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Interconnecting circuit for connecting one d.c. voltage source to another

  • US 4,663,579 A
  • Filed: 01/15/1986
  • Issued: 05/05/1987
  • Est. Priority Date: 01/15/1986
  • Status: Expired due to Term
First Claim
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1. An interconnecting circuit for connecting a first d.c. source to a second d.c. source, the circuit comprising first means responsive to connection polarity of the one voltage source for developing a ONE signal whenever a given connection polarity of the first source is present and a ZERO signal whenever a connection polarity opposite to the given connection polarity of the first source is present;

  • second means responsive to connection polarity of the second d.c. source for developing a ONE signal whenever a given connection polarity of the second source is present and a ZERO signal whenever a connection polarity opposite to the given connection polarity of the second source is present;

    exclusive OR gate circuit means responsive to the outputs from said first means and said second means for developing a control signal; and

    relay means having first and second conditions, said relay means being responsive to the control signal, wherein said relay means includes two normally open pairs of contacts for connecting a first terminal of the first source to a first terminal of the second source and a second terminal of the first source to a second terminal of the second whenever the relay means is in its first condition and wherein said relay means further includes two normally closed pairs of contacts for connecting the first terminal of the first source to the second terminal of the second source and the second terminal of the first source to the first terminal of the second source whenever said relay means is in its second condition.

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