Photo-Voltaic Safety De-Energizing Device
First Claim
1. A safety mechanism for a solar cell group, the safety mechanism comprising:
- a signal receiver arranged to assert a permissive signal indicative of reception by said signal receiver of a predetermined signal;
an electronically controlled switch arranged to provide in a first state an effective short circuit across the output of the solar cell group responsive to the absence of the asserted permissive signal of said signal receiver; and
a power harvester in communication with the solar cell group and arranged to provide an electric power to said signal receiver when said electronically controlled switch is in the first state.
17 Assignments
0 Petitions
Accused Products
Abstract
A safety mechanism for a solar cell group, the safety mechanism constituted of: a signal receiver arranged to assert a permissive signal indicative of reception by the signal receiver of a predetermined signal; an electronically controlled switch arranged to provide in a closed state an effective short circuit across the output of the solar cell group responsive to the absence of the asserted permissive signal of the signal receiver; and a power harvester in communication with the solar cell group and arranged to provide electric power to the signal receiver when the electronically controlled switch is the closed state.
32 Citations
20 Claims
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1. A safety mechanism for a solar cell group, the safety mechanism comprising:
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a signal receiver arranged to assert a permissive signal indicative of reception by said signal receiver of a predetermined signal; an electronically controlled switch arranged to provide in a first state an effective short circuit across the output of the solar cell group responsive to the absence of the asserted permissive signal of said signal receiver; and a power harvester in communication with the solar cell group and arranged to provide an electric power to said signal receiver when said electronically controlled switch is in the first state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of providing safety for a solar cell group, the method comprising:
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asserting a permissive signal output from a signal receiver responsive to reception of a predetermined signal by the signal receiver; providing an effective short circuit across the output of the solar cell group responsive to the absence of the asserted permissive signal; harvesting power from across the solar cell group; and supplying at least a portion of said harvested power to the signal receiver when said effective short circuit is provided. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification