Our basic functions are working. I.e. all blocks fulfill their functions up to the GaN half-bridge modules. The next step is to apply the bridge voltage and measure the output filter and the output signal. Here are some photos from the last days. E&D @[email protected] #Microelectronic

After our last tests of the board it was finally time to apply the bridge voltage. It was just great to see that the last months of work paid off. Here you can see a video with the first startup. Another video about high voltage tests will follow, so stay tuned! E&D @[email protected]

High voltage tests up to 150V: It was so loud that the whole floor shook, so we placed our speaker box in the hallway to work. Stay tuned for insights - The circuit board withstood it, but the speaker smelled a bit overloaded😁 E&D @[email protected] #Microelectronic #Powerelectronic

It was finally time to test the behaviour in high voltage regions. Even if it is not well audible in this video, the whole floor shook. It was also possible to go up to 150 V for a short time, but we quickly went down again to not heat up our transistors too much.E&D @[email protected]

Yesterday we had a meeting with our supervisors and professors(@ProfHennig & Ertugrul Sönmez ), where we could demonstrate our 1 kW Class D power amplifier for the first time. We are all happy and proud about what we could achieve in 12 months 😃👍 E&D @[email protected] #Microelectronic

Among further tests we are working out a data sheet for our 1 kw bass booster. On the last weekends during working sessions our mascot "Lutz" visited us and it was a lot of fun to play with him during our breaks.😃 #Microelectronics E&D @[email protected] @HS_Reutlingen

Boom! That's what it does when you operate the GaN-Systems transistors beyond their specifications. But no problem, we made more half-bridge modules and have an already finished solution on our board to handle this. Stay tuned for more infos! #Microelectronics E&D @[email protected]

Error eradication in the last days: The ground got affected repeatedly. It was due to the correct ground connection in connection with the several respective connected test tools. Finally the big performance test can start. Stay tuned! #Microelectronics E&D @[email protected]

To protect our GaN transistors at the performance test we use 2 large cooling units. These should cool down the half bridge modules with the transistors so that we have no overheating symptoms. Stay tuned for results! #Powerelectronics #Microelectronics E&D @[email protected]

We succeeded with our last test session - Our 1 kW bass booster works and meets the requirements. 1 year of work summarised in a picture with signals! Stay tuned and see how we finish the project! #1004Watt #GaN #Powerelectronics #Microelectronics E&D @[email protected] @HS_Reutlingen

Final presentation preparation! Today was the first meeting and there are many more to come. Final presentation is on 19th of April and will be uploaded to youtube. Stay tuned for the last steps of our journey! #Powerelectronics #Microelectronics E&D @[email protected] @HS_Reutlingen

While we were fine tuning our integrator of the Class D amplifier for the final presentation yesterday, we noticed an interesting scientific phenomenon. While the filled bottle was repelled by the bass speaker, the unfilled bottle was actually pulled towards it. Funny isn't it?😀

A very important point at the end of our project is the data sheet. This describes the system and contains all the information about it. Here you can see a preview of the first two pages including the summary. #Powerelectronics #Microelectronics E&D @[email protected] @HS_Reutlingen

Abschlusspräsentation des Electronics & Drives - PAPAYA-Teams zur Entwicklung eines 1 kW-Class-D-Bassverstärkers mit #GaN-Leistungstransistoren. #Leistungselektronik #Mikroelektronik #Master @HS_Reutlingen

We have made it. Final presentation is over and our system meets the requirements and even a little bit beyond. We say thank you to our professors and supervisors for the incredible support! Now it's time for the reward: its celebration time.😀 #Microelectronics E&D @[email protected]

This video shows a short summary of our project with an audio demonstration from our final presentation. We say thank you to our professors, supervisors and followers for your support! #Powerelectronics #Microelectronics E&D @[email protected] @HS_Reutlingen

While we have completed the 1 kW Class D power amplifier project, it is worth taking a look at projects E&D @[email protected] in progress. While team Electronics & Drives - RIDE is working on a smart e-motor control system, the main focus of Electronics & Drives - TIGER is on a parameter adjustable #GaN driver IC👏

Yesterday we had the open day @HS_Reutlingen . Our project manager Alexander Timm presented our 1kW Class D amplifier and answered questions. In addition, he was able to impress our visitors with the audio presentations.👍 #Powerelectronics #Microelectronics E&D @[email protected]