Video-dc-restorer


Posted on Dec 25, 2012

The main requirement for efficient de restoration is to provide a short time-constant during the clamp period, with a long time-constantlluring the active line time. The switch within the Harris HI201HS has an on resistance of 30 0 and the PM! buffer, BUF03, has an input resistance of 50 MO.


Video-dc-restorer
Click here to download the full size of the above Circuit.

The tuned circuit presents a high impedance at the 4.43-MHz color subcarrier frequency so that the color-burst signal is retained if the video signal contains this information.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

LCD Serial Terminal
3 square waves generator
Remote-sensor-loop-transmitter
Security-door-ajar-alarm
ME218A: Soccer Pinball scoreboard
transducer current limiter circuit
Temperature Sensor
Self-excitation - one short brake circuit
Camera power supply circuit



Top