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:
Oct. 06, 2026
Filed:
Jun. 19, 2025
Rohm Co., Ltd., Kyoto, JP;
Hiroshi Tsuchi, Kyoto, JP;
ROHM Co., Ltd., Kyoto, JP;
Abstract
A voltage detection circuit includes: a self-bias unit, generating a self-bias voltage based on a reference voltage; and detection units, comparing magnitudes of each voltages as a detection target and a reference voltage, and outputting first to nvoltage detection signals indicating whether the voltage is higher than the reference voltage. Each detection units includes: fifth and sixth transistors, respective drains being connected, and, with respective gates receiving one of the voltages, the fifth and sixth transistors outputting a voltage generated at the respective drains as one of the voltage detection signals; seventh and eighth transistors, respectively supplying a current corresponding to the self-bias voltage to the fifth and sixth transistors. The voltage detection circuit includes a current source transistor, causing an operating current based on a bias voltage received by the gate to flow through the self-bias unit and the detection units.