| 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) |
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| 03/11/1999 | WO1999012241A1 Overcurrent protection circuit with improved ptc trip endurance |
| 03/11/1999 | DE19839025A1 Procedure for detecting obstacles used with electric window-lifting device |
| 03/11/1999 | DE19739780A1 Drehstrommotor AC motor |
| 03/11/1999 | DE19739553A1 Vorladeschaltung für einen am Ausgang eines netzgeführten Stromrichters angeschlossenen Kondensator Pre-charge a capacitor connected to the output of a line-commutated converter |
| 03/11/1999 | DE19739551A1 Kurzschlußstrombegrenzung für eine Stromrichterschaltung mit einem kapazitiven Speicher Short-circuit current limiter for a power converter circuit with a capacitive storage |
| 03/10/1999 | EP0901210A2 Auto window switch and obstacle detect/protect with override |
| 03/10/1999 | CN2310412Y Phase loss protector for three-phase asynchronous motor |
| 03/09/1999 | US5880678 Warning device for monitoring rotation speed of prime mover |
| 03/09/1999 | US5880575 Charge-discharge control circuit, over-charge prevention circuit, and over-discharge prevention circuit |
| 03/09/1999 | US5880574 Control system for electric vehicle |
| 03/04/1999 | DE19736903A1 Converter with rectifier, inverter and intermediate circuits |
| 03/03/1999 | EP0899861A2 Power converter circuit |
| 03/03/1999 | EP0899789A1 Overvoltage protection element |
| 03/03/1999 | EP0777593B1 Windscreen wiper device |
| 03/03/1999 | CN2309656Y Lightning protector specially adapted for motor |
| 03/03/1999 | CN2309655Y Three-phase motor phase interruption protector |
| 03/03/1999 | CN1209683A Rectifier circuit |
| 03/03/1999 | CN1042383C Electric Motor with torque detecting circuit |
| 03/02/1999 | US5877604 Circuit for operating an electric motor |
| 03/02/1999 | US5875641 Contactor with solid state protection circuit for a vapor compression air conditioner |
| 02/25/1999 | WO1999009631A1 System interconnecting device and decentralized power supply equipped with the same and having instantaneous voltage drop preventing function |
| 02/25/1999 | DE19838144A1 Obstacle detection method when opening and closing electric car window |
| 02/25/1999 | DE19835093A1 Paper shredder with DC motor |
| 02/25/1999 | CA2267304A1 System interconnection device and distributed power supply device including the same having instantaneous voltage drop counter-measure function |
| 02/24/1999 | EP0897609A1 Method and device for braking an all-mains motor |
| 02/24/1999 | CN2309010Y Waterproof protecting underwater pump |
| 02/23/1999 | US5875414 Method and apparatus for protecting switching element of inverter from being overheated |
| 02/23/1999 | US5875088 Electrical switching apparatus employing interlocks for first and second trip functions |
| 02/18/1999 | WO1999007971A2 System and related methods for detecting and measuring the operational parameters of a garage door |
| 02/18/1999 | DE19735208A1 Free running switching power supply e.g. for video recorder |
| 02/18/1999 | DE19734912A1 Method for torque dependent decoupling of positioning drive |
| 02/17/1999 | EP0896757A1 Device including a thermally protected switching transistor |
| 02/17/1999 | CN2308195Y Open-phase protector |
| 02/17/1999 | CN2308194Y Voltage early warning type multifunction protector |
| 02/17/1999 | CN2308193Y 电动机保护器 Motor protection |
| 02/17/1999 | CN2308192Y Comprehensive device for protecting asynchronous motor when it broke down |
| 02/17/1999 | CN1208254A Semiconductor integrated circuit reducing undesired current |
| 02/16/1999 | US5872722 Apparatus and method for adjustment and coordination of circuit breaker trip curves through graphical manipulation |
| 02/16/1999 | US5872707 SVC converter with an extra phase leg to replace a failed phase leg |
| 02/16/1999 | US5872436 System for monitoring and controlling the opening and closing of electrically driven devices |
| 02/16/1999 | CA2106504C Conversion apparatus |
| 02/11/1999 | WO1999007054A1 Device and method for powering down a receiver, and electric apparatus equipped therewith |
| 02/10/1999 | EP0896411A2 Electrical actuator especially for actuating windows and doors, shutters, venetian blinds as well as sun blinds |
| 02/10/1999 | CN2307403Y Electric motor controlled frame |
| 02/10/1999 | CN2307389Y Protector for brushless dc fan |
| 02/09/1999 | US5870050 Electronic monitoring of the driving force of a drive mechanism |
| 02/09/1999 | US5869996 Semiconductor composite element, and method of detecting abnormal conditions in an inverter device having the element |
| 02/04/1999 | WO1999005763A1 Control circuit for a direct current motor |
| 02/04/1999 | WO1999005762A1 Circuit for controlling a motor with a device for recognising an overload |
| 02/04/1999 | WO1999005747A1 In situ short-circuit protection system and method for high-energy electrochemical cells |
| 02/04/1999 | WO1999005729A2 Bypass apparatus and method for series connected energy storage devices |
| 02/04/1999 | WO1999005537A2 In-situ fault detection apparatus and method for an encased energy storing device |
| 02/04/1999 | DE19756640A1 Potential separation transformer for measuring system |
| 02/04/1999 | DE19733533A1 Monitoring circuit for control of washing machine motor |
| 02/04/1999 | CA2297964A1 In-situ fault detection apparatus and method for an encased energy storing device |
| 02/03/1999 | EP0895332A1 Improvement to overvoltage protection device |
| 02/03/1999 | EP0895330A1 Test method and apparatus for testing a protective relay system |
| 02/03/1999 | EP0894356A1 Device and process for electronic monitoring of an adjusting drive in a vehicle |
| 02/03/1999 | EP0857368B1 Method of controlling a direct current drive |
| 02/03/1999 | CN2306603Y Phase interruption protector for AC motor |
| 02/02/1999 | US5867357 Dynamic protection circuit for a motor type load |
| 02/02/1999 | US5866957 Switching device |
| 02/02/1999 | CA2180187C Anti-snag latch assembly for a connector |
| 01/28/1999 | WO1998049765A3 Overvoltage protection circuit for smps based on demagnetization signal |
| 01/28/1999 | DE19732095A1 Schaltungsanordnung zum Ansteuern eines Motors mit einer Überlasterkennungseinrichtung Circuitry for driving a motor with an overload detection device |
| 01/28/1999 | DE19732094A1 Steuerschaltung für einen Gleichstrommotor Control circuit for a DC motor |
| 01/28/1999 | DE19731700A1 Dimmer for light control installation |
| 01/27/1999 | EP0893867A2 Resettable overcurrent protective circuit |
| 01/27/1999 | EP0892622A2 Motor controlled surgical system and method having self clearing motor control |
| 01/27/1999 | CN2305806Y Energy saving controller for three-phase motor |
| 01/27/1999 | CN2305804Y Electronic voltage reduction startor |
| 01/26/1999 | US5864456 Clock line over-current protector and industrial control system employing same |
| 01/26/1999 | US5864211 Circuit for operating incandescent bulbs with an overload detector circuit |
| 01/21/1999 | WO1999003185A1 Solid state overload relay |
| 01/21/1999 | WO1999003184A1 Solid state overload relay |
| 01/21/1999 | DE19730576A1 Overload protection for synchronous motor |
| 01/21/1999 | DE19727940A1 Equalising circuit for control of power consumer appliances coupled to DC supply |
| 01/20/1999 | EP0891522A1 Methods and apparatuses for detecting surge in centrifugal compressors |
| 01/20/1999 | CN2305016Y D/A convertor for pump driven by photocell |
| 01/20/1999 | CN2304992Y Three phase knife-blade switch |
| 01/19/1999 | US5862030 To provide overtemperature/mechanical damage sensing of electrical conductor |
| 01/19/1999 | US5862028 Method and apparatus for detecting quenching of a coil for a superconducting magnet |
| 01/19/1999 | US5861738 DC to DC converter with a single-fault tolerant clamp |
| 01/14/1999 | DE19728783A1 Overvoltage protection circuit for inputs to integrated circuits |
| 01/13/1999 | EP0890211A1 Process for detecting abutment and blocking in an electric motor |
| 01/13/1999 | CN2304183Y Relay-type protector for refrigerator |
| 01/13/1999 | CN1205127A 电池保护电路 Battery protection circuit |
| 01/13/1999 | CN1205126A Digital current differential system |
| 01/13/1999 | CN1205045A Window opening and closing apparatus |
| 01/13/1999 | CN1041677C Fault detecting circuit for voltage-type self-excitation power converter |
| 01/12/1999 | US5859772 Power converter circuit |
| 01/07/1999 | EP0889569A2 Installation apparatus |
| 01/07/1999 | EP0818077A4 Hybrid alternator |
| 01/07/1999 | EP0815631B1 Method for monitoring and controlling the opening and closing process of electrically powered units |
| 01/07/1999 | DE19751861A1 electrical drive system and motion control |
| 01/06/1999 | CN2303397Y Over-current electronic monitoring arrangement for motor |
| 01/06/1999 | CN2303396Y Multi-functional control box for emergency protection |
| 01/06/1999 | CN2303160Y Environmental protection type high efficiency and energy-saving lamp |
| 01/05/1999 | US5856773 Circuit protection device |
| 01/05/1999 | US5856751 Method and apparatus for monitoring an alternating signal |