modified 6 years ago

Can someone explain the theory here.

00:39:29

I'm still relatively new to this, and didn't have any specific goal in mind, just "doodling" persay. But I'm not new to electricity and I'm just not able to grasp how you can get 100 amp 10kv output from a 10VDC 8 milliamp input. I don't need depth, just basic principal please, and thanks.

published 6 years ago

maddbuzz

6 years ago

check OpAmp properties - it's powered from +10 & -10 kV sources

maddbuzz

6 years ago

(but those sources not shown here)

awest091

6 years ago

Thank you

2ctiby

6 years ago

A real op-amp needs to be connected to an external power supply. The EC op-amp here has a built in power supply, as set by the +- settings. It can be a real pain to use on EC sometimes, when it uses its own power instead of your circuit design where you want it to be powered/switched from a different source. Also ... using kV, MV, or GV etc in a simulator for normal breadboard stuff to light a lamp etc, may be fun, but not generally practical.

awest091

6 years ago

ight, 2c I understand that 10kv 100amp circuits shouldn't be connected on a breadboard 😂 but thank you for the detailed explanation. I was always confused by the opamp component due to its schematic symbol alone. But thanks again

2ctiby

6 years ago

You're welcome. I wasn't suggesting that you would ever really use GV on a board etc. The thing I had in mind was that occasionally, a new user will suggest that the EC simulator is useless when they see what it can do in theory, compared to realistic practical application.

crake

6 years ago

Op amps are great. They can be had in many shapes and sizes. You can get them for precision aplications, pretty high bandwidth, audio, super low power, single supply nearly rail to rail output, etc. The can be combined to produce instument amps, or used as difference amps, inverting, noninverting, or unity gain. They can be configured to perform math functions as well. Op amps are really cool. One of my favorite components for sure.

crake

6 years ago

Here is a fun example of some math with an op amp. It performs y = mx + b. In this example it converts degrees C to degrees F. Fun stuff. http://everycircuit.com/circuit/5571313996660736

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