Re: Which discrete transistor would you use for a boost circuit?


>
>
> OTOH, an opamp IC has about 8 pins to make a connection to while a
> transistor only has 3. An opamp is also easier to unwittingly have
> oscillate than a transistor. Sometimes a one chip solution is a lot
> more of a burden than expected of the novice.
>


Well the idea is that generally you need more than a single transistor for
an amp, but as with anything like this feel free to experiment, there's no
one correct solution by any means.


.

Relevant Pages

  • Re: Spice simulation of closed loop response of a linear regulator
    ... I'm using a NPN ... pass transisitor and a opamp, ... compensation the output oscillates after a step load change. ... NPN transistor to shunt any oscillations to ground. ...
    (sci.electronics.design)
  • Re: opamp problem
    ... I think I must be misunderstanding something about the 358 opamp. ... can swing right down to 0 v. ... the output swings below a volt or so. ... only a very low current single transistor acting as a current source ...
    (sci.electronics.design)
  • Re: opamp driving power transistor driving coil
    ... > I want to switch a coil on and off completely, from a power transistor ... > at the output of an opamp or comparator. ... You can pull down the base voltage by applying a resistive divider to the ...
    (sci.electronics.design)
  • Re: Which discrete transistor would you use for a boost circuit?
    ... > other than fewer connections involved, which is not a major issue. ... An opamp is also easier to unwittingly have ... oscillate than a transistor. ... Sometimes a one chip solution is a lot ...
    (sci.electronics.repair)
  • Re: Using Frequency to voltage converter. LM2907
    ... inputing a pulse of 1Khz, 250mVPP waveform in the input but i am not ... you got one input to the opamp which is the ... driven to the rails and the transistor will only stop conducting when ...
    (sci.electronics.basics)
Quantcast