ClassID:

216668

H02H3/023 - CPC Classification

Classification description:

Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection; Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order by short-circuiting

Recent Application in this class:
#1
20260074515
2026-03-12

EMP PROTECTION SYSTEM

#2
20260051727
2026-02-19

OVERVOLTAGE PROTECTOR WITH INTEGRATED FAILURE PROTECTION

#3
20250364798
2025-11-27

Pulse Width Modulated Fault Managed Power Systems

#4
20250300445
2025-09-25

ELECTROMAGNETIC COIL-BASED RAPID FAULT NEUTRALIZATION APPARATUS AND METHOD FOR ARC FAULT MANAGEMENT SYSTEMS

#5
20250253648
2025-08-07

FAULT CURRENT LIMITING SOLID-STATE SWITCHING DEVICE

#6
20250244782
2025-07-31

Voltage detection circuit and voltage detection system

#7
20250112453
2025-04-03

METHOD FOR CONTROLLING AN INVERTER COMPRISING SELECTING A SAFETY MODE

#8
20250112449
2025-04-03

ELECTROMAGNETIC COIL-BASED RAPID FAULT NEUTRALIZATION APPARATUS AND METHOD FOR ARC FAULT MANAGEMENT SYSTEMS

#9
20250105618
2025-03-27

OVERVOLTAGE PROTECTION DEVICE MODULES

#10
20250062609
2025-02-20

Voltage Limiting Device for Constant Current Circuits

#11
20250038513
2025-01-30

OVERVOLTAGE/CURRENT DETECTION AND PROTECTION IN A WIRELESS POWER SYSTEM

#12
20250030235
2025-01-23

ELECTRICAL POWER DISTRIBUTION SYSTEMS WITH A BYPASS UNIT THAT COUPLES TO A LOAD AND ELECTRICALLY ENGAGES ONE OF TWO ALTERNATE UNITS FOR POWERING THE LOAD AND RELATED METHODS

#13
20240404766
2024-12-05

CIRCUIT BREAKER AND METHOD

#14
20240395480
2024-11-28

CIRCUIT BREAKER AND METHOD

#15
20240333034
2024-10-03

SYSTEM AND METHOD FOR PROTECTING A WIRELESS POWER TRANSFER SYSTEM

#16
20240275264
2024-08-15

CIRCUIT ARRANGEMENT AND ELECTRICAL SYSTEM

#17
20240213559
2024-06-27

POWER SUPPLY DEVICE

#18
20240097430
2024-03-21

Overvoltage protection device modules

#19
20240039502
2024-02-01

Noise filter

#20
20230253776
2023-08-10

METHODS OF CONTROLLING AN ELECTRICAL SYSTEM TO EXTINGUISH AN ELECTRIC ARC, AND ELECTRICAL SYSTEMS

#21
20230198249
2023-06-22

CIRCUIT BREAKER WITH PRE-CHARGING AND CURRENT LIMITING FUNCTIONS, METHOD OF OPERATING SAME, POWER SUPPLY CIRCUIT AND AIRCRAFT

#22
20230155370
2023-05-18

Electrical power distribution systems with a bypass unit that couples to a load and electrically engages one of two alternate units for powering the load and related methods

#23
20230126872
2023-04-27

Short circuit detection apparatus

#24
20220393442
2022-12-08

GROUNDING DEVICE FOR ELECTRIC FENCE

#25
20220337045
2022-10-20

METHODS OF CONTROLLING AN ELECTRICAL SYSTEM TO EXTINGUISH AN ELECTRIC ARC, AND ELECTRICAL SYSTEMS

#26
20220187167
2022-06-16

Method for diagnosing exhaust gas sensors

#27
20220166204
2022-05-26

Output module of industrial control apparatus

#28
20220045672
2022-02-10

Safe electronic switch

#29
20220006375
2022-01-06

Electrical AC/DC converter arrangement with an AC circuit breaker, and a method for disconnecting an AC/DC converter arrangement

#30
20210223843
2021-07-22

Device, cabinet, and method for preventing power outage of entire cabinet

#31
20210013147
2021-01-14

Electronic device with short circuit protection element, fabrication method and design method

#32
20200412123
2020-12-31

Electrical power distribution systems with a bypass unit that couples to a load and electrically engages one of two alternate units for powering the load and related methods

#33
20200326365
2020-10-15

Arc fault detection unit

#34
20200287418
2020-09-10

System and method for protecting a wireless power transfer system

#35
20200177086
2020-06-04

Primary-pulsed switching power supply

#36
20200135420
2020-04-30

Direct current hybrid circuit breaker with reverse biased voltage source

#37
20200119539
2020-04-16

Vehicle power supply circuit

#38
20200036050
2020-01-30

Battery pack charge/discharge control device that suppress heat generation when internal short circuit occurs in a secondary battery

#39
20190393693
2019-12-26

Protection circuits with negative gate swing capability

#40
20190386576
2019-12-19

Safety design for DC link capacitors

#41
20190355633
2019-11-21

Power semiconductor device with active short circuit failure mode

#42
20190326217
2019-10-24

Electronic device with short circuit protection element, fabrication method and design method

#43
20190206639
2019-07-04

Circuit breaker

#44
20190206638
2019-07-04

Circuit breaker

#45
20190199087
2019-06-27

Short-circuit protection apparatus and method

#46
20190173275
2019-06-06

Voltage transformer

#47
20190165560
2019-05-30

Method for generating a trip current for triggering an electrical protection element

#48
20190128942
2019-05-02

Method and apparatus for measuring prospective short circuit current

#49
20180351015
2018-12-06

Protective circuit for a photovoltaic (PV) module, method for operating the protective circuit, and photovoltaic (PV) system having such a protective circuit

#50
20180175729
2018-06-21

Direct current voltage conversion circuit and liquid crystal display device

#51
20180145498
2018-05-24

System and method for protecting a solid-state power controller

#52
20180026570
2018-01-25

Solid state switch system

#53
20180026439
2018-01-25

Safety protection circuit

#54
20180026434
2018-01-25

Excitation system

#55
20170317615
2017-11-02

Fault shutdown control of an electric machine in a vehicle or other DC-powered torque system

#56
20170285713
2017-10-05

Intrinsically safe power conditioning circuit

#57
20170222479
2017-08-03

System and method for protecting a wireless power transfer system

#58
20170201085
2017-07-13

SMART OUTPUT PROTECTOR

#59
20170155214
2017-06-01

Method of and device for protecting USB type-C interface chip when CC pins thereof being at high voltage

#60
20170063161
2017-03-02

Contactless power transfer system and power transmission device

#61
20170047728
2017-02-16

Control strategy of a dual lane fault tolerant permanent magnet motor to reduce drag torque under fault condition

#62
20160329824
2016-11-10

Power conversion device with overvoltage suppression

#63
20160276822
2016-09-22

Short-circuiting device of an electrical installation and system for extinguishing an electrical arc that may appear in such an installation

#64
20160226256
2016-08-04

Circuit arrangement for a photovoltaic inverter for break relief using short-circuit switches, and uses of the circuit arrangement

#65
20160137079
2016-05-19

EVSE handle with automatic thermal shut down by NTC to ground

#66
20160134100
2016-05-12

Upstream parallel arc fault outlet protection method

#67
20160087431
2016-03-24

Power supply with surge voltage protection

#68
20150372483
2015-12-24

Device for connecting to a power network and method for protecting such a device

#69
20150372476
2015-12-24

Power supply for isolated bus communication

#70
20150288250
2015-10-08

Protective redundant subsystem for power tools

#71
20150162738
2015-06-11

High-power semiconductor module

#72
20150092304
2015-04-02

Device and method for protection from an electric arc

#73
20140375144
2014-12-25

Safety shut-off device and method of use

#74
20140139962
2014-05-22

Circuit arrangement having an overload protection for galvanic isolation units

#75
20140071574
2014-03-13

Electrical apparatus for the short-circuit protection of a three-phase load in a three-phase system

#76
20130169199
2013-07-04

Method for determining rotational speed of an electric motor in a power tool

#77
20130021708
2013-01-24

Hybrid circuit breaker

#78
20120261996
2012-10-18

Photovoltaic system with overvoltage protection

#79
20120243129
2012-09-27

SHORTING PROTECTION FOR SYSTEMS HAVING ELECTRIC MACHINES

#80
20120194003
2012-08-02

BYPASS AND PROTECTION CIRCUIT FOR A SOLAR MODULE AND METHOD OF CONTROLLING A SOLAR MODULE

#81
20120127619
2012-05-24

Input power port protection component

#82
20120044600
2012-02-23

Methods, systems, and apparatus for detecting arc flash events using current and voltage

#83
20120026633
2012-02-02

Decreasing voltage detection with control signaling

#84
20110058288
2011-03-10

Protective redundant subsystem for power tools

#85
20110056715
2011-03-10

Redundant overspeed protection for power tools

#86
20100296207
2010-11-25

Short-circuit limiting device in a low-voltage installation

#87
20100214724
2010-08-26

Power switch for preventing accidental arcs

#88
20100188785
2010-07-29

Device for monitoring and protecting the power supply of electrical equipment and method for implementing said device

#89
20100123986
2010-05-20

Short circuit limitation device in a low voltage system

#90
20100053830
2010-03-04

Method and apparatus for mitigation of dynamic overvoltage

#91
20090251838
2009-10-08

Safety device for a semiconductor switch

#92
20090213509
2009-08-27

System and method for mitigating an electrical arc fault

#93
20090128058
2009-05-21

Overload Protection Circuit

#94
20090021874
2009-01-22

Method of providing a secondary means of overload protection and leakage current protection in applications using solid state power controllers

#95
20080198523
2008-08-21

Protective circuit device for a solar module

#96
20080144248
2008-06-19

Network interface with transient protection apparatus for multiple ground planes

#97
20080144241
2008-06-19

Active clamp protection device

#98
20070253133
2007-11-01

Motor starter circuit

#99
20070216351
2007-09-20

Rechargeable battery device having a protection circuit for protecting from overcharge and overdischarge

#100
20070188148
2007-08-16

Method for controlling battery pack

#101
20070159745
2007-07-12

Circuit element and method for protecting a load circuit

#102
20070115599
2007-05-24

Fan system and method for protecting the same

#103
20070090780
2007-04-26

Series motor and method of controlling the same

#104
20060209482
2006-09-21

Measure for increasing the short-circuit resistance of a device by introducing parallel current paths

#105
20060092584
2006-05-04

Alternator and starter tester protection apparatus and method

#106
20050201030
2005-09-15

Protection circuit for dual voltage electrical distribution system

#107
20050152078
2005-07-14

System for eliminating arcing faults and power distribution system employing the same

#108
20050146824
2005-07-07

Active Safety Circuit with Loads Protected by Solid State Relays

#109
17644962
2024-04-02

Surge protection device for complex transients

#110
17073624
2021-12-07

Digital device using three states

#111
16535082
2020-09-22

Power conversion apparatus and short circuit protection circuit and method of capacitor thereof

#112
16282270
2022-02-01

Surge protection device for complex transients