Electronic 10 way Selector Relays


Posted on Oct 9, 2012

This is a circuit for alternative sources selection. It combines mechanical selection using a rotating switch S1, the electronic drive of the relays RL 1-10 and also the optical indication of the selection by the Display DSP1. The function is based on the connection of the mechanical selections into 4 Bit (BCD) code. It is managed by the proper polarization of the diodes D1-10 and simultaneous convention into decimal output by IC2 which is a BCD to decimal decoder. The monitor is driven by the IC1, which is a BCD to 7- segment Latch/ decoder/ driver. We can made a lot of combinations and selections on the circuit. For instance, we may add Led' s in parallel with the RL1-10.


Electronic 10 way Selector Relays
Click here to download the full size of the above Circuit.

Code BCD to decimal converter for CMOS Part List R1....4= 10Kohms C2= 47uF 25V Q1-10= BD679 R5....11= 820 ohms D1.....20= 1N4148 DSP1= Display 7 segment Common Cathode R12....21= 15Kohms IC1= 4511 S1= 1X10 Step Selector C1= 100nF 63V MKT IC2= 4028 RL1....10= 6V or 12V Relay




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Auto-alarm
Stereo Circuit Schematic of The ADAU1592 Audio Power Amplifier
450W Power Factor Controller with Universal Input Voltage Range
Design and making of the stabilized voltage supply of switch
PLL FM Demodulator Circuit Module
Audio Memo Alert Circuit
MiniDCC Project
Rd flashing light string circuit
Low power timer switch



Top