goldsmith
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Yes that is !In post#1. C3 is feedback capacitor?
The capacitor uses to bypass RE. The value of this bypass capacitor may be equal or bit lower in value to the feedback capacitor. Is that are you trying to say?So most reasonable value for that , is equal to the value of fed capacitor or a bit lower .
I know how to calculate value of RE. But if you are saying it is waste of time then my reply is positive too.it can be something between 47 ohms up to 470 ohms . ( however we can calculate it , exactly , but it is a bit time consuming and hence each designer prefer to don't waste time)
You suggested 180ohms or 220ohms, these values are limited to this circuit which we are discussing here right now, or it is for every circuit in which RE is to be bypassed?ence we can randomly choose it between those values and see the result or using a potentiometer with that value to calibrate it . so for my suggestion a 180 ohms or a 220 ohms would be ok for you .
Yes but it is not a complete AC bypass . it just will bypass a little of it !The capacitor uses to bypass RE. The value of this bypass capacitor may be equal or bit lower in value to the feedback capacitor. Is that are you trying to say?
No it's calculation in this case is completely different . it isn't like designing a simple class A stage .I know how to calculate value of RE. But if you are saying it is waste of time then my reply is positive too.
You can test this oscillator with these values for frequencies nearby 1GHZ , easily .You suggested 180ohms or 220ohms, these values are limited to this circuit which we are discussing here right now, or it is for every circuit in which RE is to be bypassed?
Yes bro, I have understood this.Yes but it is not a complete AC bypass . it just will bypass a little of it !
Thanks for clearification.No it's calculation in this case is completely different . it isn't like designing a simple class A stage .
Are you referring to the oscillator which we designed tomorrow? If so, we designed that for 100KHz frequency and on the behalf we chose value of feedback capacitor, tank circuit.You can test this oscillator with these values for frequencies nearby 1GHZ , easily .
No No No ! don't confuse ! i told you can increase it's frequency with these values of ZE . but i didn't tell that you are working at 1GHZ ! i told it is possible . but not for you ! you will need more experiences for those very very high frequencies .If I test with 1GHz frequency then will I have to calculate all those values again?
I don't understand exactly what does initial values mean.
Hi EshalActually we had subject named "circuit analysis". We have 6 month a semester. Our teacher was too lazy or too fast, I don't know what should I say about her. She took 4 and half months for DC analysis and 1 and half month for AC. She covered DC part in detail but very fast, she had done cover 36 to 40 slides on projector in 40min class. So I assume you can imagine how our teacher teaches us at university. They consider us jackass and load us with lot of stuff for whole semester. We have no time to practical anything for our self.
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