Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1994-08-24
2000-11-21
Paladini, Albert W.
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
307 24, 307 28, 200297, 361601, 361641, H02M 100
Patent
active
061507377
ABSTRACT:
A power supply is adapted to be powered from an ordinary electric utility power line, or alternately from a standby storage battery, and is operable to provide a power-line-isolated output of 120 Volt RMS at a frequency of about 30 kHz. The Volt-Ampere product available from this power supply is limited to be no more than 100 Volt-Ampere. Due to the high frequency, the electric shock hazard associated with this 120 Volt/30 kHz power supply is not higher than it is for a power supply voltage a voltage of only 30 Volt RMS at 60 Hz.
The power supply is used to provide shock-hazard-free and fire-initiation-hazard-free electric power for an auxiliary power distribution system in a home. Due to the Volt-Ampere limitation and the absence of shock-hazard, the power distribution can safely be done by way of so-called bell wire installation and without requiring the services of a licensed electrician.
Due to the battery back-up feature, this auxiliary power distribution system can provide uninterruptible power to critical loads such as computer terminals, security systems, smoke/fire alarms, safety lighting, etc.
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