resistor between two opposite clocks

[moh.haroun]

Hi all
I am investigating the response of a circuit in which two synchronous clocks with 180 phase shift are connected by two 10 kohm resistors and the output is the common signal between the two resistors. May anybody help please?

 

[BradtheRad]

You are describing a full H-bridge, in concept. This assumes the clock signal alternately provides supply+, then 0V. The resistor receives true AC square wave.

 

[c_mitra]

I am investigating the response of a circuit in which two synchronous clocks with 180 phase shift are connected by two 10 kohm resistors and the output is the common signal between the two resistors. May anybody help please?

Since the two signals are out of phase at all times, the common signal at the junction of the two resistors will be zero. You can safely connect your load to this point and the "real" ground and the whatever remains, after the two clocks cancel each other, will appear at the load.

 

[moh.haroun]

So what would i expect at the junction between two resistors

 

[c_mitra]

So what would i expect at the junction between two resistors

Assuming that the signals are not distorted (significantly loaded) by the 10K0 resistors, the sum of the two voltages will appear at the junction point. The voltage at the sum point will be zero. Of course you need to set your ground appropriately (with respect to the signals; there should be no DC).

 

[moh.haroun]

Ok so what is the purpose of this conjunction if the voltage at this point is zero??

 

[c_mitra]

Ok so what is the purpose of this conjunction if the voltage at this point is zero??

If one of the signals suffer some shift, that will show up...