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DC-DC 12V-1kV
I think going from 12v to 1000v directly with a boost is not so easy, you have an extreme dutycycle. I also have experienced difficulties in making HV transformers since the...
Thursday, 8 March 2012 - 16:25
AY 3 3550 datasheet
Date code is 8207 while mine is 5904, so what a young chip. :lol:
Thursday, 1 December 2011 - 21:24
avionics instrument, motor
For those who are interested in synchro/resolvers: Synchro/Resolver Conversion Handbook
Monday, 29 August 2011 - 18:52
avionics instrument, motor
another photo
Sunday, 28 August 2011 - 12:34
avionics instrument, motor
Here are some more photos for daqq. And I have a video on youtube:
Sunday, 28 August 2011 - 12:33
avionics instrument, motor
My first project is probably a kind of clock. In that design I would move the dials to the right position every minute or so. So most of the time the motors will be off. So danger...
Wednesday, 24 August 2011 - 14:01
avionics instrument, motor
The good thing is, that I can use squarewaves to drive the motors. Making 24Vpp squarewave is much easier than 24V sine. I now us a simple halfbridge made from darlingtons. Works...
Tuesday, 23 August 2011 - 19:06
avionics instrument, motor
I got the motor running. :lol: I supplied the phase labeled "ref" with 20V 400Hz and one of the other windings with 400Hz but phase shifted about 30 degrees. I am not sure whether...
Monday, 22 August 2011 - 19:38
avionics instrument, motor
Hi Chuck-Rowst, thanks for your explanation. Do you have any information about the motors used in this unit ?
Thursday, 18 August 2011 - 20:18
avionics instrument, motor
Hi Chuck-Rowst, first of all I know nearly nothing of avionics. With sin and cos signal I mean the two Voltages have a phase difference of 90 degrees. Like shown here: http://de....
Thursday, 18 August 2011 - 16:19
avionics instrument, motor
Thanks for all the hints ! There are two typs of motor/synchro things. One type is labeled "MUIRHEAD Synchr control transformer" It has a three wire primary 11.8V, I suppled 400Hz...
Thursday, 18 August 2011 - 15:32
Recommended Spectrum Analyser
I own a HP3585A for 0..40MHz, so a low frequency analyser. But it has 1Hz frequency accuracy and goes down 3Hz filter bandwidth. I love it! :lol: I think once you have a god...
Monday, 30 May 2011 - 19:30