子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | SYSTEM AND METHOD TO MEASURE LOAD TYPE AND EXCLUDE THE HUMAN BODY MODEL | US12495002 | 2009-06-30 | US20100327663A1 | 2010-12-30 | Jeffrey A. Jouper; John S. Lamb, JR. |
| A system and method for controlling connection of an electrical outlet to a power source so as to exclude the human body model. A first signal is generated and fed to the outlet through an outlet control device; feedback from a load at the outlet is detected. The load detector outputs a second signal to an outlet control device. The outlet is connected to the power source in accordance with the second signal. The outlet is not connected to the power source in the absence of a load, or if the detected load is consistent with the human body model. | ||||||
| 242 | Overload protection control mechanism for a power supply | US11580891 | 2006-10-16 | US07599162B2 | 2009-10-06 | Michael Chen |
| The present invention discloses an overload protection control mechanism for a power supply, wherein a control mechanism installed between two connectors automatically switches the DC power states of the output signal of the overload protection circuit according to the electric connection state between two connectors. Thereby, the present invention not only can prevent the user, who lacks the knowledge of the overload protection circuit, from incorrectly operating the overload protection circuit but also can protect electronic devices from the damage induced by that an unintended touch switches the overload protection circuit erroneously. | ||||||
| 243 | Overload alarm device and method thereof | US11984564 | 2007-11-20 | US20090128348A1 | 2009-05-21 | Kang-Neng Hsu |
| An overload alarm device is provided. The device is disposed in an electric auxiliary system for avoiding overload of the system. The device includes a current detection unit, a voltage comparison unit and an alarm unit. The current detection unit includes a non-contact sensor connected to the circuit of the system for sensing the current of the system so as to output a voltage signal corresponding to the current. The voltage comparison unit compares the value of the voltage signal with a preset value. As the value of the voltage signal exceeds the preset value, the voltage comparison unit drives the alarm unit to generate an alarm signal. | ||||||
| 244 | Protection device and a method that detect electricity | US11600924 | 2006-11-17 | US20080120048A1 | 2008-05-22 | Jian-Lin Zhou |
| A protection device for detecting electricity is composed of a control unit, a set of input end for sampling, a display unit, an acoustic signal generating unit, and a power unit. The aforementioned control unit includes a microprocessor (CPU), a clock pulse wave generator, a first memory, a second memory, an input/output port, and a timer. The microprocessor is based on sampled electricity of load, such as voltage and current, to display power consumed and accumulated time of use, such that a user can be aware of the electricity information at any time for preparation. The sampled data are compared with each setting value pre-stored in the second memory, and if any one of the data exceeds the setting, the microprocessor will output a warning signal or shut down the power, to maintain safety. | ||||||
| 245 | Method and system for sensing switch position to prevent inadvertent startup of a motor | US10696449 | 2003-10-29 | US07112900B2 | 2006-09-26 | Daniele C Brotto |
| A method for preventing sudden inadvertent operation of a motor of a tool or appliance when the motor is initially electrically connected to a power source while an On/Off switch for controlling the motor is in a closed (i.e. ‘On’) position. The method includes electrically connecting the motor to a power source and determining a position of the On/Off switch when the motor is initially electrically connected to the power source. The position of the On/Off switch is determined by either sensing whether current is flowing through the motor or voltage is present at the motor when the motor is initially connected to the power source. | ||||||
| 246 | Monitoring device, electrical machine tool, current supply device, and associated method of operation | US10390840 | 2003-03-18 | US07095235B2 | 2006-08-22 | Arnim Fiebig; Hans-Joachim Baur; Guenter Lohr; Stefan Roepke; Rainer Glauning; Volker Bosch |
| A monitoring device for an electrical machining tool, in particular for temperature monitoring with an accumulator-driven machine, includes a switch element (12) for separating an electrical consumer (14) from a current supply device (10). For detection of a first operating parameter (TMOTOR) of the consumer (14) and/or the current supply device (10), a first sensor (16) is provided, whereby the first sensor (16) is connected with a display unit and/or with the control input of the switch element, in order to control the switching process as a function of the first operating parameter (TMOTOR). Furthermore, the present invention relates to an electrical machining tool as well as a current supply device with the inventive monitoring device and a corresponding method of operation. | ||||||
| 247 | Method of controlling surge current in fan modules and apparatus thereof | US11107789 | 2005-04-18 | US20060072274A1 | 2006-04-06 | Jen-Hsuen Huang; Yang-Wen Su |
| A method of controlling surge current in fan modules is applied in a blade server. The blade server includes a fan module having a first fan motor, a second fan motor, a first resistor/capacitor (RC) circuit and a second RC circuit. The blade server generates a control signal for controlling the first and the second fan motors. The first RC circuit receives and delays the control signal for a period of first time to output a first delay control signal for driving the first fan motor. The second RC circuit receives and delays the control signal for a period of second time to output a second delay control signal for driving the second fan motor. The first time is different from the second time and thus the first surge current in the first fan motor and the second surge current in the second fan motor are generated at different time. | ||||||
| 248 | Terminal table unit and method of controlling same | US11060468 | 2005-02-16 | US20050195546A1 | 2005-09-08 | Hiroshi Itoshima; Katsuya Marumo |
| A terminal table unit is connected to a DC power source and a plurality of loads and serves to receive DC power from a DC power source and to distribute the received power to these loads. The terminal table unit includes a plurality of power supply terminals for connecting to these loads and a control unit that controls the timing of connecting and disconnecting the loads to and from the DC power source, a threshold current value related to the timing of disconnecting the DC power source, the display of current and voltage values and the output relating to an overcurrent and an abnormal voltage value. | ||||||
| 249 | Methods and apparatus for distributing electrical power | US09943124 | 2001-08-30 | US06826029B2 | 2004-11-30 | William J. Purpura |
| A power splitter device includes a power input port, at least three power output ports that each have a separate, resettable overcurrent protection circuit with a maximum current rating; and a port switch configured to provide power from the input port to selectable combinations of one or more of the output ports. The combinations of one or more of the output ports include at least one combination of at least two of the output ports. In addition, the port switch is configured to prevent power from being applied to all of the output ports simultaneously. | ||||||
| 250 | Device for Error Detection and Locking of Power Breakers | US10707266 | 2003-12-02 | US20040156152A1 | 2004-08-12 | Tomas Kalender |
| A device for error detection and mutual locking of at least two switches that sequentially connect motors to a converter has a converter sending switching signals to the at least two switches. The converter, prior to each switching action, checks a switched-off state of all of the at least two switches. The converter performs a current measurement for checking the switched-off state. | ||||||
| 251 | Method for sensing switch closure to prevent inadvertent startup | US10360957 | 2003-02-07 | US20040155532A1 | 2004-08-12 | Daniele C. Brotto |
| A method for preventing sudden inadvertent operation of a motor of a tool or appliance when the motor is initially electrically connected to a power source while an On/Off switch for controlling the motor is in a closed (i.e. nullOnnull) position. The method includes electrically connecting the motor to a power source and determining a position of the On/Off switch when the motor is initially electrically connected to the power source by sensing whether current is flowing through the motor. Additionally, the method includes supplying insufficient power for the motor to function when the motor is initially electrically connected to the power source by controlling the operation of an electronic valve associated with the motor. | ||||||
| 252 | Equipment load safety circuit | US09752340 | 2000-12-29 | US06587325B1 | 2003-07-01 | Kenneth C. Volz |
| A safety circuit according to the invention controls operation of an equipment load. A manual control switch of the safety circuit is connected in series with the equipment load for controlling the flow of electrical current to the equipment load. The equipment load and control switch series combination are further in communication with a relay contact switch of the safety circuit, which, like the manual control switch controls the flow of electrical current to the equipment load. Arranged in this configuration the equipment load operates only if both the mechanical switch and relay contact are closed. If either the manual control switch or the relay contact are open, the equipment load does not operate. | ||||||
| 253 | Network protector relay providing a close function | US09514035 | 2000-02-25 | US06504693B1 | 2003-01-07 | John R. Moffat; John C. Schlotterer; Thomas J. Kenny; David M. Oravetz |
| A network protector relay for a circuit breaker includes a microcontroller routine which provides a positive sequence network voltage from polyphase network voltages on a network bus. Another microcontroller routine provides a positive sequence phasing voltage from the polyphase network voltages on the network bus and polyphase feeder voltages on a feeder bus. A recloser circuit automatically recloses the circuit breaker connected between the polyphase feeder bus and the polyphase network bus in response to a function of a plurality of setpoints and the positive sequence phasing voltage which indicates a first flow of power from the polyphase feeder bus to the polyphase network bus. A receiver receives a remote close command. Another routine temporarily changes at least one of the setpoints in response to the received close command, in order to conditionally close the circuit breaker for a second flow of power from the polyphase feeder bus to the polyphase network bus, with the second flow of power being less than the first flow of power. | ||||||
| 254 | POWER SUPPLY WITH INTERFACE TO DETERMINE POWER REQUIREMENTS OF DEVICES COUPLED THERETO | US09823730 | 2001-03-29 | US20020141217A1 | 2002-10-03 | Paul M. Cohen; Christopher A. Meredith; Ronald J. Child |
| Intelligent power supplies to provide power to electronic devices in a manner the avoids causing a power supply circuit fuse to blow or breaker to trip are disclosed. The power supply circuit includes a power supply control device that determines whether supplying power to an additional electronic device would exceed the capacity of the circuit and cause the fuse to blow or the breaker to trip. The power supply control device communicates with electronic devices via a power control interface to determine the power requirements of the electronic devices. Power is supplied to the devices that can be supplied without causing the fuse to blow or the breaker to trip. Power is not supplied to the devices that would cause the fuse to blow or the breaker to trip. | ||||||
| 255 | Remote safety switch for electric appliances | US09792775 | 2001-02-23 | US20020117902A1 | 2002-08-29 | Michael F. Evers; Mark Raffel; Lee B. Raffel |
| A power control device including a remote switch box having a remote switch box having a remote safety switch and a micro-controller, and an interface box operably controlled by the micro-controller. When operated, the remote safety switch prevents unauthorized use of electrical appliances as well as: continued shutdown of electrical appliances after a power outage; regulation of power input for electrical appliances; and detached remote operation. | ||||||
| 256 | Electric apparatus capable of turning off a power supply circuit automatically to inhibit resuming of operation until safety is ensured at the time of restoration from abnormal stop | US09453264 | 1999-12-02 | US06291910B1 | 2001-09-18 | Toshiharu Mori; Katsuhiko Tochihara; Kaoru Soeta |
| In the electric apparatus of the present invention, when the supply of electric power to a primary power supply circuit is started, a check is made to see if the apparatus has been turned ON by operation of a switch device S, by collation with the contents stored in a memory (not shown), and in accordance with the result of the collation a control system circuit makes control to continue or interrupt the supply of electric power to the primary power supply circuit. Therefore, in the case of a rise from an abnormal condition such as power failure, the supply of electric power to the primary power supply circuit can be interrupted rapidly. Thus, whether a trouble has occurred or not during power failure can be checked before resuming the operation and the occurrence of a danger can be prevented thereby. | ||||||
| 257 | Power distribution apparatus comprising relay devices for controlling current flow along power paths of the power distribution apparatus | US09191761 | 1998-11-14 | US06232675B1 | 2001-05-15 | Kenneth T Small |
| A power distribution apparatus which utilizes relay devices to control the flow of power along power paths from an input terminal to one or more output terminals electrically coupled to the power paths. For each power path provided in the power distribution apparatus, the power distribution apparatus comprises one relay device and one or more output terminals associated with each power path. In operation, the relay device associated with each power path controls the flow of current from the input terminal to the output terminals electrically coupled to the power path. A switching assembly is electrically coupled to the power distribution apparatus for controlling the relay devices. When the switching assembly is activated, the relay devices are switched on and current is allowed to flow from the input terminal to the output terminals. When the switching assembly is deactivated, the relay devices are switched off and current is prevented from flowing from the input terminal to the output terminals. Preferably, the power distribution apparatus comprises a controller which controls the operation of the power distribution apparatus. When the switching assembly is activated and deactivated, the controller causes the relay devices to be closed and opened, respectively. Preferably, the controller switches the relay devices on and off in accordance with a predetermined timing sequence such that a time delay occurs from the time that one relay device is turned on or off before another relay device is switched on or off in the power distribution apparatus. | ||||||
| 258 | Anti-reactivation safety device | US09286491 | 1999-04-05 | US06208042B1 | 2001-03-27 | Gilbert Solis |
| An anti-reactivation safety device for an electrical load-bearing device, including a power input line for delivering current from a power source across the anti-reactivation device to the load-bearing device. A current transfer switch positioned along the power-input line is provided. The current transfer switch includes a switch for engagement in an open position and in a closed position to thereby control the flow of current across the power-input line. The anti-reactivation safety device further includes a power return line. A latch circuit, linked with the power return line and with the current transfer switch, is provided for biasing the switch in an open position and in a closed position. The latch circuit includes a current divider. The anti-reactivation safety device includes a load sensor circuit for selectively engaging the latch circuit. The load sensor circuit includes a first line linked with the current transfer switch and a second line linked with the current divider of the latch circuit and linked with the power return line. | ||||||
| 259 | Motor controller having dead ended winding detection capability on a single phase line | US09164873 | 1998-10-02 | US06184795B2 | 2001-02-06 | Lynn Stewart Johnson |
| Problems associated with delta motors and motor controllers being subjected to the potentially damaging combination of extremely low motor torque and very high overcurrent conditions resulting from a single dead ended motor winding are eliminated in a motor controller that automatically inhibits operation of the delta motor upon detecting that the two leads of a single motor winding have both been connected to the supply lines for a single phase of a three phase power source. | ||||||
| 260 | Motor controller having automatic swapped lead wiring detection capability | US164872 | 1998-10-01 | US6072674A | 2000-06-06 | Lynn Stewart Johnson |
| Problems associated with delta motors being subjected to increased torques and overcurrent conditions resulting from inaccurate swapped wiring configurations in a delta motor system are eliminated in a motor controller that automatically inhibits operation of the delta motor when it detects that the fault contactor connections and the motor controller connections to a delta motor have been swapped or reversed. | ||||||
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