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:
Jun. 11, 2019
Filed:
Dec. 06, 2016
Renesas Electronics Corporation, Tokyo, JP;
Soichi Kobayashi, Tokyo, JP;
Akira Oizumi, Tokyo, JP;
Yoshihiko Yasu, Tokyo, JP;
Hiromi Notani, Tokyo, JP;
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Abstract
A data processing device includes a load circuit including a central processing unit and operated by supplied electric power, a step-down power supply circuit stepping down an external power supply voltage and including an output node coupled to the load circuit, the step-down power supply circuit including a first step-down unit stepping down the external power supply voltage, and a bias current control circuit controlling a magnitude of bias current flowing through an auxiliary path from the output node to a ground, the auxiliary path is separate from a path to the load circuit, and a control circuit increasing the magnitude of the bias current, prior to a change of an operation state of the load circuit by which a relatively large change occurs to an amount of current consumed by the load circuit.