MCU from Fujitsu Semiconductor for AC/DC and DC/DC control of EV cars

Fujitsu Semiconductor has announced new 32-bit microcontroller MB91F552 for automotive applications such as control of power supply system for batteries as well as power transmission circuitry in hybrid electric vehicles (HEV). MB91F552 features 200MHz PWM module and supports peak current mode control. This MCU is designed to manage the power supply control system sub-units such as DC/DC converters and DC/AC inverters to ensure stable voltage levels while supporting fluctuations in battery voltage and load fluctuations in the components to which power is being supplied. Product Features as provided by Fujitsu: Incorporates digital power supply control onto a single general-purpose microcontroller chip In addition to CAN, multi-function serial and other network control functions, MB91F552 incorporates a host of optimal functions for digital power supply control—including a 12-bit A/D converter with 4-channel simultaneous sampling, a floating-point unit (FPU), and a 200MHz digital PWM module—all on a single microcontroller chip. The new chip can easily perform digital power supply control, such as the digitalization of output voltage and other analog signal feedback, as well as computation-based PWM waveform generation. Helps significantly improve power supply system stability through the combination of digital power supply control and peak current mode control The compar...