CA2449311A1 - Integrated circuit with analog and digital portions and including thermal modeling - Google Patents
Integrated circuit with analog and digital portions and including thermal modeling Download PDFInfo
- Publication number
- CA2449311A1 CA2449311A1 CA002449311A CA2449311A CA2449311A1 CA 2449311 A1 CA2449311 A1 CA 2449311A1 CA 002449311 A CA002449311 A CA 002449311A CA 2449311 A CA2449311 A CA 2449311A CA 2449311 A1 CA2449311 A1 CA 2449311A1
- Authority
- CA
- Canada
- Prior art keywords
- electrical
- circuitry
- analog
- amplifiers
- ranging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Control Of Electric Motors In General (AREA)
- Electronic Switches (AREA)
- Amplifiers (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
A hybrid monolithic IC (10) that is standardized for controlling various types of electrical equipment, such as circuit breakers, motor controllers and the like. The IC is a hybrid monolithic IC, fabricated in CMOS technology. The IC includes an on-board microprocessor (30), an A/D subsystem (64) and various input/output devices which make it adaptable for use in various types of electrical equipment. In order to improve the resolution of the A/D subsystem, circuitry is provided, which includes current and voltage ranging amplifiers (Fig. 53) for ranging analog input voltage and current signals and compensating internal offsets, in such amplifiers, inherent in CMOS linear circuits which can affect the accuracy of the least significant bit.
Novel auto-zero circuitry (Figs. 36, 39, 40 and 41) is provided for controlling the offsets in the ranging amplifiers.
An electrical overcurrent circuit (FIG. 86) provides both digital based modeling (FIG. 85A) and analog based modeling (FIG. 85A) of the temperature of an electrical conductor to simulate the conductor temperature during all expected operating conditions including a condition when electrical power is unavailable to the electrical overcurrent circuitry.
Novel auto-zero circuitry (Figs. 36, 39, 40 and 41) is provided for controlling the offsets in the ranging amplifiers.
An electrical overcurrent circuit (FIG. 86) provides both digital based modeling (FIG. 85A) and analog based modeling (FIG. 85A) of the temperature of an electrical conductor to simulate the conductor temperature during all expected operating conditions including a condition when electrical power is unavailable to the electrical overcurrent circuitry.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/636,634 US5270898A (en) | 1990-12-28 | 1990-12-28 | Sure chip plus |
| US636,643 | 1990-12-28 | ||
| US07/636,643 US5525985A (en) | 1990-12-28 | 1990-12-28 | Sure chip |
| US636,634 | 1990-12-28 | ||
| US74922191A | 1991-08-23 | 1991-08-23 | |
| US749,221 | 1991-08-23 | ||
| CA002057941A CA2057941C (en) | 1990-12-28 | 1991-12-18 | Integrated circuit with analog and digital portions and including thermal modelling |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002057941A Division CA2057941C (en) | 1990-12-28 | 1991-12-18 | Integrated circuit with analog and digital portions and including thermal modelling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2449311A1 true CA2449311A1 (en) | 1992-06-29 |
| CA2449311C CA2449311C (en) | 2008-04-08 |
Family
ID=31192149
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002449311A Expired - Lifetime CA2449311C (en) | 1990-12-28 | 1991-12-18 | Integrated circuit with analog and digital portions and including thermal modeling |
| CA002449309A Expired - Lifetime CA2449309C (en) | 1990-12-28 | 1991-12-18 | Cmos circuit with analog and digital portions for transmitting over a communication network |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002449309A Expired - Lifetime CA2449309C (en) | 1990-12-28 | 1991-12-18 | Cmos circuit with analog and digital portions for transmitting over a communication network |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA2449311C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112084675B (en) * | 2020-09-17 | 2024-05-07 | 南方电网科学研究院有限责任公司 | Method and device for constructing digital twin body of GIS equipment and storage medium |
| CN112947521B (en) * | 2021-02-10 | 2022-10-28 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Multifunctional simulation platform of spacecraft measurement and control system |
-
1991
- 1991-12-18 CA CA002449311A patent/CA2449311C/en not_active Expired - Lifetime
- 1991-12-18 CA CA002449309A patent/CA2449309C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2449309C (en) | 2008-10-14 |
| CA2449309A1 (en) | 1992-06-29 |
| CA2449311C (en) | 2008-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |