All Questions
Tagged with power-amplifier push-pull
8 questions
2
votes
4
answers
680
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Drawbacks of Class A push pull audio power amplifier?
I am willing to develop an Audio power Amplifier myself in a Push Pull configuration of two complementary transistors (NPN,PNP).
On the internet, it is found that most of the conventional Class AB ...
- 33
2
votes
5
answers
3k
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"Pull-up" and "pull-down" or "push" and "pull"?
I thought about this question when I read an interesting comment by @Simon Fitch in his answer.
In the complementary amplifier stage, in total there are three "pulling" elements - Q2 is a &...
- 19.4k
1
vote
0
answers
76
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How do isolated power amplifiers function when connected in series
I'm working on an isolated power amplifier with a differential output. This is achieved through two power op amps driven anti-phase to one another, simplistically it looks like this:
simulate this ...
0
votes
0
answers
100
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Class AB amplifier using push-pull pair signal decay
I'm trying to build a class AB amplifier with push-pull pair of power transistors for audio amplifier.
the circuit works fine with low voltage(~0.2V) but the input peak voltage varies between 0.2 - 2V....
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1
vote
1
answer
697
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How can I choose the resistors for a push-pull class AB amplifier (diode biasing) to get a certain bias current?
Hello guys, this is my very first question.
This is a part from a BJt audio amplifier volume control with 3 stages (Pre-amplifier,Buffer, & Power amplifier). This is the power amplifier stage.
I ...
- 11
0
votes
0
answers
154
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Horn power amplifier design
I need to design experimental prototype of power amplifier (PA) for a horn speaker. The PA should support 100W RMS @ 8ohm. Power supply voltage is 12V. My first (and probably most simple) idea was to ...
- 189
2
votes
4
answers
1k
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How to analyze the biasing of the output stage in this amplifier?
My textbook says that biasing current through Q8 and Q9 is about 20mA and through Q10 and Q11 about 100mA. How can I analyze the circuit to get these values with back-of-the-envelope calculations?
So ...
- 33
0
votes
2
answers
766
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Push-pull amp in class A what it mean
I take next sample schematic.
This is only an output stage of any real power amplifier. It's clear when it's work in B-class the every BJT amplify only one half of input signal. But what it means if ...
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