module | author |
---|---|
alt.tbo |
kelu124 |
alt.tbo: the bipolar HV-pulser
- The second iteration of the HV-Pulser of the echOmods
- Setup? Soon a quickstart?
- version: V0.3
- cost:120$
- sourcing:Tindie
- date: 24/09/2017
- technology: Module-compatible, Homemade PCB, ICs based on
TC6320TG
andNMT0572SC
- language: Altium
- author: Kelu124
ITF-1_GND
ITF-2_VDD_5V
ITF-9_Pon
ITF-10_Poff
ITF-19_3.3V
ITF-mET_Transducer
: signal coming back
ITF-18_Raw
: for the signal coming from the transducerITF-mET_SMA
: for the signal coming out to the signal processing (if through SMA)ITF-mET_Transducer
: for the signal coming out of the pulser (if through SMA)
TC6320TG
NMT0572SC
The aim of this echOmod is to get the HV Pulse done.
Pulse-P
->TC6320TG
Pulse-N
->TC6320TG
Damper
->TC6320TG
NMT0572SC
->HV-N
->TC6320TG
NMT0572SC
->HV-P
->TC6320TG
->ITF-mET_Transducer
ITF-mET_Transducer
->ITF-mET_SMA
ITF-mET_Transducer
->ITF-18_Raw
- Cheaper, more robust than tobo
- Less issues with the MD0100
- As of today (20180305), the damper still lacks
- First experiment jupyter notebook and first datasets
- Driver for raspberry pi
- More tests with fixed depth experiment (for pulse quality tests).
- Needed to get 200ns wide square pulses, both in the positive and negative.
- Control of pulses must be through 3.3 or 5V tolerant logic
- Pulses height must be selectable (say with a jumper?) for ~20V, 40V, 80V (for positive pulses) and -20, -40V, and -80V for negative.
- Only power supply available is 5V
- See this application note - recommend MD1213 and TC6320
- Possible (but not used in the end) high voltage source: https://datasheets.maximintegrated.com/en/ds/MAX5025-MAX5028.pdf (3 -> 30V) to be used with a 555 DC-DC convertor
- Signal back from the diod is clipped by MD0100 + back to back diods.
To be powered at 5V only.
- HV: NMT0572SC
- Pulser : MD1213 and TC6320 -> see Fig.6 here, bipolar 3 level pulser.
- TC6320, undamped, detailed here.
- TC6320 http://ww1.microchip.com/downloads/en/DeviceDoc/20005697A.pdf for the datasheet
- Protection: MD0100+diods -- should be enough, see bottom of page 1, or Fig 9
- Check a design w/ this idea which is similar to this other idea or this last idea.
- IMPORTANT - do these corrections for a bipulser.
- A new unipulser design is on the way
- Preliminary tests
- Sofian (for preparing the field with Murgen)
- Ivan for the TC6320TG
The echOmods project and its prototypes (amongst which we find the alt.tbo module) are open hardware, and working with open-hardware components.
Licensed under TAPR Open Hardware License (www.tapr.org/OHL)
Copyright Kelu124 ([email protected]) 2015-2018
The following work is base on a previous TAPR project, Murgen - and respects its TAPR license.
Copyright Kelu124 ([email protected]) 2015-2018