Patent ID: 11942866
Assignee: CYPRESS SEMICONDUCTOR CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 12:
13. The IC controller of claim 10, wherein the error amplifier further comprises offset cancellation circuitry coupled to outputs of the first transconductance amplifier and the second transconductance amplifier, the offset cancellation circuitry to:
one of detect a first direct current (DC) voltage offset at an input of the first transconductance amplifier while in the constant voltage mode or a second DC voltage offset at an input of the second transconductance amplifier while in the constant current mode;
in response to detection of the first DC offset, sink a first equivalent current from the first transconductance amplifier to cancel the first DC voltage offset, wherein the first equivalent current corresponds to a programmable transconductance of the first transconductance amplifier; and
in response to detection of the second DC offset, sink a second equivalent current from the second transconductance amplifier to cancel the second DC voltage offset, wherein the second equivalent current corresponds to a programmable transconductance of the second transconductance amplifier.