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:
Nov. 06, 2018
Filed:
Dec. 30, 2017
Active-semi, Inc., Tortola, VG;
Masashi Nogawa, Sachse, TX (US);
Active-Semi, Inc., , VG;
Abstract
A DC-to-DC converter employs peak current mode control and includes a cycle skipping prevent circuit. If a latch is set, then a high side switch is turned on. A comparator receives a signal indicative of current flow and a compensated error signal. The prevent circuit supplies a delayed version of a low duty cycle, fixed frequency, oscillator signal onto the set input lead of the latch. The prevent circuit gates a high signal as output by the comparator onto the reset input lead of the latch. If the output of the comparator has, however, not transitioned high by a predetermined time, then the prevent circuit gates a high pulse onto the reset input lead. Accordingly, the prevent circuit ensures that the latch is reset once every period of the signal SET. A cycle skipping prevent circuit is also disclosed for use in a converter that employs valley current mode control.