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.
Patent No.:
Date of Patent:
May. 17, 2022
Filed:
May. 12, 2021
Renesas Electronics America Inc., Milpitas, CA (US);
Marco Sautto, Zurich, CH;
Sercan Ipek, Zurich, CH;
Jiangjian Huang, San Jose, CA (US);
Turev Acar, San Diego, CA (US);
Renesas Electronics America Inc., Milpitas, CA (US);
Abstract
Methods and apparatuses for controlling a rectified voltage outputted by a rectifier circuit is described. In response to an occurrence of an overvoltage condition, an apparatus can regulate a gate-source voltage of a low-side switching element of the rectifier circuit to control the rectified voltage. The apparatus can include an operational amplifier that can compare a reference voltage and with a scaled voltage measured at a node between the low-side switching element and a high-side switching element of the rectifier circuit. The operational amplifier can output a voltage to regulate a gate-source voltage of a low-side switching element. The apparatus can further include a current sensor configured to sense current flowing through the low-side switching element. A power dissipation of the low-side switching element can be controlled based on the current being sensed by the current sensor.