Hello,
I’m designing an ultrasound pulser-receiver using either the HV7360 or HV7361. Both components can handle ±100V and outputs can source and sink up to 2A current. However, I’m struggling to find a suitable power supply that can deliver ±100V at 2A.

I´m not a experienced hardware designer, so I searching for commercial AC/DC or DC/DC ±100V converters, but none seem to meet the 2A requirement. I also reviewed the HV7321, HV7351, or STHV748 demo boards, but they don’t explain how to generate the required bipolar high voltage.

Could you suggest a suitable solution?

Any help will be appreciated.

 

Why does it have to be bipolar?

 

Thank you MrChips for your reply.
The ultrasound transducer need to be applied a rectangular +/-100V 1MHz burst (configurable from 1 to 16 pulses). 200Vpp. This burst will be applied once every 30 minutes.

 

If you use two floating 100 VDC supplies you can connect the supplies in series.

 

Do you mean something like the attached sketch? Would there be any issue connecting the resulting reference to the ground of the rest of the circuit? Could you please guide me a little bit?

 

What you have drawn is correct. Make certain that the power supply is floating, i.e. there is no galvanic connection to line voltage or earth ground.

 

PattPatt
You don't need a source with 2A. It must allow a pulse current of 2A. After all, the consumption is short-term and the capacitors at the output will fully produce the required current. That's my opinion.

 

PattPatt
You don't need a source with 2A. It must allow a pulse current of 2A. After all, the consumption is short-term and the capacitors at the output will fully produce the required current. That's my opinion.

Thank you. This is the way I will follow in my designing.

 

What you have drawn is correct. Make certain that the power supply is floating, i.e. there is no galvanic connection to line voltage or earth ground.

Thank you for your valuable contribution.