I am not trained in electrical or electronics theory; and wish to construct an electronic switch capable of facilitating an alternation in polarity in an electromagnet [EM] continually powered by a DC battery source. Using mediating terminals, my idea is to incorporate transistor switches in 2 circuits to the electromagnet, one circuit with wires [+] and [-] to ends [A] and of the EM, the other with those [+] and [-] wires to ends and [A] respectively; and to switch one on simultaneously with switching the other off and vice versa.
The problem is that because the resistance in the EM coil is ~0.1 Ohm, and the current is ~120 Amps --necessary for EM strength--, I don't know what sort of transistors to use, or whether any transistor is capable of handing the power involved. I wondered therefore whether some timing device used in high power transmission might be suitable.
The problem is that because the resistance in the EM coil is ~0.1 Ohm, and the current is ~120 Amps --necessary for EM strength--, I don't know what sort of transistors to use, or whether any transistor is capable of handing the power involved. I wondered therefore whether some timing device used in high power transmission might be suitable.
