WHAT IS A TUNED AMPLIFIER?
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From: jekob on 27 Dec 2009 05:37 I NEED A HELP ON A TUNED AMPLIFIER JUST ALITTLE LECTURE NOTES ON TUNED AMPLIFIER WITH BJT AND FET ALSO AND THIER GAIN AND EVERY THING ABOUT THEM
From: Jamie on 27 Dec 2009 10:48 jekob wrote: > I NEED A HELP ON A TUNED AMPLIFIER > JUST ALITTLE LECTURE NOTES ON TUNED AMPLIFIER WITH BJT AND FET ALSO > AND THIER GAIN AND EVERY THING ABOUT THEM Home work? Tuned circuits are those that use the active components like Transistors,board layout and such, capacitance to be included in the over all capacitance of which is in the tuned circuits around it. Inductance of these same components also play a role in the over all tuned circuit. With out this marriage of equality, you wouldn't see the high freq circuits that's been out for decades. Draw back is, there is normally a limited range of pass band per tuned circuit. Now, go on the net of open your books to get what you need for your home work. Its typical to find this kind of questioners on Sunday!.
From: pimpom on 27 Dec 2009 12:38 jekob wrote: > I NEED A HELP ON A TUNED AMPLIFIER > JUST ALITTLE LECTURE NOTES ON TUNED AMPLIFIER WITH BJT AND FET > ALSO > AND THIER GAIN AND EVERY THING ABOUT THEM "Everything about them" is too ambitious a question. One could write a long chapter or even a whole book about tuned amplifiers. Basically, a tuned amplifier is one that is designed to amplify only signals within a selected band of frequencies. For example, you may want to amplify voltages or currents between 0.99 and 1.01MHz. Such an amplifier will generally be tuned to a center frequency of 1MHz and designed to pass +/- 0.01 MHz on either side of the center frequency. The classic technique for tuning uses an inductor (coil) and a capacitor, but there's also a variety of other techniques. In practice, the tuned circuit will also pass frequencies outside the specified range, but to a much less degree. Your questions present too broad a front and it's not realistic to expect details other than basic concepts unless you ask more specific questions.
From: Tom Biasi on 27 Dec 2009 12:39 "jekob" <jkb997(a)gmail.com> wrote in message news:737c2523-4d2d-47fb-8953-df0b6fccb1cf(a)k17g2000yqh.googlegroups.com... >I NEED A HELP ON A TUNED AMPLIFIER > JUST ALITTLE LECTURE NOTES ON TUNED AMPLIFIER WITH BJT AND FET ALSO > AND THIER GAIN AND EVERY THING ABOUT THEM And "EVERY THING ABOUT THEM" . That's a lot of info jekob. You have 'till the 4th, get crackin'. Tom
From: ehsjr on 27 Dec 2009 19:47
jekob wrote: > I NEED A HELP ON A TUNED AMPLIFIER > JUST ALITTLE LECTURE NOTES ON TUNED AMPLIFIER WITH BJT AND FET ALSO > AND THIER GAIN AND EVERY THING ABOUT THEM Ok. Say you amplify the tune "Twinkle Twinkle Little Star". You get, depending on how well you construct the amplifier, "Blaze Blaze Super Nova". Ed |