Терраэлектроника

Isolated Octo-output Fly-Buck Bias for IGBT Driver - Reference Design (PMP10531)

The PMP10531 reference design is an 8-output isolated Fly-Buck power supply for IGBT gate driver in motor drive or high voltage inverter applications. It takes 24V nominal input and provides 4 isolated sets of (+15V, -8V) bias voltage. The board is designed to provide driver bias power for 6 IGBTs in 3-phase configuration: 3 sets of outputs for the 3 top side IGBTs with 100mA output current, and 1 set of 300mA outputs for all the bottom IGBTs. Each set of positive/negative rails is generated from one single transformer windings using voltage split circuit. A compact solution size is achieved (62x55mm). The design features the LM5160 synchronous buck converter configured as a Fly-Buck regulator. With the benefit of primary side regulation, the supply has the outputs regulated without the opto-coupler or additional transformer winding. The LM5160 has a wide Vin range of 4.5V to 65V and 1.5A output current capability with integrated switch FETs. The input voltage to the reference board can be loosely regulated with a range of 20V to 30V.

Возможности

• Eight isolated outputs, 1x(+15V/-8V @ 300mA), 3x(+15V/-8V @ 100mA), ideal for 3-phase AC motor and inverter applications • Fly-Buck converter design, primary side regulation, compact solution for multiple isolated output supply • Wide input voltage rangeof 20V to 30V • Provides 2.3W supply power for eachof the 6 IGBT drivers, 82% peak efficiency. • LM5160 sync buck regulator, up to 65V wide Vin range, 1.5A capability • This circuit board is tested, and the design files and test report are included.

Файлы

Схемы и диаграммы

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Тесты и симуляция

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Спецификация (BOM)

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Isolated Octo-output Fly-Buck Bias for IGBT Driver - Reference Design PMP10531

Возможность заказа

Покупка BOM PMP10531

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