4511B Common-Anode Display Driver Circuit


Posted on Mar 20, 2013

The use of a switching transistor (like a 2N2222 or 2N3904) allows use of the CD4511B with a common-anode display. should be chosen to provide about 1 mA to drive Ql and Rr should provide enough current to drive the display.


4511B Common-Anode Display Driver Circuit
Click here to download the full size of the above Circuit.

For this circuit, the transistor gain (Hfe) should be at least the ratio of the segment drive current to the current through R.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Bells ring Generator
Touch Switch
Headphone Amplifier circuits
Doorbell circuit using NE555 IC
switches Default-on latch-off MOSFET power switch
radio circuit diagram
High Quality Intercom
Quick On-Board Junction TesterCircuit
Loop lighting control circuit
Four lighting sound and light control switch circuits
Four-way operation of the dynamic braking circuit
High-quality low-noise preamplifier
6 digit LED driver circuit



Top