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HI
No your approach is not the RMS value.Your idea to make a precision rectifier and flter the signal is a very good start point.
But do not use a large filtering, because of if you do that you are going to decrease frequency response.The output signal of this circuit(precision rectifier...
Hi
Yes you can replace the trimpot for a multi turn type with the
same resistance value.If you can not read the value of the trimpot , take it out
and measure the value with your multimeter.
Best
Hi all
I don´t know much about this issue, but a differential spiral inductor increases the Q Factor and the bandwidth
compared to a linear one.
Best Francisco
Hi all. Not ever is necessary using a switching DC-DC converter.
LM¨2576 3.3 type HV can make the job.You have not answered how much power do you need.For this CI 1A is guaranteed.
Datasheet avaliable at ALLDATASHEET.COM - Datasheet search site, Datasheet search site for Electronic Components...
Hi Keith.
I agree with , great circuit.
I´ve just implemented a real circuit and it works like a charm.
I´ve replaced LM741( I don´t have one) by Ca3140 and +/-3 by +/-5.
SO the circuit works.
By the way, do you know anyone that could help me in my thread...
Hi all
I have this working in Proteus 7.7.This circuit generates an output of 0 to -5v.Put an inverter in the output.........
Of course it may need some litle adjustments in the resistor values, and a fet input opamp like like CA3140, and an offset adjust to work in the real world.It is not a...
Hi all
There is no way to specific a model for many components in proteus.It is because of proteus doens´t have a simulator
models for these components.Pay attention when you select some components at the upper right side of the popup screen
proteus shows the model type it have for the...
Hi all
I work in a company that makes electromedical equipments. To be aproved all of our products must pass a series of tests, EMC, insulation(4KV), mechanical and ground connection resistance as well. The resistance must be in the range of mili Ω. To measure this we use a equipment that...
Hi all
Look, this is a very simple circuit . I place this just as a start point to your project.
It is likely you need much more precision.
Best Francisco
Hil All
The photo trasistor is a infrared Type(receiver).To maximaze sensitivity you should use an infrared diode instead of a white led.
Take a look in the figures for the white led(pag 6) and the photo transistor(pag3) you will see the peak emmission is at about 460nm for the white led but...
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