| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Motor drive device including function to detect failure in insulation resistance deterioration detection unit of motor, and failure detection method | US14685672 | 2015-04-14 | US09846190B2 | 2017-12-19 | Masaya Tateda; Hiroyasu Sato; Akira Hirai |
| A motor drive device includes a power source unit rectifying AC voltage to DC voltage and to smooth the DC voltage by a capacitor, a motor drive amplification, a power source voltage measurement unit, an insulation resistance deterioration detection unit having a contact unit connecting one end of the capacitor to the ground and a current detection unit provided between the other end of the capacitor and a motor coil, and detecting a deterioration in an insulation resistance of the motor based on a detected signal obtained from a closed circuit formed by the contact unit, the capacitor, the motor coil, and the ground by using the current detection unit, and a failure detection unit detecting a failure in the insulation resistance deterioration detection unit based on the detected signal in the insulation resistance deterioration detection unit and a voltage value measured by the power source voltage measurement unit. | ||||||
| 62 | System and method for starting a variable frequency drive with reduced arc flash risk | US14870269 | 2015-09-30 | US09680388B2 | 2017-06-13 | Stan Rex Simms; Irving Albert Gibbs |
| In one embodiment, a variable frequency drive system includes a main contactor, a variable frequency drive, a charging module structured to generate a magnetizing AC voltage, wherein the charging module is structured to selectively provide the magnetizing AC voltage to a transformer of the variable frequency drive, and a sensing and control circuit having a number of sensors operably associated with the variable frequency drive. The sensing and control circuit is structured to detect a short circuit condition in the variable frequency drive when the magnetizing AC voltage is provided to the transformer based on an output of at least one of the number of sensors, and responsive thereto prevent the main contactor from being closed and thereby prevent the main AC voltage from being provided to the transformer. | ||||||
| 63 | Methods providing control for electro-permanent magnetic devices and related electro-permanent magnetic devices and controllers | US14222886 | 2014-03-24 | US09620953B2 | 2017-04-11 | John W. Powell, Jr. |
| Methods may be provided to control an electro-permanent magnetic device powered from an AC mains power source provided through first and second power lines of a controller, wherein a first switch is provided on the first power line between the AC mains power source and the electro-permanent magnetic device and a second switch is provided on the second power line between the AC main power source and the electro-permanent magnetic device. In particular, a sequence of switching pulses may be transmitted through the first and second switches to change a magnetic state of the electro-permanent magnetic device. Related controllers are also discussed. | ||||||
| 64 | SAFETY CLAMP SYSTEM FOR EMERGENCY START OF VEHICLE BATTERY | US14861540 | 2015-09-22 | US20160285258A1 | 2016-09-29 | Kun-Chang WU; Po-Hung CHEN; Page XING |
| A safety clamp system for an emergency start of a vehicle battery comprises a boost circuit, a voltage-stabilizing circuit, a control unit, a power detection circuit, a battery-clamp-loose detection circuit, an alarm circuit, an auto-detect-battery-voltage-and-short-circuit detection circuit, a driving circuit and a turn-on/off detection circuit. The power detection circuit and the auto-detect-battery-voltage-and-short-circuit detection circuit detect whether an input voltage or the vehicle battery is normal or abnormal. If normal, the control unit controls the driving circuit to drive the turn-on/off detection circuit, so that a power supplied by an external lithium battery is sent to the vehicle battery. If abnormal, abnormal detection signals are sent to the control unit to drive the alarm circuit. If a battery clamp is loose, the control unit controls the driving circuit to stop driving the turn-on/off detection circuit, so that the power is not sent to the vehicle battery. | ||||||
| 65 | ELECTRONIC DEVICE AND MOTHERBOARD AND PROTECTING CIRCUIT OF ELECTRONIC DEVICE | US14594563 | 2015-01-12 | US20160156181A1 | 2016-06-02 | XIN YE; CHUN-SHENG CHEN |
| An electronic device includes a chassis with a power button and a motherboard. The motherboard includes a slot, a controller chip, a startup circuit coupling to the power button, and a protecting circuit. The protecting circuit includes an electronic switch and an AND gate circuit. The electronic switch includes a first terminal coupled to the slot, a second terminal coupled to a ground, and a third terminal coupled to a first power supply through a first resistor. The AND gate circuit includes a first input end coupled to the first power supply, a second input end coupled to the controller chip, and an output end coupled to the startup circuit. The power button is pressed down, the controller chip outputs a control signal with a high voltage to the second input end of the AND gate circuit. | ||||||
| 66 | SAFETY APPARATUS OF FUEL CELL VEHICLE AND METHOD FOR CONTROLLING THE SAFETY APPARATUS | US14838730 | 2015-08-28 | US20160141863A1 | 2016-05-19 | JuHan Kim; Young Bum Kum; Yong Sun Park; Soon Il Jeon; Nam Woo Lee; Sae Hoon Kim |
| A safety apparatus uses a fuel cell and a high voltage battery as a power source, and includes: a first voltage sensor that measures a voltage of a positive side of a voltage bus; a second voltage sensor that measures a voltage of a negative side of the voltage bus; and a controller that determines an electrical insulation between the positive side of the voltage bus and the electrical chassis based on the voltage of the positive side of the voltage bus and determines an electrical insulation between the negative side of the voltage bus and the electrical chassis based on the voltage of the negative side of the voltage bus. | ||||||
| 67 | HIGH VOLTAGE DIRECT CURRENT TRANSMISSION AND DISTRIBUTION SYSTEM | US14997797 | 2016-01-18 | US20160134118A1 | 2016-05-12 | HARRY BROUSSARD; GERALDO NOJIMA |
| A direct current to alternating current inverter sub-system is for a HVDC distribution system. The DC to AC inverter sub-system includes an enclosure and a DC to DC galvanically isolated buck converter having a DC input electrically connectable to a HVDC cable and a DC output. A DC to AC inverter includes a DC input electrically connected to the DC output of the DC to DC galvanically isolated buck converter and an AC output electrically connectable to an AC transmission line. The DC to AC inverter is mounted in an enclosure with the DC to DC galvanically isolated buck converter, in order that the DC output of the DC to DC galvanically isolated buck converter is directly electrically connected within the enclosure to the DC input of the DC to AC inverter. | ||||||
| 68 | Motor drive device having function of detecting abnormality of DC link unit | US14256537 | 2014-04-18 | US09294024B2 | 2016-03-22 | Youichirou Ooi |
| A motor drive device according to one embodiment of the present invention includes a converter (2) for converting an AC voltage input from a main power supply into a DC voltage, a DC link unit (4) for rectifying the DC voltage output from the converter, an inverter (10) for converting the DC voltage rectified by the DC link unit into an AC voltage for driving a motor using a semiconductor switching element, a voltage application unit (6) that is provided independently of the main power supply to apply a voltage to the DC link unit, a voltage detector (7) for detecting a voltage of the DC link unit after application of the voltage by the voltage application unit, and an abnormality determination unit (8) for determining the presence or absence of an abnormality of the DC link unit based on the voltage detected by the voltage detector. | ||||||
| 69 | High voltage direct current transmission and distribution system | US13901770 | 2013-05-24 | US09270119B2 | 2016-02-23 | Harry Broussard; Geraldo Nojima |
| A direct current to alternating current inverter sub-system is for a HVDC distribution system. The DC to AC inverter sub-system includes an enclosure and a DC to DC galvanically isolated buck converter having a DC input electrically connectable to a HVDC cable and a DC output. A DC to AC inverter includes a DC input electrically connected to the DC output of the DC to DC galvanically isolated buck converter and an AC output electrically connectable to an AC transmission line. The DC to AC inverter is mounted in an enclosure with the DC to DC galvanically isolated buck converter, in order that the DC output of the DC to DC galvanically isolated buck converter is directly electrically connected within the enclosure to the DC input of the DC to AC inverter. | ||||||
| 70 | MOTOR DRIVE DEVICE INCLUDING FUNCTION TO DETECT FAILURE IN INSULATION RESISTANCE DETERIORATION DETECTION UNIT OF MOTOR, AND FAILURE DETECTION METHOD | US14685672 | 2015-04-14 | US20150293165A1 | 2015-10-15 | Masaya Tateda; Hiroyasu Sato; Akira Hirai |
| A motor drive device includes a power source unit rectifying AC voltage to DC voltage and to smooth the DC voltage by a capacitor, a motor drive amplification, a power source voltage measurement unit, an insulation resistance deterioration detection unit having a contact unit connecting one end of the capacitor to the ground and a current detection unit provided between the other end of the capacitor and a motor coil, and detecting a deterioration in an insulation resistance of the motor based on a detected signal obtained from a closed circuit formed by the contact unit, the capacitor, the motor coil, and the ground by using the current detection unit, and a failure detection unit detecting a failure in the insulation resistance deterioration detection unit based on the detected signal in the insulation resistance deterioration detection unit and a voltage value measured by the power source voltage measurement unit. | ||||||
| 71 | Fault tolerant fail-safe link | US13650285 | 2012-10-12 | US08891218B2 | 2014-11-18 | Robert Dennis Holley; N. Evan Lurton |
| The present disclosure is generally directed to a plurality of solid state switches of varying periphery sizes connected in series between a power source and a load. A built-in test circuit senses an overvoltage condition across one or more of the varying periphery sizes and opens or closes the one or more of the varying periphery sizes in accordance with a measured voltage across at least one solid state switch of the plurality of solid state switches. | ||||||
| 72 | METHODS PROVIDING CONTROL FOR ELECTRO-PERMANENT MAGNETIC DEVICES AND RELATED ELECTRO-PERMANENT MAGNETIC DEVICES AND CONTROLLERS | US14222886 | 2014-03-24 | US20140285930A1 | 2014-09-25 | John W. Powell |
| Methods may be provided to control an electro-permanent magnetic device powered from an AC mains power source provided through first and second power lines of a controller, wherein a first switch is provided on the first power line between the AC mains power source and the electro-permanent magnetic device and a second switch is provided on the second power line between the AC main power source and the electro-permanent magnetic device. In particular, a sequence of switching pulses may be transmitted through the first and second switches to change a magnetic state of the electro-permanent magnetic device. Related controllers are also discussed. | ||||||
| 73 | BREAKER DESIGN FOR POWER SYSTEM RESILIENCY | US14210346 | 2014-03-13 | US20140268430A1 | 2014-09-18 | Edward Peter Kenneth Bourgeau |
| An autonomous breaker can apply a current through a high impedance source to a bus coupled to either end of a breaker in order to measure an impedance of the bus. The status of the bus can be determined from the measurement. Based on the determined status, a fault detection procedure can be selected and implemented to determine if a fault exists on the bus. When the fault detection procedure has been implemented and no fault has been detected, the breaker can close, and thus couple the bus to another bus. | ||||||
| 74 | Fault Tolerant Fail-Safe Link | US13650285 | 2012-10-12 | US20140103990A1 | 2014-04-17 | Robert Dennis Holley; N. Evan Lurton |
| The present disclosure is generally directed to a plurality of solid state switches of varying periphery sizes connected in series between a power source and a load. A built-in test circuit senses an overvoltage condition across one or more of the varying periphery sizes and opens or closes the one or more of the varying periphery sizes in accordance with a measured voltage across at least one solid state switch of the plurality of solid state switches. | ||||||
| 75 | PERMANENT MAGNET ALTERNATOR MARGIN DETECTOR | US13161815 | 2011-06-16 | US20120320475A1 | 2012-12-20 | Gary L. Hess; James A. Gosse; Steven A. Avritch |
| A shunt regulated permanent magnet alternator voltage source includes a permanent magnet alternator, a shunt regulator, and a pulse width modulation controller. Also included is a load controller capable of detecting a PMA margin. | ||||||
| 76 | Electrical safety outlet | US12400172 | 2009-03-09 | US07978447B2 | 2011-07-12 | Michael Baxter |
| A safety outlet that prevents hazardous conditions is described. Embodiments of the outlet use safe low-voltage DC power to check and ensure that an appliance is plugged into the outlet, that the appliance does not have short circuits or ground faults, and that the appliance is switched on. Some embodiments warn of unsafe conditions. Until the safety checks are performed and satisfactorily passed, embodiments of the outlet keep the AC power turned off and isolated from the outlet. Only then is the receptacle powered, after which the appliance can be used normally. Once the appliance is switched off, the power at the outlet is also turned off automatically. When an appliance is in use, some embodiments of the invention continue providing ground fault protection using GFCI technology. All this is performed automatically and quickly, nearly imperceptibly in normal use. Some embodiments may be integrated with external control systems. | ||||||
| 77 | Circuit Breaker With Improved Re-Closing Functionality | US12969298 | 2010-12-15 | US20110085273A1 | 2011-04-14 | Tord Bengtsson; Gabriel Olguin; Jianping Wang |
| A circuit breaker for protecting a power line. The circuit breaker includes a control unit and a circuit breaking element disconnecting the power line from a power source. The control unit detects a fault on the power line, opens the circuit breaking element, which opening starts a disconnection time interval, injects a test signal into the power line, measures a response, determines an impedance of the power line from the response, analyses the impedance during the time interval based on comparing the impedance with a reference threshold, determines a permanent or a temporary fault based on the analysed impedance, re-closes the circuit breaking element after the time interval if the fault is temporary and keeps the circuit breaking element open after the time interval if the fault is permanent. | ||||||
| 78 | Apparatus, system, and method for safely connecting a device to a power source | US12174536 | 2008-07-16 | US07859132B2 | 2010-12-28 | Chu R. Chung; Cecil C. Dishman; Jen-Ching Lin; Randhir S. Malik |
| An apparatus, system, and method are disclosed for safely connecting a device to a power source. The invention includes a power bus switch that operates to selectively allow operational power to flow from a power supply to a load. The operational power is independent of auxiliary power which may be separately provided to the load. A detection module determines whether an input impedance of the load is greater than a minimum impedance threshold in response to the load being connected to the power supply. A switch module causes the power bus switch to allow operational power to flow to the load in response to the detection module determining that the input impedance is greater than the minimum impedance threshold. Thus, if the load has an acceptable input impedance level, then operational power may be provided to the load without risk of failure to the power system. | ||||||
| 79 | EARTH LEAKAGE CIRCUIT BREAKER WITH FUNCTION FOR DETECTING REVERSE LEAKAGE CURRENT | US12670371 | 2008-01-30 | US20100208396A1 | 2010-08-19 | Han Sik Lee; Gi Man Cha |
| An earth leakage circuit breaker (ELCB) with a function of detecting a leakage current which backflows while cutting off an electric leakage is disclosed. The ELCB includes: a breaker portion for detecting an occurrence of an electric leakage to cut off electrical power; and a leakage current detecting portion electrically connected in parallel with the breaker portion between an input terminal and an output terminal of the breaker portion and detecting a leakage current which backflows from the output terminal after electrical power is cut off by the breaker portion. | ||||||
| 80 | High current capable circuit testing closer apparatus and method | US11788115 | 2007-04-19 | US07626397B2 | 2009-12-01 | John C. Opfer; Albert B. Tucker, Jr.; Christopher R. Lettow; Alejandro Montenegro; Raymond P. O'Leary |
| A circuit testing closer may include a fault isolating switching device coupled between a supply side and a load side of a power distribution system and a current pulse generator coupled in parallel to the switch to generate a current pulse within the power distribution system subsequent to a fault isolation for testing the power distribution system. The current pulse generator may include an electromechanical actuator, an electromagnetic actuator or a solid state switching device. The circuit testing closer may be a purpose-built combination device, or the fault isolating switching device and the current pulse generator may be separately coupled and commonly controlled devices. The fault isolating switching device may have continuous current rating greater than a continuous current rating of the pulse generating device. | ||||||
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