US4730121B1
(en )
1998-09-15
Power controller for circuits with battery backup
GB2185326B
(en )
1990-03-14
A circuit arrangement for judging the lifetime of a battery in a no-break power supply system
GB2182510B
(en )
1989-10-04
Electrical power supply with battery backup
GB2271229B
(en )
1996-01-03
Monitoring the internal impedance of an accumulator battery in an uninterruptible power supply
GB2179477B
(en )
1989-03-30
Power supply circuit
EP0157282A3
(en )
1988-01-07
Electric power supply circuit capable of reducing a losselectric power supply circuit capable of reducing a loss of electric power of electric power
EP0314386A3
(en )
1989-11-29
A power supply
AU629919B2
(en )
1992-10-15
Insulation monitoring system of a direct current power supply system
JPS5791640A
(en )
1982-06-07
Controller having battery backup power supply
EP0295858A3
(en )
1989-11-15
High voltage dc power supply
EP0409327A3
(en )
1992-01-15
Power supply with dc-voltage monitoring circuit
DE3572549D1
(en )
1989-09-28
Circuit for monitoring the electric current supply of a consumer
GB2206982B
(en )
1992-01-02
Direct current power supply
GB2213600B
(en )
1990-02-21
A circuit arrangement for judging the lifetime of a battery in a no-break power supply system
GB2216277B
(en )
1993-01-13
System for monitoring the charge level of batteries particularly for stand-by electrical supply units
PL265875A1
(en )
1988-11-24
Circuit arrangement for monitoring operation of an accumulator battery with a dc power supply
GB8708101D0
(en )
1987-05-13
Power supply circuit
GB2150373B
(en )
1987-06-17
Electrical power supply unit with a failsafe shutdown capability
GB8628176D0
(en )
1986-12-31
Power supply circuit
EP0433696A3
(en )
1991-08-28
A circuit with hysteresis for power supply voltage detection
GB2181306B
(en )
1989-09-27
Self charging battery electrical operated system
EP0468241A3
(en )
1993-04-07
Charging circuit for a battery powered electric toothbrush
GB2181576B
(en )
1989-09-27
Interruption-free power supply arrangement
AU589035B2
(en )
1989-09-28
Dc power supply for float charged batteries
HUT40285A
(en )
1986-11-28
Circuit arrangement for supplying and charging apparatuses with accumulator