I froze the frame where the questionable PCB is displayed. Image below. It shows mains power being fed to a circuit where a low voltage IC is present. There is no transformer in place. I have never heard of an IC that can work with 320VDC (rectified 230VAC). I can only guess that IC is not connected to anywhere and that PCB is just for show. It looks like a fraudulent exercise.
If it is a very low power IC, it might be powered via just a resistor dropper/zener.I froze the frame where the questionable PCB is displayed. Image below. It shows mains power being fed to a circuit where a low voltage IC is present. There is no transformer in place. I have never heard of an IC that can work with 320VDC (rectified 230VAC). I can only guess that IC is not connected to anywhere and that PCB is just for show. It looks like a fraudulent exercise.
View attachment 177392
What is the effect if that is the case? The current drained by the PCB will be miniscule to the currents involved in the mains section to have any shunting effect.If it is a very low power IC, it might be powered via just a resistor dropper/zener.
EDIT: in fact looking at the tracks, something like that is happening. It even looks like it might have originally been a resistor divider then one of the resistors (R2) replaced by a zener without the component reference on the board being updated. You can almost see the complete PSU: mains rectified onto capacitor. +HV DC from cap through resistor to zener, then back to -DC.
Oh don't get me wrong - it is doing nothing useful. But it is powered.What is the effect if that is the case? The current drained by the PCB will be miniscule to the currents involved in the mains section to have any shunting effect.
So does the mains transformer and reservoir capacitors in every bit of equipment attached, and without any additional cost.We failed to find any spikes for it to clamp, but we did prove that the Ultra Purifier cuts noise on the mains above about 5kHz.
I doubt it’s that cold in hellBloody hell!!!
Exactly. I know that Amir has tested the AC output of a few of these power conditioners and reported that the difference is negligible or even worse then the incoming AC, but it would be fun to see him scope the internal DC coming from an amp's PSU.So does the mains transformer and reservoir capacitors in every bit of equipment attached, and without any additional cost.
Honestly, when will this sort of crap stop?
S.
Proximity Effect.I froze the frame where the questionable PCB is displayed. Image below. It shows mains power being fed to a circuit where a low voltage IC is present. There is no transformer in place. I have never heard of an IC that can work with 320VDC (rectified 230VAC). I can only guess that IC is not connected to anywhere and that PCB is just for show. It looks like a fraudulent exercise.
View attachment 177392
You actually can hook up stuff without a transformer. Look at how one can connect a LED to 230 VAC.I froze the frame where the questionable PCB is displayed. Image below. It shows mains power being fed to a circuit where a low voltage IC is present. There is no transformer in place. I have never heard of an IC that can work with 320VDC (rectified 230VAC). I can only guess that IC is not connected to anywhere and that PCB is just for show. It looks like a fraudulent exercise.
View attachment 177392
Have you never seen inside a LED bulb or phone charger...e. I have never heard of an IC that can work with 320VDC (rectified 230VAC)
Phone chargers still have a transformer, as do many LED bulbs. The more modern once's consisting of strands of micro-LED might even have no additional electronics if there are enough LED’s in series. At least these look like old fashioned filament lamps.Have you never seen inside a LED bulb or phone charger...
But the control IC is often on the high side and has often even integrated switchesPhone chargers still have a transformer, as do many LED bulbs.