Nick Johnson over at Arachnid Labs wants to giveaway a few decks of circuit patterns trading cards. Each card has a schematic and short description of a common circuit pattern in electronics. Topics covered include digital, analog, and power electronics.
He’ll give these away to 3 random commenters, just leave a comment on this post with a circuit pattern you’d like to see explained on a card and win a deck!
For more information visit the project’s site -Arachnid Labs. It’s also up on Tindie.
Here’s a few example cards. The ubiquitous resistor divider, of course:
capacitative voltage doubler, from power electronics:
If digital’s more your style, there’s the SR latch:
I would like to see oscillators explained. I know basically how they work but don’t always remember the math behind them.
Thanks
John
I really want this deck, I can’t decide what circuit pattern I would like on a card but I’ll definitely create some rules to play with them!
Ooh – great idea! A simple high and low pass filter would be good. I’m always getting those the wrong way round for some reason! :o/
I’d like to see a buck boost converter circuit.
Any opamp circuit will do. :)
Santosh
I’d like to see simple discrete low/high/band-pass filters!
A diode ladder filter would be nice!
voltage doubler
Great deck! Love to have it.
Would be nice to see some 555 timer circuits.
And maybe different configurations of opamps.
Would like to see some audio amplifier circuits, maybe some RF circuits for basic AM radios.
They look really nice. Handy for all the stuff I forget regularly…
Darlington
Damn cool stuff. Learning some electronics with my 7 yr old son, he’d love these!
Power to the circuits, let the matches begin!!!
Push-pull and open drain comparision
simple (BJT, zener) voltage regulator
Thats quite a neat idea, now I just need to figure out how to turn this into an actual game :)
Cool!
Hi,
Very nice
Logic gates have always been my pet peeve …
Oh i would love to have it that’s would be Christmas before Christmas …
Thank you very much for the challenge
Love the design of these cards and the idea. I keep a “little black book” with circuits like these. Quick to visualize and infinitely useful, its a great reference. I’d like to see a voltage reference based around a reference diode and a pot. Its a cheap, easy to build circuit, that has lots of uses in analog electronics.
The ZCS Network in half wave circuit from an Buck Converter, with detailed Formulas.
Differential pair
How do you play? Just kidding. They look very cool.
Filters, all kinds
Great idea!
I would like to see some examples of logic level conversion circuits.
sensor latching circuit
I wood like to see a logic level converter bi directional for i2c 5 to 3.3 volt
Great idea! I’d like to see voltage regulator patterns.
EMI Pi filters
Filters, basic 555 and opamps configurations, and maybe some theory behind transformers or a rectifier.
Cool design and great idea!!! Basics with op amps (inverter, non-inverter, sum,…) I always forget the right config!!!
The classic shunt voltage regulator:
http://upload.wikimedia.org/wikipedia/commons/c/c3/Voltage_stabiliser_transistor%2C_IEC_symbols.svg
Or the use of decoupling caps, that would be really handy for beginners.
Zero-crossing detector
I wouldn’t mind seeing a Colpitts Transistor Crystal Oscillator circuit
Op-Amp
I would like to have all varieties of RC-filters explained + formulas.
I also think there should be different Filters.
A full wave rectifier is such a basic circuit that I think it should be listed here.
Another nice one would be an R/2R D/A converter
H-bridge
Various op amp circuits and filters
These are pretty awesome. Being new to the electrical world, they’ll help me out a lot. I’m going to pick up a set whether I win or not. If I do win, I’ll take the set to school and leave them in the lab.
I also would like a few oscillators :)
Why not some Arduino pinouts?
Or voltage regulators explained like the LM317.
PWM > DC Using OpAmps or a RC Filter, R/2R ladder, Simple Transistor circuits with the matching formulas.
Nice idea!
I’d like to see discrete component voltage level converter circuits like http://www.adafruit.com/products/757
I’d like to see the current mirror!
I’d like some simple audio circuits: mic pre-amp, low- / high- / band-pass filters. Maybe a digital counter?
Ooh, those look very nice.
Switching regulators
Very nice idea!
So clever! I want =D
Constant current application of LM317.
Transistor Cascode, one of the most underappreciated uses of a transistor.
The answer is obvious: a Blinking led
Hey, you could design a Forrest Mims card game! So love these reminds me of many hours as kid spent over a breadboard with a homemade logic probe.
Brilliant idea – all we need to do now is turn it into a Top Trumps game!
If not already included, I’d ensure that all the “standard” op-amp circuits are included and basic RC and LC filters.
I’d like to see a filter circuit. Either a low pass, band pass or high pass.
A must have!!!!
A current mirror card would be nice!
How about lm317 regulator
My favorite and first circuit the 555 timer in an Atari punk console!
Nice! I’d like the some OpAmp based circuits (comparator, adder).
Pull-up/Pull-down resistor for a switch, super simple, but oh-so-usefull!
Maybe a circuit to measure Power with an Opamp.
555-based delay-off circuit. that’d be great!
What a great idea. What a easy way to learn some new stuff. I love it. I am at beginner level. Where can I buy this?
How about a tri-state buffer?
Any circuit related to EEG…
I’d love a set. Maybe using someone like drive-thru-cards and their print on demand to cut the cost down. $20 for a set of cards (after shipping) just cuts a bit high for me.
HF amplifier !
Nice idea !
I’d like to see more logic related patterns such as various antibounce or a simple schotky diode ESD protection like this one http://www.maximintegrated.com/images/appnotes/93/app093-1.gif which is so often forgotten in hobbyists projects.
How about the 555 timer?
The standard npn /pnp push pull Audio Amplifier stage
The RC snubber circuit
I make random comments !
I make random Comments !
I would want more logic circuits ! (sorry for the duplicate, pebcak!)
555 timer circuits and an H-bridge.
Now this would make for a fun game with the wife! Get your geek on!
What about a CMOS transmission gate?
Transimpedance amplifier with offset and gain ( like the ones used for photodiodes or strain guages)
Buck and boost converters
The cards already have those
I’d love to see some RF/signal cards:
– Basic transmission circuits: AM/FM; antena length; power;
– Signal reflection / terminal resistor;
– Digital transmission: ASK/FSK/PSK – analog circuitry to feed decoder specific IC;
(I think you can have a whole dec color only for this).
PLL’s
transimpedance amplifier would be great!
Boolean algebra :)
WOW these are amazing! What an wonderful idea
Since I have a digital background, any basic FET or OPAMP designs would be great!
I would like to see an h-bridge explained
haha this look awesome, hope I’m not too late.
parallel shift register applications. PWM. This are awesome if I don’t get them I would buy them anyway.
A category for RF circuits
1) different receiver architectures
2) transmitters
3) filters
4) oscillators
5) synthesizers
…
Another category for measurement circuits
1) voltage measurements
2) current measurement
3) LCR meter design
4) frequency measurement
…
I would like to see transistor bias explained.
Very nice.
Very good idea.
Clamping diode protection circuit, differential amplifier, high/low/bandpass filter.
Cool idea! A transimpedance amplifier for a photodiode would be great.
Great idea! Simple Touch Sensitive Switch Circuit.
Despite the danger of sounding like a newbie, I’m still confused by op-amps. So any cards with these beasties are great.
I would like to see an RS-485 circuit.
Neat concept. How about an “Ideal diode” circuit?
Great idea. Hope you could get the cost down and design more cards.
hope there’s a 555 timer.
The app version of circuit patterns trading cards is cool too, yet it’s cheaper.
https://itunes.apple.com/us/app/electronic-circuit-patterns/id750900228?mt=8