This is a 8 channel RF remote control project. The transmitter powered by 5V.the RF module I used had long start-up and power down period after receiving a high pulse. To counter all of this I kept the receiver in constant standby mode, but sending a information all the time. That way the noise is flooded out, and the receiver will always respond. I had been trying all sorts of error detection methods and different ways of encoding the bytes, when I just gave up. Since the link is so noisy I decided to cut out all of the error detection methods and just make it accept anything it receives, and see what happened from there. But what do you know, it worked!
Posted on Friday, May 6, 2011 • Category: Amplifiers
Here's a 2x60W LM4780 Power Amplifier. LM3886 is very interested in our project was the first project, and were acclaimed. But the feedback we receive from you, from scratch, we knew we should make a complete device. One reason for that, but hard to find and the LM3886 integrated into the original cost of a fact to be taken into consideration. In this project, in which hosts two LM3886 LM4780 integrated with Integration, ie, making a complete amplifier. Advantageous LM4780 is an integrated, cost of both purchase price aşacağından sahtesinin made of forged-not-at least we do not see, but also would have received only two LM3886 price, or even more cheaply. We mean the complete amplifier, pre-amplifier, power amplifier and power supply hosts, ready for use, kutulayıp living room you can put the head in a corner of the device. If your hand if you have preamps or power amplifier, may be helpful in other projects.
Posted on Friday, May 6, 2011 • Category: LED
This the circuit light led flashing ,with show of 10 LED. By use integrated number circuit CD4017 perform be Decade Counter/Divider with 10 Decoded Outputs. Which it is integrated digital circuit CMOS then use the power supply about 9VDC. For a signal input continue the circuit can produce general frequency may use IC NE555 all right.
Posted on Friday, May 6, 2011 • Category: Power Supplies
This is a DC power supply circuit using the LM317T voltage regulator IC, which is the IC of this type is very popular among electronics hobby. Parameter to regulate the output DC voltage carried by the LM317 circuit with a maximum current of 1A.
LM317 output voltage of this circuit is 6V DC, source from the stress out of the 12V CT AC transformer, and then converted to DC half-wave voltage by diodes D1-D2, and filtered by C1 capacitor. The transformer is used should be about 1-2A.
Output voltage of 6V DC power supply circuit is determined by the value of R1 and R2. Diodes D3-D4 on the LM317 voltage current circuit to protect poor return for LM317 circuit IC. As for the other capacitors C3-C4 is used to refine the output voltage, and complete power supply circuits.
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