221 |
Single-Channel Safety Output |
US15152780 |
2016-05-12 |
US20160254112A1 |
2016-09-01 |
DIRK LORENZ; NOBERT MACHULETZ; RUDOLF PAPENBREER; THOMAS HELPENSTEIN |
A safety switching device for fail-safely switching on and off an electrical load, and to a system comprising at least two safety switching devices which interact in a fail-safe manner via a single-channel. The safety switching device comprises a fail-safe control unit, a first and a second electronic switching element connected with a first and a second output terminal; and at least one input terminal for receiving a first switching signal that causes a switching of said switching elements. Said first and second switching elements each comprise an output which provides depending on the first switching signal an output signal having a first or second potential. A third output terminal connects said safety switching device to a second safety switching device, providing a clocked signal depending on the first switching signal and being monitored by said control unit for performing a cross fault detection. |
222 |
CURRENT DRIVERS THAT UTILIZE SHORT CIRCUIT PROTECTION |
US14497062 |
2014-09-25 |
US20160094025A1 |
2016-03-31 |
Gregory H. Smith; Son T. Vo; Kenneth A. Seidner; Troy Cobb; Shamoon Sikora |
Embodiments described herein provide short circuit detection capabilities for current drivers. One embodiment includes a controller and a current driver. The current driver includes a power switch circuit that couples a supply rail to a high side of a load in response to receiving a drive signal. The current driver further includes a continuity circuit that couples the supply rail to the high side and indicates to the controller whether a first current flow to the high side exceeds a first threshold. The current driver further includes a current sense circuit that couples a low side of the load to ground and indicates to the controller whether a second current flow from the low side exceeds a second threshold. The controller identifies, based on the first current flow, the second current flow, and the drive signal, a plurality of short circuit conditions that may exist at the current driver. |
223 |
Anti-arcing circuit |
US13967600 |
2013-08-15 |
US09236729B2 |
2016-01-12 |
Chee Kiong Fong; Suet Fong Tin; David Richard Perchilk; Edward C. Giaimo, III; Michael Donovan Rulien; Perry Samuel Stultz |
Anti-arcing circuits are described herein that are configured to prevent or substantially mitigate arcing when a power adapter is connected/disconnected from a client device. The anti-arcing circuit restricts power supplied when a connection of a connector of a power adapter to the adapter interface is not fully established. The anti-arcing circuit is further configured to detect when a connection is made and remove the restriction to supply power for operations of the client device. In one approach, the anti-arcing circuit includes two different paths and components associated with a detection mode and operational mode respectively. In the detection mode, power supply is suppressed and a current pulse may be sent to determine if a connection is established. If current is detected, a switch is made to operational mode and power for normal device operations is supplied. |
224 |
Safe Photovoltaic System |
US14766516 |
2014-02-11 |
US20160006392A1 |
2016-01-07 |
Wolfgang Höft |
The invention provides a fault detection system in a photovoltaic system 1, which is able to identify a system state on the basis of a first and optionally a second measured data profile and is thus able to distinguish error states from the operating state of the system. |
225 |
Methods, devices, and mediums associated with power management of electrical devices |
US13362640 |
2012-01-31 |
US09219361B1 |
2015-12-22 |
David William Wine; Andrew Konstantaras |
An apparatus may comprise a first controller configured to identify a power requirement associated with an electrical device, and a transmitter configured to communicate the power requirement to a second controller. The second controller may be associated with an electrical circuit configured to provide power to a plurality of electrical devices including the electrical device. Additionally, the apparatus may comprise a receiver configured to receive a response from the second controller. The response may identify an available power associated with the electrical circuit, and the first controller may be configured to enable operation of the electrical device based, at least in part, on a comparison of the power requirement and the available power. |
226 |
ENERGY LOCKOUT IN RESPONSE TO A PLANAR CATASTROPHIC FAULT |
US14278520 |
2014-05-15 |
US20150333511A1 |
2015-11-19 |
Jamaica L. Barnette; Raymond M. Clemo; Douglas I. Evans; Brian C. Totten |
A computer planar includes an enable signal line for providing an enable signal to an external power supply, wherein the external power supply will not turn on unless the enable signal is active high. During normal operation, an auxiliary power source maintains an active high enable signal on the enable signal line, which includes a fuse. However, a fault protection circuit coupled to the enable signal line can pull down the enable signal line in response to a fault, such that the fuse is permanently opened. Once the fuse is open, the external power supply cannot be enabled and further damage to the computer planar is prevented. |
227 |
System and method to detect child presence using active MEMS sensors |
US13453830 |
2012-04-23 |
US09109319B2 |
2015-08-18 |
Jurgis Astrauskas |
The presence of a child within an enclosed space in an appliance, such as a washing machine, dishwasher or refrigerator, is detected using one or more MEMS sensors positioned to detect movement within the enclosed space through various measured characteristics. In preference, combinations of different types of MEMS sensors are utilized to detect the movement. Movement may be attributed to the presence of a child inside the enclosed space, rather than resulting from other influences, with increased reliability if the determination is made based upon such combinations of different characteristics. Safety processes may be initiated upon detecting the presence of the child. |
228 |
PREVENTING MOISTURE DAMAGE TO A DEVICE |
US13938484 |
2013-07-10 |
US20150016000A1 |
2015-01-15 |
Aaron J. Quirk; David A. Sakmar; Carlos L. Torres; Lin Sun; Rohith K. Ashok |
A device including a system for preventing moisture damage to the device includes a processor and a module operable on the processor for monitoring for a predetermined capacitance criterion on a surface of the device. The device is automatically powered off in response to detecting the predetermined capacitance criterion. |
229 |
CHARGING CIRCUIT AND METHOD FOR PREVENTING CHARGING POWER SUPPLY FROM REVERSELY CONNECTING |
US13968159 |
2013-08-15 |
US20140354215A1 |
2014-12-04 |
Zhiyong Xiang |
The invention discloses a charging circuit and a method for preventing charging power supply from reversely connecting in an electronic cigarette or electronic cigarette case. The charging circuit comprises a direct current input terminal, an unit for preventing charging power supply from reversely connecting, a charge management unit and a rechargeable battery. The unit is electrically connected to the direct current input terminal; the charge management unit is electrically connected to the unit and the rechargeable battery. The charging circuit and method according to these embodiments of the invention can effectively avoid the risk caused by the reverse connection of the charging power supply for the electronic cigarette or the electronic cigarette case; it also has the advantages such as low voltage drop and low power consumption. |
230 |
Safety detection system with integrated diagnostic functions |
US13890764 |
2013-05-09 |
US08902063B2 |
2014-12-02 |
Marc Auger; Mireille Roger |
The invention relates to a safety detection system comprising a detection chain formed by a number of interconnected safety detectors (D1, . . . D5). The detectors (D1, . . . D5) in the chain are also interconnected in order to form a diagnostic line in parallel with the safety chain. The first detector thus comprises means for generating diagnostic information comprising its surveillance state, and means for sending this diagnostic information, on the diagnostic line, to the second detector in the chain, which in turn enriches the diagnostic information. At the end of the chain, the last detector is connected to a diagnostic module (MD) intended to receive the diagnostic information, to interpret it, and to control the start-up of the application to be secured. |
231 |
METHOD AND SYSTEM FOR OPEN NEUTRAL PROTECTION CIRCUIT |
US13693169 |
2012-12-04 |
US20140153145A1 |
2014-06-05 |
Ronald W. Hughes |
An open neutral protection method and apparatus including a blocking diode arrangement to prevent connection of power in circuits when the power source has an open neutral. In particular, when more than one branch circuits are connected to a power supply with more than one hot power lines, blocking diodes prevent back feed currents from activating relays connecting the power source to the branch circuits when the power source has an open neutral. |
232 |
Circuit testing closer apparatus and method with in-rush current awareness |
US12091341 |
2006-10-03 |
US08681462B2 |
2014-03-25 |
Raymond P. O'Leary; Christopher R. Lettow; Alejandro Montenegro; John C. Opfer |
A circuit testing closer is capable of closing a power distribution circuit and interrupting the resulting current at the next current zero. Upon detecting a fault, the circuit testing closer is operable to open contacts to isolate the fault. Next, the circuit testing closer tests the faulted line to determine whether the fault has cleared. The circuit testing closer may generate a first test signal having a first polarity and a second test signal having a second polarity opposite the first polarity. Generation of the second test signal may be limited to occur when the first test signal indicates a fault. |
233 |
Safety System for Vehicles for Reducing the Danger of an Electric Shock from a Battery |
US13961119 |
2013-08-07 |
US20140042806A1 |
2014-02-13 |
Michael Gless |
A safety system for vehicles for reducing the danger of an electric shock from a battery is described, wherein the safety system is arranged on the outside of the vehicle and has an operator control area and a charging plug-in location with an operating plug. It is characteristic that the operating plug and the charging plug-in location are combined with one another outside the vehicle and are embodied in such a way that removing the operating plug causes the voltage of the vehicle to be disconnected. In addition, the disclosure relates to a motor vehicle which contains such a battery and to a method for reducing the danger of an electric shock from a battery, which method serves to implement the battery according to the disclosure. |
234 |
SAFETY DETECTION SYSTEM WITH INTEGRATED DIAGNOSTIC FUNCTIONS |
US13890764 |
2013-05-09 |
US20130314231A1 |
2013-11-28 |
Marc AUGER; Mireille Roger |
The invention relates to a safety detection system comprising a detection chain formed by a number of interconnected safety detectors (D1, . . . D5). The detectors (D1, . . . D5) in the chain are also interconnected in order to form a diagnostic line in parallel with the safety chain. The first detector thus comprises means for generating diagnostic information comprising its surveillance state, and means for sending this diagnostic information, on the diagnostic line, to the second detector in the chain, which in turn enriches the diagnostic information. At the end of the chain, the last detector is connected to a diagnostic module (MD) intended to receive the diagnostic information, to interpret it, and to control the start-up of the application to be secured. |
235 |
ELECTRICAL MEANS TO LIMIT CURRENT IN BATTERY OPERATED PATIENT-CONNECTED MEDICAL DEVICES |
US13984857 |
2012-02-07 |
US20130313917A1 |
2013-11-28 |
Dana Charles Finlayson; Andreas Richmond Knapp; Francis Kusti Makie |
A system (116, 120) for electrically limiting leakage current in a patient- connected medical device (100). The system (116, 120) includes a first set (116) of one or more switching devices (118) that selectively connect a first power output (124) of a 1-1 battery compartment (110) of the patient-connected medical device (100) with a first power input (126) of electronic components (102) of the patient-connected medical device (100) based on a first polarity of input voltage from the battery compartment (110). The system (116, 120) further includes a second set (120) of one or more switching devices (122) that selectively connect a second power output (128) of the battery compartment (110) of the patient-connected medical device(100)with a second power input (130) of the electronic components (102) based on a second polarity of the input voltage, wherein the first polarity is opposite the second polarity. |
236 |
ACTUATOR MODULE, SYSTEM FOR LOCKING- UNLOCKING A DOOR OF A HOUSEHOLD APPLIANCE AND RELATIVE OPERATING METHOD |
US13846407 |
2013-03-18 |
US20130293032A1 |
2013-11-07 |
Fabrizio Promutico |
An actuator module comprises an actuating unit comprising a solenoid which is capable, when excited, of generating an electromagnetic field, and a core movable due to the electromagnetic field generated by the solenoid with a first end and a second end so as to be able to assume a resting position and an operating position, and which is magnetic and/or able to be magnetized. The actuating unit can be controlled by activation signals and protection signals, the activation signals energizing the solenoid so as to generate a magnetic field such as to move and hold the movable core from a resting position to the operating position, and the protection signals exciting the solenoid so as to generate a magnetic field such as to return the movable core to and hold the moveable core in the resting position. The present invention concerns a locking-unlocking system and method for protecting the system. |
237 |
DC CHARGING STATION FOR A BATTERY OF AN ELECTRIC VEHICLE |
US13825959 |
2011-08-31 |
US20130249485A1 |
2013-09-26 |
Markus Böhm; Nicholas Demetris Cherouvim; Johannes Reinschke; Johnannes Starkl |
A DC voltage source, for example an AC/DC converter, has an output producing a controllable DC voltage for a DC charging station to charge the battery of an electric vehicle. A voltage balancing unit is connected between the output of the converter and the output terminal of the DC charging station. The voltage balancing unit has a controllable switch by which the connection between voltage source or converter and battery can be made or broken as desired. The switch is controlled as a function of the voltage on the input and output side of the voltage balancing unit to the effect that the switch breaks the connection before and while the battery is being connected to the DC output terminal, and makes a connection only when the voltage on the input side of the voltage balancing unit corresponds substantially to the voltage on the output side of the voltage balancing unit. |
238 |
Identifying a device with a universal power supply by reading a communication tag |
US13608015 |
2012-09-10 |
US08471415B1 |
2013-06-25 |
Paul Heninwolf |
Disclosed is a system and method for supplying power to devices from a receptacle with a universal pin configuration. In an example configuration, a plug reader and a controller are provided. The plug reader reads a communication tag of an electrical device plug, and receives data read from the plug reader from which it can identify an electrical capability of the electrical device, such voltage and/or frequency compatibility of the device. Based on the compatibility data, the controller determines whether a universal power supply is included in the device and causes power to be provided to the device. |
239 |
Electrical instrument having a protection circuit |
US12861883 |
2010-08-24 |
US08370666B2 |
2013-02-05 |
Wei Dong; Wu Chen; Huanrong Song; Chuanyang Lu |
A protection circuit suitable for electrical instruments includes a software detecting circuit, a logic AND circuit, a driver and control circuit for engine operating power components, and a hardware detecting circuit connected with the logic AND circuit. Both the software detecting circuit and the hardware detecting circuit monitor the state of an operating switch and provide signals to the logic AND circuit. Only when the state of the switch changes from opened to closed and both detecting circuits determine that this state is correct will the driver and control circuit signal the engine to operate. Furthermore, by connecting two or more power components in serial at the same time, the engine will not work by accident and the machine will not be out of control when any one of the power components is damaged. A circuit using capacitors of suitable specification can also be provided to isolate the controlling pin of a power component in the form of an SCR to thereby avoid failure and damage of the entire system. |
240 |
SYSTEM AND METHOD TO DETECT CHILD PRESENCE USING ACTIVE MEMS SENSORS |
US13453830 |
2012-04-23 |
US20120235514A1 |
2012-09-20 |
Jurgis Astrauskas |
The presence of a child within an enclosed space in an appliance, such as a washing machine, dishwasher or refrigerator, is detected using one or more MEMS sensors positioned to detect movement within the enclosed space through various measured characteristics. In preference, combinations of different types of MEMS sensors are utilized to detect the movement. Movement may be attributed to the presence of a child inside the enclosed space, rather than resulting from other influences, with increased reliability if the determination is made based upon such combinations of different characteristics. Safety processes may be initiated upon detecting the presence of the child. |