Power converter with diagnostic unit power supply output

摘要

A power converter includes positive and negative input lines and an input capacitor coupled across the input lines. The power converter also includes a switch coupled across the input lines that includes a control contact and an additional contact. The power converter also includes switch controller coupled to the control contact and that includes positive and negative input connections. The power converter also includes a contactor diagnostic supply interface coupled between the positive input connection and the additional contact.

主权项

1. A power converter for use in a vehicle that includes a fuel cell and an electric motor, the power converter comprising:
input lines including a positive input line that delivers a first voltage and a negative input line that delivers a second voltage; an input capacitor coupled across the input lines; a switch coupled across the input lines and including a control contact and an additional contact, the additional contact coupled to the positive input line; a switch controller coupled to the control contact, the switch controller including positive and negative input connections and an output connection coupled to the positive input line and the additional contact; and a contactor diagnostic supply interface coupled between the positive input connection and the additional contact, wherein the additional contact, the switch controller, and the contactor diagnostic supply interface share the first voltage.