Selfrunning cold electricity circuit from Dr.Stiffler

[DrStiffler]

@DrStiffler

Having slept on it I realize that the two diodes forming the AV-plug do in fact create a full wave rectifier, not a half wave as in my previous post. The top diode conducts during the positive cycle, while the bottom diode conducts during the negative cycle. The zener diode, LED, neon etc form the regulation function. Either side of the load is a virtual ground relative to the other side of the load, so the DC potential measured across the load can be positive or negative depending on your reference point.

@PCB
Humm..., that makes it a bit difficult in explaining the glow in a neon as being single electrode as in polarized DC rather than bidirectional DC?

[PCB]

@DrStiffler

I'm not quite sure what you mean by bi-directional DC?  There is a DC potential across the neon with a positive node (top diode) and a negative node (bottom diode). The flow of DC current is unidirectional from the positive to negative node. There is also a quite large AC component being the ripple voltage siting ontop of the DC which will modulate the neon which responses to both DC and AC unlike an LED for instance. As an aside, when the AV-Plugs are put in series an in the SEC-20, it is  the ripple voltage that is powering the next stage down the line.

Regarding full verses half wave, its probable half wave on further reflection, with one diode pushing for half a cycle and the other pulling for half a cycle.

[DrStiffler]

@DrStiffler

Having slept on it I realize that the two diodes forming the AV-plug do in fact create a full wave rectifier, not a half wave as in my previous post. The top diode conducts during the positive cycle, while the bottom diode conducts during the negative cycle. The zener diode, LED, neon etc form the regulation function. Either side of the load is a virtual ground relative to the other side of the load, so the DC potential measured across the load can be positive or negative depending on your reference point.

@PCB
involving, moving, or taking place in two usually opposite directions <bidirectional flow>

**Your explaination;
The top diode conducts during the positive cycle, while the bottom diode conducts during the negative cycle.

So is it bi-directional by your statement or is the current always flowing in the same direction?

In your last post where yo observe the AC component, one wonders how there is not a vector addition and subtraction taking place?

[PCB]

@DrStiffler

From my observation the DC current flows only in one direction from the Positive node to the negative node. There is no bidirectional DC current flow, neither could there be since that is the nature of DC. The AC voltage component simply sites on top of the DC voltage. Yes you can vector sum the amplitudes of the DC and AC voltages.

[argona369]

**Removed by Moderator**
Yup! your right! Put it here and it goes away..................