|
Written by BuSan
|
|
Monday, 20 November 2006 |
|
The MK50398 is one modern decimal counter up/down of six tens, with control of screen LED of seven segments and flip-flop of storage. Counter it can measure additive and abstractively. The IC MK50398 is ideal for manufacture frequency counter as the particular circuit. The frequency of measurement is from 0 HZ until roughly 1MHZ.
 | R1=10Kohm | C4-5=150pF 100V | IC1-2-4=4093 | | R2-8=1Kohm | C7=47uF 25V | IC3=MK50398 | | R9=8.2Kohm | C8-9-12=100nF 100V | IC5-6=4017 | | R10=10Kohm | C10=1000uF 25V | IC7=Not exist | | R11=22Kohm | C11= 470nF 100V | IC8=7812 | | R12=10Kohm | D1=12V 0.5W Zener | TR1=220V-110Vac / 12V 0.5A | | C1-6=1nF 100V | D2=1N4148 | .LD1-6 =7 segment Display Common Cathode | | C2-3=150pF 100V | D3-6=1N4002 | |
|
|
Last Updated ( Monday, 20 November 2006 )
|
