The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 01, 2025

Filed:

Apr. 14, 2023
Applicant:

Honeywell International Inc., Charlotte, NC (US);

Inventors:

Pavel Studnicka, Brno, CZ;

Petr Spanel, Brno, CZ;

Ondrej Kotaba, Brno, CZ;

Jiri Holy, Brno, CZ;

Assignee:

HONEYWELL INTERNATIONAL INC., Charlotte, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/08 (2006.01); H02M 1/00 (2007.01); H03K 17/691 (2006.01); H02M 3/155 (2006.01); H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H02M 1/08 (2013.01); H02M 1/0006 (2021.05); H03K 17/691 (2013.01); H02M 3/155 (2013.01); H02M 3/335 (2013.01); H03K 2217/0063 (2013.01); H03K 2217/0072 (2013.01);
Abstract

A DC-DC converter circuit includes a high-side transistor, a low side transistor, a gate driver power supply, a converter control, and a capacitance divider network. The high-side transistor includes a high-side drain terminal, a high-side source terminal, and a high-side gate terminal. The high-side drain terminal is coupled to a positive DC supply terminal. The gate driver power supply is electrically isolated from the high-side transistor and the low-side transistor. The converter control is configured to supply high-side control commands and low-side control commands to the high-side transistor and the low-side transistor, respectively. The capacitance divider network includes a first capacitor and a second capacitor. The first capacitor is electrically connected in series, at a DC-link midpoint node, to the second capacitor. The DC-link midpoint node, the gate driver power supply, and the converter control are all electrically connected to, and share, a local electrical ground.


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