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:
Jan. 21, 2025
Filed:
May. 12, 2023
Db Hitek Co., Ltd., Bucheon-si, KR;
DB HiTek Co., Ltd., Bucheon-si, KR;
Abstract
Disclosed is a low-voltage detection floating N-well bias circuit. The circuit includes a power detector configured to detect states of first power (VDD) and second power (DVDD) at different power levels; a switch configured to perform a switching operation according to the states of the first power (VDD) and the second power (DVDD); and a voltage output circuit configured to output the first power (VDD) or the second power (DVDD) as an N-well bias voltage according to the states of the first power (VDD) and the second power (DVDD) and the switching operation of the switch. Accordingly, when the first power (VDD) and the second power (DVDD) are supplied and the second power (DVDD) has a low voltage state, the floating N-well bias circuit can continuously bias an N-well with the second power (DVDD), without dropping the second power (DVDD).