Title:
【発明の名称】電圧検出装置および電子装置
Document Type and Number:
Japanese Patent JP3058381
Kind Code:
B2
Abstract:
A power supply voltage detecting circuit includes: a depletion MOS transistor (21) having its source and gate connected to the base thereof; and an enhancement MOS transistor (22) which is serially connected to the depletion MOS transistor (21), which has its source connected to its base, and which is fed an output of a voltage divider (23, 24) through its gate. Therefore, the production yield can be greatly improved, and the production costs can be greatly reduced.
Inventors:
Takai Masami
Application Number:
JP3242793A
Publication Date:
July 04, 2000
Filing Date:
January 29, 1993
Export Citation:
Assignee:
株式会社リコー
International Classes:
G01R19/165; H03K5/08; (IPC1-7): G01R19/165; H03K5/08
Domestic Patent References:
| JP5311068A | ||||
| JP55128162A | ||||
| JP5373340A | ||||
| JP6134471A |
Attorney, Agent or Firm:
Makoto Monda