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Electric energy source having safety control device

  • US 6,531,789 B1
  • Filed: 08/24/2001
  • Issued: 03/11/2003
  • Est. Priority Date: 08/24/2001
  • Status: Expired due to Term
First Claim
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1. An electric energy source for coupling to and for supplying an electric energy to a vehicle battery, said electric energy source comprising:

  • a) first battery, b) a positive and a negative booster clamps coupled to said first battery for coupling said first battery to the vehicle battery, c) a first relay coupled to said first battery for switching off an electric circuit to said first battery before said positive and said negative booster clamps are correctly coupled to the vehicle battery, d) a second relay coupled between said first relay and said positive booster clamp for being actuated by said first relay to supply an electric energy to said positive booster clasp, e) a positive voltage detecting circuit including a transistor coupled to said first relay for actuating said first relay when said positive and said negative booster clamps have been detected to be correctly coupled to the vehicle battery, f) a negative voltage detecting circuit includinging an amplifier coupled to said transistor of said positive voltage detecting circuit, and g) means for generating a warning signal when said positive and said negative booster clamps have been detected to be wrongly coupled to the vehicle battery.

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