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Hi - i read your topic.
yes it can be because of time delay - usb fifo size...
First i would check if your connection is working from pc side.
Did you check loop back by connecting pin 2 and 3 at the profilic db9 connector.
If connection is stable to this point you should see the sign you...
Hello,
as mentioned above, I need a schematic of Ademco / Honeywell 4100SM serial interface or the schematic of a compatible interface. The connection to the alarm base station semms to be a serial interface, but I am not sure about the level converter and about the question if the signals are...
Hello Barry
many thanks for your answer.
2.) i could not measure the current - because a +/- Ac signal in a range of +/- 5V is applied to one of the wire by high impedance- with 24 V connected ac test voltage the signal is destroyed
3.) sorry - confidential..... could not explain more
solid...
Hello,
some advice is needed
Old system (see picture):
1. a heater is connected to power (24 V) by 2 relays as shown in the circuit.
2. later the heater is disconnected for short times from power
3. ac voltage of 5 V is applied
4. the current of the voltage is measured for detection
5...
It should be a polyfuse.
please go to this link for the picture of the polyfuse....
https://il.farnell.com/te-connectivity-raychem/nanosmdc150f/polyswitch-smd-1206-1-5a/dp/1345945RL
Datasheet.......
**broken link removed**
polyfuse are resetable fuse...
In my company we think about the developing a reader for passive SAW Tag (resonator type not delay line type)
The target frequency is in the 430MHz range.
Its my task do develope this reader.
If someone have som tip /schematic which can be shared it would be helpfull.
At this time i'm in the...
New Firmware is available.... it looks interesting --> update mechanism/firmware/config file analysing would be the next step
download_link can be found there -->...
Hi - i opened my defect Accu - and i see inside is a much of electronic.
If i use my laptop with my accu pack it is said that it is not possible to load the accu (at this time it has 55% ). Also if i revove the power supply - it switched of...)
If i test my opened Li-ION Pack directly with some...
Hi i get my digital Picture Frame - at first i opened - and it looks really interesting.
I want to change somethings in SW which did'nt make me happy.
But i didnt get any Info /schematic about the Picture frame or the MCU - AML6229D - Wich is one Part of the AML622x Family...........
Also i look...
Hi at first -
I wait to get my cr5000 training in my firm for the SystemDesigner.
But this take some Time - thatswhy i search infos and tutorials about zuken.
(the best would be about both System and boarddesigner)
the second part - i ask me if is possible to freeze placing and routing of...
voltage controlled current sink
@IanP
source current - sorry for my wrong desscription - im a beginner in analog design and not so good
this is the schematic - i modified a little bit since i write there.
What happend if R_load has a inductive part - and what should i do to that this circuit...
mosfet current sink
Hi - I'm in troble - i have to design a current sink which should load a resistor with a resistance of 0,1R.
the resistor is connected to gnd.
The current sink should be variable from 0A to 6A.
I try to design a circuit but if i test this in Pspice i get the result that...
flyback smps design
I need to design a smps module with this requirements:
Vout : 1V - 60V
Iout: 2A
Voltage must be isolated - Viso =1 KV
The supply voltage is not specified at this time.
At the end i will use 5 smps - modules to get 5 independent adjustable voltage in a range fom 1V to...
hi,
i look for a dc-dc converter with a isolation voltage of 4 kv or better.
the input voltage is in the range of 7V - 15V.
the output voltage should be 5V.
it would be nice if the converter has small dimensions.
Have someone a recomedation which firm produce such parts?
Anything will be...
tektronix diag fail ++acq
hi - i have a defect TDS 420 - someone can get me some repair help?
At first - most off the time if i powerup the scope - i see nothing on the screen - but i hear the fan and all of the Front-panel LED's are on.
Atr next i maked a cable for the terminal mode of the...
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