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1.5 kw AC-DC power supply
1.5 kw AC-DC power supply
Design specification:
Input voltage 100Vac-260Vac, 50/60 Hz
High input power factor (>98%)
Low EMI (In accordance with CISPR 22: EN 55022 EMC Standard)
Output voltage 48V DC +/-2 (require regulation without disconnecting or any voltage spike on output)
Output rated current: 30A (Handling 50% overload for 2 minutes)
Input/output Isolation
Overload protection – Error to be displayed on LCD
Overvoltage safety disconnection – Error to be displayed on LCD
Over temperature protection
Remote on/off control
Mass: minimum of 0.30kg.
Specific characteristics to meet thermal limits:
Use of SiC-MOSFETs to switch the power factor correction circuit at 80kHz
ZVS operation of the second stage of the converter switches using resonance tank
Use of Litz-wire to reduce the high-frequency transformer losses at high frequencies to meet
A short study on the benefits of proper digital control has been conducted and reported in a conference paper.
Due to the intellectual property, the figure of the final design has not been presented on this page.
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