Re: How would one use NPN transistors only?

From: Jim Thompson (thegreatone_at_example.com)
Date: 06/11/04


Date: Fri, 11 Jun 2004 08:00:00 -0700

On Fri, 11 Jun 2004 06:58:05 GMT, Rick<rik_nntp@dsl.pipex.com> wrote:

>Jim Thompson <thegreatone@example.com> wrote:
>>
>> See "MC1554-AudioPowerAmp.pdf" on the S.E.D/Schematics Page of my
>> website.
>
>
>Don't see how this can work - the output stage's darlington has its
>base and emitter clamped to almost the same voltage by the two
>diodes connected to pin 8; it won't conduct.
>

LOL! Do some more thinking before "shooting from hip" ;-)

                                        ...Jim Thompson

-- 
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.


Relevant Pages

  • Re: How would one use NPN transistors only?
    ... >> website. ... >Don't see how this can work - the output stage's darlington has its ... >base and emitter clamped to almost the same voltage by the two ... Did Jim Thompson invent crossover distortion? ...
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  • Re: Electronics Theory: System 80 Pop Bumper Driver
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  • Re: MRC Ampack upgrade: Attn electronics froods
    ... perhaps try it with a motor, and if the voltage seems to drop too much ... Testing with a resistor load is a good thing to do. ... The base emitter junction will be forward biased, which causes conduction from collector to emitter. ... A darlington pair acts just like a single transistor with the benefit of much increased gain. ...
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  • Re: Electronics Theory: System 80 Pop Bumper Driver
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    (rec.games.pinball)