Patent ID: 7084606
Filing Date: 2006-08-01
Classification: H02J

Abstract:
1. A non-polarity charging device comprises: a direct current input terminal, a positive sensor terminal, a negative sensor terminal, a correct polarity sensor circuit, a correct polarity conducting circuit, an incorrect polarity sensor circuit, an incorrect polarity conducting circuit, a manual switch, a positive clamp output, a negative clamp output and a current indicator circuit; where the positive sensor terminal, negative sensor terminal are to connect to a battery, if and when the connections are made with the correct polarity, meaning the positive sensor terminal leads to the battery positive terminal and the negative sensor terminal leads to the battery negative terminal, the correct polarity sensing circuit detects the correct polarity of the circuit then turns on the correct polarity conducting circuit, whereby sending the current through the positive clamp output to the battery positive terminal, then back to the charging device through the negative clamp output, forming a complete circuit; if and when the connections are made with the incorrect polarity, meaning the positive sensor terminal leads to the negative battery terminal and the negative sensor terminal leads to the positive battery terminal, the incorrect polarity sensing circuit detects the incorrect polarity of the circuit then turns on the incorrect polarity conducting circuit, whereby sending the current through the negative clamp output to the battery positive terminal, then back to the charging device through the positive clamp output, forming a complete circuit; also, as the charging device completes the polarity sensing and enters the charging state, the current indicator circuit, connected between the positive clamp output and the negative output clamp, start to indicate that the charging device is functioning.