H02H9/047 - CPC Classification Index

ClassID:

216866 ⎘

H02H9/047 - CPC Classification

Classification description:

Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere Free-wheeling circuits

Recent Application in this class:

20220224225

2022-07-14

Converter and on-board charger

20220068535

2022-03-03

Magnet control units

20210091763

2021-03-25

Load control device having multiple terminals and a clamp circuit connected therebetween

20190348858

2019-11-14

Voltage regulator of a generator

20190028099

2019-01-24

Solenoid fast shut-off circuit network

20180375325

2018-12-27

Clamping inductive flyback voltage to reduce power dissipation

20180053589

2018-02-22

Solenoid coil discharging circuit

20160241013

2016-08-18

Apparatus and method for reverse battery protection

20160048149

2016-02-18

Current limiter

#10

20150002975

2015-01-01

Solid state circuit-breaker switch devices

#11

20140111895

2014-04-24

Surge protection circuit

#12

20120292998

2012-11-22

Drive circuit for electromagnetic manipulation mechanism

#13

20120287547

2012-11-15

Snubber circuit

#14

20110188158

2011-08-04

Protection circuit for a drive circuit of a permanent magnet motor and corresponding system

#15

20100208401

2010-08-19

INDUCTIVE LOAD DRIVING CIRCUIT

#16

20090316322

2009-12-24

Meter having load control unit

#17

20090296290

2009-12-03

LENZ ROUTE

#18

20090295321

2009-12-03

Motor drive circuit

#19

20090284879

2009-11-19

System and method for quickly discharging a DC relay

#20

20090262469

2009-10-22

Circuit for protecting a DC network with DC loads against overvoltage

#21

20090219659

2009-09-03

Motor control circuit with malfunction monitoring

#22

20090086399

2009-04-02

Snubber circuit

#23

20080246452

2008-10-09

Device and method for charging an electrical energy storage device

#24

20080130178

2008-06-05

Load dump protection for power FET device

#25

20080094763

2008-04-24

Electrical apparatus with current dampening device

#26

20080008459

2008-01-10

Motor control system for the PWM control of an electric motor

#27

20070159134

2007-07-12

Counter electromotive force prevention unit

#28

20070103988

2007-05-10

Circuit arrangement and method for controlling an inductive load

#29

20060255786

2006-11-16

Method and device for switching off an inductive load in a failsafe manner

#30

20060232907

2006-10-19

Wide input voltage range relay drive circuit for universal defrost timer

#31

20060227475

2006-10-12

Direct current motor control circuit and wiper system using said circuit

#32

20060187605

2006-08-24

Protection circuit for intrinsically safe electro-magnetic actuators and a protection circuit for intrinsically safe energy supply systems

#33

20060181156

2006-08-17

Protective circuit for intrinsically safe electro-magnetic actuators, and protective circuit for intrinsically safe energy supply systems

#34

20060176635

2006-08-10

Solid-state magnet control

#35

20060171087

2006-08-03

High-voltage protection device of coil driving device

#36

20060152877

2006-07-13

Transient suppression circuit

#37

20060098376

2006-05-11

Solenoid driving apparatus

#38

20060077613

2006-04-13

Safety switching device and method for failsafe shutdown of an electric load

#39

20060056118

2006-03-16

Limiting energy in wiring faults

#40

20060007628

2006-01-12

Device and method for triggering an inductor

#41

20050248890

2005-11-10

Apparatus for powering electric motors

#42

20050157444

2005-07-21

Circuit and method for controlling current flow through a solenoid

#43

20050047048

2005-03-03

Over-voltage protection coil control circuit