Voltage detector having improved characteristics
US6037762A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Dec 17, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/247
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention includes a circuit for detecting voltage levels in an integrated circuit including a first reference voltage(324), a first differential amplifier(349) having an inverting input terminal connected to the first reference voltage, a non-inverting input terminal and an output terminal, a first transistor (356) having a control terminal connected to the output terminal of the first differential amplifier, having a first current handling terminal connected to a voltage supply terminal and having a second current handling terminal connected to the non-inverting input terminal of the first differential amplifier, a first load (358) device having a first terminal connected to the second current handling terminal of the first transistor and a second terminal, a second load device (360) having a first terminal connected to the second of the first load device and a second terminal connected to a second reference potential, a second differential amplifier (391) having an inverting input terminal, a non-inverting input terminal in connected to the first terminal of the second load device and having an output terminal, the output terminal providing voltage detection output s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.