Here are the first versions of the cheatsheets I've been making. These are meant to be used as quick reference guides for any electronic/electrical project.

The cheat sheets I've come up with are the following:

- Basic Operational Amplifier Configurations
- Capacitors
- Ohm's & Watt's Laws

Here's a preview of the first one:

The Basic Operational Amplifier Configurations cheat sheet contains the schematic diagram and transfer function for each of the following configurations:

- Voltage Comparator
- Non-Inverting Amplifier
- Inverting Amplifier
- Voltage Follower
- Inverting Summing Amplifier
- Differential Amplifier
- Differentiator Amplifier
- Integrator Amplifier

To get this cheatsheet, follow this link.

Here's a preview for the the Capacitor cheat sheet:

This cheat sheet shows how to read the tolerance, maximum operating voltage and capacitance in ceramic capacitors, provides a conversion table for capacitance. Just look up the codes for the tolerance and max. voltage in the corresponding table.

In addition, I've included a drawing of an electrolytic capacitor for comparison. They are certainly

**not**drawn to scale.
Get it here.

The third cheat sheet that I've been working on is widely available on the Internet, but since I wanted to have my own personal version, here it is: Ohm's & Watt's Laws.

They help you figure out quick and easy how to calculate current, voltage, power and resistance given two known electrical values.

To view this cheat sheet, go here.

I'm going to explain to you how to use this cheat sheet in case you've never seen this before.

Let's say for example that you want to calculate how much power (in watts) will dissipate a 470 ohms resistor connected to a 9 volt battery.

The resistor is 470 ohms. Therefore

`R=470\ ohms`

.
The battery is 9 volts. So

`V=9\ volts.`

Looking at the Watts (P) quarter in the circle (top left one), you can see that there's a formula to obtain P given V and R, which happens to be

`\frac{V^2}{R}`

.
Therefore

`P=\frac{V^2}{R}`

.
Substituting V and R in the previous formula:

`P=\frac{9^2}{470}=\frac{81}{470}=0.17\ watts`

.
And that's your answer.

Hope this helps anyone out there.

Any comments, suggestions, complaints and corrections will be

**very**appreciated.
Thanks a lot dude!

ReplyDeleteI hope you don't mind, but I adapted your work to my preference in colors and reposted the result on my blog, of course with a link to you.

http://devolrobot.blogspot.com/2011/06/electronic-cheat-sheet.html

Again thanks!

You are welcome!

ReplyDeleteGreat cheat sheets. I'm using them in my circuits class this term and probably in my electronics course next term.

ReplyDeleteThanks!!

That's great! I'll post it (once translated to French) on our FabLab's wall!

ReplyDeleteCool! Drop us the link here if you can!

ReplyDeleteI'm putting together a sheet for a Raspberry Jam I'm hosting this Sunday.

ReplyDeleteIs it OK if I include your Ohms and Watts Law graphic in the sheet.

Sure thing!

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