Circuit for monitoring of loads
US5331314A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1992 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Feb 26, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q11/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A circuit is described for monitoring of loads having measuring resistors in the load circuit. The circuit evaluates the measuring voltage drops obtained at the measuring resistors. The circuit comprises at least one comparator stage made up of a reference current section and a comparator section. A temperature-dependent reference current is formed in the reference current section and supplied to the comparator section, with the temperature-dependent reference current comprising a voltage-independent component and a voltage-dependent component. The comparator section comprises one or more input branches, corresponding comparator branches, and a reference branch. The comparator branch compares the reference current flowing in the reference branch with the input currents flowing in the input branches and representing a measure for the measuring voltage drops obtained at the measuring resistors and applied to the inputs of the comparator stages. Depending on this comparison, a certain voltage level is emitted at the outputs of the comparator stages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.