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:
Apr. 14, 2025

Filed:

Jan. 20, 2022
Applicant:

Signify Holding B.v., Eindhoven, NL;

Inventors:
Assignee:

SIGNIFY HOLDING B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 45/325 (2019.12); H05B 45/14 (2019.12); H05B 45/382 (2019.12);
U.S. Cl.
CPC ...
H05B 45/325 (2019.12); H05B 45/14 (2019.12); H05B 45/382 (2019.12);
Abstract

An isolated driver generates a PWM load drive level signal at the primary side and provides this to the secondary side via an optocoupler. Power consumption of the load is also sensed at the primary side. A drive level is sensed at the secondary side and compared at the secondary side with the load drive level to provide an error signal for the primary side controller. A frequency of the PWM load drive level signal is adjusted and the power consumption of the load is monitored in response to the frequency adjustment. The duty cycle of the PWM load drive level signal can then be adapted to compensate for errors introduced by the optocoupler.


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