Hi,

I don't know if there's much behind this. According to the circuit below, I intend to add a led to indicate whether the bulk capacitor is charged or not. The rectified and filtered voltage is about 170VDC. The voltage drop across the led is around 2V. For a current of 20 mA through the led if the capacitor is fully charged, R = 170-2/20mA = 8.4k ohms. , which throws a power rating around 3W. But I think there's something wrong. Any comments?

I don't know if there's much behind this. According to the circuit below, I intend to add a led to indicate whether the bulk capacitor is charged or not. The rectified and filtered voltage is about 170VDC. The voltage drop across the led is around 2V. For a current of 20 mA through the led if the capacitor is fully charged, R = 170-2/20mA = 8.4k ohms. , which throws a power rating around 3W. But I think there's something wrong. Any comments?

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