Control circuitry
First Claim
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1. Control circuitry comprising:
- a first voltage source for supplying a first voltage V1;
a second voltage source for supplying a second voltage V2;
a first circuit comprising an energizable means and a first diode arrangement connected in series therewith across said first and second voltage sources;
a second circuit comprising a second energizable means and a second diode arrangement connected in series therewith across said first and second voltage sources;
said first and second voltages being arranged so that V1-V2 is greater than a first value, said first diode arrangement becomes conductive and said first energizable means is energized and, when V1-V2, is less than a second value, said second diode arrangement is conductive and said second energizable means is energized.
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Abstract
Control circuitry utilizing first and second voltage sources and first and second circuits across such sources, one circuit having a first energizable element in series with a first diode arrangement and the other circuit having a second energizable element in series with a second diode arrangement. If the voltage difference from the sources is greater than a first value the first diode arrangement is conductive and the energizable element is energized, while if such voltage difference is less than a second value this second diode arrangement is conductive and the second energizable element is energized.
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Citations
7 Claims
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1. Control circuitry comprising:
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a first voltage source for supplying a first voltage V1; a second voltage source for supplying a second voltage V2; a first circuit comprising an energizable means and a first diode arrangement connected in series therewith across said first and second voltage sources; a second circuit comprising a second energizable means and a second diode arrangement connected in series therewith across said first and second voltage sources; said first and second voltages being arranged so that V1-V2 is greater than a first value, said first diode arrangement becomes conductive and said first energizable means is energized and, when V1-V2, is less than a second value, said second diode arrangement is conductive and said second energizable means is energized. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification