Showing posts with label 7. Show all posts
Showing posts with label 7. Show all posts
Wednesday, November 19, 2014
7 Segment Display Digital Dice with IC 4026
7 Segment Display + Digital Dice with IC 4026 -
Composite Materials:
1. IC 555
2. IC 4026
3. 10k ohm resistor (1buah), 100Kohm (1 piece) or replaced with a potentiometer 100k ohms, 220 ohms (7 pieces if necessary)
4. 10 uF capacitor (1 piece)
5. Button press / push button
6. 4.5V battery
7. Jumper cables sufficiently
| 7 Segment Display + Digital Dice with IC 4026 Image |
Assemble steps to Breadboard:
- After stringing understand 555 experimental trials this time it will be easy just follow the schematic drawing shown earlier, and results in the breadboard like this:
- Pushbutton has 4 feet where there are 2 pieces that connect pairs of legs.
- If the battery voltage exceeds 6V, then 7 before going to the 220 ohm resistor required segment or more. If using 4.5 V resistor can not be used.
- Play-turn potentiometer to obtain the desired rate of addition of digits.
- If speed digit changes very quickly, then the circuit can be used as "ELECTRONIC DICE". So when the button is pressed it will stop the numbers digit number we do not expect before.
There is info of 7 Segment Display + Digital Dice with IC 4026
Friday, October 17, 2014
7 Watt Audio Power Amplifier Circuit Schematic
This small amplifier is constructed around the TDA2003 IC, capable of delivering 4Wrms at 4ohms. The TDA 2003 has improved performance with the same pin configuration as the TDA 2002. The additional features of TDA 2002, very low number of external components, ease of assembly, space and cost saving, are maintained. The device provides a high output current capability (up to 3.5A) very low harmonic
and cross-over distortion. Completely safe operation is guaranteed due to protection against DC and AC short circuit between all pins and ground, thermal over-range, load dump voltage surge up to 40V and fortuitous open ground. A conventional direct current can be connected as supply.
Circuits picture:
Circuit diagram:
Parts:
R1 = 470R
R2 = 47R
R3 = 100R
R4 = 1R
C1 = 1822pF
C2 = 100nF-63V
C3 = 100nF-63v
C4 = 10uF-25V
C5 = 470uF-25V
C6 = 1000uF-35v
C7 = 1000uF-35V
IC1 = TDA2003
Specifications:
Read More..
and cross-over distortion. Completely safe operation is guaranteed due to protection against DC and AC short circuit between all pins and ground, thermal over-range, load dump voltage surge up to 40V and fortuitous open ground. A conventional direct current can be connected as supply.
Circuits picture:
Front View of 7 Watt Audio Power Amplifier
Circuit diagram:
7 Watt Audio Power Amplifier Circuit Diagram
Parts:
R1 = 470R
R2 = 47R
R3 = 100R
R4 = 1R
C1 = 1822pF
C2 = 100nF-63V
C3 = 100nF-63v
C4 = 10uF-25V
C5 = 470uF-25V
C6 = 1000uF-35v
C7 = 1000uF-35V
IC1 = TDA2003
Specifications:
- Music power output: 7W / 4ohm
- RMS output: 3.5W / 4ohm or 2W / 8ohm
- Total harmonic distortion: 0.05% (1W / 1kHz)
- Frequency response: 20Hz to 20kHz (-3dB)
- Signal/noise ratio: 86dB (A weighted)
- Input sensitivity: 40mV / 150Kohm
- Overload and short-circuit protected
- Supply voltage: 15V DC (8 to 18V DC possible) / 0.5A
- Dimensions: 2.2 x 1.4"
Thursday, September 18, 2014
7 Watt Audio Amplifier Using TDA2003
Schematic diagram of a simple 7 watt audio amplifier using TDA2003 Amplifier IC. This is a good IC with many built in features like low harmonic distortion, short schema protection,thermal overload protection etc. This IC is a upgrade version of TDA 2002 amplifier IC.
7 Watt Audio Amplifier Circuit Diagram :
The schema is small and using only few components and it is able to deliver 7w output on 12V DC. Assamble the schema on PCB or veroboard and use heatsink with IC. Input voltage can be between 8 to 18 volt / 0.5A DC.
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