Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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04/10/1987 | EP0154626A4 Uninterruptible power system. |
04/08/1987 | EP0217298A2 Self-commutated power converter |
03/25/1987 | EP0215348A2 Redundant power supply system |
03/24/1987 | US4652770 Power source device for a load with a stand-by power supply system |
03/17/1987 | US4651072 Variable frequency power source operating system |
03/17/1987 | US4651020 Redundant power supply system |
03/17/1987 | US4651019 Dual fueled thermoelectric generator |
03/03/1987 | US4647787 Backup battery power supply for microprocessor based telephones |
02/24/1987 | US4645943 Space-saving back-up power supply |
02/24/1987 | US4645940 Interrupt-free, unregulated power supply |
02/17/1987 | US4644440 Redundant power supply arrangement with surge protection |
02/17/1987 | US4644238 Airflow control apparatus |
02/10/1987 | US4642475 Uninterruptible power supply |
02/10/1987 | US4642474 Elevator rescue apparatus during stoppage of power supply |
02/03/1987 | US4641042 Power supply system and a control method thereof |
02/03/1987 | US4640389 System for controlling a motor |
01/29/1987 | WO1987000702A1 Stand-by power supply |
01/28/1987 | EP0209944A1 Static device for regulating energy exchange between generator or receptor systems |
01/22/1987 | DE3525061A1 Charging network |
01/20/1987 | US4638176 Uninterruptible power supply |
01/20/1987 | US4638175 Electric power distribution and load transfer system |
01/14/1987 | CN86104766A Controller for fuel cell power system |
01/06/1987 | US4634888 Uninterruptible power supply |
12/23/1986 | US4631471 Inductor apparatus for application of ferroresonant regulators |
12/17/1986 | EP0205014A2 Monitoring device |
12/16/1986 | US4629964 Battery power source |
12/09/1986 | US4628244 Electrical indicating circuit |
12/04/1986 | WO1986007210A1 Anti micro-breaking device |
11/26/1986 | EP0202459A2 Circuit arrangement operating at least one floorescent lamp |
11/18/1986 | CA1214210A1 Ac uninterruptible power system |
11/05/1986 | EP0200656A1 Non-interruptible alternating-current supply with a power of 1,500 VA or lower |
11/04/1986 | CA1213641A1 Standby power supply |
10/28/1986 | CA1213320A1 Device for generating alternating current from direct current |
10/22/1986 | CN86101648A Uninterruptible power supply with isolated bypass winding |
10/14/1986 | US4617473 CMOS backup power switching circuit |
10/14/1986 | CA1212752A1 Phase synchronization and control circuit |
10/14/1986 | CA1212751A1 High frequency inverter |
10/01/1986 | EP0196004A2 Inductor apparatus for application to ferroresonant regulators |
09/30/1986 | US4614877 Apparatus for a redundant power supply |
09/24/1986 | EP0195551A2 Improved AC motor-generator |
09/10/1986 | CN86101421A Elevator rescue apparatus during stoppage of power supply |
09/03/1986 | EP0193039A1 Method and device for uninterrupted power supply |
09/02/1986 | US4609829 Apparatus for assisting in the connection and disconnection of a board with an energized circuit |
09/02/1986 | CA1210810A1 Supply for providing uninterruptible d-c power to a load |
08/27/1986 | EP0058202B1 Power suplly circuit for electronic safety ski bindings |
08/20/1986 | EP0191579A2 Emergency lighting system |
08/14/1986 | WO1986004709A1 Emergency lighting supervisory system |
08/13/1986 | CN85100969A Protector for power supply interruption and step out of a.c.electric machine |
08/05/1986 | US4604530 Power supply equipment backup system for interruption of service |
07/23/1986 | CN85107714A Current source conversion apparatus having auto-cutoff devices |
07/16/1986 | EP0187369A2 Power supply system for an electronic apparatus having memory |
07/08/1986 | CA1207424A1 Processes and devices for providing a load with an electric ac supply, without discontinuity of the ac signal |
07/02/1986 | EP0186601A2 Dual fueled thermoelectric generator |
06/17/1986 | US4595872 Computer-attached uninterruptable DC power supply |
06/04/1986 | EP0183597A1 Protection circuit against electric power supply cut-off |
05/27/1986 | CA1205162A1 Electric motor damper drive with backup power pack |
05/20/1986 | US4590387 Transfer switch |
05/13/1986 | US4588900 Inverter control system |
04/15/1986 | US4583004 Current monitoring circuit for static switch of uninterruptable power system |
04/10/1986 | CN85108395A Fuel supplying apparatus |
04/08/1986 | US4581571 Electrical power disconnect system |
04/01/1986 | US4580248 Electronic apparatus with memory backup system |
04/01/1986 | CA1202711A1 Uninterruptible ac power supply |
03/26/1986 | EP0175099A1 Device for uninterruptible voltage commutation |
03/11/1986 | US4575640 Power circuit control apparatus for primary and auxiliary loads |
03/04/1986 | CA1201521A1 Electromechanically controlled automatic transfer switch and bypass switch assembly |
02/25/1986 | CA1201165A1 Uninterruptible power system |
02/19/1986 | EP0171629A1 Autonomy testing device for an emergency lighting unit |
02/19/1986 | CN85200436U Multiple purpose lamp for emergency lighting in case of power cut. |
02/18/1986 | US4571531 Automatic protective circuit system for emergency lights |
01/29/1986 | EP0169756A1 Stabilized electrical-power supply |
01/21/1986 | US4565960 Power supply switching circuit |
01/14/1986 | US4564767 Uninterruptible switching power supply system |
01/07/1986 | US4563628 Supervision system for monitoring the condition of a battery and a series-connected fuse |
01/07/1986 | US4563624 Variable speed refrigeration compressor |
01/02/1986 | EP0165938A1 Method and device for supplying in emergency conditions a system from the mains |
12/31/1985 | US4562357 Uninterruptible power supply and a starting method |
12/27/1985 | EP0165898A2 Device for compensating AC network power failure |
12/27/1985 | EP0165843A1 Reversible current converter and uninterruptory power supply comprising the same |
12/24/1985 | US4560887 Standby power supply |
12/24/1985 | US4560886 Alternating current power source |
12/17/1985 | US4559456 Battery powered electric appliance |
12/03/1985 | US4556802 Uninterruptible ac power supply |
12/03/1985 | CA1197635A1 Elevator control system |
11/27/1985 | EP0162563A2 Back-up power supply system |
11/13/1985 | EP0160787A1 Variable frequency power unit controlling system |
11/12/1985 | US4553081 Portable battery powered system |
11/06/1985 | EP0160163A1 Variable frequency power source operating system |
10/16/1985 | EP0158007A1 Redundant current supply |
10/16/1985 | EP0157855A1 Uninterruptible power supply and line conditioner |
09/24/1985 | US4543522 Regulator with a low drop-out voltage |
09/18/1985 | EP0154626A1 Uninterruptible power system. |
09/03/1985 | US4539487 Power supply system |
08/28/1985 | EP0152458A1 Inverter for uninterruptible power supply |
08/27/1985 | US4538058 Power supply system of a device designed to cooperate with a removable electronic medium such as a card and device equipped with such a system |
08/07/1985 | EP0150853A2 Electric power supply device |
08/06/1985 | US4533865 Circuit arrangement for identifying and storing power line faults |
07/24/1985 | EP0058720B1 Stand-by energy source, in particular an electrical supply source |
07/09/1985 | US4528459 Battery backup power switch |
06/25/1985 | US4525661 Stand-by electrical supply source |