Improved rectifier with protected polarity for charging batteries of the type of diodes supplied with alternating current by transformer obtaining in its output a direct current, characterized by comprising a contactor in the interleaved output circuit, whose poles connect and disconnect this circuit, which has its coil fed through the contacts of a relay, whose coil is powered by two auxiliary circuits, one of them of fixed polarity, composed of auxiliary transformer, similar to the main one, and the other fed from the output terminals of the main rectifier, with subsequent to the contactor, whose negative terminal is connected to the positive of the auxiliary rectifier, passing to the positive through a diode to a resonant circuit composed of capacitors and transistor resistors and a second diode, connected and with values depending on the supply voltage for correct operation of the relay coil. (Machine-translation by Google Translate, not legally binding)
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