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| Number | Title | Issue Date |
| 8189313 | Fault detection and handling for current sources A current source driving an LED is monitored for a fault condition such as an open circuit or a short circuit. The current source may be disabled and/or a common power source may be disabled in response to the type of fault condition. A test current may be applied t... | 05/29/2012 |
| 8184418 | Motor vehicle control device for regulating the pressure of the volumetric flow of a motor vehicle hydraulic apparatus and associated pressure regulation method A motor vehicle control device with a digital control loop has an actuator of an electrical actuator device in order to regulate the pressure of the volumetric flow of a motor vehicle hydraulic apparatus. A current limiting unit is provided in the forward path of th... | 05/22/2012 |
| 8179650 | Power supply apparatus A power supply apparatus includes: a plurality of batteries; a changeover portion switching the connection between the plurality of batteries; a short-circuit battery detection portion, if an internal short-circuit is produced in any of the plurality of batteries, d... | 05/15/2012 |
| 8169762 | Relay with current transformer Current transformer relays having dual functions as current transformers and electromechanical switches are described. The current transformer relay includes a relay coil and a conducting loop concentric with the relay coil. Additional functions are thus provided in... | 05/01/2012 |
| 8169763 | Transient blocking unit having an enhancement mode device in the primary current path A transient blocking unit (TBU) is a circuit having series-connected transistors that normally conduct current, but automatically switch to a high-impedance current blocking state in response to an over-current condition. Here enhancement mode devices are used in th... | 05/01/2012 |
| 8164873 | Integrator and circuit-breaker having an integrator An integrator and a circuit-breaker are disclosed, the integrator being in the form of a passive symmetrical low-pass filter having an integration capacitor. In order to make it possible to temporally integrate an electrical signal in an improved manner, it is propo... | 04/24/2012 |
| 8159799 | Protective device against abnormality for positive and negative dual power supply circuit This invention mainly involves in the consumer electronic product fields, especially in the protective devices against abnormality for positive and negative power circuits of TV and audio technology field. In one embodiment, in the last stage output port load (RL) c... | 04/17/2012 |
| 8154837 | Circuit arrangement and method for monitoring wheel speed sensors in a motor vehicle control device Circuit arrangement (2,3,4,5) in an electronic control device which is connected to at least one wheel speed sensor channel (6,7,8,9) transmitting wheel speed information, in particular in the form of a current signal, the circuit arrangement (2,3,4... | 04/10/2012 |
| 8144443 | Discharging control apparatus of switching device for inverter Disclosed is a discharging control apparatus of a switching device for an inverter capable of reducing a spike voltage when the switching device is turned off and reducing a turn-off time of the switching device, the apparatus comprising, a fast discharge circuit se... | 03/27/2012 |
| 8116053 | Isolating device for a power semiconductor and method for its operation, power module and system installation An isolating device for a power semiconductor comprising n power terminals for a power grid comprises n module terminals, n grid terminals, n connecting lines which connect the module terminals and grid terminals and have overcurrent fuses, and a tripping controller... | 02/14/2012 |
| 8111493 | Current limit detector Devices, such as mobile devices, may be exposed to short circuit and output overload events. To protect against such events, mobile devices typically include current limit circuits. Some current limit circuits may involve user programmable function. User programmabl... | 02/07/2012 |
| 8094424 | Operation detection devices having a sensor positioned to detect a transition event from an overcurrent protection component and related methods An operation detection device for an overcurrent protection component is provided. The overcurrent protection component has a closed state and an open state and outputs a transition event responsive to a transition between the closed state and the open state. The op... | 01/10/2012 |
| 8094425 | Combination current sensor and relay A protection device for monitoring current in a power cable to an electrical device and for controlling a remotely located starter for the electrical device in response to a system controller. The device includes a transformer magnetically linked with the power cabl... | 01/10/2012 |
| 8081410 | Overcurrent protection circuit Designs of an overcurrent protection circuit Techniques are disclosed. According to one aspect of the present invention, an overcurrent protection having continuous protection thresholds is provided to efficiently protect a battery from discharging overcurrent espec... | 12/20/2011 |
| 8072725 | Connection unit and vehicle incorporating the same A connection unit includes a first relay connected between a first electrode of a first battery and a first power feed line towards a vehicle load, a second relay connected between a second electrode of the first battery and a second power feed line towards the vehi... | 12/06/2011 |
| 8068322 | Electronic circuit breaker apparatus and systems Electronic circuit breakers and systems for isolating a load from a power-supply unit are provided. One electronic circuit breaker includes a current sensor, a switching element coupled to the current sensor, and a switch controller coupled to the current sensor and... | 11/29/2011 |
| 8064180 | Input-voltage-rate-of-change-dependent current-limit set point for hot-swap controllers Certain example embodiments disclosed herein include an adaptive current limiter comprising a variable reference voltage generator which is coupled to a power source via two input nodes and which develops a voltage step with exponential decay in response to, for exa... | 11/22/2011 |
| 8054602 | Power supply controller A comparator receives, on its second input terminal, a third anomaly threshold voltage from a threshold voltage generator, and outputs a low-level breaking indication signal to a control logic portion when a terminal voltage falls below the third anomaly threshold v... | 11/08/2011 |
| 8054603 | Power converter, short detection circuit thereof, and method for detecting short A short detection circuit, for detecting an output node corresponding to an output voltage converted from an input voltage of a power converter, includes a first current source, a charging/discharging unit, a comparator, and a logic control unit. The charging/discha... | 11/08/2011 |
| 8045309 | Magnetic energy recovery switch having protective circuit In order to protect Magnetic Energy Recovery Switch (MERS) against an overvoltage and an overcurrent a voltage detection unit is provided for detecting the capacitor voltage of the MERS and control means is provided to control so as to turn ON the switch of the disc... | 10/25/2011 |
| 8040649 | Overcurrent protection apparatus and electronic apparatus An overcurrent protection apparatus includes two overcurrent protection circuits. The first overcurrent protection circuit compares an electric potential on the downstream side of a first resistance element with a reference potential produced by a second resistance ... | 10/18/2011 |
| 8040650 | Excess-current protection circuit and power supply An excess-current protection circuit includes an outer input terminal, an outer output terminal, a driver transistor connected between the input terminal and the output terminal to control an excess current, an excess-current control circuit, and an excess-current d... | 10/18/2011 |
| 8031452 | Single-supply single-ended high voltage peak detector A device for current detection is disclosed and includes a protection circuit having a current input provided via a positive input and a negative input arranged in parallel to the positive input, a pair of diodes communicatively coupling the positive input to the ne... | 10/04/2011 |
| 8031451 | Solid state power control module with removal detector A solid state power control module contains non-volatile memory. A switch for opening is provided to break a supply of power to a component. The switch is operable to trip (open) when an undesirable condition is detected, and further to be opened upon receiving a co... | 10/04/2011 |
| 8027132 | Failure detection device for power circuit including switching element A failure detection device detects the voltage across the main electrodes of an IGBT via a diode. The failure detection device determines occurrence of short-circuit failure in the IGBT when the anode voltage of the diode is lower than a first predetermined referenc... | 09/27/2011 |
| 8027133 | Power plate for driving at least one robot A power plate for driving a robot is provided herein. The power plate is capable of driving the robot in a stable manner. This stable drive of the robot is achieved by preventing a whole system paralysis phenomenon, which is caused by a local short-circuit occurring... | 09/27/2011 |
| 8027134 | Apparatus and method for scalable power distribution According to one aspect of the invention, a plug-in module is provided for installation in a power distribution assembly. In one embodiment, the plug-in module includes a housing, an electrical isolation and overcurrent protection device located in the housing and a... | 09/27/2011 |
| 8014115 | Circuit breaker having separate restrained and unrestrained zone selective interlock setting capability A circuit breaker system and method having zone selective interlock features with separate restrained and unrestrained setting capability is provided. The system and method include the transmission of a selective interlock signal from a downstream circuit breaker to... | 09/06/2011 |
| 8000074 | Electrical power distribution system An electrical power distribution system for connecting an electrical device to a source of electrical power and disconnecting the electrical device therefrom. The system includes a PCD tag associated with the electrical device, and a PCD reader associated with a rec... | 08/16/2011 |
| 7995319 | Semiconductor device with overcurrent protection circuit A semiconductor device 1 includes an output MOS transistor M2, a sense MOS transistor M3, a voltage conversion circuit 20 that converts a sense current of the sense MOS transistor M3 into a sense voltage, and control MOS transistor... | 08/09/2011 |
| 7983013 | Operating and controlling insulated gate bipolar transistors in high speed failure mode situations A circuit and method to provide dynamic fault protection to transistors are disclosed. The fault protection may be particularly suited for protecting insulated gate bipolar transistors (IGBTs). ... | 07/19/2011 |
| 7978453 | Low side driver with short to battery protection A driver circuit includes a driver module having a first transistor for receiving a driver voltage signal. In response to the driver voltage signal, the first transistor conducts current through an electronic device. A protection module includes a second transistor ... | 07/12/2011 |
| 7978452 | Automotive overcurrent protection Overcurrent is prevented in an automotive vehicle based on sensing at least one operating condition. An overcurrent threshold is determined based on characteristics of the load and on the sensed condition. If the sensed flow of current exceeds the determined overcur... | 07/12/2011 |
| 7969702 | Intelligent power supply and cable system This invention includes a power supply having a plurality of cables, each corresponding to a unique electronic host device. The cable includes a memory device having predetermined power characteristics associated with an electronic host device. The cable further inc... | 06/28/2011 |
| 7957114 | Circuit breaker and method for triggering a circuit breaker, particularly a low voltage circuit breaker In one embodiment of the present invention, a circuit breaker and a method for triggering a circuit breaker are disclosed, particularly a low voltage circuit breaker, including an electronic overload trigger, particularly for the protection against a short circuit, ... | 06/07/2011 |
| 7944663 | Over-current protection circuit An over-current protection circuit for use with a constant voltage circuit that converts an input voltage to a predetermined output voltage and that outputs the predetermined output voltage. The over-current protection circuit includes an output current detecting ci... | 05/17/2011 |
| 7944664 | Safety device for a semiconductor switch A safety device for a semiconductor switch controlling a secondary line provided with a fuse on the input side of the switch device that includes component to create a short circuit in the secondary line, so as to cut off the fuse, and means of activating this compo... | 05/17/2011 |
| 7940504 | Apparatus and method for scalable power distribution According to one aspect of the invention, a plug-in module is provided for installing in a power distribution assembly. In one embodiment, the plug-in module may include an overcurrent protection device, a power cable, which may include a first end coupled to the ov... | 05/10/2011 |
| 7933103 | Overcurrent detection device Disclosed is an overcurrent detection device for detecting an overcurrent in a load circuit which is arranged to control the driving and the stopping of a load 1 by a semiconductor switch (FET1) provided between a battery VB and the load 1. An a... | 04/26/2011 |
| 7933105 | Switching element driving device and switching element driving method A switching element driving device has a first transistor that decreases the gate voltage of a power element at a faster rate than during a normal turn-off, and a second transistor that decreases the gate voltage of the power element at a slower rate than during a n... | 04/26/2011 |
