STMicroelectronics 80 W ESBT quasi-resonant wide-range SMPS demonstration board based on the L6565 for 3-phase applications STMicroelectron STEVAL-ISA019V3 Data Sheet

   

   

   

For further information contact your local STMicroelectronics sales office.

April 2011

Doc ID 018778 Rev 1

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80 W ESBT quasi-resonant wide-range SMPS demonstration

board based on the L6565 for 3-phase applications

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3-phase 80 W auxiliary output SMPS 

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Quasi-resonant SMPS 

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Input: 180 V

AC 

to 600 V

AC

 

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Output voltage: 24 V, 3.3 A 

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Maximum output power: 80 W 

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Efficiency > 80 % 

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Switching frequency > 50 kHz 

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Safety compliant according to EN60950 

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Feedback: secondary regulation 

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RoHS compliant 

The STEVAL-ISA019V3 demonstration board is a 
3-phase auxiliary power supply with an 80 W dual 
output SMPS, using the L6565 PWM driver and 
the STC04IE170HP ESBT as the main switch. 
The combination of these ST parts provides a 
high-efficiency solution for high DC input voltage, 
a typical requirement of any 3-phase application.

The necessity to handle both high output power 
and wide input voltage is resolved using a flyback 
stage working in mixed operation mode: 
discontinuous and continuous.