Jonathan_Haroonian
New Member
I am making an ultrasonic transducer cleaning circuit. Please guide me on how to make it as I am not an expert in electronics but have some skill in it. It has to be a few hundred watts in power, say 500 watts.
Here is my idea: As a power source I am using a variac rated at 2000 watts. It is connected through a diode as a half wave rectifier to the emitter of a power transistor (2n3055) and controlled by a signal generator connected to the base. It passes through the transistor to a transformer which steps up the voltage from say 10v to 100v, and then is led back to the other terminal of the variac. Up to here there is no problem, but the problem arises when I try to add transistors, since one is not enough for 500 watts. Each is rated for 100w, and I can use only 50 watts in my understanding of that.
So how do I connect transistors to increase the total power?
Here is my idea: As a power source I am using a variac rated at 2000 watts. It is connected through a diode as a half wave rectifier to the emitter of a power transistor (2n3055) and controlled by a signal generator connected to the base. It passes through the transistor to a transformer which steps up the voltage from say 10v to 100v, and then is led back to the other terminal of the variac. Up to here there is no problem, but the problem arises when I try to add transistors, since one is not enough for 500 watts. Each is rated for 100w, and I can use only 50 watts in my understanding of that.
So how do I connect transistors to increase the total power?