This reference design is a 2.2-W multi-output flybuck design for isolated gate-drive bias supplies. The supply is designed to accept an input from 24-V systems. This design uses the LM36520 synchronous buck converter to generate four isolated outputs. Primary-side regulation maintains each of the four 17-V outputs within ±10%.

• Four 17-V isolated outputs
• Achieves ±10% output voltage accuracy on non-regulated outputs
• PSR eliminates need for an optocoupler
• Transformer designed to comply with: IEC61800-5-1

• Servo drive power supply module

Board Top Photo

Bottom Side Photo