Tektronix 465M - Sequence of Events During a Sweep Generation; Queiscent Condition; Simplified Diagram of the a Sweep Generator

AIR
FORCE T033A1
-13-496-1
NAVELEX
0969-LP-170-0010
Operation
Instructions
(b)
Sequence
of
Events During
A Sweep
Generation.
1
Quiescent
Condition.
The quiescent
condition
exists
during
holdoff and
after
holdoff but
before
the A
Trigger
Generator
produces a
sweep
start gate.
Pin 14 of
U2790 is
HI. This sets
point A
(see Figure 4-6) HI.
This
causes the output
of the sweep
start comparator to
appear
as
a
low-impedance
point. The output
of the sweep start
comparator
supplies
current through
pin 4 of
U2790,
and
through
Rt,
to
set the
inverting
input
of
the Miller
op
amp
to
the same
voltage as
the non-inverting
input (the sweep
+32
Figure
4-6. Simplified
diagram of the
A sweep generator.
4-14