Control loop arrangement, circuit arrangement and method of regulating a load-coupled current source and the supply voltage therefor
US9158316B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2011 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Aug 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0067
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement includes a load current controller (10a) and a monitoring device (11a, 11b). The load current controller (10a) has its input side connected to a first reference signal connection (A6) and a load reference connection (A2), the latter being able to be coupled to an output of the current source (SQn) and being designed to provide a control signal (IB) at an output which is coupled to a control connection (A1) for controlling the current source (SQn). The control signal (IB) is determined on the basis of a comparison of a load current (IL) with a first reference signal (IL-REF, IREF, VREF). The monitoring device (11a, 11b) has its input side coupled to the output of the load current controller (10a) and to one of the inputs of the load current controller (10a). The monitoring device (11a, 11b) is designed to provide a feedback signal (RS) at an output coupled to the feedback connection (A3) on the basis of a comparison of the control signal (IB) with the load current (IL). The feedback connection (A3) provides an external feedback signal (ERS) for adjusting a load voltage (VL) which drops across the current source (SQn) and the load (LK) coupled thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.