Patents Examined by Peter S. Wong
  • Patent number: 6359765
    Abstract: A fused terminal for use with a network protector, the disconnect terminal including an integral fuse and being located outside of the network protector housing and not substantially increasing the overall height of the network protector.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: March 19, 2002
    Assignee: Richards Manufacturing Company
    Inventor: Bruce Bier
  • Patent number: 6359800
    Abstract: A method and system for increasing the output of an alternator for an automotive vehicle has a first three-phase winding (18) and a second three-phase winding (20) that are coupled to a respective first rectifier circuit (26) and a second rectifier circuit (28). A switch circuit (30) is located between the first rectifier circuit (26) and the second rectifier circuit (28). A controller (32) that is coupled to a speed sensor (34) and provides a signal indicative of the speed of the alternator, controls the operation of the switch circuit (30). When the speed sensor (34) indicates that the speed of the alternator is below a predetermined threshold, the first rectifier circuit (26) and second rectifier circuit (28) are coupled together through switch circuit (30). When the speed sensor (34) indicates that the speed of the alternator is above a predetermined speed, the switch circuit (32) is controlled to an open state so that two parallel half-wave rectifier circuits are formed.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: March 19, 2002
    Assignee: Ford Global Technologies, Inc.
    Inventors: Feng Liang, John Michael Miller, Xingyi Xu
  • Patent number: 6359427
    Abstract: Apparatus and method to provide high line regulation, which can be combined with a low dropout voltage, for linear regulators. The control for the regulators is referenced to ground rather than a relatively noisy power supply terminal so that the control is substantially free of power supply noise. The pass transistor forms the second transistor of a current mirror mirroring the current from the control. Referencing the control to ground and mirroring the control current to the pass transistor makes the output of the regulator substantially independent of the power supply noise. Various embodiments are disclosed.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: March 19, 2002
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Christopher F. Edwards, J. William Maney
  • Patent number: 6359420
    Abstract: A coupling circuit for charging a pulse forming network (PFN) or capacitor load to a precise voltage is disclosed. The coupling circuit is connected to a DC input voltage source. The circuit includes a charging transformer, having an input winding connected in series with a switch circuit and the DC voltage source. The output winding of the charging transformer is connected to the PFN or capacitor load. A charging inductor is placed in series with the output winding. A control circuit monitors and calculates the total amount of energy present at the load and the charging inductor, and causes the switch circuit to open when the total charge reaches a predefined level, thereby allowing charge stored in the inductor to be transferred to the PFN or capacitor load.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: March 19, 2002
    Assignee: Varian Medical Systems, Inc.
    Inventor: Roger N. Hitchcock
  • Patent number: 6359418
    Abstract: A replaceable battery module for a battery-powered device includes a protective conductive canister sized to receive an electric storage battery. A conductive contact extends through an aperture of the canister for contacting a first terminal of the battery. A second terminal of the battery is electrically contacted by the canister. A preferred configuration of the canister and contact allow both of the terminals of the battery to be accessed from one end of the battery module. A seal is positioned between the canister and the contact for electrically insulating them and for sealing the aperture to prevent leakage of the battery beyond the battery module. A socket for electrically contacting the battery module is formed by a power input terminal assembly mounted within a battery-receiving cavity of a battery-powered device.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: March 19, 2002
    Assignee: Leupold & Stevens, Inc.
    Inventors: Rick Regan, Victoria J. Peters, Wayne Perley
  • Patent number: 6359764
    Abstract: A communication adapter includes a top cover shell having a power input hole and a power output hole and an elongated signal output hole, a power cable having a power input connector disposed at one end and fixedly mounted in the power input hole on the top cover shell for connection to utility power source and a power output connector disposed at an opposite end and extended out of the power output hole on the top cover shell for power output to an external electronic apparatus, a bottom cover shell covered on the top cover shell, a rotary cap rotatably covered on the bottom cover shell, the rotary cap having a tubular upright center shaft inserted through a center hole on the bottom cover shell, and a signal cable wound round the tubular upright shaft, the signal cable having a signal input connector disposed at one end and extended out of a cable hole on the bottom cover shell, and a plurality of signal output connectors disposed in parallel at an opposite end and respectively fixedly fastened to the signa
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: March 19, 2002
    Inventor: Jonie Chou
  • Patent number: 6356051
    Abstract: A battery pack and a PTC device are provided that can be used safely under large current loads by increasing the area of the incorporated PTC layer so as to decrease its internal resistance. The battery pack has a plurality of unit cells (1) placed side by side in parallel and the PTC device P to protect the unit cells (1) from overcurrents. The PTC device P has a first electrode (3) and a second electrode (4) connected to the both surfaces of the PTC layer (2). The PTC layer is formed to an outer shape that covers almost the entirety of the end surfaces of the two unit cells (1) to which the first electrode (3) and the second electrode (4) are connected, and has through holes (2B) positioned against the end electrodes (1A) of the unit cells (1).
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: March 12, 2002
    Assignees: Tyco Electronics Raychem K.K., Sanyo Electric Co., Ltd.
    Inventors: Takashi Hasunuma, Atsushi Watanabe, Kazuo Osaki, Fumiyoshi Yoshinari
  • Patent number: 6356471
    Abstract: A connectionless paralleling and load sharing system and method for power sources are presented. The invention provides a dynamic feedback adaptive control system that enables proper load sharing among paralleled power sources without the need for interconnection therebetween. Only the individual source's voltage and current are sensed by its controller. These output parameters are then used to modify a reference voltage used by the controller to control the source's output waveform. This reference voltage compensation is accomplished through two feedback control loops, an outer loop for the voltage compensation and an inner loop for the current compensation. The outer loop includes an integration of the voltage error between the desired voltage and the actual voltage sensed at the source's output. The inner loop is filtered and operates in a proportional fashion to rapidly adjust the output.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: March 12, 2002
    Assignee: Powerware Corporation
    Inventor: Wendy Xiaowen Fang
  • Patent number: 6356049
    Abstract: A power supply coupler for a battery charging device that includes a core, a coil surrounding the core, and a plastic case enclosing the core and the coil. The coil is electrically connected to a power supply device of the battery charging device with a cable. The power supply coupler has an interconnection member located between the coil and the case for transferring impact forces acting on the case to the coil.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: March 12, 2002
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventor: Koji Oguri
  • Patent number: 6356057
    Abstract: The invention is directed to techniques for testing a powerability characteristic of a backup power supply for a computerized device using a discharge circuit that is different than circuitry of the computerized device. The discharge circuit is capable of draining float charge of the backup power supply thus enabling a measuring circuit to properly determine whether the backup power supply is suitable for providing the operating power to the computerized device for the predetermined amount of time in the event the computerized device no longer receives main power from the main power supply. One arrangement of the invention is directed to a computer system that includes a computerized device, a main power supply that provides power to the computerized device, a backup power supply coupled to the main power supply to receive charge from the main power supply.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: March 12, 2002
    Assignee: EMC Corporation
    Inventors: Marcel Shilo, Eamonn O'Reilly
  • Patent number: 6356060
    Abstract: The present invention relates to a bidirectional switching circuit including, in series, a bidirectional switching element controllable to be turned off and turned on, and a bidirectional conduction element forming a dipole and automatically selecting the conduction direction.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: March 12, 2002
    Assignee: STMicroelectronics S.A.
    Inventor: Laurent Gonthier
  • Patent number: 6356061
    Abstract: The present invention includes a linear regulator with a Darlington bipolar output stage. The linear regulator includes a starting circuit, an output stage, and a reference voltage generator connected to a control loop. The starting circuit has output terminals connected to current sources and an input terminal connected to an input reference terminal of the linear regulator via a transistor of the PNP-type. The output stage includes two Darlington-connected transistors. The reference voltage generator supplies a voltage value approximately equal to the chosen output voltage value of the linear regulator. The control loop is configured as a voltage follower, which receives a reference voltage value from the reference voltage generator.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: March 12, 2002
    Assignee: STMicroelectronics S.r.l.
    Inventor: Leonardo Perillo
  • Patent number: 6356058
    Abstract: The invention relates to a method and apparatus for monitoring and maintaining a plurality of batteries by performing a normal analysis on all of the batteries, selecting a marginal battery, replacing the marginal battery with an auxiliary battery, and offline performing a detailed analysis on the marginal battery. The marginal battery is then serviced/discarded according to the results of the detailed analysis.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: March 12, 2002
    Assignee: Honeywell International Inc.
    Inventors: Stephen T. Maio, Thirumalai G. Palanisamy, Harmohan Singh, Rainer Tegge
  • Patent number: 6353524
    Abstract: The invention comprises an input/output circuit of an integrated circuit chip that includes a pad, a protection circuit connected to the pad, and an up-shift circuit connected to the pad and the protection circuit. The up-shift circuit provides a DC bias voltage to signals received by the pad to protect the protection circuit. With the invention, the protection circuit includes only single gate-oxide devices.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: March 5, 2002
    Assignee: International Business Machines Corporation
    Inventor: Jeffrey Hubert Sloan
  • Patent number: 6353306
    Abstract: A system for actively controlling the charging profile of a battery uses a software-based alternator control unit to control the charging voltage. The voltage applied to the battery is initially increased over normal values following battery discharge, to charge the battery back as fast as possible without damaging the battery or alternator. The voltage is then reduced to a normal charging level, and subsequently further reduced to a float level.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: March 5, 2002
    Assignee: Mixon, Inc.
    Inventor: Timothy S. Mixon
  • Patent number: 6353310
    Abstract: A DC/DC charge and supply converting module has a function of constant-current charging an electrical appliance, and a function of supplying constant voltage power to an electrical appliance. The converting module includes a DC/DC converter and a charge module connected with an input end of the DC/DC converter. The charge module includes a comparator, a constant current source connected with a first input end of the comparator, and a bleeder circuit connected to a second input end of the comparator. The comparator is used for controlling an output voltage of the DC/DC converter to remain constant. The constant current source provides a constant current to the corresponding input end of the comparator and allows the DC/DC converter to output a constant current for the purpose of charge.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: March 5, 2002
    Inventor: Tongt-Huei Wang
  • Patent number: 6353525
    Abstract: A power unit for a grid pulsed O-type microwave tube (1) having a cathode (2) and a collector (3), comprises a cathode unit (5) and a collector unit (6), each having two output terminals (7, 8; 9, 10). A first and a second capacitor (C1, C2) are connected between the output terminals of the respective unit (5, 6). One output terminal (7) of the cathode unit (5) is connected to the cathode (2) of the tube (1), while the other (8) is connected to a ground terminal. One output terminal (9) of the collector unit (6) is connected to the collector (3) of the tube (1), while the other (10) is interconnected with that one (7) of the output terminals of the cathode unit (5) that is connected to the cathode (2) of the tube (1). To minimize crosstalk caused by the collector unit (6) across the first capacitor (C1), the output terminals (9, 10) of the collector unit (6) are connected to said second capacitor (C2) via non-capacitive impedances (Z1, Z2), and to said ground terminal via decoupling capacitors (C31, C32).
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: March 5, 2002
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Jan Allansson
  • Patent number: 6351403
    Abstract: A switching power converter for producing regulated D.C. power at two or more voltages. First and second regulation circuits including switching elements are connected across the secondary side of a transformer. A control circuit including a phase lock loop provides a first timing signal in leading relation to the AC input, and a delay circuit which provides a second timing circuit in delayed relation to the first timing signal. A logic circuit is responsive to the first and second timing signals to provide drive signals for the switching elements. The regulation circuits each include a first switching element having a power terminal coupled to the secondary winding and another power terminal is coupled to an intermediate node. A second switching element has a power terminal coupled to the intermediate node and another power terminal coupled to a common node. An inductor is coupled from the intermediate node to an output node.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: February 26, 2002
    Assignee: International Rectifier Corp.
    Inventor: Edgar Abdoulin
  • Patent number: 6350947
    Abstract: A flow-through cable for transmitting information (20) is provided. The cable includes a jacket (22) having a length and an information conducting core (26) coaxially received within the jacket. A first insulation layer (24) surrounds the information conducting core and has a dielectric strength. The cable further includes a first conduit (28) disposed within the jacket. The first conduit is adapted to permit a compound to flow therethrough and is chemically permeable to permit at least a portion of the compound to diffuse through the first conduit.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: February 26, 2002
    Assignee: Utilx Corporation
    Inventors: Glen J. Bertini, Kim Jenkins, Keith Lanan
  • Patent number: 6351130
    Abstract: The invention relates to a device for testing solar home systems including at least one of each of the following components: a photovoltaic solar generator, a battery, a charge controller and a load. According to the invention, connecting means are provided. These enable the device to be connected to the at least one charge controller, the at least one charge controller having been uncoupled from the other components; to the at least one solar generator, to the at least one battery and to the at least one load. The device also includes testing means with which all the components can be tested individually and within their typical operational connections to each other in order to determine the parameters and states which are characteristic to the operativeness of the solar home system being tested. Display means for displaying the parameters and states that are tested are also provided.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: February 26, 2002
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Foschung E.V.
    Inventors: Klaus Preiser, Jérôme Kuhmann