Over the decades, DAVE Embedded Systems has been sharpening a tight qualification process for the products the company has been commissioned to design and manufacture. On one hand, this This process is relentlessly engineered to cope with the challenging requirements of industrial applications operating in harsh environments. On the other hand, it tackles and the ever-increasing complexity of system-on-chips powering these products themselvesare based on.

To make this test possible, DAVE Embedded Systems designed an ad hoc smart bench power supply denoted as PPSU. PPSU is used to power the DUT, which is the electronic device undert under test. You can think of PPSU as a programmable power waveform generator that is also able to verify the health status of the DUT. PPSU can generate an arbitrary supply voltage that exhibits purposely anomalies such as glitches of different duration and non-monotonic ramps. A robust product is expected to be resilient against these stressing conditions. This means that it is supposed not to be affected at all or to perform properly a warm reboot cycle properly when if it is inevitable that a hardware reset is triggered. Of course, the expected behaviour behavior strongly depends on the nature and severity of the injected anomalyanomalies. After the anomaly is injected, PPSU verifies whether the DUT is perating operating properly or not and logs the test result. PPSU can also be programmed to run the test cycle repeatedly for the desired number of iterations. As it operates in the industrial temperature range, it can be

TBD  Combining several test waveforms of different types (1) and running these test over the entire DUT's operating temperature range allow to achieve good confidence that the product's PSU will not fail in the field because of "misbehaving" power supplies. AdditionallyFurthermore, these tests are extremely useful to detect problems due to erroneous hardware design errors or more subtle situations like the one described in [https://www.st.com/resource/en/application_note/an5861-stpmic1-auto-turnon-stmicroelectronics.pdf this application note] by ST MicroelectonicsMicroelectronics. During Thank to the use of PPSU, during the qualification of the [[ETRA SBC/General Information/Block Diagram and Features|ETRA Single Board Computer]], we were able to spot the issue illustrated in the application note before its publication.