Current source regulator
AssigneeAms AG
InventorPramod Singnurkar
Life of this patent
Estimating the term…
Abstract
A current source regulator for controlling an output device (Mp) of current source, the output device (Mp) providing an output current (Isrc) to a load. The current source regulator comprises a first feedback loop (1) and second feedback loop (2). The first feedback loop (1) includes a first sensing path to provide a first sensing signal (Is1) for comparison with a first reference to generate a first control signal. The second feedback loop (2) comprises a second sensing path to provide a second sensing signal (Is3, Is3′) for comparison with a second reference (Ib5) to generate a charging current signal (Icharge). The charging current signal (Icharge) is applied to the control signal during a transient state of the current source regulator.
Claims16
A current source regulator for controlling an output device of a current source, the output device providing an output current to an output terminal, to which a load is connected, in response to a signal at a common node, the current source regulator comprising:
- a first feedback loop to provide a first control signal to the common node, said first feedback loop having a first sensing path to provide a first sensing signal for a comparison with a first reference for generating the first control signal;
- a second feedback loop having a second sensing path to provide a second sensing signal for a comparison with a second reference to generate a charging current signal, said charging current signal being applied to the common node during a transient state of the current source regulator,
- wherein the second feedback loop comprises a comparator assembly configured to provide the charging current signal, and wherein the charging current signal is based in part on a difference between the second reference and the second sensing signal times a constant when the second sensing signal times the constant does not exceed the second reference, and the charging current signal is zero when the second sensing signal times the constant exceeds the second reference.
Dependencies are inferred from the claim text.