TTL Open Collector NAND Gate: Circuit and Working

[@EngineeringFunda]

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[@EtsyStore-j6h]

This was Complicated to Understand at First but after watching your video it feels Super Simple ! Thank You Sir !

[@EngineeringFunda]

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[@snjy1619]

00:01 Understanding TTL Open Collector NAND Gate circuit 00:55 TTL Open Collector NAND Gate is an integrated circuit 02:01 Implementing and understanding the working of TTL open collector NAND gate 03:03 Description of equivalent circuit of a transistor in the form of diamond 04:33 Understanding the input combination of TTL open collector NAND gate. 06:17 TTL Open Collector NAND Gate operation 07:28 Torch light will come in reverse bias at the base collector junction. 08:30 TTL Open Collector NAND Gate in detail

[@afiamahzabin5033]

How is it different from basic ttl? Here the open collector is connected to a 5V battery which is equal to be connected with the remaining vcc an a pull up resistor. Then what is the difference from basic ttl? I cannot understand! :(

[@mohamedamineromdhani9953]

there is cases where we can only use an open collector Gate. for example when connecting two outputs together. first connect them then add the pull resistor. the purpose of that is to avoid damage in case one output is high and the other is low (they act like you're connecting plus pole to minus pole). hope the example helps

[@virt_tech566]

I understand real well . Thank u for teaching.

[@EngineeringFunda]

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[@ajaybooram6862]

​@@EngineeringFunda4:25

[@shivannarasareddy1931]

Excellent teaching sir

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[@Baannoanjum]

Two friends discuss about exam fear Third come no fear when engineering funda is here 😂 Thanks a lot sir detailed teaching😊😊😊

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[@nimeshraijada5844]

Nice explanation 👍

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[@aside3636]

thanks sir for such nice content

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[@naguchintha7281]

Super sir nice content

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[@SaurabhKumar-gc1ko]

How is base collector reverse biased at 5:31

[@wangariwangai2049]

From my understanding, the supply voltage Vcc supplies voltage to b1. Since no voltage is actually being supplied at the input, by default the B-E junction is forward biased(as it always is). Thus, current flows through it, and since the voltage is above Vbe(sat) B-C junction is reverse biased.

[@wangariwangai2049]

Recall that when in active region, one transistor junction is always forward biased and another reverse biased. I hope I made it clear

[@MarsCury95]

Nice video sir

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[@CharlesMasolwa-k3p]

Ur so amazing

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[@vikramsimha70]

Thank you sir

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[@rolichandra4692]

why does phase splitter section is called so?

[@smartboyanjiyadav2198]

Sir u missed one topic ECL ( emitter coupled logic) i want it's video 🙄

[@rajeevtiwari4239]

Thank You

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All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us. Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏

[@AHMED0320]

what is the benefit of the open collector ? thnx

[@mohamedamineromdhani9953]

there is cases where we can only use an open collector Gate. for example when connecting two outputs together. first connect them then add the pull resistor. the purpose of that is to avoid damage in case one output is high and the other is low (they act like you're connecting plus pole to minus pole). hope the example helps

[@venkateshvenkey1310]

👍👍

[@EngineeringFunda]

Your positive comments motivates me. Teachers like me just wants positive comment from student. Love from you guys means a lot to me. My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.

[@CharanMangam-n6u]

Telugu lo chepparah please

[@EngineeringFunda]

I don't know this language

[@nagarapusaicharan185]

.