| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 07/26/1988 | US4760276 Power supply system, for segmented loads, having phantom redundancy |
| 07/12/1988 | US4757249 Vehicle dual electrical system |
| 06/29/1988 | EP0272961A1 Housing cabinet for a plurality of electronic subracks for a static non-interrupted power supply |
| 06/29/1988 | CN87107471A Static converter, especially for uninterruptible electrical power supply system |
| 06/28/1988 | US4754160 Power supply switching circuit |
| 06/22/1988 | EP0271498A1 Emergency power system |
| 06/16/1988 | WO1988004494A1 Peak power shaving apparatus and method |
| 06/14/1988 | US4751398 Lighting system for normal and emergency operation of high intensity discharge lamps |
| 06/08/1988 | EP0269767A1 Power supply apparatus |
| 06/07/1988 | US4749908 Emergency power supply |
| 05/31/1988 | US4748341 Uninterruptible power supply |
| 05/24/1988 | US4747061 Automatic transfer switch for a wide range of source voltage |
| 05/17/1988 | US4745299 Off-line switcher with battery reserve |
| 05/11/1988 | EP0266356A1 Stand-by power supply |
| 05/11/1988 | DE3637338A1 Electrical power supply circuit |
| 05/10/1988 | CA1236524A1 Uninterruptible power supply and line conditioner |
| 05/04/1988 | EP0266213A2 Emergency lighting system |
| 05/03/1988 | US4742424 Power status monitor for electronic system |
| 04/28/1988 | DE3636346A1 Circuit arrangement for supplying power to a load |
| 04/26/1988 | CA1235734A1 Variable frequency power unit controlling system |
| 04/12/1988 | US4737702 For controlling current flow to a load |
| 04/06/1988 | EP0262173A1 Apparatus for ensuring maximum safety of the relief operation of storage batteries and charging apparatus in transformer stations and power plants |
| 03/30/1988 | EP0261491A2 Battery supplied electronic apparatus |
| 03/24/1988 | WO1988002191A1 Back-up power source device |
| 03/22/1988 | US4733341 Plural inverter synchronizer and control apparatus |
| 03/17/1988 | DE3703908A1 Method for disconnecting an electrical power source |
| 03/08/1988 | US4730121 Power controller for circuits with battery backup |
| 03/01/1988 | US4729086 Power supply system which shares current from a single redundant supply with multiple segmented loads |
| 03/01/1988 | US4729083 D.C. power supply with improved transparency to power interrupts |
| 03/01/1988 | US4728808 Uninterruptible power supply system |
| 02/23/1988 | US4727291 Back-up electrical system for lamps |
| 02/11/1988 | WO1988000896A1 Safety device for car passengers |
| 01/12/1988 | US4719550 Uninterruptible power supply with energy conversion and enhancement |
| 01/05/1988 | US4717998 Static device for control of energy-exchange between electrical generating and/or receiving systems |
| 12/30/1987 | WO1987007990A1 Emergency power system |
| 12/29/1987 | US4716354 Automatic voltage regulator means providing a dual low power responsive and output-voltage-controlling regulator signal particularly for a plural source battery powered system |
| 12/17/1987 | WO1987007783A1 Switch protection mechanism |
| 12/17/1987 | WO1987007782A1 A general purpose uninterruptible power supply |
| 12/15/1987 | US4713555 Battery charging protection circuit |
| 12/15/1987 | US4713554 Extended range regulated power supply |
| 12/10/1987 | DE3618790A1 Method for testing a large number of emergency lights in an illumination system, and a test system for carrying out the method |
| 12/09/1987 | EP0248273A1 Emergency system for a remotely controlled receiver |
| 11/25/1987 | EP0246595A1 Device serving as an emergency power-generating set |
| 11/24/1987 | US4709318 UPS apparatus with control protocols |
| 11/24/1987 | US4709202 Battery powered system |
| 11/24/1987 | US4708223 Emergency lighting for elevator cab |
| 11/17/1987 | US4707618 For maintaining continuous flow of power to a load |
| 11/12/1987 | DE3704426A1 Device for the redundant DC supply of electrical loads |
| 11/04/1987 | EP0244186A2 Electronic power supply |
| 11/04/1987 | EP0243414A1 Device for providing an uninterrupted power supply |
| 11/03/1987 | US4704542 Standby power supply |
| 10/28/1987 | EP0243061A2 Off-line switcher with battery reserve |
| 10/27/1987 | US4703193 Apparatus for controlling the parallel operation of an A-C output converter for a commercial power source including a circuit for simulating output current for test purposes |
| 10/27/1987 | US4703192 Alternating current power source with improved phase adjusting capability |
| 10/27/1987 | US4703191 Reserve power source with power failure detection apparatus |
| 10/20/1987 | US4701693 Solar battery circuit |
| 10/13/1987 | US4700125 Power supply switching circuit |
| 10/13/1987 | CA1228119A1 Power supply equipment backup system for interruption of service |
| 10/06/1987 | US4697909 Power source device with reserve power source for camera |
| 09/30/1987 | EP0238803A1 Stabilized power-supply circuit |
| 09/16/1987 | EP0237369A1 Electric power supply provided with an alternating output voltage |
| 09/15/1987 | US4694194 Power supply with battery backup |
| 09/09/1987 | EP0235401A1 Power supply switch circuit |
| 09/09/1987 | CN86108758A Control apparatus of converter |
| 09/08/1987 | US4692632 Procedure and apparatus for uninterruptible power supply |
| 09/01/1987 | US4691156 Variable frequency power unit controlling system |
| 09/01/1987 | US4691118 Solar power circuit |
| 08/13/1987 | WO1987004874A1 Apparatus for ensuring maximum safety of the relief operation of storage batteries and charging apparatus in transformer stations and power plants |
| 08/11/1987 | US4686424 Emergency lighting circuits |
| 08/11/1987 | US4686379 No-break power supply system |
| 08/11/1987 | US4686375 Uninterruptible power supply cogeneration system |
| 07/21/1987 | US4682078 Wireless emergency lighting unit |
| 06/30/1987 | US4677311 Power supply system for an electronic apparatus having memory |
| 06/30/1987 | US4677309 Self-commutated inverter is selectively decoupled from an AC grid |
| 06/24/1987 | CN86203470U Automatic threshold voltage source switching unit |
| 06/23/1987 | US4675539 Backup power system |
| 06/23/1987 | US4675538 General purpose uninterruptible power supply |
| 06/16/1987 | US4673826 Autonomous uninterruptable power supply apparatus |
| 06/16/1987 | US4673825 Uninterruptible power supply with isolated bypass winding |
| 06/16/1987 | US4673824 Power supply switch circuit |
| 06/16/1987 | EP0225466A1 Battery-powered electronic device |
| 06/09/1987 | US4672520 Current-source power converting apparatus with self-extinction devices |
| 06/09/1987 | US4672296 Mobile emergency medical vehicle with auxiliary engine/generator providing AC/DC output |
| 06/09/1987 | US4672293 Power-supply/battery back-up power supply/battery charger combination |
| 06/09/1987 | US4672228 Battery backup system for switched power supply |
| 06/09/1987 | US4672227 Automatic transfer switch with delay |
| 06/09/1987 | CA1222804A1 Airflow control apparatus |
| 06/03/1987 | EP0223771A1 Anti micro-breaking device |
| 06/02/1987 | US4670702 Controller for fuel cell power system |
| 06/02/1987 | US4670661 Battery backup circuit |
| 05/26/1987 | CA1222283A1 Motor vehicle battery rundown protection system |
| 05/20/1987 | CN86202261U Tv power supply device for powerless area |
| 05/19/1987 | US4667116 Inverter control circuit |
| 05/12/1987 | US4665322 Uninterruptible polyphase AC power supply |
| 05/07/1987 | WO1987002838A1 Device for providing an uninterrupted power supply |
| 05/05/1987 | US4663536 A.C. motor-generator |
| 04/29/1987 | EP0219617A1 Digital equipment |
| 04/28/1987 | US4661762 Emergency power system |
| 04/21/1987 | US4659942 Fault-tolerant power distribution system |
| 04/16/1987 | DE3633663A1 Uninterruptable power supply equipment |