The website is being updated!


Dear Customers, the site is being updated. In particular, our product range, series parameters and datasheets contents. Some information presented on website at the moment may not be actual, however we're working hard to finalize our updates as soon as possible and upload the updates to our website. If you have any questions, please ask.
Thank you!

New series of DC/DC converters with built-in MIL-STD-461F filters


Typical system with DC/DC converters involves application of additional EM filters to achieve compliance of MIL-STD-461. But in special cases - customers require converters that don't need any external components.
Due to such requirements, we completed R'n'D allowing us to implement special filter circuitries inside the converters. This allows creating compact systems of distributed power delivery without placing any external EM filter components or other mandatory components, which are normally required for stable converter operation.
AEPS-group now offers new DC/DC converters JETDiR32-R (22x60x15 mm) and JETDiR70-R5 (61x59x13 mm). The JETDiR32-R is made for input voltage range "270" (230-350 VDC, 450 VDC transient) and JETDiR70-R5 for input voltage range of 135-245 VDC. Without any external components the units comply with MIL-STD-461 CE101 and CE102.
Preliminary datasheets for units JETDiR32-R and JETDiR70-R5 are located in section "DC/DC custom units and blocks".

New member of JETDiR series - DC/DC converters for critical application


Logical continuation of JETDiR series in industrial case BRICK form-factors is a brand-new converter: JETDiR1500-R6E with output power of 1500 W. The new input range is introduced - "270" (230-350 VDC, 450 VDC transient). The converter utilizes "flexible" case of BRICK size (modified according to customers' requests), with dimensions of 119х63х15 mm.
The emergence of the JETDiR1500 sets a unique (for us) top level of power density - 218 W/in3 with typical efficiency of 94 %. Until this moment, the highest power density belonged to our DC/DC converter - TESND1000 – 118 W/in3.
The converter was designed to power load based on GaAs and GaN devices, with typical output voltage of 30-60 VDC. First production batches will start in May 2021.
The final datasheet will soon appear next to the other standard JETDiR products in section of "DC/DC power supply units for critical applications". At this moment, preliminary datasheet is available in the section "DC/DC custom units and blocks".
Next is the manufacturing preparation a new model of JETDiR2000-R6E with output power of 2000 W.

New categories of custom power supply units and blocks


During recent years we've completed a lot of very interesting projects for custom power supplies. New product groups have appeared - AC/DC custom units and blocks and DC/DC custom units and blocks. We will continue to add to these categories and display you our newest projects and capabilities. Keep up with the updates. We will be very glad if you find something to your liking.
- team of AEPS-group

Selection guide of 2021


On our website you can find a new selection guide for year 2021. To be able to conveniently choose a product we provide classification of our units according to areas of application.
    1. Standard series units of "low cost" class. In 2020 we have already started production of JETAs, JETDis, TESDs to fill our stock. The goal is to provide as fast as possible delivery time. They successfully replace units of previously produced generation TESA, JETA and, in some cases, they can replace popular, but more expensive JETA-LP, as well as JETDi, TESD, TESND series. We are sure that you will be pleased with the ability of new JETDis, TESDs to operate with input voltage range of 9-80 VDC (100 VDC transient).
    2. A group of AC/DC and DC/DC units for critical missions (maximum power, planar design, ultra- wide temperature ranges on request with maximum of service functions) - JETA-LP, JETNA-LP, TESAV(H), TESND, JETDiR and JETDi.
    3. A group of units for special applications, which has been developed with a set of parameters exactly according to your requirements over the past 5 years - the newest TESD-SP and classic no‑optocoupler TESD with a very large output power range, from 10 W to 1000 W!
We're looking forward to receiving your inquiries and letters about your needs in 2021! At the moment we updating our website and soon you will find published new series of products in its relevant product sections. Do not wait - contact us!

Happy New Year, friends!


Happy New Year, friends, brothers-developers, generous buyers! Very hard year of 2020 ends for year 2021 to begin. A new year of hope for health, new technologies in our lives. It was not for nothing that we tried to work in a remote access and took lessons on the Internet from the most successful and talented businessmen!
Best of luck to everyone! Best of luck!
Our team in Czech republic did a lot, in preparation for 2021. We significantly widened our portfolio and started with the most fearful – publishing information about new power supplies on our website. Very soon our datasheets and description will be updated and new series will see the light. Yes, it's a lot of word – to predict future of the company a year ahead! Thanks to the Czech government, helping in the hard times, we've been motivated for technical and technologic feats during new products creation.
What's new?
The flagships of our most complex products have been mastered for serial production. Developments of 2019-2020: new fanless planar 1-phase and 3-phase JETA3000-LP and JETNA5000-LP units, fully modernized TESAV (TESH) series (implemented synchronous rectification - which is very difficult to apply with substantial input mains voltage fluctuations).
In 2021 year we are presenting a new cosmic era for our products, being brought into serial production are the TESD "SPACE" units. Our developers from Russia, Voronezh took part in the development of the series (our company TE "Tesla Electric").
In year 2021 you'll see completely new DC/DC units series of JETDis and TESDs. We call them budgetary ("Low Cost"), however they may please you not only by their miniature dimensions and low price, but also by ultra-wide input range of "48W" 9-80 VDC. Here we had to forget about the virus and work hard.
"Small but daring"! This is for our newest developed series - AC/DC JETAs units for 60, 120, 300, 700 and 1200 W. They also belong to the "Low Cost" class and contain optimized amount of service functions, although for the first time, for a lower priced series, we also implemented synchronous rectification!
Please follow changes on our website in the new year of 2021!
Happiness, peace of mind, luck, health to you and your loved ones!
Team of AEPS-group, Prague, Czech republic.

Even in space there is a need for energy! New series - TESD "SPACE"


Outer space is next!
Specially for Your AEPS-group team has been developing cosmic DC/DC series of power supplies called TESD "SPACE" (TESD-SP)! The series contains a broad range of units for output powers of 10 W, 20 W, 40 W, 80 W, 200 W, 300 W, 500 W and 1000 W for the input voltage range "27W" (15-50 VDC, 80 VDC 1s).
The basis used is the most popular AEPS-group series which during many years was being produced under the names MDM, MR, TESND, TESD. The units of newest series TESD "SPACE" completely preserved the dimensions and pin-outs of TESD series units.
Due to utilizing newer circuitry and special components we achieved significantly improved EMC characteristics and resilience to external acting factors. The TESD "SPACE" units use optocoupler-less feedback circuitry. Built-in input and output EMC filters notably reduce conductive interference. Distinctive feature of the series is very high efficiency for such types of the DC/DC converters of 90-94 %.
Minimal weight and maximal efficiency - factors allowing the TESD "SPACE" series to ideally fit commercial and special applications in conditions where there are high demands for reliability and resilience to external acting factors.
Very soon you'll see the TESD "SPACE" units in the selection guide of 2021, and also a separate product section for TESD "SPACE" will be published on our website.

New service for experiments


We know, how hard it is, when just beginning the project, to choose an appropriate power supply!

Every day we conduct several consultations by phone or Skype, in which we analyze all the subtle aspects of the work of our unique products. In some cases, we accept the gratitude of buyers for clarification and for saving our clients from a big loss of time.
Indeed, unfortunately, the first payment for the product by the customer is the moment of the final choice and an irretrievable money investment. For maximum service and assistance to our customers, we present a list of products in stock, which contains the latest products, as well as serial-produced products from previous years.
The list allows us, after a detailed conversation with the buyer, to offer him one or two samples for testing in their system at a very low price.
When registering you as a client, we will open a project with your individual name and will accompany you observing the necessary confidentiality.
We look forward to your requests!
- General designer Alexander Goncharov



New low-cost JETDi modification (please see JETDi datasheets) - JETDiB - is optimized in cost and characteristics. JETDiB provides similar technical characteristics as DC/DC converters of manufacturers as Traco, Aimtec, Mornsun, CUI, XPower, Recom, they are produced with nominal output power levels of 5, 6, 8, 10,15, 20 (DIP24 formfactor), 10, 12, 15, 20, 30 (1х1” formfactor), 15, 20, 30, 60 (2х1” formfactor) and 40, 60, 80, 100, 120 (¼ BRICK formfactor) W.
The units achieve high level of power densities in range 49-83 W/inch3 and unique wide operating temperature range up to -60 to +110 °С.
Price-list is shared with registered customers on request (please contact us via our contact form).

New products in selection guide


New and improved power supply units have appeared in the list of our product range. To see the update product list, please go to our selection guide via following link:



Customers inquiries-based development to increase standard AC/DC output power rating (while keeping the same dimensions) are successfully getting to the finish line.
We are glad to announce that we managed to significantly increase power density in small dimensions of JETA1200 (211x117x38 mm).
Now the new JETA1500 unit has 26 W/in3 in the dimensions of JETA1200.
Looking forward to receiving your inquiries. Orders are accepted.



JETA-LP lowprofile units series has a new member - JETA2000-LP, having increased power of 2 kW in the same dimensions as JETA1500-LP (250x140x36 mm).
At the moment both older JETA1500-LP and younger JETA2000-LP are available to order.



Testing of new power supplies based on JETA2000 prototype has been completed.
After optimization of circuit and design solutions, while keeping dimensions of 250x140x39 mm, maximal power was increased to 2500 W.
As a result, power density of new JETA2500 unit is 30 W/in3.
Both JETA2000 and its more powerful modification JETA2500 are now available to order.



Complete modernization of the popular TESD series with an output power of 10 to 500 W, supplied to support serial consumer production, has been completed.
New opportunities to create additional special functions are made possible by the use of optoelectronic devices with high resistance to ionizing radiation. In addition, it helps eliminate known shortcomings, such as low reliability of implementing isolating transformers in feedback circuits. However, a standard transformer-based feedback design is not excluded.
TESD units are designed in traditional reinforced cases with flanges that allow operation in conditions of strong vibrations and mechanical shocks.
Optimal for use in aplications 1, 2, 3, 4, 6, 11.



The newest DC/DC converters TESND series are designed to operate in harsh environmental conditions and their parameters are comparable to the units parameters of such manufacturers as VPT, SinQor, Traco, Power-One, Aimtec, Mornsun, CUI, XPower, Interpoint, Recom, Gaia (incl. some models with opportunity of pin-to-pin replacement).
The units have high power density from 27 to 142 W/inch³ and they are designed for DC input typical for decentralized power supply systems with use of batteries 12, 24, 48 and 60 VDC (input voltage ranges: 10.2...15 VDC, 10.2...30 VDC, 20...30 VDC, 20...60 VDC, 20...40 VDC, 15...50 VDC or 36...75 VDC).
Units output power is from 10 up to 1 200 W in several case modifications (execution JETDi, JETDiR). The various temperature ranges are available (incl. extreme temperature range from -60 to +130 °С.
The units of the TESND series have a high efficiency of up to 92%, their design with mounting flanges increases vibration resistance and impact durability.
Identical circuitry and component solutions were used for all TESND, JETDi and JETDiR series, which provides our customers a unique opportunity to choose from 3 housing (cases) options. Case variants are follow

JETA-LP, AC/DC power supplies in ultra-low profile cases


The newest JETA-LP series AC/DC power supplies is ready for ordering. This units are available with output power from 100 W to 2 500 W in ultralow-profile cases (18-36 mm, depending on power) and have high power density.
You can learn about the key advantages of low-profile AC/DC power supplies and the benefits they bring You in our essay About planarity.



Let us introduce the new products JETNA-HF:
Three-phase input AC/DC power supplies with input voltage range 115/200 - 220 (187-253 VAC, 3 ph., 400 Hz), designed for harsh environment with output power from 1 000 W to 5 000 W and case operating temperature range up to -60° to +100° C.

JETDiR new product series


The newest JETDiR series is ready for ordering. These units provide output power from 15 W up to 600 W (with power density of 49-106 W/In³) and they are designed for DC input voltage ranges typical for decentralized power supply systems with use of batteries: 10.2-15 VDC, 10.2-30 VDC, 20-30 VDC, 20-60 VDC, 20-40 VDC, 15-50 VDC or 36-75 VDC.
JETDiR DC/DC converters have efficiency up to 92%, the extreme case operating temperature range up to -60 ... +130 °C and are available for ordering in robust aluminum cases, with mounting holes which can hide screw heads inside case profileю
Additional models up to 120 W have 3 case types and several versions of the height case for different applications.
Samples are available for ordering on preferential terms!

JETNA-LP new product series


Let our company present to you our next generation of three-phase input AC/DC power supplies series JETNA-LP, designed for harsh environment with output power from 1 000 W to 5 000 W.
Modernizing the product series, we focused on the latest trends in power supplies design and the most modern components choice, thanks to which we managed to create even more low-profile units with high power density values:
JETNA1000-LP (1 000 W) - 28 mm profile, energy density 36 W/inch³
JETNA2000-LP (2,000 W) - 34 mm profile, energy density 39 W/inch³
JETNA3000-LP (3,000 W) - 36 mm profile, energy density 39 W/inch³
JETNA5000-LP (5,000 W) - 38 mm profile, energy density 42 W/inch³
The JETNA-LP series is ready for ordering and we hope that this new generation units will continue to help you in creating and building of compact and reliable power systems for challenging applications.

Upgraded series TESD/TESND


Dear colleagues!

We have upgraded DC/DC converters of the popular TESD series, which pin-to-pin replace other companies products well known in the Russian market.

We managed to significantly increase the efficiency of these modules (for some models up to 92%), while their price remained the same!

In addition, a new series of TESND modules with increased energy density has been developed and mastered, which, in comparison with TESD modules, will allow you to get the same output power in much smaller dimensions.

Contact us to order samples!

Electronica 2018


Dear colleagues!

AEPS-group took part in Electronica 2018, the largest European exhibition of the electronic industry, which was held in Munich from November 13 to 16, 2018.

A number of presentations and negotiations were held with customers, as well as with current and potential distributors of our products in Europe and Russia, during which we proposed more favorable terms of cooperation according to the latest trends in cost optimization and shorter delivery times.

Also, new promising product lines were presented to visitors.

If you are also interested in our offer with new lower prices with a minimum delivery time, please contact us in the section Contact.

New products


Dear colleagues!

We are glad to inform you can order the new products – AC/DC Power Supplies whit output power 5 000 W.
In addition, we start to produce the power supplies blocks (based on these modules) in a metal casing with an integrated cooling system that have a high-speed feedback function and an advanced control and diagnostics system via the RS422 protocol.



Dear Colleagues!

Thank you for visiting of our booth at the exhibition Expo Electronica 2018 in Moscow. We appreciate your interest to our products and the positive feedback from you.

For those who were not able to visit the exhibition, we suggest to pay attention to our latest developments in section AC/DC, DC/DC, Power blocks and new LP units - ultralow profile AC/DC power supplies 2 500 W with profile 24 mm and 1 000 W (3 ph) with profile 16 mm.

Photo report is here.



Dear Clients and Partners!

We would like to invite you to visit our stand at ExpoElectronica 2018.
The exhibition will be occasion to get the latest information about the products we offer – DC/DC converters, AC/DC power supplies and power supplies systems.

The event will be held from 17th to 19th of April, 2018 (10:00-18:00).
Place: Crocus Expo, 65-66 km Moscow City Ring (MKAD), Moscow, Russia.
Our stand D628 (pavilion 3, hall 14).

We will be glad to see you among our guests!

New AC/DC Power Supply Block


Dear colleagues!

We are glad to inform you can order the new product – AC/DC Power Supply Block. Those units convert 3-phase 400 Hz 220 VAC input into VDC output of 300 to 400 VDC. Specialized feedback circuit results in rapid transient recovery time for impulse load operation of up to 2.5 kHz pulse frequency. Communication over RS422 allows sending diagnostics to customer's equipment and receiving commands to operate the power block and set its output voltage real-time.

Supercomputers instead of oil...


The publication in the material "Supercomputers instead of oil - How Russia is trying to get off the raw needle" told about the sales of domestic supercomputers produced by the company "T-platform" to Europe, specifically to Germany, worth more than 469 million dollars. We would like to note that our products are the part of these computers.

Happy New Year!


Merry Christmas and Happy New Year to all our customers and colleagues! We wish you success, financial stability and good health!

We ourselves could make a gift already on the eve of the holidays - the group of companies AEPS-group has expanded.

Now, apart from the firms in the Czech Republic (Alexander Electric, Goncharov Electric JET, AEPS-group) and Moscow (TE, VIP AG, AEPS Group), it also included the new company, established in conjunction with a very respected partner from the traditional capital of Russian electronics - the city of Voronezh.

Follow the updates on the site!

Forbes TOP-10


We are proud that the authoritative publication marked our firm among TOP-10 companies capable of successfully competing with the West:

AEPS Group
Founder: Alexander Goncharov
Year of Foundation: 2003
Headquarters: Prague, Czech Republic
Products: secondary power supplies and power converters
Scope: telecommunications, engineering, aviation

History: Alexander Goncharov founded the first company of the future group in 1991. Each of the companies is responsible for part of the technological process. In 2004, he decided to start a business in the Czech Republic: it was cheaper to organize production there. At the same time, production capacities were preserved at home. The group produces power supplies with a power from 3 W to 10 kW that are capable of operating at temperatures from -60 to +125 °С, as well as related electronics.

Seminar in Voronezh


Dear colleagues!

Thank you for visiting the seminar, which was held at your request with the personal participation of our General Designer Alexander Goncharov.

The questions asked and your participation in the discussions were very useful and interesting for us.

We are looking forward to your visit!

New modification of AC/DC converters


Dear colleagues!

We are glad to inform you can order the new modification of units JETNA3000 and JETNA5000.

Those units have not only standard options for this type of AC/DC Power supplies (feedback, parallel work, trimming and full complex protection inc. the protection for overheating), but have the function of control by normalized signal of direct current.