner as to produce AC in the secondary winding which is then rectified and applied to the X-ray tube.
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: March 14, 1978
    Assignee: Wego Condenser Company Limited
    Inventor: David Kerr Woodburn
  • Patent number: 4042871
    Abstract: Circuitry for providing high voltage DC power from commercially available 60 hertz AC utility power. The incoming 60 hertz AC voltage is rectified to a DC voltage. This DC voltage is then converted to a high frequency AC voltage by means of a sine wave inverter. This high frequency sine wave voltage is then converted to a different voltage and rectified by a voltage doubler. The inversion and rectification are under the control of logic circuitry which includes means for sensing line faults to provide circuit protection.
    Type: Grant
    Filed: November 14, 1975
    Date of Patent: August 16, 1977
    Assignee: ECC Corporation
    Inventors: Calvin E. Grubbs, Jack B. Harwell
  • Patent number: 4041366
    Abstract: A voltage multiplier device is disclosed in which the capacitors are arranged and formed in a hollow cylindrical shape and the diodes are interconnected in a zigzag pattern along the outer circumference of the tubular capacitor roll. The device of this invention has particular use for generating the beam acceleration voltage in television picture tubes. The interior of the tubular capacitor roll has space and mounting means associated therewith which permit the device to be mounted on one arm of the magnetic core of a line transformer. The entire device, with the exception of the terminals and connector elements, are built into an insulated casing which is sealed with a sealing compound or formed into the shape of the block with the aid of a casting resin.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: August 9, 1977
    Assignee: International Standard Electric Corporation
    Inventor: Werner Bauer