We present in this paper the study and the design of a voltage controlled oscillator (VCO) for an embedded system to diagnose the PEM fuel cell. Some problems related to fuel cells used in the electric vehicle
All of the clock signals in the system are driven by two crystal oscillators: the main oscillator runs at 24 MHz, and the real-time-clock oscillator, which runs at 32768 Hz. The real-time-clock oscillator is used only to provide a signal to the real-time-clock device. The main clock ...
The internal connection between internal oscillators and embedded timers in the STM32L4 Series microcontroller family is used for this purpose. The timer is clocked using the system clock source and configured in input capture mode. The captured time between two consecu...
FPGAs, and CPLDs) are based on clocked logic, requiring a timing source. Depending on the frequency accuracy requirements, some employ oscillators while others use off-the-shelf quartz crystals in conjunction with the builtin oscillator circuit embedded in most microcontrollers and microprocessors....
The digital computer systems must contain an oscillator circuit for its functioning. The oscillator circuit is often regarded as the 'heartbeat' of an embedded system. Any malfunctioning of the oscillator will directly have an impact in the normal functioning of the system. The system depends upon...
We report here resonant optical driving of a high-quality QD embedded in a mechanical system. We use the resonance fluorescence (RF) signal to detect sub-picometre displacements of the mechanical modes at cryogenic temperature by measuring the fluctuations in the single-photon count rate, an ameli...
Ophir also works with laser system developers to achieve embedded beam diagnostics to monitor system performance as an OEM solution.Resources Data Sheets Synergy Datasheet (371.8 kB, PDF) Drawings & CAD Synergy Dimensions (176.4 kB, PDF) ...
Other Ophir sensors and meters may also be suitable for the FemtoTrain, depending on application. Ophir also works with laser system developers to achieve embedded beam diagnostics to monitor system performance as an OEM solution.Resources Data Sheets femtoTrain Datasheet (622 kB, PDF) Drawings...
In the event that the oscillator stops operating (e.g. due to a broken crystal after heavy vibration or a short-circuit), the system will automatically switch to the FRC clock source. This ensures that the PIC32 can still continue to operate, albeit at a fraction of the desired speed. ...
dSPACE generates embedded code from Simulink model for real-time implementation. In our application, we measure the analog voltage signals of x1,m and x1,s. The measured analog signals are then pass through the analog-to-digital converter of the dSPACE board. These digital signals are then ...