Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Help

Status
Not open for further replies.

DerStrom8

Super Moderator
Next time please use a more descriptive title. Often if people see a one-word title like "Help", they won't even bother to look.

What do you want your circuit to do? A circuit just means that current can flow out one side of the source and back into the other side, so you can connect the components pretty much however you want as long as it matches the criteria. In order to help you we really need to know what exactly you're looking to do. Seeing as capacitors, inductors, and resistors are all passive components, there's not a whole lot of interesting things you can do. Maybe look up "RLC Oscillator"?

Matt
 

audioguru

Well-Known Member
Most Helpful Member
A capacitor, an inductor and a resistor are passive devices. A circuit with only passive devices will do ABSOLUTELY NOTHING.
If you add a diode, antenna and ground then it can be a crystal radio. If you also add an amplifier and battery or power supply then it can drive a speaker. If you add an amplifier and battery or power supply without a diode then it can be an oscillator.
 

Ramussons

Active Member
A capacitor, an inductor and a resistor are passive devices. A circuit with only passive devices will do ABSOLUTELY NOTHING .
If you add a diode, antenna and ground then it can be a crystal radio. If you also add an amplifier and battery or power supply then it can drive a speaker. If you add an amplifier and battery or power supply without a diode then it can be an oscillator.

. . . . except form a Filter . . . :woot:
 

JimB

Super Moderator
Most Helpful Member
If you use a bit of lateral thinking, how about a capacitor start single phase induction motor.
The only "electrical" components in that are L C and maybe R.

JimB
 

DerStrom8

Super Moderator
A filter is also useless without a signal input. The "project" consist ONLY of a capacitor, an inductor and a resistor.

Hmm, are we being picky, or are we assuming the OP has a power source that he's planning to use?
 

Ramussons

Active Member
I would give the OP enough credit and believe that he wants to make a "black box" with only RLC components. :woot:
 

Colin

Active Member
A circuit with only passive devices will do ABSOLUTELY NOTHING.
Except produce the most amazing circuit every invented - the TUNED CIRCUIT.
The beginnings of RADIO
 
Status
Not open for further replies.

Latest threads

New Articles From Engineer's Garage

Top