Thanks so much Prof Mohamed Azab . I have tried these. The signal was not necessarily shifted. Rather the signal was 'invertered'. The initial pulse signal is for example 0101010000 (pulses)...... Consequently I want an output 101010000 (pulses)...... Going by the logic inverter and the reverse polarity method, the result gotten was 1010101111 (pulses)........ which is not the expected result.

For instance, I want it to shifted the same way different phases of a three-phase voltage are shifted by 120 degrees. But in my own case, I want 180 degree shift

Dear Elutunji,

welcome,

You need to affect a left shift on the data, this will result in the output which you intend. So, you need to write the data in a shift register with 10 stages. Then you shift the data to left by one bit. You can use bidirectional shift register with parallel load.

Best wishes

You can use one of the BJT configurations to do this. The input go up and the output go down.

Flip the leads on the transformer?

Deepest gratitude to Prof Abdelhalim abdelnaby Zekry , Dr Ziad Sobih Ziad and Dr R.D. Horton . I will implement each suggestion and respond accordingly .

Thanks All

You say 'invert' - but from the text you mean invert in a logical, not potential, sense. This is not so easy. You need a circuit that delivers a pulse when the source does NOT deliver a pulse. SInce the source won't be delivering a pulse most of the time, the circuit you use will need to 'know' when to deliver a pulse and when not to deliver one. So you will need a circuit timed by whatever it is that generates your pulses in the first place. So, is generator this a timed circuit, that is, does it deliver or not deliver pulses at specific times? Only if the answer to this is 'yes' can you have a proper answer to your question. If your generator delivers pulses at (pseudo)random times you cannot by definition 'invert' them the way you suggest. Therefore I will assume your circuit does in fact generate pulses at specific intervals. The easiest way then to handle this is to have a circuit which generates pulses continuously (at those specific times), and use your pulses to gate them out with a logic circuit. Only with this approach will you be able to do exactly what you seem to be asking. Best wishes with your work!