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:
Mar. 01, 2022

Filed:

Jan. 29, 2020
Applicant:

Stmicroelectronics S.r.l., Agrate Brianza, IT;

Inventor:

Marco Martini, Acireale, IT;

Assignee:

STMicroelectronics S.r.l., Agrate Brianza, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); H02M 3/07 (2006.01); H03K 4/02 (2006.01); H03K 4/50 (2006.01); H02M 1/32 (2007.01); G05F 1/46 (2006.01);
U.S. Cl.
CPC ...
H02M 1/36 (2013.01); H02M 1/32 (2013.01); H02M 3/07 (2013.01); H03K 4/023 (2013.01); H03K 4/50 (2013.01); G05F 1/461 (2013.01);
Abstract

In accordance with an embodiment, a method includes receiving an enable signal. After the enable signal is asserted, it is determined whether a soft-start capacitor is electrically connected to an input of a ramp generator circuit while keeping an output of the ramp generator circuit low. If the soft-start capacitor is electrically connected to the input of the ramp generator circuit, a first current is injected into the input of the ramp generator circuit to generate a first voltage ramp at the output of the ramp generator circuit. If the soft-start capacitor is not electrically connected to the input of the ramp generator circuit, a second current is injected to the input of the ramp generator circuit to generate a second voltage ramp at the output of the ramp generator circuit. The second current is smaller than the first current.


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