Download T2P3-Omari

Block Diagram
Analog Channels
from Receiver
(Left & Right Rear)
Transmitter
Transmitter
Power Supply
Analog
ADC
IR Transmitter
(Ayo)
(Eenas)
(Kevin)
Digital
Infrared
Receiver × 2
Receiver
Power Supply
Amplifier
(Brian)
DAC
Analog
IR Receiver
(Ayo)
(Kevin)
Digital
(Rick)
Analog
Channel to
Speaker
1
Transmitter Power Supply
• Block Description
– Is an electrical device that transforms the
standard wall outlet electricity (AC) into the
lower voltages (DC).
– Will supply voltage to both the Analog to
Digital converter (ADC) and the Infrared
transmitter (IR Transmitter).
Block Owner: Eenas Omari
2
Block Level Performance Requirements
* User Indicators and Displays:
- Indicator Parameter : Power on LED.
- Indicator Color and Type : Red LED.
- Indicator Viewing Environment: bright light, full darkness.
* Operation Modes:
- Power Mode: ON, OFF.
- Functional Mode: Normal.
* Electrical Interfaces:
Signal Type: Analog.
Signal Direction: Input, Output.
Input Voltage Range: 103 – 132 volts (AC).
Input Frequency Range: 57 – 63 Hz.
Output Voltage Range: 5, +12, -12 volts (DC).
Output Current max. : 400 mA
Block Owner: Eenas Omari
3
Block Level Standard
Requirements
* Environmental:
• Operating Temperature Range: 10 – 40 oC
• Storage Temperature Range: 10 – 40 oC
• Operating Humidity Range: 2 – 98 %Rh
• Storage Humidity Range: 2 – 98 %Rh.
Block Owner: Eenas Omari
4
Transmitter Power Supply
Block Signals
Signal or Grouped Signal Name
Power Signals
Type
Direction Voltage
Nominal
Voltage Range
Min
Max
Freq Freq Range
NominalMin Max
Power1 VCC +5
Power2 VCC +15V
Power3 AC Input
Power4 VCC -15
DC Power
DC Power
AC Power
DC Power
Input
Input
Input
Input
4.75V
14.25V
102V
14.25V
DC
DC
60Hz
DC
Block Owner: Eenas Omari
5.0V
15.0V
120V
15.0V
5.25V
15.75V
132V
15.75V
0
0
57Hz
0
N/A
N/A
63Hz
N/A
% V-Reg V-Ripple
Max
Max
5.00%
5.00%
15.00%
5.00%
0.1V
0.25V
N/A
0.25V
Current
Max
1.1A
0.57A
3.0A
1.67A
5
Transmitter Power Supply
Design
120 volts AC
Isolation
Input
+5 Volts
Voltage
Regulator
(DC/DC)
Rectifier
Voltage
Regulator
(DC/DC)
Isolation
Rectifier
Over-voltage
Protection will
be considered
in this design
Block Owner: Eenas Omari
Output
AC/DC
Conversion
+15 Volts
AC/DC
Conversion
Negative
Voltage
Regulator
(DC/DC)
-15 Volts
6
Block Architecture
Transformer: 1 primary and
2 Secondary. Unless
Otherwise advised!!
Block Owner: Eenas Omari
7
Sub Circuit
Type
Applicable Worst Case Analysis Plan
Task 1
Task 2
Task 3
Task 4
Task 5
Task 6
Task 7
5VDC
Regulator
R, L &
C Tol
R, L & C
Specs
Over
Current
Protect
V vs I
Regulat
ion
Power
Semi
J Temp
Power Semi
Package
Input
Voltage
Range
15VDC
Regulator
R, L &
C Tol
R, L & C
Specs
Over
Current
Protect
V vs I
Regulat
ion
Power
Semi
J Temp
Power Semi
Package
Input
Voltage
Range
-15VDC
Regulator
R, L &
C Tol
R, L & C
Specs
Over
Current
Protect
V vs I
Regulat
ion
Power
Semi
J Temp
Power Semi
Package
Input
Voltage
Range
Xfmr Diode
Bridge
Over
Current
Protect
Power
Semi J
Temp
Power
Semi
Package
Input
Voltage
Range
C Tol
C Specs
Output
Voltage
Ripple
Resistors
Nomina
l
Value/
Max
value
Toleranc
e Around
Nominal
Derated
Power
Capacity
Maximu
m
Workin
g
Voltage
Maximum
Constant
Current
Maximum
Surge
Current
Composition
Dielectric or
Form
Package
Capacitors
Nomina
l
Value/
Max
value
Toleranc
e Around
Nominal
Maximum
Working
Voltage
Maximu
m
Consta
nt
Current
Maximum
Surge
Current
Composition
Dielectric or
Form
Q Factor or
Frequency
Variation
Package
Block Owner: Eenas Omari
Task 8
8
Key Component Selection
Components
Type
Quantity
Power
Rating
Tolerance
Resistors
Film Carbon
6
0.25 Watts
5%
Capacitors
Tantalum
3
Electrolytic
6
Diodes
Power
4
Transformers
Centertapped
Step Down
1
Voltage
Regulators
3-Terminal
Adjustable
Positive/ 2
Negative/1
Block Owner: Eenas Omari
20%
Voltage
25V
35V
9
•
Selected transformer :
115 volts at 50/60 Hz with a series connection of 56V
C.T @ 2A.
Output DC voltage and current after rectification
18  VDC  55
VAC  (VDC  1.4) / 2
VDC  2  (56 / 2)  1.4  38.2V .
iAC  1.8  iDC
iDC  (2 / 2) / 1.8  0.556 A.
To Find the filter capacitor value:
C  (1L / V )  6 10^ 3
C  (0.556 A / 0.5vpp)  6  10^ 3  0.006672 F
C  6672 F
Block Owner: Eenas Omari
10
• Finding the resistance values are
according to the following equation:
VDC ( out)  1.25V (1  ( R 2 / R1))  IADJ  ( R 2)
For the negative voltage.
 VDC ( out)  1.25V (1  ( R 5 / 120))  IADJ  ( R 2)
The adjustable current could be neglected
because it’s so small ( in Micro Amps).
Block Owner: Eenas Omari
11
Resistance ratios:
+5 volts DC:
R2/R1 = 3.
+15 volts DC:
R4/R3 = 11.
R6 is selected to be 120 Ω:
-15 volts DC:
R5 = 11 X 120Ω = 1.32 kΩ .
Block Owner: Eenas Omari
12
Component Selection
Components
Symbol
Value
Resistors
R1
R2
R3
R4
R5
R6
2.2kΩ
6.8kΩ
2kΩ
22kΩ
2kΩ
180Ω
Capacitors
C
C1
C2
C3
C4
C5
C6
6800uF (
1.0 uF (tantalum)
10 uF (alum electrolytic)
1.0 uF ( tantalum)
10 uF (Alumelectrolytic)
1.0 uF ( Tantalum)
10 uF (aluminum Elec)
Block Owner: Eenas Omari
13
Bill of Materials
QTY Generic Name
Mfg 1
Mfg 1 PartMfg
# 2
Mfg 2 PartTH/SMT
#
mm 2 Function
PCB
Package PlacementArea
Auto/Man
or Description
Attributes
Tol%
$Cost/One
1 Resistor
Panasonic ERD-S2TJ181V
- ECG
Yageo
CFR-25JR-180R
SMT
Axial
Auto
36 Specifies outputRES
voltage
180 OHM CARBON
5% FILM
$0.067
1/4W
2 Resistor
Panasonic ERD-S2TJ202V
- ECG
Yageo
CFR-25JR-2K0
SMT
Axial
Auto
36 Specifies outputRES
voltage
2.0K OHM CARBON
5% FILM
$0.067
1/4W
1 Resistor
Panasonic ERD-S2TJ222V
- ECG
Yageo
CFR-25JB-2K2
SMT
Axial
Auto
36 Specifies outputRES
voltage
2.2K OHM CARBON
5% FILM
$0.067
1/4W
1 Resistor
Panasonic ERD-S2TJ682V
- ECG
Yageo
CFR-25JR-6K8
SMT
Axial
Auto
36 Specifies outputRES
voltage
6.8K OHM CARBON
5% FILM
$0.067
1/4W
1
3
3
2
4
1
1
1
1
Resistor Panasonic ERD-S2TJ223V
- ECG
Yageo CFR-25JR-22K
SMT
Capacitor Panasonic EEA-FC1E100
- ECG
BC Components
2222 021 38109
SMT
Capacitor AVX Corporation
TAP105K035SCS
EPCOS IncB45196P6105K209
SMT
Capacitor Nichicon UVR1V682MRD6
Panasonic ECE-S1VU682M
- ECG
SMT
Diode
Diodes Inc 1N5404-T General Semiconductor
1N5404
SMT
Regulator National Semiconductor
LM317MDTTexas Instruments
LM317MDCYR
SMT
Regulator National Semiconductor
LM317LZ ON Semiconductor
LM317LZ SMT
Regulator National Semiconductor
LM337LZ ON Semiconductor
LM337BD2TR4
SMT
Transformer
Axial
Auto
Radial
Auto
Radial
Auto
Radial
Auto
DO-201AD Auto
TO-252
Auto
TO-92
Auto
TO-93
Auto
36
20
200
750
36
20
20
20
Specifies outputRES
voltage
22K OHM CARBON
5% FILM
$0.067
1/4W
stability ( Improves
CAPtran.
10UF
Response)
25V ELECT
20%FC RADIAL
$0.30
Input Bypass Capacitors
CAP TANTALUM 1UF
10%
35V 10%
$0.46
RAD
Filter Capacitor CAP 6800UF 35V ELECT
20% VR $2.79
RADIA
Full wave rectifier
RECTIFIER
bridge
GPP
N/A400V 3A DO-201A
$0.41
linear positive voltage
IC REG
regulator
POSITIVE
N/A ADJ TO-252,
$1.09
500
linear positive voltage
IC REG
regulator
POSITIVE
N/A ADJ TO-92,$0.44
100m
linear negative voltage
IC REGULATOR
regulator
N/ANEG ADJ TO-92,10
$0.99
14
Device Package
• Prototype:
For the LM137/LM337
-To-263 Package.
For the LM117/LM317A/LM317
-To-220 Package.
• Product:
PCB Mount
Block Owner: Eenas Omari
15
Block Prototyping Plan
Block
Name
Block Area
(cm2)
Total PCB
Area (cm2)
PCB
Substrate
Type
Comp
Attachment
Type
Socketed
Components
Types of
Connectors
Transmitter
Power
Supply
155
195
Outsourced
Direct Solder
N/A
IEC320
Cable
IEC320
Off Board Connector
Block Owner: Eenas Omari
16
Task-Resource Estimate
Summary
Total hours: 282.5.
Which includes:
* Project definition and system design
phases.
* Verification, integration and productization phase.
* Validation and presentation “final phase”.
Total cost of $71 (Which includes PCB board).
Block Owner: Eenas Omari
17