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:
Apr. 28, 2026
Filed:
Oct. 08, 2021
Acleap Power Inc., Taipei City, TW;
Fei Ji, Princeton, NJ (US);
AcLeap Power Inc., Taipei City, TW;
Abstract
In one aspect, a bidirectional bridgeless power factor correction (PFC) circuit includes a main circuit, a current detection circuit, and a controller. The main circuit includes an input inductor and is configured to receive an alternating current (AC) voltage from an AC power supply at a first terminal of the input inductor and convert the AC voltage to a direct current (DC) voltage, where a direction of a current flowing through the input inductor during a positive half of the AC voltage is different from a direction of the current flowing through the input inductor during a negative half of the AC voltage. The current detection circuit is configured to generate a detection signal indicating an amount of the current flowing through the input inductor only during a discharge phase of the input inductor. The controller is configured to generate a zero-crossing signal based on the detection signal.