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. 28, 2019
Filed:
Jun. 29, 2018
Renesas Electronics Corporation, Tokyo, JP;
Koichiro Noguchi, Tokyo, JP;
Koichi Nose, Tokyo, JP;
Yoshifumi Ikenaga, Tokyo, JP;
Yoichi Yoshida, Tokyo, JP;
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor device includes: a first switch SWx which switches whether or not to supply a first power supply voltage Vx generated by accumulating a charge outputted from a power source, as a second power supply voltage VDD to a first circuit, and a second switch SWwhich switches whether or not to connect to the first circuita smoothing capacitor Cwhich suppresses a fluctuation of the second power supply voltage VDD, and the first switch SWx is switched to an on state in response to that the first power supply voltage Vx has reached a sufficient voltage, and then the second switch SWis switched to the on state in response to that the second power supply voltage VDD has reached a sufficient voltage.