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Driving 24v solenoid with boost.
awneil wrote: Mr.Paul wrote: for sure (sic) it does not have enough energy, No, that's just a hypothesis.   It's probably quite a good one, but still just a...
Friday, 29 June 2018 - 12:53
Driving 24v solenoid with boost.
DocJC wrote: It would also be helpful to see an O'scope pic of the 24V pulse provided by the step up circuit, to validate that it has enough energy to power the device for 20 mSec...
Friday, 29 June 2018 - 01:48
Driving 24v solenoid with boost.
Kuch wrote:Do you have caps on you chips power pins? You mean decoupling caps? Yes. It went badly without them :)
Friday, 29 June 2018 - 01:46
Driving 24v solenoid with boost.
avrcandies wrote: I wonder if the +5V supply is sagging enough on the surge to make the 754410 cut out? I'll scope that out Is the battery pack also supplying the logic 5V?...
Friday, 29 June 2018 - 01:13
Driving 24v solenoid with boost.
awneil wrote: exactly.   look at all the voltages.   are they doing what you expect?   any that are not - investigate further.     If they were doing...
Thursday, 28 June 2018 - 20:00
Driving 24v solenoid with boost.
awneil wrote: I'd just look at voltages first ... Hmmm... that gives me an idea. I wonder if the +5V supply is sagging enough on the surge to make the 754410 cut out? I'll...
Thursday, 28 June 2018 - 18:30
Driving 24v solenoid with boost.
ki0bk wrote: Perhaps the cap needs to be charged to a higher voltage then 24v, what is the voltage rating of the cap (2200uf) in the Orbit system?   25V. Because they are...
Thursday, 28 June 2018 - 18:09
Driving 24v solenoid with boost.
awneil wrote: This is where you really need a 'scope to see what is actually happening.     I have a scope, though even a 1 ohm resistor in series with the solenoid...
Thursday, 28 June 2018 - 18:08
Driving 24v solenoid with boost.
ka7ehk wrote:   Now, the fact that the Orbit system works from AA cells suggests that the control solenoid inside the valve might not take so much power. And, the idea that...
Thursday, 28 June 2018 - 18:05
Driving 24v solenoid with boost.
There is no valve data sheet, it is a consumer product. One of these:    https://www.amazon.com/Pack-5887...   It is, in fact, 24V DC, not AC. These are not the...
Thursday, 28 June 2018 - 17:44
Atmel Backend very very slow....
Ok, rolled back to Windows Version 10.0.16299 Build 16299   Everything is responsive and good again. So, something to do with  Windows 10 Version 10.0.17134...
Thursday, 21 June 2018 - 02:11
Atmel Backend very very slow....
Oh, and out of the blue, KB3095681 on that day to, for VS2015; that update is 3 years old, why did it suddenly get pulled?
Thursday, 21 June 2018 - 02:01

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