Learned how to make laboratory high-voltage power supplies
Historically, our company has been engaged in the production of electric vacuum devices and components for them. Hence, our desire, after creating our own small group of circuit designers, to develop and master at least (for starters) small-scale production of high-voltage power supplies is quite understandable. The fact is that we have quite a lot of competencies for working with high voltage in our main line of work, which itself can become the first consumer of such devices to replace old lamp power supplies in test benches, for example.
We took a long time to solve this problem, first trying to make complete functional analogues of high-voltage modules of the “UltraVolt” type and the like based on commercially available transformers from power supplies for gas-discharge backlight lamps. However, then, after the successful development and production of the first samples, transformers suddenly ran out of free sale, and the topic somehow froze for us.
The production of high-voltage power supplies was intensified again after we strengthened our staff and revised the concept. Now we are not trying to catch up and overtake everyone, but are simply implementing the project from the components available today.
I present the design of the first line of laboratory power supplies we have mastered, which is simplified as much as possible through the use of ready-made Chinese components (for example, digital measuring heads for indicating current and voltage in the load).
The source parameters are as follows:
1) Output power – 5 W;
2) Supply voltage – 220 V network;
3) Output voltage continuously adjustable 500 V – 6000 V or 1000 V – 15000 V.
4) Availability of digital indicators of output voltage and load current.
5) Possibility of execution with positive and negative output voltage.
By the way, this is not a single copy, but a sample from a small series of a dozen pieces. We can also make more to order.
According to our plans for the near future in the direction of around-vacuum electronics, I can say that a project is being implemented to develop and begin small-scale production of universal photosensitive modules based on photoelectronic multipliers produced in the Russian Federation (components for which we have been producing for a long time). Currently, the development of a small-sized controlled power supply at 2 kV is being completed, and the rest (including the housing, divider and nano-current amplifier) does not pose a problem for us.
