Just to keep things clear here-
30revs/sec*360°/rev=10,800°/sec. That's 10.8°/millisec. Not sure how you came up with 12°.
Too right. Sorry. Sloppy.
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Just to keep things clear here-
30revs/sec*360°/rev=10,800°/sec. That's 10.8°/millisec. Not sure how you came up with 12°.
Which diagram?Hello again, This is important: in your diagram, what would the voltage be across R3 if the pot U2 was 100Ω, ie 0.1 of the 1kΩ in the diagram and the source voltage V1, instead of 36 V, was only 18 V?
Because that voltage>current is the minimum to open the bleed.
Which diagram?
Please post the .asc file so we can see what you did.I ran several simulations using the diagram in 13, pn transistors, and again with a FET and both gave approximately the same square wave with the same current rise time, but the quickest current decay was with 3 1000v, 6a diodes in series with the inductor, 160 μs, with 2, 165 μs, with 1, 172μs, worst was with a shunt diode, decay was as slow as build up. A snubber appeared to be good, reduced the oscillating.
Time starts at .1ms, Current flat lined at 4.43A after 4.211ms, at .2ms current was 897ms, at .3ms - 1.61A, .4ms - 2.19A, .5ms - 2.64a, .6ms - 3a, .7ms - 3.3a, .8ms - 3.5a, .9ms - 3.7a, 1ms - 3.85a
I'm tired, think I'll go to bed!!
g'nite
I ran several simulations using the diagram in 13, pn transistors, and again with a FET and both gave approximately the same square wave with the same current rise time, but the quickest current decay was with 3 1000v, 6a diodes in series with the inductor, 160 μs, with 2, 165 μs, with 1, 172μs, worst was with a shunt diode, decay was as slow as build up. A snubber appeared to be good, reduced the oscillating.
Time starts at .1ms, Current flat lined at 4.43A after 4.211ms, at .2ms current was 897ms, at .3ms - 1.61A, .4ms - 2.19A, .5ms - 2.64a, .6ms - 3a, .7ms - 3.3a, .8ms - 3.5a, .9ms - 3.7a, 1ms - 3.85a
I'm tired, think I'll go to bed!!
g'nite