How to Build a Circuit from a Circuit Diagram | Part 4: Operational Amplifiers

[@johanan1186]

I was so lost, but you’ve made this so easy to understand. Thank you.

[@PoboyMusic]

I love this series

[@chrisegonmusic]

These are so useful. Surprised it doesn’t have 1m views ❤

[@TrinaTat]

I had everything connected like yours . But the oscilloscope display is a square wave despite choosing sine wave. All the numbers displayed on other equipment, including the DMM, were the same as yours. Can you advise?

[@samelec-cl7nw]

1st video in the series where i'm genuinely confused lol but at 10:14 why is it common knowledge at this point that the oscilloscope and function generator also need to be connected to ground? one could easily assume that both the FG and oscilloscope are separate individual machines, hence not needing to connect to ground. and considering as well that thus far every ground connection was represented in the schematic, this really confuses me :D is it also just common knowledge/implied that whenever interacting with a circuit from "external sources" (FN & osc. in this case), that they all need to share the same ground? what am i missing here?

[@BenFinio]

Voltage is always measured between two points and ground is your reference level where you define "zero" voltage. In theory you could connect an oscilloscope between any two points in a circuit but you'd be measuring the voltage between those two points and not necessarily relative to ground. This playlist may help understand some of the underlying circuit theory, particularly video 21 about ground: kzbin.info/aero/PLKL6KBeCnI3U6KNZEiitdtqvrxkBhpuOp

[@samelec-cl7nw]

@@BenFinio thank you, will definitely go through this! really like your style of explaining things

[@orveahava]

Excellent!!!

[@skeome]

How would you make an Op-Amp circuit? I've seen somebody make one with 7 resistors and 4 transistors on a pcb, but my brain is still having a hard time translating the diagram to a breadboard, though I haven't looked at the circuit since I started watching this series and it might just click when I do, after the next video Edit: I was able to read the circuit, and I've translated it to a breadboard, but I'm confused about the VCC, VEE, + in, - in, as well as out. Resistor 1 (1k) connects to VCC resistor 5 (1k), then to the collector of transistor 1(NPN). The base connects to + in, and the emitter connects to resistor 3 (1k), which connects to VEE. Resistor 2 (1k) is connected to VCC and the collector of transistor 2(NPN). The base connects to - in, and the emitter also connects to resistor 3. Resistor 4 (200) is connected to VCC and the emitter of transistor 3(PNP). The base is connected to capacitor 1 (100pF) and resistor 5. The collector is connected to the other end of the capacitor, the base of transistor 4, and resistor 6 (51k), which connects to VEE. The collector of transistor 4 (NPN) is connected to VCC. The emitter is connected to resistor 7 (1k), which goes to VEE I'm just not understanding how to connect +/- voltage, as well as VCC and VEE

[@demexd]

This is hard to understand since English isn't my first language but i really appreciate it :)

[@sorinjayaweera8751]

great, thanks!

[@OluwatunmiseOwotomo]

Hello, could you do a video on how to connnect AD1106 or AD1107 mosfet when building a differential amplifier?

[@BenFinio]

Hi - I don't have plans to add a video like that at this time, but I'm sure you can find one on KZbin somewhere.

[@daz41262010]

super video :)

[@nathanlee4320]

Ur my goat