h9876
Newbie level 6
Hi,
I want to drive a windscreen wiper motor. It is 12vdc and consumes about 5-6 A of current when used in full load. Since I am not doing any fast switching and the speed of the motor is not important for me I decided to drive it using a bridge made out of 4 relays. The only problem I have now is that I don't know what source to use for it's power. I was thinking of using a 16V or 12v transformer, a full bridge rectifier and a large capacitor to create a dc voltage. But ofcourse the output of such a circuit will not be fully DC. The question I have is that will this unstable DC source damage the motor or not? Can these kind of motors tolerate higher voltages than the 12 volt rated? The motor will be on in forward or revers direction for at most twenty seconds everytime.
Thanks
I want to drive a windscreen wiper motor. It is 12vdc and consumes about 5-6 A of current when used in full load. Since I am not doing any fast switching and the speed of the motor is not important for me I decided to drive it using a bridge made out of 4 relays. The only problem I have now is that I don't know what source to use for it's power. I was thinking of using a 16V or 12v transformer, a full bridge rectifier and a large capacitor to create a dc voltage. But ofcourse the output of such a circuit will not be fully DC. The question I have is that will this unstable DC source damage the motor or not? Can these kind of motors tolerate higher voltages than the 12 volt rated? The motor will be on in forward or revers direction for at most twenty seconds everytime.
Thanks