AMSEL Amplifier

#Master Student Project of a #Powerelectronic and #Microelectronic System @ElectronicsDrv and @HS_Reutlingen.
Project: AMSEL Amplifier

#ClassD #GaN #PCB #ASIC

[AMSEL Amplifier @AMSEL_Amplifier]

Currently, we are working on a new half-bridge power module. We are using @altium's PDN analyzer to investigate the current density in the tracks and vias.

#pcb #powerelectronics #microelectronics #GaN #altium

[AMSEL Amplifier @AMSEL_Amplifier]

We can rework the finished ASICs with the laser. For example, conductor paths in the top metal layer can be cut through. But the setup can also be used to view the structures:

#Powerelectronic #Microelectronic #ClassD #GaN #ASIC #PCB @ElectronicsDrv
and @HS_Reutlingen

[AMSEL Amplifier @AMSEL_Amplifier]

The first oscilloscope recordings of the double pulse test. The switch current is measured with the help of an OP, which amplifies the voltage drop from a shunt resistor.
#pcb #powerelectronics #microelectronics #GaN

[AMSEL Amplifier @AMSEL_Amplifier]

Here are the first results of the double pulse test to characterize the GaN HEMT half-bridge modules. Details will follow.
#pcb #powerelectronics #microelectronics #GaN

[AMSEL Amplifier @AMSEL_Amplifier]

We have developed a half-bridge module specifically to perform a double-pulse test of EPC2152 GaN HEMTs from @EPC_Corp. The current is measured via a shunt resistor, nevertheless we paid attention to a small power loop. Stay tuned!
#pcb #powerelectronics #microelectronics #GaN

[AMSEL Amplifier @AMSEL_Amplifier]

First attempts of double pulse measurements to characterize the GaN HEMT half-bridge modules.

#powerelectronics #microelectronics #pcb #GaN #classD #ASIC @ElectronicsDrv and @HS_Reutlingen

[AMSEL Amplifier @AMSEL_Amplifier]

In addition, holes can be drilled, reflow soldering and solder paste can be applied.
#pcb #powerelectronics #microelectronics #GaN #ASIC @voltera_io

[AMSEL Amplifier @AMSEL_Amplifier]

Today we used the @voltera_io V-One PCB printer. The V-One can print conductive ink onto a substrate. Great for creating PCB prototypes in one afternoon.

#pcb #powerelectronics #microelectronics #GaN #ASIC @ElectronicsDrv

[AMSEL Amplifier @AMSEL_Amplifier]

The assembly and the measurements are progressing. Here is a small insight into the laboratory work. Stay tuned!

#Powerelectronic #Microelectronic #ClassD #GaN #ASIC #PCB @ElectronicsDrv and @HS_Reutlingen

[AMSEL Amplifier @AMSEL_Amplifier]

Today we were in the lab again. New amplifier board assembly and debugging of the GaN FET class D amplifier.

#powerelectronics #microelectronics #pcb #GaN #classD #ASIC @ElectronicsDrv and @HS_Reutlingen

[AMSEL Amplifier @AMSEL_Amplifier]

In our amp board, noise couples into the gate drive signals. This sometimes led to a shout through & thus to the failure of the #GaN HEMTs. The features of the new EPC2152 version 3.1 prevents this. Thanks @EPC_Corp for the samples.
#Powerelectronic #Microelectronic #ClassD #PCB

[AMSEL Amplifier @AMSEL_Amplifier]

Today we had the opportunity to present our project at the 64th MPC Workshop. Great event to exchange information.

#powerelectronics #microelectronics #pcb #GaN #classD #MPC #Paper #presentation #workshop #ASIC #semiconductor #modulator

[E&D @[email protected] @ElectronicsDrv]

64. MPC-Workshop. Andreas Brunner präsentiert die Ergebnisse des @AMSEL_Amplifier-Projekts: einen GaN-FET-Klasse-D-HiFi-Verstärker mit eigenem Modulator-ASIC.
#Mikroelektronik #Leistungselektronik #Master @HS_Reutlingen

[AMSEL Amplifier @AMSEL_Amplifier]

Not everything always works as planned. Here you can see a #GaN half bridge exploding from @EPC_Corp. Debugging of the #ClassD amplifier is in progress. What do you think happened?

#Powerelectronic #Microelectronic #ASIC #PCB

[AMSEL Amplifier @AMSEL_Amplifier]

Currently, two members of the AMSEL team continue to work on the project to get the best out of the amplifier. #StayTuned!

#Powerelectronic #Microelectronic #ClassD #GaN #ASIC #PCB

[AMSEL Amplifier @AMSEL_Amplifier]

3D rendering of the AMSEL ASIC. The individual layers can be faded in and out and you can navigate through the chip.

#Microelectronic #ClassD #ASIC #Powerelectronic

[AMSEL Amplifier @AMSEL_Amplifier]

GaN FET Class D Hifi Amplifier, ASIC and PCB design.

#GaN rocks!

#Powerelectronic #Microelectronic #ClassD #GaN #ASIC #PCB

[E&D @[email protected] @ElectronicsDrv]

20 to 20000 Hz AC from 18-48 V DC for AC/DC. Our latest @EPC_Corp #eGaN #ClassD #HiFi amplifier designed by our Master's student team @AMSEL_Amplifier. 2 x 100 Wrms @ 8 Ω. Board size: 90 mm x 60 mm. No heatsinks.

#GaN rocks!

#Microelectronics #PowerElectronics @HS_Reutlingen

[AMSEL Amplifier @AMSEL_Amplifier]

Today we presented our project to the profs, supervisors and students of @HS_Reutlingen. This was followed by a sound check of the amplifier. The Amsel team reviewed the presentation at the barbecue afterwards.

#Powerelectronic #Microelectronic #ClassD #GaN #ASIC #PCB

[E&D @[email protected] @ElectronicsDrv]

Successful debugging of the #GaN FET #ClassD amplifier test board.
@AMSEL_Amplifier #PowerElectronics #Microelectronics @HS_Reutlingen

[AMSEL Amplifier @AMSEL_Amplifier]

The time has come. Today our amplifier board played music for the first time. Hifi class d amplifier on 90x60mm with GaN half bridges from @EPC_Corp:

#Powerelectronic #Microelectronic #ClassD #GaN #ASIC #PCB

[AMSEL Amplifier @AMSEL_Amplifier]

Test of an audio channel while monitoring the power stage with the thermal camera.
#Powerelectronic #Microelectronic #ClassD #GaN #ASIC #PCB

[E&D @[email protected] @ElectronicsDrv]

Vorsichtiger Test eines Audiokanals bei niedriger Leistung und Überwachung der Leistungsstufe mit der Thermokamera.
@AMSEL_Amplifier