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Reliable power supplies for telescopes

Reaching for the stars

Power supplies for the most accurate telescopes in the world

The cameras of the 12-meter telescopes are being powered by PULS DIN rail power supplies. (Source: CTA Observatory / G. Pérez, IAC, SMM / flickr.com)

The Cherenkov Telescope Array Project (CTA) is currently one of the most ambitious projects in astrophysics. The result will be the largest and most accurate gamma ray observatory in the world. DIN rail power supplies from PULS play a decisive role in this project.

The CTA observatory consists of more than 100 telescopes of various sizes – with 4, 12 and 23m mirror diameters – installed in the northern and southern hemispheres. These highly sensitive telescopes enable scientists to locate high-energy gamma rays throughout the universe. The telescopes are about ten times more accurate than existing instruments. As a result, researchers expect groundbreaking new information on inter- and extragalactic objects. A completely reliable and low-maintenance operation of the telescopes in various different climate zones is decisive for the success of this project. The selection of the right power supply plays an important role here.

PULS DIN rail power supplies are known for their high efficiency values, compact design, long lifetime and robustness in harsh ambient conditions. In the CTA project, these are the key requirements for the power supplies. The devices are supposed to guarantee the constant energy supply of the telescopes for years to come.

Looking for answers using nearly 1800 pixels

The CTA project consists of over 100 telescopes in various sizes. (Source: CTA Observatory / G. Pérez, IAC, SMM / flickr.com)

The goal of the CTA project is to answer some of the unresolved questions in astrophysics. For example, the observatory will help scientists to understand the effects of high-energy particles in the evolution of cosmic systems and to search the cosmos for new VHE gamma-ray sources in the future.

Prof. Ulrich Straumann and his team from the Physics Institute of the University of Zurich are also involved in this ambitious project. Together with other international teams, they are working on the development of a camera for the 12m telescope. The telescope therefore has a mirror with 12m diameter and a focal length of 16m.

The camera, which is installed directly in the focal point of the huge telescope, weighs almost two tons and consists of 147 modules with 12 light-sensitive detectors each. In addition to this, there is a built-in amplifier as well as digitising electronics, which provide the option for decentralized data storage. The entire camera contains nearly 1800 individual pixels. The field of view of the telescope is approximately 7°, resulting in a sensitive, hexagonal camera surface with a diameter of 2m.

Power supplies with high efficiency, compact size and long lifetime are crucial

For a project of this size and scientific scope, selecting the most efficient power supplies is particularly important. After intensive research, the developers of the University of Zurich decided on the DIN rail power supplies from PULS. The AC/DC converters CPS20.241 (24V / 20A) and QT40.241 (24V / 40A) as well as the the MOSFET redundancy modules YR40.242 and YR80.241 are used in the control cabinet of the camera. As a precaution, the power supplies are installed in a redundant system. This ensures the availability of the camera at all times – despite the harsh environmental conditions.

The Swiss scientists particularly praised the high efficiency (QT40.241: 95.3%, CPS20.241: 94%), small width (QT40.241: 110mm, CPS20.241: 65mm) and long minimum service life (QT40.241: >7.5 years, CPS20.241: >10 years, both at full load and +40°C ambient temperature) of the PULS DIN rail power supplies. “With the PULS power supplies, we can easily achieve the required output power of 4.5kW within the available space,” explains Dr. Achim Vollhardt, who is involved in the camera project as an Electronics Engineer.

His colleague, Senior Scientist Dr. Arno Gadola adds: “The documentation of the power supplies is very detailed and contains extensive information about their lifetime expectancy. This way we can easily estimate the lifetime of the power supplies under our operating conditions.”

24V, 20A DIN rail power supply CPS20.241

CPS20.241

1-phase DIN-rail power supply

24V, 20A


Features

  • AC 100-240V wide-range input
  • Width only 65mm
  • 94.0% efficiency
  • ATEX and IECEx approved
  • 20% output power reserves
  • Full power between -25°C and +60°C
  • DC-OK relay contact
  • Current sharing feature for parallel use

Learn more about the CPS20.241

24V, 40A 3-phase DIN rail power supply QT40.241

QT40.241

3-phase DIN-rail power supply

24V, 40A


Features

  • 3AC 380-480V wide-range input
  • Three input fuses included
  • Width only 110mm
  • 95.3% efficiency
  • 50% BonusPower®, 1440W for up to 4s
  • Full power between -25°C and +60°C
  • Remote control of output voltage

Learn more about the QT40.241

MOSFET redundancy module YR40.242

YR40.242

MOSFET redundancy module

24V, 40A


Features

  • For N+1 and 1+1 redundant systems
  • Dual input with single output
  • 160% (65A) peak load capability
  • Reverse input polarity protection
  • Full power between -40°C and +60°C
  • Width only 36mm

More about the YR40.242

MOSFET redundancy module YR80.241

YR80.241

MOSFET redundancy module

24V, 80A


Features

  • For N+1 and 1+1 redundant systems
  • Dual input with single output
  • 160% (130A) Peak load capability
  • Reverse input polarity protection
  • Full power between -40°C and +70°C
  • Width only 46mm

More about the YR80.241

Full potential in harsh ambient conditions

The CTA project is an application that demands everything from power supplies: challenging technical and climatic conditions, the highest demands on efficiency, and a global application with the lowest possible maintenance effort. But it is precisely in this environment that PULS power supplies show their full potential.

For the Swiss PULS Electronic GmbH, the close cooperation with the University of Zurich in conjunction with the CTA gamma-ray observatory is a particularly exciting project.

“If our power supplies can contribute to our understanding of the universe and our existence, then this is not only a technical and economic success, but also a great personal pleasure and satisfaction for me and our company,” says Heinz Setz, Managing Director of PULS in Switzerland.

Learn more:

The CTA project intends to install over 100 telescopes in various sizes throughout the northern and southern hemispheres. (Source: CTA Observatory / G. Pérez, IAC, SMM / flickr.com)

Various telescopes of the CTA project. (Source: CTA Observatory / G. Pérez, IAC, SMM / flickr.com)

New headquarters in Munich

New headquarters in Munich

Design thinking led to a new working environment

Developing innovations also requires an appropriate analogue workspace concept. The work environment must give employees the option to work together in interdisciplinary teams, work visually, test ideas, observe intensive phases of concentration, create prototypes, and much more.

This results in future-proof, user-oriented solutions. In short: an innovative work environment must offer genuine space for Design Thinking.


From prototype to an innovative working environment


We use Design Thinking in two completely different ways. On the one hand, we were guided by the Design Thinking approach when the new premises were being developed. The starting point was to understand employee needs and working methods. In addition, the workplace concepts of other companies were analysed both for inspiration and to avoid repeating common mistakes.

Based on these observations, a prototype was developed  and a room in the old office building was rebuilt accordingly. In the prototype room, the employees – as the target group – had the opportunity to test furniture and lighting concepts, evaluate floor coverings, follow sketches from architects and carpenters, and monitor project progress on whiteboards; feedback was explicitly requested at all stages.

The experience gained and suggestions from employees were directly incorporated into the development phase of the new premises. The result is a unique work environment that is currently in the advanced stages of “refinement”.

Golden A'Design Award 2018

Award winning concept


The team of the architecture and design studio Evolution Design was honored with the Golden A’Design Award.
They were awarded for their design of the new PULS headquarters in Munich.

PULS stories on the wall

Design thinking meeting

Chcete-li aktivovat externí video, klikněte na odkaz. Aktivací vložených videí se data přenášejí příslušnému poskytovateli. Další informace naleznete v našich zásadách ochrany osobních údajů. Zobrazit obsah

Creativity desired


The new world of work is itself the result of a Design Thinking process. It is therefore only logical that the rooms encourage employees to follow this innovative approach themselves.

The environment invites you to engage in creative work. Many walls can be written on or are magnetic. The Project Area is the perfect meeting place for team-working in larger groups. There are also numerous small meeting rooms and break out areas available for 2-3 persons; these are not bookable and can be used at any time.


R&D Beach Bar

Innovation needs focus


Attention has also been paid to concentrated individual working and desk sharing has been deliberately avoided. The personal desk or developer workstation, which is also height-adjustable, remains the base station for every employee. Employees can find an even more peaceful environment in the quiet spaces, such as the small library. In these quiet spaces there are no telephones or mobile phone calls, and even loud conversations are a no-no.

A modern nap room allows staff to take time to slow down and relax. Here, employees can get comfortable in a massage or relaxation chair to recharge their batteries with a quick nap.

Naturally, attention has been paid to digital technology across the entire working environment. Employees can connect to their desktop on their workstation via any screen and work together with their colleagues in Munich, and thanks to video conferencing systems work on projects with their global teams.

R&D workstation

PULS nap-room

Innovative design in every detail

Form follows function


The great innovative power that drives PULS in developing each power supply is evident in the design elements of the new working environment. Every detail – whether visible or hidden – has received special attention; nothing was left to chance.

Even the lighting concept for the workstations is based on a joint development by our CEO Bernhard Erdl and the designer Tobias Grau. The cabinets and sideboards were also developed in-house.

This consistency of detail runs across both floors. The result is a coherent overall picture of modern shapes and colours featuring the highest level of functionality.

Design thinking in R&D

Rubik’s cube solving machine

Twisting toward possibilities

Rubik’s cube solving machine

Together we can make magic happen


Surely everyone has already tried to solve a Rubik’s cube at some point.

And surely everyone´s first attempt looked pretty similar. It usually ends in vain as you find yourself looking at a chaotic color pattern of cubies, although you think you have already tried every possible combination.

But do you want to know the actual number of viable combinations to a Rubrik´s cube?

Well, it is quite an extensive number let me tell you that. To be precise the total number is 43,252,003,274,489,856,000, which is about 43.25 quintillion.

Now let´s put this into perspective. If you would try out one combination every second, you would have tried all of them after 1.37 trillion years. That is nearly equivalent to the age of the universe times a hundred.

Chcete-li aktivovat externí video, klikněte na odkaz. Aktivací vložených videí se data přenášejí příslušnému poskytovateli. Další informace naleznete v našich zásadách ochrany osobních údajů. Zobrazit obsah

Twisting up mechatronics and automation


We at PULS, strive for continuous innovation and therefore strongly want to support young generations in the process of becoming creative and successful entrepreneurs.

In a world, where information overload is an everyday topic, we think it is important to focus on meaningful achievements that bring a little magic to our lives.

This is why, we would like to share this interesting and inspiring story with you today:

This story is about four young men studying mechatronics and automation at the University Bielefeld. Tom Töws, Matthias Risse, Jan Ewerszumrode und Laurids Wetzel have decided to bring some magic to their module on mechatronic systems, by paying special attention to the Rubik´s Cube.

The goal of this project being to develop and optimize a machine that solves this magic cube automatically.

The idea and concept were initiated by their fellow students, who could however not finish it entirely due to lacking budgets.

CP20.241 brings the machine to life


And this is exactly where PULS came in and could make a contribution to this special innovation.

Hence, we have sponsored one of our DIN-rail power supplies for 1-phase systems. The CP20.241 is a new product with 24V and 20A, which was able to provide the correct dimensions to successfully implement the project.

Features such as its compact size, high efficiency values as well as the optimized cooling of the device were of great help to the young team of engineers.

If you would like to get some more information on this product please refer to this page.

Bringing solutions to high gear


After three months of hard work, intensive brainstorming and a lot of teamwork it was finally done. Problems for instance were things like the recording of the state of the cube via image processing, the control of stepper motors for turning the cube sides and a complex manual mounting of the cube.

But where there is a will, there is a way. Despite all the obstacles their dedication and diligence had finally paid off. An extended remake now takes on the shape of the developed machine, which is of excellent quality and meets all the necessary requirements to be used at industry fairs.

On top of this, the team has established a high-quality and robust industrial design.

Now this part is where the magic happens:

The Rubik’s or magic cube can ideally be solved at a speed of 15 moves per second. The underlying solution algorithm requires between 10 and 35 turns. In the best case, the cube can therefore be solved in less than a second and can therefore compete with professional approaches and solutions.

Magic³


We want to congratulate this young team of innovators on their successful project and are happy to have been a small part of it.

We are hoping for many more of these wonderful initiatives, as this topic is predicted to become a big part of the future.

And of course, we are all striving for a magical future characterized by creativity, drive and innovation.

Power supply race car

Power supply for a race car

The fastest PULS power supply ever

Our CT10.241 accelerates from 0 to 100 km/h in only 2 seconds and achieves a highspeed of 120 km/h. This is pretty fast for an industrial DIN rail power supply.

The WHZ racing team and its outrageously fast electronic sports car “eRnst” make this possible. Let’s see how much effort and commitment the 50 students of the University of Applied Sciences Zwickau put in this long-term project.

Chcete-li aktivovat externí video, klikněte na odkaz. Aktivací vložených videí se data přenášejí příslušnému poskytovateli. Další informace naleznete v našich zásadách ochrany osobních údajů. Zobrazit obsah


Learn more about the CT10.241

Click on the CT10.241 in the middle of the picture above to learn more about the standard DIN rail power supply.

Race car construction


The electronic race car eRnst is already the eleventh car of the WHZ racing team. It is the impressive result of 10 years experience in the formula student competition. And it is pure high-tech!

It is equipped with a four-wheel drive and some brand new features – including four-wheel steering and a battery cooling system. The construction team focused on building a reliable and also lightweight car of only 195kg. To achieve the overall reliability of the car, it is extremely important to have an absolutely solid electrical board system. For several years, the students trust in the robust and reliable PULS power supplies to supply the board system of their race cars.

They use a CT10.241 as a DC/DC converter. The unit converts the 600V battery voltage into a 24V voltage for the board system. With its small size of only 62mm the CT10 fits perfectly into the battery box. However, its characteristical blue aluminium housing had to be removed – which makes it look – well – pretty naked.

The CT10 has to endure very harsh conditions in the race car due to the extreme temperatures and heavy shock and vibration. But the students confirmed that no PULS power supply has ever failed. The reliability and flexibility of the CT10 even under such unusual circumstances is amazing.

Formula Student


However, even the most beautiful car is of no use if it fails to transfer the performance onto the track. Every year, the racing competition Formula Student gives the students the possibility to prove the performance, safety, business concept and – of course – the speed of their little racers.

The events take part on the most famous racetracks across Europe, which are home to Formula 1, DTM and MotoGP. Just to name a few: Silverstone (UK), Barcelona (Spain), Hockenheim (Germany) and Spielberg (Austria).

Thanks to the WHZ racing team, PULS can proudly say: “Our power supply raced them all!”

Cars, teams and tracks


Do you want to learn more about the student racing community?

Here are some informative links:

Power for makers

Power supplies for start-ups

Power for makers

MakerSpaces are a dream come true for every inventor. Tools, machines, sparks, iron filings and like-minded people make it such a cool place to be!

But there is much more to the MakerSpace than a workshop for private handicraft: every corner is filled with innovations and technology waiting to be discovered. For example, one team is working energetically on a prototype of a transportation capsule for Elon Musk’s Hyperloop.

Thanks to these committed projects, and especially the creative people behind them, the MakerSpace is one of the most important meeting places of the regional start-up scenes.

Many start-up and maker projects need to power up the electronic components of their inventions. Power supplies are, therefore, quite in demand with the makers. That’s why PULS has displayed some of its DIN rail power supplies in various MakerSpaces and offers free samples for many projects.



Chcete-li aktivovat externí video, klikněte na odkaz. Aktivací vložených videí se data přenášejí příslušnému poskytovateli. Další informace naleznete v našich zásadách ochrany osobních údajů. Zobrazit obsah

Electronics Lab in Munich


The Electronics Lab provides machines and know-how for prototyping.

Experienced trainers pass on their knowledge to makers during regular workshops, starting with the basics, such as soldering and the correct application of measuring equipment to more complex tasks, such as PCB manufacturing and assembly.

The Electronics Lab also houses the PULS Power Bar. Makers can check out samples of the PULS power supplies and request free units for their prototypes by scanning a QR code.

MakerSpace projects


The PULS Power Bar is already very popular. More and more makers are requesting PULS power supplies for their prototypes. Our power supplies are already integrated in the following exciting maker projects.

#1 Variobed

Maker:
Florian Schmid

Integrated PULS power supply:
CS5.241 | 24V, 5A single-phase DIN rail power supply

Application:
“My bed is a self-made construction that I can lift up to the ceiling electrically, so I have more space in my room. So far, I had a Meanwell power supply in use, but it broke recently. Now I am pleased with the PULS CS5. I’m sure that it will last longer.”

Chcete-li aktivovat externí video, klikněte na odkaz. Aktivací vložených videí se data přenášejí příslušnému poskytovateli. Další informace naleznete v našich zásadách ochrany osobních údajů. Zobrazit obsah

#2 Race car

Maker team:
TUfast e. V. Racingteam

Integrated PULS power supply:
CP10.121 | 12V, 16A single-phase DIN rail power supply

Application:
The power supply is being used in the latest TUfast race car. The team will start with this setup in the upcoming Formula Student season.

Power supplies for your prototypes


You are a dedicated maker or a young start-up and need power supplies for your prototypes? No problem!

Get in touch with us and tell us about your project. We will check how we can support you. Of course, this offer also applies to German and Austrian start-ups outside of Munich.


Community, workshops, events


The MakerSpace is all about cooperation, creative exchange, sharing experiences, learning from mistakes and much more. Therefore, the MakerSpace teams provide interesting framework programs. The following activities are currently planned in the MakerSpaces that PULS supports:

UnternehmerTUM MakerSpace in Munich:

Happylab MakerSpace in Vienna:

MakerSpace Amstetten:

  • Events
    Opportunities for collaborative work in a technical environment

MakerSpace HTL Hollabrunn:

  • Website
    Community for makers, upcyclers and tinkerers