Method and apparatus for initiating the automatic regulation of a power supply
US5268831A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 1991 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Jun 18, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/36
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In order to initiate the automatic regulation of the operating current of a current source in a power supply unit upon closing the operating load circuit connected to the current source, it is proposed that the current source is controlled by presetting the circuit parameters such that the current flowing in the operating load circuit upon closing the operating load circuit reaches a preset or desired value. The current regulation is brought into effect as soon as the difference between the effective value and the preset desired value of the current flowing in the operating load circuit falls below a predetermined threshold value. For this purpose, a regulation circuitry is provided, comprising a voltage regulator, a current regulator and a switching circuitry with a threshold value circuit. The switching circuitry generates a switching signal which effects the change from the initial voltage regulation to the subsequent current regulation as soon as the operating current exceeds a preset value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.