Changes between Version 22 and Version 23 of MultiTEMS
- Timestamp:
- Nov 23, 2021, 3:10:55 PM (22 months ago)
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MultiTEMS
v22 v23 57 57 Investigating pseudo-sine wave output. They want in principle up to 20kHz. The Arduino Pro Mini we have runs at 8MHz (since it's 3.3V). That would make for rather poor PWM, though the TimerOne library can manage PWM outputs pretty well. 58 58 59 If they want to really do sine waves, we would need a HV buffer output, from e.g. an LTC6090 HV op-amp (140V p-p output). One could use a single DAC with an analog switch/mux driving four output buffers to avoid HV switching. 59 If they want to really do sine waves, we would need a HV buffer output, from e.g. an LTC6090 HV op-amp (140V p-p output). One could use a single DAC with an analog switch/mux driving four output buffers to avoid HV switching. DAC output should be 100-300kHz. Could use e.g. MCP4921 (12-bit SPI DAC). 60 60 61 61 '''2021-11-16'''
