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. 28, 2023
Filed:
May. 12, 2020
Montage Technology (Kunshan) Co., Ltd., Jiangsu, CN;
Montage Technology (Kunshan) Co., Ltd., Jiangsu, CN;
Abstract
The present disclosure provides a switching current source circuit and a method for quickly establishing a switching current source. The switching current source circuit includes a first and a second switching current source branches connected in parallel with one end of a load. When the switching enable signal is switched, due to the charge coupling of the first and second switching current source branches, the bias voltage respectively generates bounce in the same direction as and a direction opposite to the transition direction of the switching enable signal. The two bounces cancel each other to make the current source bias voltage recover quickly when a toggle event happens. The present disclosure accelerates the establishment of current through the coupling of charges, and reduces the decoupling capacitance at the same time, thereby reducing the circuit area and saving the costs.