Patent ID: 11949328
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A power factor correction converter that outputs a DC output voltage from an AC input voltage, the power factor correction converter comprising:
a first high-side switch and a first low-side switch connected in cascade between a positive output terminal and a negative output terminal of the power factor correction converter and with a first node between the first high-side switch and the first low-side switch;
a second high-side switch and a second low-side switch connected in cascade between the positive output terminal and the negative output terminal and with a second node between the second high-side switch and the second low-side switch;
an inductor connected to a first terminal of the AC input voltage and the first node;
a gate driver connected to the second high-side switch and the second low-side switch;
a bootstrap circuit connected to the second node and the gate driver; wherein
the second node is connected to a second terminal of the AC input voltage; and
the bootstrap circuit is pre-charged at beginnings of negative half-cycles of the AC input voltage.