A few questions regarding capacitors and solar cells... - Electronic Circuits Projects Diagrams Free

thebigbasicq · 21st April 2003, 05:17 AM

1. What does 100n mean with reference to a capacitor?
2. Will I get a readymade inductor if I specify it's value(say 100uH)
3. In the following figure 'Out' is showing only one terminal of the audio out. Where should I connect the other terminal of the headphones?
4. What does a 12x solar panel mean? Does it mean that it has 12 solar cells attached? or It must give an output of 12Volts?

Thanx

Sebi · 21st April 2003, 08:09 AM

100n=100nF=0.1uF
Headphone other pin connect to positive supply, and must be a high impedance type (1...2kohm)
The coil can be handmade on small ferrite.

Chippie · 21st April 2003, 10:42 AM

Quote:

Originally Posted by thebigbasicq

2. Will I get a readymade inductor if I specify it's value(say 100uH)
Thanx

If its a preferred value, you can purchase a ready made inductor..

100microhenries is a preferred value, getting one shouldnt pose any problem......

droid · 21st April 2003, 03:23 PM

Quote:

Headphone other pin connect to positive supply, and must be a high impedance type (1...2kohm)

are you sure? i always thought the other pin was connected to ground

Sebi · 21st April 2003, 04:01 PM

Yes, droid sure, because this is not a push-pull output.

thebigbasicq · 21st April 2003, 06:18 PM

Which wire do i use? How many turns should i have? How do i know what i have made is an 100uH coil?

john1 · 25th April 2003, 08:45 PM

Hi thebigbasicq,

Here is a capacitor equivalents calculator.
You can download it for free at Moyer Electronics.
http://www.moyerelectronics.com/index.html

I'm not impressed with it,
using 1.5 megabytes to move a decimal point
is not my idea of good programming.
I dont like the layout much either.

But there you go, it should do just what you want.

Regards, John

Phasor · 26th April 2003, 01:57 AM

Quote:

What does a 12x solar panel mean? Does it mean that it has 12 solar cells attached? or It must give an output of 12Volts?

Not sure... what is this in reference to?

Quote:

Which wire do i use? How many turns should i have? How do i know what i have made is an 100uH coil?

This is a good inductor simulator, which will give you the diameter, number of turns etc, for an air-core coil.

http://www.oz.net/~coilgun/mark2/inductorsim.htm

thebigbasicq · 26th April 2003, 02:50 PM

charger. My questions are:
1. Can I use a bead type 100uH inductor?
2. The circuit of the Solar Ni-Cd charger requires a 12x solar batteries. What does that mean?

I am attaching the circuit.

Thanx

thebigbasicq · 26th April 2003, 02:50 PM

charger. My questions are:
1. Can I use a bead type 100uH inductor?
2. The circuit of the Solar Ni-Cd charger requires a 12x solar batteries. What does that mean?

I am attaching the circuit.

Thanx

thebigbasicq · 26th April 2003, 02:53 PM

21st April 2003, 06:18 PM	(permalink)
thebigbasicq Experienced Member	If i want to make an 100uH inductor, how do i go about it? Which wire do i use? How many turns should i have? How do i know what i have made is an 100uH coil? __________________ U.S.S.R.

26th April 2003, 02:53 PM	(permalink)
thebigbasicq Experienced Member	Oops I just posted twice(sorry!)[no text] .. __________________ U.S.S.R.

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21st April 2003, 08:09 AM	(permalink)
Sebi Experienced Member	100n=100nF=0.1uF Headphone other pin connect to positive supply, and must be a high impedance type (1...2kohm) The coil can be handmade on small ferrite.

21st April 2003, 04:01 PM	(permalink)
Sebi Experienced Member	Yes, droid sure, because this is not a push-pull output.