Up-Controlled Negative Voltage Converter

Posted on Mar 11, 2013

This circuit was used to produce a variable negative voltage for contrast control of an LCD displa

Up-Controlled Negative Voltage Converter
Click here to download the full size of the above Circuit.

y. A 74F374 generates a square wave that is ac coupled to a rectifier and load. By using the uP clock and data from the processor bus, and properly timed load signal, the dc level generated can be controlled by the uP.

Leave Comment

characters left:

New Circuits



Popular Circuits

20W Class-A Amplifier
25 Watt Audio Amplifier Circuit
3D Printed Netduino Remote Controlled Car
tr switch
internal resistance tester for
Electret microphone amplifier circuit design using transistors
Class B audio amplifier
DIY Homemade Power Pulse Controller
830MHz RF2104 power amplifier schematic circuit configuration
Light control principle circuit rooster crows