Acidmods
AcidMods Resources ----- ( These are helpful tools for modding ) => Electronics Projects => Topic started by: FOOKz™ on February 04, 2010, 03:23:50 PM
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I am starting a 200 Watt High power digital amplifier with two push buttons that control the master volume. Soon coming out with a personal pocket version thats only 20 watts. the push buttons control the volume up and the volume down. This project will not use a PIC. I have yet to draw the schematic and post pictures.
Parts List:
NTE4066B Bilateral Switch
NTE4029B UP/DOWN BCD Binary Counter
CD4013B Dual D-type Flip Flop with Reset and Clear
74HC393 Dual 4-Bit Binary Counter with Preset and Reset
LM339 Quad Comparator
4 Segment Green Bar Graph LED Display
3 Segment Yellow Bar Graph LED Display
2 Segment Red Bar Graph LED Display
N/O 3mm Tactile waterproof Push Button
NTE4011B or any equivalent NAND gate
4511B BCD to 7-Segment LED Display Driver
7-Segment LED Display
Capacitors
Resistors
Coils
50 Amp Bridge Rectifier
7805 +5Volt DC Regulator
7812 +12Volt DC Regulator
N-JFET Transistors
High Power MOSFET Amplifying Transistors
1:6 Step down center tapped transformer
2:3 Step Up audio transformer
Isolator transformer
Female Audio Jacks
CPU Cooling Fan
SPST Switch
12"x28" - 3/16" Plexi glass
PVC Cement
** I have most of these parts
Edit: Started Breadboard the 4066 Resistor network and testing which resistors are best fitting for volume control.
(https://acidmods.com/forum/proxy.php?request=http%3A%2F%2Fi214.photobucket.com%2Falbums%2Fcc123%2Fsnoodracoon1%2F23a32cee.jpg%3Ft%3D1265327746&hash=e43b038604189035a80a35e5aa8bfa8a3c310038)
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Constructed the DC Power Supply
DC Power Supply Schematic:
(https://acidmods.com/forum/proxy.php?request=http%3A%2F%2Fi214.photobucket.com%2Falbums%2Fcc123%2Fsnoodracoon1%2Fth_eb099dfb.png&hash=148823adb323a42e2b03a8c7b9bd1c6ca0d0318f) (http://i214.photobucket.com/albums/cc123/snoodracoon1/eb099dfb.png?t=1265333920)(https://acidmods.com/forum/proxy.php?request=http%3A%2F%2Fi214.photobucket.com%2Falbums%2Fcc123%2Fsnoodracoon1%2Fth_a0ceb2ab.jpg&hash=56509fe5852021df1c99d766581b183a2b4e62c3) (http://i214.photobucket.com/albums/cc123/snoodracoon1/a0ceb2ab.jpg?t=1265333949)
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Volume Control Schematic:
(https://acidmods.com/forum/proxy.php?request=http%3A%2F%2Fi214.photobucket.com%2Falbums%2Fcc123%2Fsnoodracoon1%2Fth_07fd9469.png&hash=590ee283b1a8efa90221ef4baa44f131d478f68a) (http://i214.photobucket.com/albums/cc123/snoodracoon1/07fd9469.png?t=1265434169)
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Main Amplifier Circuit:
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:bump
everything's still in beta testing and i have killed a few 386 OP AMPS on the process.
I need to do a bit more math before the MOSFET Power amplifier transistors come into the picture.
The MOSFETS aren't cheap almost $26.00 per transistor. Especially the Audio DMOS type.
I killed a Transistor and melted a breadboard today after testing.
this is really, ummm whats the words: Insubordinate and not cool.
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I jacked some SI - T-NPN power amplifying transistors [NTE130] from work today.
Specs on Package --
- VCBO: 100v RMS
- VCEO: 60v RMS
- VEBO: 7v DC RMS
- IC: 15A
- PD: 115W MAX
- hFE: 45 (typical w/ normal saturation)
- IT: 3MHz (typical w/ normal biasing)
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Parts List Subject to change since this project is still under development.
Unofficial Parts List At the Moment:
Measurements are to US Standard
QTY | NAME
- Digital ICs:
8 | 4013B Dual D-type Flip Flop with Reset and Clear
4 | 4011B or any equivalent NAND gate
6 | 4029B UP/DOWN BCD Binary Counter
4 | 4049B Hex Inverter
8 | 4066B Bilateral Switch
8 | 74HC393 Dual 4-Bit Binary Counter with Preset and Reset
4 | 741 OP Amps
2 | LM386 OP Amp/Comparator
12 | LM329 Quad Comparator
5 | 4511B BCD to 7-Segment LED Display Driver
- Analog Components:
2 | 2n2222 NPN Switching
1 | 2n3906 PNP Switching
4 | 2200 Micro-Farad 200Volt Electrolytic Cap
4 | 470 Micro-Farad 250Volt Electrolytic Cap
4 | 220 Micro-Farad 50Volt Electrolytic Cap
4 | Slider 10 Pico-Farad Cap
2 | 100 Milli-Henry Inductor
2 | 22 Milli-Henry Inductor
2 | RSH-36-EMNL 8 Ohm 18mm 60 Watt BASS Speaker
2 | RM-1841SP-NL 8 Ohm 18mm 60 Watt MID Speaker
2 | RMII-1853-NL 8 Ohm 18mm 60 Watt Speaker
- Resistors-Capacitors:
Potentiometers
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- Switches & Relays
14 | N/O 3mm Tactile waterproof Push Button
6 | N/O 8mm Tactile extended waterproof Push Button
2 | SPDT Switch
4 | 20 Amp 140 Volt DC RMS Auto-Reset Breaker
- Diodes and Power Components:
2 | 50 Amp 300 Volt Power Bridge Rectifier
2 | BZP61-22 35 Amp 27 Volt Power Zener Diode
4 | STB16FN06L 60v N-Channel Low Current MOSFET
4 | 2N7002 TO-92 Low Q, N-Channel Static MOSFET
6 | 4 Segment Green Bar Graph LED Display
6 | 3 Segment Yellow Bar Graph LED Display
6 | 2 Segment Red Bar Graph LED Display
5 | 7-Segment RED LED Display
1 | 1:6 Step down center tapped transformer
1 | 2:3 Step Up audio transformer
2 | Isolator transformer
4 | 7805 +5Volt DC Regulator
4 | 7812 +12Volt DC Regulator
- Hardware Parts:
1 | 3/16" Thick Aluminum sheet 2' x 6 1/2'
2 | 11/32" Diam. Soft Copper-Silver Heat-Pipe [1' Long]
1 | 1/4" Thick Clear Lexan Sheet
8 | 1/16" Vex Kit Nuts and complementary Bolts
4 | Plastic 5mm LED holders
- Plastics and Other Hardware:
8 | Lexan washer bushings
8 | Mica Insulators
6 | 3M self adhesive Rubber stopper
1 | PVC Cement
1 | 1K Ohm Conductive Foam
4 | Centrifugal CPU Cooling Fan
6 | Copper-Aluminum Heatsinks
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Here are some photos of old progress, im dusting this one off for now.
From top to Bottom:
- 4029 Presetable Binary Up-Down Counter With Carry
- 4066 CMOS Bilaterals
- Power Supply Parts
- Bridge Rectifiers
- Capacitors
- High Wattage Diodes
- Bread boarded Digital VU Meter and LM386 Preamp circuit
- Parts laid out