Patents
Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726)
01/2014
01/03/2014WO2012172486A3 Alternator with voltage regulation
01/02/2014US20140003103 Multi-level inverter apparatus and methods using variable overcurrent response
01/02/2014US20140002939 Driver circuit for an electric vehicle and a diagnostic method for determining when first and second voltage drivers are shorted to a high voltage
01/02/2014DE102013212096A1 Fahrzeugsystem zum auswerten eines spannungswandlers Vehicle system to evaluate a voltage converter
01/02/2014DE102012224349A1 Beleuchtungsanlage mit einer Schnittstelle aufweisend ein Netzgerät und mindestens ein Lichtquellenmodul Lighting system having an interface comprising a power supply and at least one light source module
01/02/2014DE102012211393A1 Batterie und Kraftfahrzeug Battery and motor vehicle
01/02/2014DE102012211092A1 Battery system for vehicle, has comparator for generating alarm signal in response to comparison between battery module instantaneous voltage and predicted battery module voltage, where comparison is based on battery module parameters
01/02/2014DE102012211088A1 Batteriesystem und Kraftfahrzeug mit Batteriesystem Battery system and motor vehicle battery system
01/02/2014DE102012211086A1 Safety electronics unit for battery module of lithium ion battery system of e.g. electric car, has comparator producing alarm signal depending on comparison of voltage threshold value with battery module voltage lying close at module
01/02/2014DE102012210862A1 Photovoltaic (PV) inverter has control unit that is coupled to ambient light sensor for interrupting power supply if ambient light sensor detects ambient light penetrated through opening in housing
01/01/2014EP2679129A1 Central vacuum cleaning system
01/01/2014EP2678926A2 Sub-module of a modular multi-stage converter
01/01/2014CN203377654U Lithium ion battery protection chip
01/01/2014CN203377590U Contact protective device for electrical contact instrument prepared by digital integrated circuit
01/01/2014CN203377589U Variable-frequency air conditioner and IPM module protection circuit thereof
01/01/2014CN203377588U Integrated protection device for high-voltage frequency-conversion phase-shifting transformer
01/01/2014CN203376991U Fire-hazard-preventing cable and protecting circuit preventing cable fire hazards
01/01/2014CN203376387U Over-voltage detection circuit and PFC circuit using the same
01/01/2014CN203376386U Over-current detection circuit and PFC circuit applying the same
01/01/2014CN103493321A Method for generating a fault signal
01/01/2014CN103490641A Small-power high-isolation AC-DC power module
01/01/2014CN103490602A Restraining circuit for VCE oscillating voltage in IGBT bridge arm short circuit
01/01/2014CN103490474A Power management circuit
01/01/2014CN103490451A Battery voltage balancing circuit
01/01/2014CN103490439A Control method using valve control system to carry out reversed recovery-stage protection on thyristor
01/01/2014CN103490394A Self-synchronizing positive sequence fault component current differential protection method of active power distribution network
01/01/2014CN103490393A Distribution line short circuit fault isolation system and method
01/01/2014CN103490392A Fault handling method of power distribution network comprising distributed power supplies and microgrids
01/01/2014CN103490391A PWM output short-circuit protection circuit
01/01/2014CN103490390A Battery management system and method with double protective functions
01/01/2014CN103490389A Battery protecting circuit and system
01/01/2014CN103490388A Over-voltage and under-voltage protection circuit
01/01/2014CN103490387A Single-stage PFC fly-back power source input under-voltage protection circuit
01/01/2014CN103490386A Over-temperature protection device for refrigerator compressor
01/01/2014CN103490385A Motor temperature protection device, motor, electric vehicle and control method
01/01/2014CN103490384A Multi-generator ship intermediate voltage electric power system protection method and device
01/01/2014CN103490383A Automatic direct-current power source output short circuit protection device
01/01/2014CN103490382A Grid connection safety device and control method for distributed photovoltaic power generation system
01/01/2014CN103490381A Configuration method of microgrid protection
01/01/2014CN103489572A Transformer with lightning protection function
01/01/2014CN103487778A Analog quantity correcting method and single-CPU (Central Processing Unit) low-pressure protector based on analog quantity correcting method
01/01/2014CN102377336B Switching power source apparatus
12/2013
12/31/2013US8619449 Voltage converter
12/31/2013US8618777 Method and device for regulation of a rotary electrical machine for a motor vehicle
12/27/2013WO2013190752A1 Overcurrent detecting apparatus, and intelligent power module using same
12/27/2013WO2013189242A1 Protective circuit for high frequency heating device and high frequency heating device having same
12/27/2013WO2013149745A3 An interlock system with self-diagnosis function, and a method for self-diagnosis of the interlock system
12/27/2013WO2013139335A3 Multi-location current feed in a consumer power circuit with line protection
12/27/2013WO2013026669A3 Protection of a three-phase motor in the field-weakening range
12/27/2013WO2013017779A3 Method of diagnosing a short circuit in an electrical assembly of a motor vehicle containing a capacitive component, and diagnostics device
12/27/2013WO2012123178A3 Safety charging device
12/26/2013US20130343103 Protection control system for a multilevel power conversion circuit
12/26/2013US20130342945 Method for monitoring a disconnection device, in particular a service plug or a service socket, in a battery system, and corresponding monitoring device
12/25/2013EP2677617A1 Power supply circuit for an on board energy source or storage device and particularly for super-capacitor storage unit
12/25/2013EP2676346A1 Method and arrangement for detecting an internal failure in h-bridge connected capacitor bank
12/25/2013EP2676146A1 Method and arrangement for an internal failure detection in a y-y connected capacitor bank
12/25/2013EP2675566A2 Regenerative braking safety system and method of use
12/25/2013CN203368391U AC generator voltage regulating apparatus
12/25/2013CN203368334U Intelligent quick-responsive three-phase variable-frequency electric control system suitable for electromagnetic stirrerS
12/25/2013CN203368331U Switch power supply with input under-voltage protection function
12/25/2013CN203368109U Detection circuit for lithium battery charger
12/25/2013CN203368107U Charger with overvoltage and overcurrent protection function
12/25/2013CN203368065U Storage battery based on photovoltaic power generation
12/25/2013CN203368057U Safety design power supply
12/25/2013CN203368013U Protection device for residual voltage of bus
12/25/2013CN203368012U DC contactor combined circuit for electric automobile
12/25/2013CN203368011U Circuit breaker trip coil automation protection device
12/25/2013CN203368010U An electric car storage battery protection circuit
12/25/2013CN203368009U Lithium cell automatic circulating current control and protecting circuit for energy storage power station
12/25/2013CN203368008U Solar fan circuit with function of charge and discharge protection
12/25/2013CN203368007U Automatic battery charge power-off protection device
12/25/2013CN203368006U Safe lithium battery pack
12/25/2013CN203368005U Capacitor state indicator
12/25/2013CN203368004U 电源保护电路和开关电源 Power protection circuitry and switching power supply
12/25/2013CN203368003U Dual protection device for Boost circuit
12/25/2013CN203368002U Three-phase motor protector
12/25/2013CN203368001U Circuit break protection circuit and circuit break protection device
12/25/2013CN203368000U A motor three-phase circuit protector
12/25/2013CN203367999U Motor temperature protection device
12/25/2013CN203367998U Motor protection device of submersible sewage pump
12/25/2013CN203367997U Intelligent motor protector
12/25/2013CN203367996U Automatic protective controller for motor
12/25/2013CN203367995U Protective device for clockwise and counterclockwise rotation of motor
12/25/2013CN203367994U Single-phase speed-regulation motor protection circuit, single-phase speed-regulation motor and blower fan coil pipe
12/25/2013CN203367993U Motor temperature protection device
12/25/2013CN203367992U Motor temperature protection device
12/25/2013CN203367991U Motor temperature protection device
12/25/2013CN203367990U Motor forward and reverse rotation protection device
12/25/2013CN203367989U Cleanliness-control starting motor system
12/25/2013CN203367988U Cleanliness control starting motor
12/25/2013CN203367987U Motor phase sequence protection device for special vehicles
12/25/2013CN203367986U Motor dual-protection automatic control device
12/25/2013CN203367985U Motor dual protection belt alarm automation control device
12/25/2013CN203367984U Generator protection system
12/25/2013CN203367983U Distributed generation grid-connected detection protective system
12/25/2013CN203367982U A series battery pack electrode fracture protection circuit based on discrete elements
12/25/2013CN203366968U Stereoscopic rolling iron core intelligent transformer
12/25/2013CN203354866U Multifunctional efficient energy-saving charging type massage belt
12/25/2013CN103477521A Method and protective device for recognising a symmetrical short-circuit in a multi-phase electrical power supply network
12/25/2013CN103475238A Voltage conversion circuit
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