Voltage detector
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tector 发明人：木村 利夫,笹崎 公寿 申请号：JP特願昭61-100158 申请日：198604 30 公开号：JP特公平7-97118B2 公开日：19951018
摘要：PURPOSE:To achieve high speed operation over a wide voltage range of a power source at low power consumption without performing sampling operation, by determining a rotary operation current by a depression MIS transistor. CONSTITUTION:A reference voltage generating circuit consists of a P-type gate P-type MIS transistor MP1, a P-type MIS transistor MP2 having a current characteristic almost equal to that of MP1 and N-type MIS transistor MN1, MN2 having the same current characteristic and output voltage Vref comes to VDD-1, 1v regardless of each threshold voltage. A comparator consists of PMIS, MP4 operating as current source and MP5, MP6, MN5 and MN6 constituting a differential transistor. Herein, MN5 and MN6 have the same current characteristic and MP5 is a P-type MIS transistor having current capacity equal to that of MP6 of which gate type is set to a P-type.
申请人：セイコーエプソン株式会社 地址：東京都新宿区西新宿2丁目4 番1号 国籍：JP 代理人：鈴木 喜三郎 (外2名) 更多信息请下载全文后查看
摘要：PURPOSE:To achieve high speed operation over a wide voltage range of a power source at low power consumption without performing sampling operation, by determining a rotary operation current by a depression MIS transistor. CONSTITUTION:A reference voltage generating circuit consists of a P-type gate P-type MIS transistor MP1, a P-type MIS transistor MP2 having a current characteristic almost equal to that of MP1 and N-type MIS transistor MN1, MN2 having the same current characteristic and output voltage Vref comes to VDD-1, 1v regardless of each threshold voltage. A comparator consists of PMIS, MP4 operating as current source and MP5, MP6, MN5 and MN6 constituting a differential transistor. Herein, MN5 and MN6 have the same current characteristic and MP5 is a P-type MIS transistor having current capacity equal to that of MP6 of which gate type is set to a P-type.
申请人：セイコーエプソン株式会社 地址：東京都新宿区西新宿2丁目4 番1号 国籍：JP 代理人：鈴木 喜三郎 (外2名) 更多信息请下载全文后查看