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The Garmin, you can power through the USB connector, but it doesn't act the same as thru 12 V power. There are two cords. One with the traffic stuff and one without. You can always canibalize a cord and put on of the other ends that I reccomended. in fact, you should try to pick up a socket (the one with the lock) and a plug. The socket would have the waterproof cap. My list of devices might include:
1. Vid camera
2. GPS - with/without traffic; th former is tough to deal with.
3. Cell phone - lots of charging issues depending on model. The only constant is change here.
4. Helmet headphone/mic system (Wireless/Wired?)
5. Short range communication receiver/transmitter
6. Audio/Radio
**broken link removed** ignore me I'm tired, I just had a play, even found out that those other buttons next to the A/B move em up & down, but I was thinking **broken link removed** how do you know where they are going to stop, they were moving that fast, getting dizzy, I hit stop.....relief for my poor eyes....then I thought, hold on.......yep, they still move when signal is stopped.......now it makes sense **broken link removed** Ignore me, I'm tired
I did TRY to describe a REAL scope and thus the probes mean extra capacitance. The extra capacitance makes a high frequency circuit do different things, hence the probes have to attenuate. Divide by 10 etc. This stuff doesn't apply to the virtual scope.
CHA 1, CH2 or CHA or CHAB etc depend on the scope and what they call it.
The Virtual scope has measurement functions:
A: <name>
The XA and XB should be positions, but something doesn't look right. The DX comes from dx or the derivative symbols or a delta X; Note that XB-XA is DA. The idea is to position cursors on the trace to measure times and voltages.
I did TRY to describe a REAL scope and thus the probes mean extra capacitance. The extra capacitance makes a high frequency circuit do different things, hence the probes have to attenuate. Divide by 10 etc. This stuff doesn't apply to the virtual scope.
.
CBB
I did download LTSpice, but don't know how to use it/them?
Graham (DC & AC coupling and other bits)
suppose we had a signal v(t) = A + B*Sin(C+ωt); also assume that the x-axis is the zero reference.
ω = 2∏f where f is the frequncy. ω is called the radian frequency.
C = a phase shift component in radians
B = is the 0 to peak value of the sin wave, so 5*sin(ωt) has a peak to peak value of 10 volts.
The center of the displayed wave would be at 0 volts (+-5 V)
If the signal was now: v(t) = 10 + 5*Sin(ωt) and:
AC coupling: the center of the waveform would be at 0 volts.
DC coupling: the center of the waveform would be 10/2 = 5 + 5/2 = 2.5 or 7.5 V
Th scope will show that. A 10 v p-p sine wave riding on a 10 V DC level.
The phase C is important, when you have multiple signals, but for a single sine wave, it moves the zero point.
EEK! I haven't even had time to getting grips with yours yet.lol
Slow down fella, although you could explain why there are different waves *confused*
KISS, I tried LTspice as well, couldn't work it out, TI is way to go
EEK again, CBB can you translate that onto the sim that I'm about to work on so I understand it, man, I feel a very interesting morning is coming up......panic, me,erm yep.lol
The Garmin, you can power through the USB connector, but it doesn't act the same as thru 12 V power. There are two cords. One with the traffic stuff and one without. You can always canibalize a cord and put on of the other ends that I reccomended. in fact, you should try to pick up a socket (the one with the lock) and a plug. The socket would have the waterproof cap. My list of devices might include:
This was the lead Im using however I cut this box out of the middle of it as Garmin said dora worked on 12v, so now it looks like this, although the socket has been moved to the other side to make room for my powerlet socket
Al charger leads that have these pcb in ciggy socket seem to work on 12/24v, the 24v bit I dont need, so are they mainly to get steady voltage rather than spike suppressors
so we basically have some 12v units, autocom, just mentioned, oiler
Dora the expoler
Bluetooth module
then the camera & phone on 5v, as you can see even the oiler is electronic, so I had choice of a million connections to the battery or choose to put them somewhere out of the way, then the ciggy chargers are just too big & if there main function is so people can use them with 12/24v, I don't really need that part, however I would like the system to be interference free & protected.
Then the 5v side of things adaptable in case I ever change units, one power supply made right, using switchcraft sockets, if leads have to altered on the units then so be it
now to learn about AC **broken link removed** just looking at sim CBB
This is going to be interesting, just noticed it is AC & DC, Ill knock sim up but then expect a million questions **broken link removed**
Ok, Im restraining myself, sim up & running, I shall do the other bit first before asking
so your saying ther DC side of things, the waves runs 0.33v above the line like this, I'm still resisting bombarding you with questions until I've finished, apart from how are you measuring them, are you exporting data to get the graph like me or is there another way?
ok, first understanding:
DC & AC can run at the same time but Dc is on an elavated signal compared to running DC off a battery
questions from your sim:
Is it my computer or have all my images just dissappeared?
Need to get ready for work now so will ask questions tonight now
Just checked on phone, images have gone?
CBB
Type: photobucket into search, then type: Mutley41 into its search bar
Look under: camera & dora folder, click on first image
Your answer is there my friend
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