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. 20, 2014
Filed:
Apr. 05, 2013
Ipgoal Microelectronics (Sichuan) Co., Ltd., Sichuan, CN;
Fangping Fan, Sichuan, CN;
IPGoal Microelectronics (Sichuan) Co., Ltd., Chengdu, Sichuan Province, CN;
Abstract
A frequency multiplier circuit with a function of automatically adjusting a duty cycle of an output signal includes an input terminal, a first detecting unit, a second detection unit, a duty cycle adjusting unit and a ground terminal; wherein the frequency multiplier control unit includes a first buffer, an AND gate, a first NOR gate and a second NOR gate; wherein the first detecting unit includes an inverter, a first resistance and a first capacitance; wherein the second detecting unit includes a second buffer, a second resistance and a second capacitance; wherein the duty cycle adjusting unit includes a comparator connected to the first resistance, the first capacitance, the second resistance, the second capacitance and the first buffer. The present invention also provides a frequency multiplier system thereof. The present invention is capable of automatically adjusting a duty cycle of an output signal to 50%.