16 keys keyboard encoder circuit using 74C922N
It may be difficult. In the design of the BCD signal generator circuit by pressing a key. Here is how you make a keyboard encoder circuit for 16 keypads.
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June 1, 2017
Include: Digital counters :: IC-4017 decade counter :: 7 segment LED
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Linear x10 Amplifier by 4011 Gate
Leaning simplest power amplifier with the digital IC!
May 23, 2017
Pulse generator control frequency by digital IC
This circuit make pulse signal in continuity. We call it that Astable Multi Vibrator circuit. The 555 timer-IC1 is working with VR1, R1, R2, and CT. The value of CT…
May 13, 2017
The Level Voltage of Logic Changer by a JFET
This is a logic signal changer circuit,the normal voltage of about 5V. But sometimes we want to 12V or 15V, we can use a JFET.It works by mode COMMON GATE.…
May 13, 2017
A diode protect CMOS circuit
The CMOS digital circuit used to produce a osicillator, with pulse low frequency frorm. We use R and C are a lot of period time. it must have a diode…
May 13, 2017
Led light running mixed using the NOT Gate
Many people would never suspect.IC is not Gates, frequency generator that? Will be deployed there? The rubber or how it works? This circuit will work to understand more easily.Because a…
May 4, 2017
Two LED Flasher using Gate of IC 4011
IF you want the small circuit two LED Flasher, I show this circuit. The important part of the circuit is IC 4011 again, I used gate of IC 4011 (see…
April 22, 2017
