Device and method for generating a negative voltage for a high side switch in an inverter

    公开(公告)号:US10270366B2

    公开(公告)日:2019-04-23

    申请号:US15831821

    申请日:2017-12-05

    Applicant: Hanon Systems

    Abstract: A configuration and a method for generating a negative voltage for a high-side switch in an inverter by providing at least one negative bias voltage for an inverter, wherein a simple and safe provision of the negative voltage becomes possible, and the switching costs as well as the costs and expenses for the production of such an inverter are reduced. A secondary winding generating a negative base voltage is arranged on a flyback transformer, wherein a first terminal of the secondary winding is connected to the HV+ potential and a second terminal of the secondary winding is connected via a rectifier diode to the first terminal for outputting the negative base voltage, wherein a bootstrap diode is arranged between the first terminal and a second terminal for outputting a negative base voltage (NEG BIAS A), and wherein a bootstrap capacitor is arranged between the first terminal and the second terminal.

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