ClassID:

216707

H02H3/247 - 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 responsive to undervoltage or no-voltage having timing means

Recent Application in this class:
#1
20260138459
2026-05-21

STOP SYSTEM FOR A HIGH POWER SYSTEM

#2
20240345141
2024-10-17

MONITORING ASSEMBLY AND SYSTEM HAVING A MONITORING ASSEMBLY

#3
20240256290
2024-08-01

DYNAMIC TIMING FOR SHUTDOWN INCLUDING ASYNCHRONOUS DYNAMIC RANDOM ACCESS MEMORY REFRESH (ADR) DUE TO AC UNDERVOLTAGE

#4
20220393442
2022-12-08

GROUNDING DEVICE FOR ELECTRIC FENCE

#5
20220357956
2022-11-10

Dynamic timing for shutdown including asynchronous dynamic random access memory refresh (ADR) due to AC undervoltage

#6
20220109297
2022-04-07

SUPPLY SYSTEM FOR SUPPLYING ELECTRICAL VOLTAGE AND METHOD FOR OPERATING A SUPPLY SYSTEM

#7
20220077674
2022-03-10

Undervoltage protection and control circuit for electronic switches

#8
20210231714
2021-07-29

System for detecting a drop in voltage of an AC power supply

#9
20210175811
2021-06-10

Dynamic mult-functional power controller

#10
20210099074
2021-04-01

Brown-out protection circuit for a switching converter and method for controlling a switching converter

#11
20200201413
2020-06-25

Fine resolution on-chip voltage simulation to prevent under voltage conditions

#12
20200112172
2020-04-09

Reactive power compensation device and method for controlling the same

#13
20190094312
2019-03-28

Power supply circuit and sound equipment

#14
20190052148
2019-02-14

Hardware control for prevention of dangerous restart in a power tool

#15
20190052077
2019-02-14

Hardware control for prevention of dangerous restart in a power tool

#16
20180321727
2018-11-08

Method and device for controlling operation of the power supply of a processing unit by making a periodic voltage comparison

#17
20180090924
2018-03-29

Power switch device

#18
20180088651
2018-03-29

Line-voltage detection method, power controller and power supply with brown-out protection and brown-in mechanism

#19
20180034261
2018-02-01

Resonant converter and driving method thereof

#20
20170338812
2017-11-23

Delay-time correction circuit, semiconductor-device drive circuit, and semiconductor device

#21
20170025892
2017-01-26

Smart power node

#22
20160172989
2016-06-16

Resonant converter and driving method thereof

#23
20160172958
2016-06-16

Modulation mode control circuit, switch control circuit including the modulation mode control circuit and power supply device including the switch control circuit

#24
20160172841
2016-06-16

Protection mode control circuit, switch control circuit including the protection mode control circuit and power supply device including the switch control circuit

#25
20160062389
2016-03-03

Control device and reset system utilizing the same

#26
20150288250
2015-10-08

Protective redundant subsystem for power tools

#27
20150248920
2015-09-03

Storage apparatus, image forming apparatus, abnormality detecting method for instantaneous power failure of hard disk, and abnormality recovery method thereof

#28
20150236499
2015-08-20

Safety control method and device for system with precharging circuit, and system thereof

#29
20150214725
2015-07-30

Power fault detection in transceivers

#30
20150092311
2015-04-02

METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR PROTECTION OF DIRECT CURRENT BUILDING ELECTRICAL SYSTEMS

#31
20130242445
2013-09-19

Service voltage load protection in an electric utility meter

#32
20130123997
2013-05-16

Smart meters, and systems and method for electrical power reconnection

#33
20130107401
2013-05-02

Time delay with control voltage sensing

#34
20120150524
2012-06-14

Fault-ride-through method, converter and power generating unit for a wind turbine

#35
20120091914
2012-04-19

Fault tolerant ion source power system

#36
20120063043
2012-03-15

Active current surge limiters with inrush current anticipation

#37
20120063042
2012-03-15

Active current surge limiters with watchdog circuit

#38
20120032663
2012-02-09

REDUCTION OF INRUSH CURRENT DUE TO VOLTAGE SAGS WITH TIMING FOR INPUT POWER VOLTAGE RECONNECTION

#39
20120032662
2012-02-09

Reduction of inrush current due to voltage sags by an isolating current limiter

#40
20120032653
2012-02-09

Reduction of inrush current due to voltage sags by impedance removal timing

#41
20110313587
2011-12-22

Integrated Wireless Power Control Device

#42
20110313583
2011-12-22

Integrated Wireless Power Control Device

#43
20110182398
2011-07-28

Motor driving device having power failure detection function

#44
20110058288
2011-03-10

Protective redundant subsystem for power tools

#45
20110056715
2011-03-10

Redundant overspeed protection for power tools

#46
20080247106
2008-10-09

Reduction of inrush current due to voltage sags

#47
20080204954
2008-08-28

Method and apparatus to evaluate notches in an electrical power system

#48
20060120007
2006-06-08

Apparatus for controlling interconnect switch

#49
20050024804
2005-02-03

Control circuit for frequency converter