Classic Circuits You Should Know: OpAmp Timer

Classic Circuits You Should Know: OpAmp Timer
6aGet 5 PCB's for $5 (plus shipping) - https://www.pcbway.com/

In this video we set up an LM741 OpAmp as a comparator. Then we feed the inverting input the output from an RC circuit. When the inverting input crosses the threshhold set by the non inverting input the OpAmp switches outputs.


All of my PCB designs are available from PCBWAY: https://www.pcbway.com/project/member...



My Amazon link: Anything you buy through this link helps support the channel, it doesn't cost you extra, and I make a few%. https://amzn.to/3706t6c
Yes!! I now have merch: https://teespring.com/stores/learnele... Electronics themed T-ShirtsIf you are shopping for electronic components, test gear or consumables please consider visiting my Amazon shop @ https://www.amazon.com/shop/learnelec...
Please check out   / learnelectronics   and pledge a dollar if you can. It will go a long way to keeping the channel alive. It costs a bit of money to buy all the items and produce these videos. You help is appreciated.
---------------------------------------------------------------------------------------------------------------------
Or....if you'd like to send a one-time donation you can use this link: paypal.me/learnelectronics
----------------------------------------------------------------------------------------------------------------------

Here is all the gear I currently use:
Oscilloscope 1: Rigol 1054Z https://amzn.to/2PRybtN
Oscilloscope 2: Siglent SDS1202X-E https://amzn.to/31Kk1yH
Power Supply 1: TekPower TP3005N https://amzn.to/2TeQnxI
Power Supply 2: RUIDENG DP50V5A https://amzn.to/2sNicSe
Signal Generator: JS2800 https://ban.ggood.vip/d9vk
DMM1: Owon18B https://amzn.to/2SbIGLs
DMM2: Aneng 8008 https://amzn.to/2sNQncI
DMM3: Aneng 8009 https://amzn.to/2S5qeEp
DMM4: Uni-T UT801 https://amzn.to/2S89SuL
Soldering Station1: Zeny (Yihua)862D+ https://amzn.to/2S49z4e
Soldering Station2: KSGR T12 https://amzn.to/2Wk7Dn9
Light Meter Smart Sensor AS803 https://amzn.to/2B2gyRg