Simpson 460 4 Series - Basic Timing Diagram

Theory of Operation
2M айы
1 SAMPLE &
RESET
OSCILLATOR 0
-ч ава тле ан
2 MASTER
OSCILLATOR 0
RERERENCE
VOLTAGE
ON
READING OF -1,500 COUNTS
READING OF -1,000 COUNTS
5
SW 26С
6 INTEGRATOR
OUTPUT 0 E
2 Ў READING
OF +1,500 COUNTS
7 ZERO
DETECTOR
8 STROBE б
(TO LATCHES)
Figure 5-5. Basic Timing Diagram
are counted by the Decade Counters until a total of 1,000 counts
is accumulated. At this moment, period Т, ends and Т; begins.
5.4.4 During Т; the input signal is removed, and a reference
voltage of the opposite polarity is connected to the Integrator
input. The Integrator at this time produces a ramp toward the
starting point with a fixed slope as shown in (6) of the timing
diagram. When the Integrator output has reached the "zero" volt-
age starting point, the Zero Detector changes state. At this point
the reference voltage is removed and the Control Logic inhibits
the Master Oscillator.
5.4.5 The count stored in the Decade Counters is in turn trans-
ferred to the Latches via a strobe pulse (8) generated by the Con-
trol Logic. The BCD information is then multiplexed, decoded
5-9