Tdk Corporation · TSE:6762
Tdk — Investor Presentation (May 2021)
9 slides from Tdk's investor presentation, May 2021
Slide 1: Coupled inductors
Coupled inductors Versatile components for diverse DC/DC converter topologies TDK Electronics AG Magnetics Business Group Munich, Germany May 2021
Slide 2: Selection guide
Selection guide Topology Series / Size Design Inductance Rated current Coupling factor (Per winding) (Max. permissible DC) B82472D6 Shielded 2.2 to 47 µH 1.1 to 4.30 A 97 to 99% typ. 7.3 x 7.3 x 4.8 mm Temp. +150 °C Functional isolation up to 500 V NEW Tight coupling Compact size B82464D6 Shielded 2
Slide 3: Overview topologies (1)
Overview topologies (1) Multi Output SEPIC ZETA CUK Flyback Buck Power range Low power Low power Low power Low power Low power Typical efficiency Up to 90% Up to 90% Up to 90% Up to 75% Up to 85% Required coupling High High Low High High Output voltage Non-inverted Non-inverted Inverted Non-inverted
Slide 4: Overview topologies (2): SEPIC
Overview topologies (2) SEPIC (Single-Ended Primary Inductance Converter) P Provides a constant non-inverted output voltage that can be above or below the input voltage. P Offers a continuous input current which is reducing pulse current drain from the battery. P The input filter consisting of C1 an
Slide 5: Overview topologies (3): ZETA
Overview topologies (3) ZETA P Provides a constant non-inverted output voltage that can be above or below the input voltage. P Offers a continuous output current with a low ripple. P Like SEPIC, the coupling capacitor offers some limited DC isolation between the input and output. P Just requires one
Slide 6: Overview topologies (4): CUK
Overview topologies (4) CUK P CuK converters have the ability to regulate a voltage that is above or below the input voltage. P This topology provides an inverted output voltage. P Offers a continuous current flow at the input which is minimizing the pulse current drain from the battery. P A benefit
Slide 7: Overview topologies (5): Flyback
Overview topologies (5) FLYBACK P Flyback converters have a relatively simple and therefore cost-efficient design. P Can generate non-inverted output voltages which are far below or above the input voltage. P Multiple output voltages are possible. P The coupled inductor provides a real galvanic isol
Slide 8: Overview topologies (6): Multi Output Buck
Overview topologies (6) MULTI OUTPUT BUCK P Coupled inductors can be used to create an auxiliary and second output voltage respectively. P Save costs. P Reduces complexity on the board. P Just one buck regulator required. Series Size [mm] Inductance [µH] (per winding) B82472D6 7.3 x 7.3 x 4.8 2.2 to
Slide 9: www.tdk.com
www.tdk.com