Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1995-06-20
1998-08-11
Elms, Richard T.
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
307 64, 307 70, 307 80, 320 2, 361625, 363 81, H02J 904
Patent
active
057931232
ABSTRACT:
The disclosure concerns an electronic device, for example a radio-alarm clock, that can be powered from the mains power supply or from batteries and can operate without interruption when changing from one of these power supplies to the other. It comprises a support connected to the mains and a mobile part that can be placed in electrical contact with said support and that includes at least one electronic circuit requiring power. This electronic circuit is powered from the mains via a first diode when said mobile part is placed in electrical contact with said support, and is powered by at least one battery via a second diode when said mobile part is removed from said support.
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patent: 5159256 (1992-10-01), Mattinger et al.
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Search report--France.
Grossier Michel
Ho Wai Keung
Mingot Jacques
Elms Richard T.
Paladini Albert W.
Thomson Multimedia S.A.
Tripoli Joseph S.
Wein Frederick A.
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