Showing posts with label tv. Show all posts
Showing posts with label tv. Show all posts
Monday, September 2, 2013
IR illuminator for Night Vision Tv Cameras and Scopes
This source uses LEDs and an astable oscillator to control the switch, duty-cycle, and effective IR illumination output.
Circuit Diagram
Circuit Diagram
Monday, April 8, 2013
How to Make a Small Homemade Automatic Voltage Stabilizer for TV sets and Refrigerator
A voltage stabilizer is a device which is used to sense inappropriate voltage levels and correct them to produce a reasonably stable output at the output where the load is connected.
Referring to the figure we find that the whole circuit is configured with the single op amp IC 741. It becomes the control section of the whole design.
Here we will study the design of a simple automatic mains AC voltage stabilizer which can be applied for the above purpose.
How the Circuit Functions
Referring to the figure we find that the whole circuit is configured with the single op amp IC 741. It becomes the control section of the whole design.
The IC is wired as a comparator, we all know how well this mode suits the IC 741 and other op amps. Its two inputs are suitable rigged for the said operations.
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