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Hi Guys,
I am currently working on a heart rate monitoring device for a university module. currently from my research, I found out that human biosignal is extremely low e.g. typically 100Hz Vp of 10mA spike.
In order to capture this signal for sampling, I will need to design a Differential...
Hi,
Sorry to ask, I have come across some word use in the datasheet and AD654 Voltage to Frequency Converter, in the datasheet it stated Low Power Quiescent Current and Low Offset Voltage. Can anyone elaborate these 2 terms to me in a layman terms as the information I search online is a bit...
sorry for the poor illustration... think this one would be a better one... i intent to pump in a negative DC voltage... and hope to achieve a -1.25Vdc at the load...
Hi everyone,
I would like to ask about some questions which I am not sure of, am I right that the voltage across the RL is -1.25Vdc with a supply voltage of -4.05Vdc with the diodes arranging in such a way?
snubber diode motor
Hi everyone,
I have come across a circuit configuration which of a vibrator motor circuit.
I would like to ask one question, why is there a need to place a 1N4004 snubber diode across the emitter and collector?
I would like to know the analogy by placing the snubber diode...
hi kender,
Yap its a single layer routing only the bottom layer.
hi dmk,
Thanks I will try that out...
Added after 7 minutes:
hi dmk,
i have tried that, 1st i select the pin icon from the rows of icons, then i select the pin which i wish to disconnect, then i select the tool tap...
Hi everyone,
I have successfully importing a duplicated version of my 100% route to the file. the but still another problem arise, after importing there are some connection automatically generated.
If there a way to manually remove the unwanted yellow connection and remove some of the...
orcad autoplace
hello all,
I have done some research online and know that OrCad 10.5 has this function known as auto Place board. From my understanding is that this function will help you place the components on the board which you have drawn.
The problem I am facing is that I tried to find...
may I know how I where I can locate this feature in OrCad 10.5?
i'm new to this so there is many functions which I have not explore. Is this functions come in the original package of this software or something like an add on?
If it is like a add-on features or a plugin, where can download this...
specctra auto router
Hello everyone, currently I am doing a PCB design and it is very messy with over 50 components and I only want to achieve button route.
Any advice on how to place the components/setting or any strategies/experience/tips which you guys like to share to achieve a complete...
Hello Fom , DrBob13 & laktronics, thanks for replying.
I'm so sorry as the electronic terms used is too technical, I am not really very sure about the AC ridding on DC theory.
I have make a picture using waveform to illustrate what everyone have said but not sure if the picture drawn was...
hello anyone just need to clarify some questions below is an example of the connections
The question is, what will I get from Vout when I have a AC input parallel to a DC input?
lets assume that my AC input has a frequency range from 20Hz to 200Hz with an amplitude of 0.4V, what will I get at...
I have understand that dual voltage regulator LM317 & LM337 the Vin range is Vin - Vout = 5V
Which means in order to get a stable 5V output, my min Vin must be Vin - 5V = 5V
Vin = 10V
so the Vin must be equal or more than 10V to have a stable 5V...
Hello everyone,
I have a schematic diagram here showing how to build a dual voltage supply of + and - 5V using LM317 & LM337, just to ask, what is the minimum and maximum range input voltage for this 2 IC chips?
i will be using a 9V battery, is it possible? and i would need to know the...
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