modified 9 years ago

Bridge circuit

01:01:29

Why the graghs of node voltage both side of a register have that shape?

published 9 years ago

Robert_Kidd

9 years ago

Connect the ground to the junction of the two diode anodes instead. Also add a smoothing capacitor of 100uF across the load resistor.

Robert_Kidd

9 years ago

If you also monitor ground it will prevent oscilloscope 'auto-ranging' too.

Robert_Kidd

9 years ago

Your AC voltage could also do with ramping up a bit.

zohod

9 years ago

improperint

9 years ago

Then, is the minus voltage at the top of the register due to diodes?

Robert_Kidd

9 years ago

I'm not sure I really understand your question:-). Where you place the ground (reference) point determines the waveform you will see. As you are wanting a full wave rectified DC output, to view it the junction of the two diode cathodes is where you will see the positive voltage, with respect to the ground (or negative) side of the circuit - which should be the junction of the two diode anodes.

Robert_Kidd

9 years ago

Note: the ground reference point can be anywhere you decide to place it in the circuit. But the waveform you monitor will always be with respect to that ground point. With a positive DC voltage rail it would be normal to make the 0V the ground reference point.

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.