what kind of relay changes electrical current and how?
as an example, If I were to make a small electric motor turn right or left what kind of relay device would switch the current from + - to - + and make the motor rotate from clockwise to counterclockwise. Post a link on how this works if necessary. In other words, how does an RC car go backwards by switching the current on the motor? Does the relay even do this?
- 10 years agoFavorite Answer
"Does a relay even do this?"
It can, but have a look at how H-bridges work.
- billrussell42Lv 710 years ago
You need a DPDT relay. There are many available. which specific one depends on the voltages and currents.