Hi. Interesting video. An interesting and necessary device. I'm sorry, but unfortunately the subtitles are not available, and I don't understand the language. However, radio electronics is a universal language, so what I see, I probably understand the same way as you. The principle seems simple, but the circuit is not simple and there are many components. Of course, a certain part will be occupied by typical designs, such as a charger or dс-dс, but there are as many as 5 operational amplifiers, and it is very interesting how everything is done there, where the feedback loops are and how the current regulation is done. Could you share clear photos of both sides of the board for possible reverse engineering? Maybe you already have a scheme? Thank you.
Here is what I've found: The transformer is driven by a single NPN transistor . There are 3 windings in the transformer : primary, secondary and base drive. The secondary is about 1kVAC There is a voltage tripler on the high voltage stage. Normally the power stage is throttled by either voltage or current limits set by the pots The current is sensed in the negative leg on a 20 ohm resistor. There is a 5V boost converter for the op-amps The DPM is a dedicated HV measurement system
Good day sir Pau ❤. Salamat sa magadang at malinaw na paliwanag sa iyong pag teardown.
You're Welcome po sir Andy
Linis ng loob master tsaka ung dislay may program pala yan
Opo sir Jojo, kasi wala naman po akong makitang ganyang Voltmeter sa online na kaya hanggang 3800V
Watching sir
Salamat po sir John
Hi. Interesting video. An interesting and necessary device. I'm sorry, but unfortunately the subtitles are not available, and I don't understand the language. However, radio electronics is a universal language, so what I see, I probably understand the same way as you. The principle seems simple, but the circuit is not simple and there are many components. Of course, a certain part will be occupied by typical designs, such as a charger or dс-dс, but there are as many as 5 operational amplifiers, and it is very interesting how everything is done there, where the feedback loops are and how the current regulation is done. Could you share clear photos of both sides of the board for possible reverse engineering? Maybe you already have a scheme? Thank you.
It's only 17usd in AliExpress, i think you can buy these device
Here is what I've found:
The transformer is driven by a single NPN transistor .
There are 3 windings in the transformer : primary, secondary and base drive.
The secondary is about 1kVAC
There is a voltage tripler on the high voltage stage.
Normally the power stage is throttled by either voltage or current limits set by the pots
The current is sensed in the negative leg on a 20 ohm resistor.
There is a 5V boost converter for the op-amps
The DPM is a dedicated HV measurement system