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Vehicle-trailer signal converter

  • US 6,545,600 B1
  • Filed: 06/22/2000
  • Issued: 04/08/2003
  • Est. Priority Date: 06/22/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus for connecting a vehicle'"'"'s lighting system to a trailer'"'"'s lighting system, comprising:

  • a vehicle lamp control signal input;

    a trailer lamp signal output;

    a negative logic gate having one or more gate inputs and a gate output, wherein at least one of said gate inputs is connected to said vehicle lamp control signal input; and

    a power switch having a first lead, a second lead, a third lead, an electrical potential difference between said first lead and said third lead, and a first predetermined threshold voltage, wherein;

    said first lead is connected to a power signal;

    said second lead is connected to said trailer lamp signal output;

    said third lead is controlled by said gate output; and

    said power switch conducts from said first lead to said second lead when said electrical potential difference exceeds said first predetermined threshold voltage under normal operating conditions.

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