MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET

MP020A-5 Rev. 1.0

www.MonolithicPower.com

17

6/23/2017

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2017 MPS. All Rights Reserved.

have the same turns and approximate parasitic

opposite (Point 9 and Point 10 in Figure 15).

Therefore, the common mode noise current

produced at the secondary-side windings can

counteract each other.

The transformer structure is simple if the

application does not need to pass the 3-wire

conducted EMI or uses a Y-cap. Figure 16

shows a schematic with a simple transformer

structure.