Inverter high voltage capacitor discharge

4 FAQs about [Inverter high voltage capacitor discharge]

Do EV traction inverters need a DC link active discharge?

Every EV traction inverter requires a DC link active discharge as a safety-critical function. The discharge circuit is required to discharge the energy in the DC link capacitor under the following conditions and requirements: Power transistor on, off control using the TPSI3050-Q1.

What is a DC link capacitor?

For this reason, a capacitor (referred to as a DC link capac-itor) is typically connected between the positive and neg-ative lines, so as to absorb ripple caused by the switching in the inverter. The DC link capacitor thus ensures a steady and reliable voltage across the inverter. The high voltage input voltage is received over

What is a DC-link capacitor in a traction inverter?

Figure 1. Simplified Block Diagram of a Traction Inverter The DC-Link capacitor is a part of every traction inverter and is positioned in parallel with the high-voltage battery and the power stage (see Figure 1). The DC-Link capacitor has several functions, such as to help smooth voltage ripples, filtering unwanted harmonics and reducing noise.

What is an active discharge circuit for electric vehicle inverter?

1. An active discharge circuit (10) for electric vehicle inverter (1), the active discharge circuit intended to be connected in parallel with a DC link capacitor (5) connected between positive and negative lines (3,

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