Description An electronic recitification circuit. The use of large, heavy and expensive electrolytic capacitors is avoided, being replaced by an active transistor in this gyrator circuit. Circuit Notes To avoid excess ripple output on a power supply feeding a heavy load, usually a large value capacitor is chosen following the rectifier. In this circuit, C1′s [...]
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 import java.net.*; import java.io.*; public class server { public static void [...]
Every electronics engineer is familiar with the anxiety of the moment when power is first applied to a newly-built circuit, wondering whether hours of work are about to be destroyed in a puff of smoke. A high quality power supply with an adjustable current limit function is an excellent aid to steadying the nerves. Unfortunately [...]
This simple counter can be used to count pulses, as the basis for a customer counter (like you see at the doors of some stores), or for anything else that may be counted. The circuit accepts any TTL compatible logic signal, and can be expanded easily (see Notes). Counter 7 Segment Schematic: 7 Segment Display [...]
UV916-tuner Radio Receiver 45-860MHz To build a Spectrum analyzer I needed a tuner. I also needed to learn how to control the tuner. In some old broken TV I found the tuner UV916. It is a common used tuner. The tuner is PLL synthesized controlled and the frequency can be set from 80-900MHz. The tuner [...]
