MUNICH – Infineon Technologies AG in Munich is introducing the CoolSET 800- and 950-volt AC-DC integrated power stages for AC-DC converters, motor control, motor drives, https://www.militaryaerospace.com/power/article/14284484/power-battery-charging-wearable, solar energy systems, and auxiliary power supplies for home appliances.
These fixed-frequency high-voltage power supplies are housed in a DIP-7 package, and combine a pulse-width-modulation (PWM) controller integrated circuit with the CoolMOS P7 superjunction metal oxide semiconductor field-effect transistors (MOSFETs) in one package.
The power electronics devices use an avalanche-rugged superjunction MOSFET with a breakdown voltage of 950 volts to allow for a wide input voltage.
The devices enable isolated and non-isolated topologies such as flyback or buck, and operate at switching frequencies of 100 and 65 kHz. An integrated error amplifier supports direct feedback from the primary output, and minimizes design complexity.
The frequency reduction mode with soft gate driving and frequency jitter operation offers low electromagnetic interference and enhances the efficiency between mid- and light-load conditions.
The devices also support continuous conduction mode and discontinuous conduction mode. For low AC line input conditions, continuous conduction mode can achieve low conduction losses and higher efficiency to meet international regulatory standards for energy efficiency.
At the same time, the integrated MOSFET supports an ultra-wide input voltage range commonly associated with single-phase smart metering and industrial applications. In addition, the devices help to optimize the snubber circuitry to enhance efficiency and lower standby power consumption of the converter.
All devices come with a suite of protection features with auto-restart to support the power supply system in failure situations. Active burst mode improves the light-load performance and enables ultra-low standby power consumption with small and controllable output voltage ripple.
For more information contact Infineon Technologies online at www.infineon.com.
