- Joined Jan 28, 2016
I am trying to drive a 120khz, 60W ultrasonic piezoelectric transducer. To do so I have an arduino mega2560 producing a 120khz frequency and am feeding that into the circuit to switch a TIP102 transistor. This transistor is feeding power to my transducer from a 12v power source. I intend to connect an inductor in parralel with the Transducer as this will amplify the output but will do so at a later time. For now I am just trying to get any output at all. So far I have been unable to get the transducer to do anything. I am basing my (very simple) driving circuit on this(full image found below), a schematic posted here. My transducer is this. The specs of the transducer are as follows.
- Frequency 120 KHz
- Power 60W
- resonate frequecy: 120±1.5 KHZ
- capacitance: 4000 ±10% PF
- resonate impedance :<=25Ω
- Isolation Resistance :>=100MΩ