Norton Security Suite did not allow me to complete the above. A potential virus problem. Still, please comment on Figure 2 as it relates to the writing of Mr. Pass. Both of the TCAs in Fig 2 are working in the common source or opposed drains configuration. Will Figure 2 work as a klone [ZM's word useage] to the output stage of simplified F6; theoretically speaking.
It's a little tough to make fig 2 work - both those parts are N channel in
the drawing. I have never had much luck running N channel parts with the
Source attached to V+.
Presumably he meant to have P channel devices on the top. If you can get
good symmetry between P and N channel parts, you're all set.
the drawing. I have never had much luck running N channel parts with the
Source attached to V+.
Presumably he meant to have P channel devices on the top. If you can get
good symmetry between P and N channel parts, you're all set.
)
.......I have never had much luck running N channel parts with the Source attached to V+......
Attachments
It's a little tough to make fig 2 work - both those parts are N channel in
the drawing. I have never had much luck running N channel parts with the
Source attached to V+.
Presumably he meant to have P channel devices on the top. If you can get
good symmetry between P and N channel parts, you're all set.
Thank you for taking the time to respond.
Fortunately, I did not mean or imply to use the bolded statement above. These are the 2 exact questions which pertain to Figure 2 of OTLAmp5 several threads earlier.
- Suppose each of the TCAs is a dual polarity version of ACA#1. Will the circuit work?
- Suppose the output stage of each TCA is the opposed collectors of matched and complementary symmetry BJTs. I have two stereo TCAs which fit this specific description. Thus, I am able to answer the question; will this BJT circuit work and how well will it perform?
consider one basic amp as Black Box
as long you're using identical Black Boxes , you can bridge them , parallel them , bridge again , parallel again
(amp) cell doesn't know how crazy load on output is
all you need to know is that with each bridging output impedance of combo is double , comparing to cell output impedance ..... but that's pretty irrelevant in case of TCA
how well it would work ........ good if cell is working good
as long you're using identical Black Boxes , you can bridge them , parallel them , bridge again , parallel again
(amp) cell doesn't know how crazy load on output is
all you need to know is that with each bridging output impedance of combo is double , comparing to cell output impedance ..... but that's pretty irrelevant in case of TCA
how well it would work ........ good if cell is working good
I was sloppy in using the underlined in an earlier thread. I meant to say a dual polarity power supply for each of the ACA#1 [and for other Pass amps of similar topology].
I am glad my mistake inadvertently gave you the new option for the output stage you wrote about.
except that when you bridge a Class AB amp, you halve the impedance of the load and the heat necessary to be dissipated doubles.
Of course, we're not AB'ing here...
ZM: Figure 1 of OTLAmp5 shows two ACA#1s connected in a bridge configuration. I believe we all agree that it works for whatever value it embodies.
Figure 2 of OTLAmp5 shows two TCAs [each having its independent dual polarity power supply] which are not connected in the bridge configuration like in Figure 1. In my mind, the operation of the upper TCA is like the operation of the upper JFET in the simplified F6 schematic. Ditto for the operation of the lower TCA which I liken to that of the lower JFET in the simplified F6 schematic.
I do not believe this following QUESTION was answered in a straightforward and concise manner. Is each TCA in Figure 2 of OTLAmp5 operating like its corresponding JFET in the simplified F6 schematic?