Two terminal arc suppressor
First Claim
1. An arc suppressor, comprising:
- a contact separation detector circuit, coupled to electrical contacts, configured to detect a separation of the electrical contacts and output a signal indicative of the separation; and
a contact bypass circuit, connected between the electrical contacts and coupled to the contact separation detector, configured to switch from a non-conductive state to a conductive state upon receiving the signal indication of the separation of the electrical contacts.
1 Assignment
0 Petitions
Accused Products
Abstract
A two terminal arc suppressor for protecting switch, relay or contactor contacts and the like comprises a two terminal module adapted to be attached in parallel with the contacts to be protected and including a circuit for deriving an operating voltage upon the transitioning of the switch, relay or contactor contacts from a closed to an open disposition, the power being rectified and the resulting DC signal used to trigger a power triac switch via an optoisolator circuit whereby arc suppression pulses are generated for short predetermined intervals only at a transition of the mechanical switch, relay or contactor contacts from an closed to an open transition and, again, at an open to a close transition during contact bounce conditions.
318 Citations
20 Claims
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1. An arc suppressor, comprising:
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a contact separation detector circuit, coupled to electrical contacts, configured to detect a separation of the electrical contacts and output a signal indicative of the separation; and a contact bypass circuit, connected between the electrical contacts and coupled to the contact separation detector, configured to switch from a non-conductive state to a conductive state upon receiving the signal indication of the separation of the electrical contacts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An method of making an arc suppressor, comprising:
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making a contact separation detector circuit, coupled to electrical contacts, configured to detect a separation of the electrical contacts and output a signal indicative of the separation; and coupling a contact bypass circuit between the electrical contacts to the contact separation detector, the contact bypass circuit configured to switch from a non-conductive state to a conductive state upon receiving the signal indication of the separation of the electrical contacts. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification