Electrical power supplies
AssigneeData Beta Limited
InventorMaurice J. Capewell
Life of this patent
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Abstract
A power supply suitable for energizing an isolation amplifier requiring its input section to be isolated electrically from its output section. The power supply consists of a primary circuit, which, when energized by an electrical supply, converts the electrical energy to infrared radiation, and a secondary circuit which includes a solar cell or cells arranged to receive the infrared radiation. Electrical energy is generated by the solar cell or cells when irradiated. The primary circuit of the power supply includes a plurality of infrared emitting diodes which are energized electrically to provide infrared radiation. The current produced by the solar cell or cells in response to the radiation is applied to a regulating circuit.
Claims5
An amplifier arrangement including an isolated amplifier having an input section and an output section, an isolated power supply having a primary circuit and a secondary circuit, the secondary circuit of the power supply including a solar cell arranged, when irradiated, to supply direct current to the input section of the isolated amplifier, and the primary circuit of the power supply including a photo-emissive device arranged, when energized, to irradiate the solar cell, the input and output sections of the amplifier being physically separate from each other and the primary and secondary circuits of the power supply being physically separated from each other to permit an isolating member to be interposed between the input and output sections of the amplifier and between the primary and secondary circuits of the power supply.
Dependencies are inferred from the claim text.