Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation...
-
Upload
flora-douglas -
Category
Documents
-
view
225 -
download
0
Transcript of Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation...
![Page 1: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/1.jpg)
Digital Electronics
Board Game CounterAnalog
![Page 2: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/2.jpg)
Board Game Counter Demo - Analog
2
This presentation will• Review the Board Game Counter block diagram.
• Review the circuit design of the analog section of the Board Game Counter.
2
![Page 3: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/3.jpg)
Board Game Counter Block Diagram
3
0 0 0 1 1 1
0 1 1 0 0 1
1 0 1 0 1 0
1 2 3 4 5 6
AnalogSection
SequentialLogicSection
CombinationalLogicSection
The Analog Section produces a dampened square wave that “rolls” the count and slowly stops.
On every pulse of the clock, the Sequential Logic Section increments a binary count from 1 to 6, then repeats.
The Combinational Logic Section encodes the binary count into the die’s seven dots.
CLOCK
L1L2L3L4L5L6L7
A
B
C
![Page 4: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/4.jpg)
Board Game Counter Block Diagram
4
AnalogSection
CLOCKCombinational
LogicSection
The Analog Section produces a dampened square wave that “rolls” the count and slowly stops.
On every pulse of the clock, the Sequential Logic Section increments a binary count from 1 to 6, then repeats.
The Combinational Logic Section encodes the binary count into the die’s seven dots.
L1L2L3L4L5L6L7
SequentialLogicSection
A
B
C
![Page 5: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/5.jpg)
Analog Section
5
Schematic Diagram
CLOCK
![Page 6: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/6.jpg)
A Simplified Version
6
• When the push button switch is pressed, the 100uf capacitor (C1) will quickly charge to 5 volts through the 1.2 k resistor (R8).
• As long as the push button switch remains pressed, top end of the 10 k resistor (R9) will be held at 5volts. This results in a simplified version that is equivalent to a standard 555 time oscillator.
Actual Version Simplified Version
![Page 7: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/7.jpg)
Analysis of Simplified Version
7
nF 470 C k 18 R k 10 RBA
mSec 982.14T
nF 470 k 182k 10 693.0T
C R2R 693.0TBA
Hz 66.74 F
mSec 982.14
1
T
1F
Period:
Frequency:
RAA
RB
C
![Page 8: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/8.jpg)
Simulation of Simplified Version
8
VOUT
VC
![Page 9: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/9.jpg)
Simplified Version – Timing Analysis
9
mSec 15T
Hz 66.66 F
mSec 15
1F
T
1F
Period:
Frequency:
VOUT
VC
![Page 10: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/10.jpg)
The Actual Version
10
• When the push button switch is pressed and held, the actual analog section of the Board Game Counter performs like a standard 555 time oscillator. However, for the Board Game Counter to operate correctly, the oscillation must slow and eventually stop.
• This is where the 100uf capacitor (C1) and the 1.2 k resistor (R8) play a role.
Actual Version Simplified Version
![Page 11: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/11.jpg)
Simulation of Actual Version
11
VOUT
VC
VLimit
PushButton Pressed
PushButton Released
![Page 12: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/12.jpg)
Actual Version – Timing Analysis
• When the push button is pressed, the 555 Timer produces a 66 Hz square wave.
• Once the push button is released, the frequency gradually decreases (period increases).
• Eventually the oscillation will stop.
12
VOUT
VC
VLimit
PushButton Pressed
PushButton Released
A CB
![Page 13: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/13.jpg)
Timing Analysis at Time A
13
A
mSec 536.15T
Hz 64.36 FT
1F
Period:
Frequency:
![Page 14: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/14.jpg)
Timing Analysis at Time B
14
B
mSec 50.27T
Hz 36.36 FT
1F
Period:
Frequency:
![Page 15: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/15.jpg)
Timing Analysis at Time C
15
C
mSec 429.51T
Hz 19.44 FT
1F
Period:
Frequency:
![Page 16: Digital Electronics Board Game Counter Analog. Board Game Counter Demo - Analog 2 This presentation will Review the Board Game Counter block diagram.](https://reader036.fdocuments.in/reader036/viewer/2022081506/5697c01b1a28abf838ccf7c2/html5/thumbnails/16.jpg)
Board Game Counter – Analog
16
SequentialLogic
Section
CombinationalLogic
Section
Analog Section
Discussed in a future lesson